The `test_expect_*` functions use `test_eval_` and so does
`test_run_lazy_prereq_`. If tracing is enabled via the `-x` option,
`test_eval_` turns on tracing while evaluating the code block, and turns
it off directly after it.
This is unwanted for nested invocations.
One somewhat surprising example of this is when running a test that
calls `test_i18ngrep`: that function requires the `C_LOCALE_OUTPUT`
prereq, and that prereq is a lazy one, so it is evaluated via
`test_eval_`, the command tracing is turned off, and the test case
continues to run _without tracing the commands_.
Another somewhat surprising example is when one lazy prereq depends on
another lazy prereq: the former will call `test_have_prereq` with the
latter one, which in turn calls `test_eval_` and -- you guessed it --
tracing (if enabled) will be turned off _before_ returning to evaluating
the other lazy prereq.
As we will introduce just such a scenario with the GPG, GPGSM and
RFC1991 prereqs, let's fix that by introducing a variable that keeps
track of the current trace level: nested `test_eval_` calls will
increment and then decrement the level, and only when it reaches 0, the
tracing will _actually_ be turned off.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It makes no sense to call `./lib-gpg.sh`. Therefore the hash-bang line
is unnecessary.
There are other similar instances in `t/`, but they are too far from the
context of the enclosing patch series, so they will be addressed
separately.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The mechanism to prevent "git commit" from making an empty commit
or amending during an interrupted cherry-pick was broken during the
rewrite of "git rebase" in C, which has been corrected.
* pw/advise-rebase-skip:
commit: give correct advice for empty commit during a rebase
commit: encapsulate determine_whence() for sequencer
commit: use enum value for multiple cherry-picks
sequencer: write CHERRY_PICK_HEAD for reword and edit
cherry-pick: check commit error messages
cherry-pick: add test for `--skip` advice in `git commit`
t3404: use test_cmp_rev
The real_path() convenience function can easily be misused; with a
bit of code refactoring in the callers' side, its use has been
eliminated.
* am/real-path-fix:
get_superproject_working_tree(): return strbuf
real_path_if_valid(): remove unsafe API
real_path: remove unsafe API
set_git_dir: fix crash when used with real_path()
Revamping of the advise API to allow more systematic enumeration of
advice knobs in the future.
* hw/advise-ng:
tag: use new advice API to check visibility
advice: revamp advise API
advice: change "setupStreamFailure" to "setUpstreamFailure"
advice: extract vadvise() from advise()
In Git for Windows' SDK, we use the MSYS2 version of OpenSSH, meaning
that the `gpg-agent` will fail horribly when being passed a `--homedir`
that contains colons.
Previously, we did pass the Windows version of the absolute path,
though, which starts in the drive letter followed by, you guessed it, a
colon.
Let's use the same trick found elsewhere in our test suite where `$PWD`
is used to refer to the pseudo-Unix path (which works only within the
MSYS2 Bash/OpenSSH/Perl/etc, as opposed to `$(pwd)` which refers to the
Windows path that `git.exe` understands, too).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When debugging a test (or a set of tests), it's common to execute it
with some combination of short options, such as:
$ ./txxx-testname.sh -d -x -i
In cases like this, CLIs usually allow the short options to be bundled
in a single argument, for convenience and agility. Let's add this
feature to test-lib, allowing the above command to be run as:
$ ./txxx-testname.sh -dxi
(or any other permutation, e.g. '-ixd')
Note: Short options that require an argument can also be used in a
bundle, in any position. So, for example, '-r 5 -x', '-xr 5' and '-rx 5'
are all valid and equivalent. A special case would be having a bundle
with more than one of such options. To keep things simple, this case is
not allowed for now. This shouldn't be a major limitation, though, as
the only short option that requires an argument today is '-r'. And
concatenating '-r's as in '-rr 5 6' would probably not be very
practical: its unbundled format would be '-r 5 -r 6', for which test-lib
currently considers only the last argument. Therefore, if '-rr 5 6' were
to be allowed, it would have the same effect as just typing '-r 6'.
Note: the test-lib currently doesn't support '-r5', as an alternative
for '-r 5', so the former is not supported in bundles as well.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since commit 6b7728db81, (t7063: work around FreeBSD's lazy mtime
update feature, 2016-08-03), we started to use ls as a trick to update
directory's mtime.
However, `-ls` flag isn't required by POSIX's find(1), and
busybox(1) doesn't implement it.
Use "-exec ls -ld {} +" instead.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Only HEAD's object_id is necessary, rev-list is an overkill.
Despite POSIX requires grep(1) treat single pattern with <newline>
as multiple patterns.
busybox's grep(1) (as of v1.31.1) haven't implemented it yet.
Use rev-parse to simplify the test and avoid busybox unimplemented
features.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Alpine Linux's default unzip(1) doesn't support `-a`.
Skip those tests on that platform.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
test_lazy_prereq will be evaluated in a throw-away directory.
Drop unnecessary subshell and mkdir.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shell recognises first non-assignment token as command name.
With /bin/sh linked to either /bin/bash or /bin/dash,
`cd t/perf && ./p0000-perf-lib-sanity.sh -d -i -v` reports:
> test_cmp:1: command not found: diff -u
Using `eval` to unquote $GIT_TEST_CMP as same as precedence in `git_editor`.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
BRE interprets `+` literally, and
`\+` is undefined for POSIX BRE, from:
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_03_02
> The interpretation of an ordinary character preceded
> by an unescaped <backslash> ( '\\' ) is undefined, except for:
> - The characters ')', '(', '{', and '}'
> - The digits 1 to 9 inclusive
> - A character inside a bracket expression
This test is failing with busybox sed, the default sed of Alpine Linux
We have 2 options here:
- Using literal `+` because BRE will interpret it as-is, or
- Using character class `[+]` to defend against a sed that expects ERE
ERE-expected sed is theoretical at this point,
but we haven't found it, yet.
And, we may run into other problems with that sed.
Let's go with first option and fix it later if that sed could be found.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test_must_fail function should only be used for git commands since
we should assume that external commands work sanely. Since test_cmp() just
wraps an external command, replace `test_must_fail test_cmp` with
`! test_cmp`.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In t7600, we were rewriting `printf '%s\n' ...` to create files from
parameters, one per line. However, we already have a function that wraps
this for us: test_write_lines(). Rewrite these instances to use that
function instead of open coding it.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Via trace2, Git can already log interesting config parameters (see the
trace2_cmd_list_config() function). However, this can grant an
incomplete picture because many config parameters also allow overrides
via environment variables.
To allow for more complete logs, we add a new trace2_cmd_list_env_vars()
function and supporting implementation, modeled after the pre-existing
config param logging implementation.
Signed-off-by: Josh Steadmon <steadmon@google.com>
Acked-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a test case is run in a subshell, we finalize the JUnit-style XML
when said subshell exits. But then we continue to write into that XML as
if nothing had happened.
This leads to Azure Pipelines' Publish Test Results task complaining:
Failed to read /home/vsts/work/1/s/t/out/TEST-t0000-basic.xml.
Error : Unexpected end tag. Line 110, position 5.
And indeed, the resulting XML is incorrect.
Let's "re-open" the XML in such a case, i.e. remove the previously added
closing tags.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add missing spaces before '&&' and switch tabs around '&&' to spaces.
Also fix the space after redirection operator in t3701 while we're here.
These issues were found using `git grep '[^ ]&&$'` and
`git grep -P '&&\t' t/`.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
For shell scripts, the usual convention is for there to be no space
after redirection operators, (e.g. `>file`, not `> file`). Remove these
spaces wherever they appear.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When t3419 was originally written, it was designed to run a smaller test
for correctness, and then the same test with a larger number of patches
for performance. But it seems unlikely the latter was helping us:
- it was marked with EXPENSIVE, so hardly anybody ran it anyway
- there's no indication that it was more likely to find bugs than the
smaller case (the commit message isn't very helpful, but the original
cover letter describes it as: "The first patch adds correctness and
(optional) performance tests".
- the timing results are shown only via test_debug(). So also not run
unless the user says "-d", and then not provided in any
machine-readable form.
If we're interested in performance regressions, a script in t/perf would
be more appropriate. I didn't add one here, because it's not at all
clear to me that what the script is timing is even all that interesting.
Let's simplify the script by dropping the EXPENSIVE run. That in turn
lets us drop the do_tests() wrapper, which lets us consistently use
single-quotes for our test snippets. And we can drop the useless
test_debug() timings, as well as their run() helper. And finally, while
we're here, we can replace the count() helper with the standard
test_seq().
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This test runs a function which itself runs several assertions. The
last of these assertions cleans up the .git/rebase-apply directory,
since when run with EXPENSIVE set, the function is invoked a second time
to run the same tests with a larger data set.
However, as of 2ac0d6273f ("rebase: change the default backend from "am"
to "merge"", 2020-02-15), the default backend of rebase has changed, and
cleaning up the rebase-apply directory has no effect: it no longer
exists, since we're using rebase-merge instead.
Since we don't really care which rebase backend is in use, let's just
use the command "git rebase --quit", which will do the right thing
regardless.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The environment variable GIT_TEST_PACK_SPARSE was previously used
to allow testing the --sparse option for "git pack-objects" in
the test suite. This allowed interesting cases of "git push" to
also test this algorithm.
Since pack.useSparse is now true by default, we do not need this
variable to _enable_ the --sparse option, but instead to _disable_
it. This flips how we work with the variable a bit.
When checking for the variable, default to a value of -1 for
"unset". If unset, then take the default from the repo settings,
which is currently 1. Then, the --[no-]sparse command-line option
will override either of these settings.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The pack.useSparse config option was introduced by 3d036eb0
(pack-objects: create pack.useSparse setting, 2019-01-19) and was
first available in v2.21.0. When enabled, the pack-objects process
during 'git push' will use a sparse tree walk when deciding which
trees and blobs to send to the remote. The algorithm was introduced
by d5d2e93 (revision: implement sparse algorithm, 2019-01-16) and
has been in production use by VFS for Git since around that time.
The features.experimental config option also enabled pack.useSparse,
so hopefully that has also increased exposure.
It is worth noting that pack.useSparse has a possibility of
sending more objects across a push, but requires a special
arrangement of exact _copies_ across directories. There is a test
in t5322-pack-objects-sparse.sh that demonstrates this possibility.
This test uses the --sparse option to "git pack-objects" but we
can make it implied by the config value to demonstrate that the
default value has changed.
While updating that test, I noticed that the documentation did not
include an option for --no-sparse, which is now more important than
it was before.
Since the downside is unlikely but the upside is significant, set
the default value of pack.useSparse to true. Remove it from the
set of options implied by features.experimental.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Updates to the CI settings.
* js/ci-windows-update:
Azure Pipeline: switch to the latest agent pools
ci: prevent `perforce` from being quarantined
t/lib-httpd: avoid using macOS' sed
"git show" and others gave an object name in raw format in its
error output, which has been corrected to give it in hex.
* hd/show-one-mergetag-fix:
show_one_mergetag: print non-parent in hex form.
Fix for a bug revealed by a recent change to make the protocol v2
the default.
* ds/partial-clone-fixes:
partial-clone: avoid fetching when looking for objects
partial-clone: demonstrate bugs in partial fetch
The merge-recursive machinery failed to refresh the cache entry for
a merge result in a couple of places, resulting in an unnecessary
merge failure, which has been fixed.
* en/t3433-rebase-stat-dirty-failure:
merge-recursive: fix the refresh logic in update_file_flags
t3433: new rebase testcase documenting a stat-dirty-like failure
"git check-ignore" did not work when the given path is explicitly
marked as not ignored with a negative entry in the .gitignore file.
* en/check-ignore:
check-ignore: fix documentation and implementation to match
The code to automatically shrink the fan-out in the notes tree had
an off-by-one bug, which has been killed.
* jh/notes-fanout-fix:
notes.c: fix off-by-one error when decreasing notes fanout
t3305: check notes fanout more carefully and robustly
The index-pack code now diagnoses a bad input packstream that
records the same object twice when it is used as delta base; the
code used to declare a software bug when encountering such an
input, but it is an input error.
* jk/index-pack-dupfix:
index-pack: downgrade twice-resolved REF_DELTA to die()
"git rebase -i" identifies existing commits in its todo file with
their abbreviated object name, which could become ambigous as it
goes to create new commits, and has a mechanism to avoid ambiguity
in the main part of its execution. A few other cases however were
not covered by the protection against ambiguity, which has been
corrected.
* js/rebase-i-with-colliding-hash:
rebase -i: also avoid SHA-1 collisions with missingCommitsCheck
rebase -i: re-fix short SHA-1 collision
parse_insn_line(): improve error message when parsing failed
Running "git rm" on a submodule failed unnecessarily when
.gitmodules is only cache-dirty, which has been corrected.
* dt/submodule-rm-with-stale-cache:
git rm submodule: succeed if .gitmodules index stat info is zero
The "--recurse-submodules" option of various subcommands did not
work well when run in an alternate worktree, which has been
corrected.
* pb/recurse-submodule-in-worktree-fix:
submodule.c: use get_git_dir() instead of get_git_common_dir()
t2405: clarify test descriptions and simplify test
t2405: use git -C and test_commit -C instead of subshells
t7410: rename to t2405-worktree-submodule.sh
An earlier update to show the location of working tree in the error
message did not consider the possibility that a git command may be
run in a bare repository, which has been corrected.
* es/outside-repo-errmsg-hints:
prefix_path: show gitdir if worktree unavailable
prefix_path: show gitdir when arg is outside repo
Minor bugfixes to "git add -i" that has recently been rewritten in C.
* js/builtin-add-i-cmds:
built-in add -i: accept open-ended ranges again
built-in add -i: do not try to `patch`/`diff` an empty list of files
There is a long-standing NEEDSWORK comment that complains about
inconsistency between how an aliased option ("git clone --recurse"
which is the only one that currently exists) gives a help text in
a usage-error message vs "git cmd -h"). Get rid of it and then
make sure we say an option is an alias for another, instead of
repeating the same short help text for both, which leads to "they
seem to do the same---is there any subtle difference?" puzzlement
to end-users.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An earlier update to show the location of working tree in the error
message did not consider the possibility that a git command may be
run in a bare repository, which has been corrected.
* es/outside-repo-errmsg-hints:
prefix_path: show gitdir if worktree unavailable
Check that we get the expected data when performing a merges or
generating archives. Note that we don't expect a ref for merges,
because we won't be checking out any particular ref, but instead a tree
of the merged data. For archives, however, we expect a ref as normal if
we have one.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Pass the commit, and if we have it, the ref to the filters when we
perform a checkout. This should only be the case when we invoke git
reset --hard; the metadata will be unused otherwise.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When checking out a commit, provide metadata to the filter process
including the ref we're using.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Provide commit metadata for checkout code paths that use unpack_trees
and friends. When we're checking out a commit, use the commit
information, but don't provide commit information if we're checking out
from the index, since there need not be any particular commit associated
with the index, and even if there is one, we can't know what it is.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that we have the codebase wired up to pass any additional metadata
to filters, let's collect the additional metadata that we'd like to
pass.
The two main places we pass this metadata are checkouts and archives.
In these two situations, reading HEAD isn't a valid option, since HEAD
isn't updated for checkouts until after the working tree is written and
archives can accept an arbitrary tree. In other situations, HEAD will
usually reflect the refname of the branch in current use.
We pass a smaller amount of data in other cases, such as git cat-file,
where we can really only logically know about the blob.
This commit updates only the parts of the checkout code where we don't
use unpack_trees. That function and callers of it will be handled in a
future commit.
In the archive code, we leak a small amount of memory, since nothing we
pass in the archiver argument structure is freed.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There weren't any tests for unsuccessful signature verification of
signed merge tags shown in 'git log'. There also weren't any tests for
the GPG output from 'git fmt-merge-msg'. This was noticed while
investigating a buggy refactor that slipped through the test suite; see
commit 72b006f4bf.
This commit adds signature verification tests to the 'log' and
'fmt-merge-msg' builtins.
Thanks to Linus Torvalds for reporting and finding the (now reverted)
commit that introduced the regression.
Note that the "log --show-signature for merged tag with GPG failure"
test case is really hacky. It relies on an implementation detail of
verify_signed_buffer() -- namely, it assumes that the signature is
written to a temporary file whose path is under TMPDIR.
The rationale for that test case is to check whether the code path that
yields the "No signature" message is reachable on failure. The
functionality in log-tree.c that may show this message does some
pre-parsing of a possible signature that prevents the GPG interface from
being invoked if a signature is actually missing. And I haven't been
able to construct a signature that both 1. satisfies that
pre-processing, and 2. causes GPG to fail without any sort of output on
stderr along the lines of "this is a bogus/corrupt/... signature" (the
"No signature" message should only be shown if GPG produce no output).
Signed-off-by: Hans Jerry Illikainen <hji@dyntopia.com>
[jc: fixed missing test title noticed by Dscho]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If there is no worktree at present, we can still hint the user about
Git's current directory by showing them the absolute path to the Git
directory. Even though the Git directory doesn't make it as easy to
locate the worktree in question, it can still help a user figure out
what's going on while developing a script.
This fixes a segmentation fault introduced in e0020b2f
("prefix_path: show gitdir when arg is outside repo", 2020-02-14).
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
[jc: added minimum tests, with help from Szeder Gábor]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Several tests wanted to verify that files were actually modified by a
merge, which it would do by checking that the mtime was updated. In
order to avoid problems with the merge completing so fast that the mtime
at the beginning and end of the operation was the same, these tests
would first set the mtime of a file to something "old". This "old"
value was usually determined as current system clock minus one second,
truncated to the nearest integer. Unfortunately, it appears the system
clock and filesystem clock are different and comparing across the two
runs into race problems resulting in flaky tests.
From https://stackoverflow.com/questions/14392975/timestamp-accuracy-on-ext4-sub-millsecond:
date will call the gettimeofday system call which will always return
the most accurate time available based on the cached kernel time,
adjusted by the CPU cycle time if available to give nanosecond
resolution. The timestamps stored in the file system however, are
only based on the cached kernel time. ie The time calculated at the
last timer interrupt.
and from https://apenwarr.ca/log/20181113:
Does mtime get set to >= the current time?
No, this depends on clock granularity. For example, gettimeofday()
can return times in microseconds on my system, but ext4 rounds
timestamps down to the previous ~10ms (but not exactly 10ms)
increment, with the surprising result that a newly-created file is
almost always created in the past:
$ python -c "
import os, time
t0 = time.time()
open('testfile', 'w').close()
print os.stat('testfile').st_mtime - t0
"
-0.00234484672546
So, instead of trying to compare across what are effectively two
different clocks, just avoid using the system clock. Any new updates to
files have to give an mtime at least as big as what is already in the
file, so we could define "old" as one second before the mtime found in
the file before the merge starts. But, to avoid problems with leap
seconds, ntp updates, filesystems that only provide two second
resolution, and other such weirdness, let's just pick an hour before the
mtime found in the file before the merge starts.
Also, clarify in one test where we check the mtime of different files
that it really was intentional. I totally forgot the reasons for that
and assumed it was a bug when asked.
Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Band-aid fixes for two fallouts from switching the default "rebase"
backend.
* en/rebase-backend:
git-rebase.txt: highlight backend differences with commit rewording
sequencer: clear state upon dropping a become-empty commit
i18n: unmark a message in rebase.c
The credential protocol can't handle values with newlines. We already
detect and block any such URLs from being used with credential helpers,
but let's also add an fsck check to detect and block gitmodules files
with such URLs. That will let us notice the problem earlier when
transfer.fsckObjects is turned on. And in particular it will prevent bad
objects from spreading, which may protect downstream users running older
versions of Git.
We'll file this under the existing gitmodulesUrl flag, which covers URLs
with option injection. There's really no need to distinguish the exact
flaw in the URL in this context. Likewise, I've expanded the description
of t7416 to cover all types of bogus URLs.
The credential protocol can't represent newlines in values, but URLs can
embed percent-encoded newlines in various components. A previous commit
taught the low-level writing routines to die() when encountering this,
but we can be a little friendlier to the user by detecting them earlier
and handling them gracefully.
This patch teaches credential_from_url() to notice such components,
issue a warning, and blank the credential (which will generally result
in prompting the user for a username and password). We blank the whole
credential in this case. Another option would be to blank only the
invalid component. However, we're probably better off not feeding a
partially-parsed URL result to a credential helper. We don't know how a
given helper would handle it, so we're better off to err on the side of
matching nothing rather than something unexpected.
The die() call in credential_write() is _probably_ impossible to reach
after this patch. Values should end up in credential structs only by URL
parsing (which is covered here), or by reading credential protocol input
(which by definition cannot read a newline into a value). But we should
definitely keep the low-level check, as it's our final and most accurate
line of defense against protocol injection attacks. Arguably it could
become a BUG(), but it probably doesn't matter much either way.
Note that the public interface of credential_from_url() grows a little
more than we need here. We'll use the extra flexibility in a future
patch to help fsck catch these cases.
The credential tests have a "check" function which feeds some input to
git-credential and checks the stdout and stderr. We look for exact
matches in the output. For stdout, this makes sense; the output is
the credential protocol. But for stderr, we may be showing various
diagnostic messages, or the prompts fed to the askpass program, which
could be translated. Let's mark them as such.
The credential protocol that we use to speak to helpers can't represent
values with newlines in them. This was an intentional design choice to
keep the protocol simple, since none of the values we pass should
generally have newlines.
However, if we _do_ encounter a newline in a value, we blindly transmit
it in credential_write(). Such values may break the protocol syntax, or
worse, inject new valid lines into the protocol stream.
The most likely way for a newline to end up in a credential struct is by
decoding a URL with a percent-encoded newline. However, since the bug
occurs at the moment we write the value to the protocol, we'll catch it
there. That should leave no possibility of accidentally missing a code
path that can trigger the problem.
At this level of the code we have little choice but to die(). However,
since we'd not ever expect to see this case outside of a malicious URL,
that's an acceptable outcome.
Reported-by: Felix Wilhelm <fwilhelm@google.com>
In commit e98c4269c8 ("rebase (interactive-backend): fix handling of
commits that become empty", 2020-02-15), the merge backend was changed
to drop commits that did not start empty but became so after being
applied (because their changes were a subset of what was already
upstream). This new code path did not need to go through the process of
creating a commit, since we were dropping the commit instead.
Unfortunately, this also means we bypassed the clearing of the
CHERRY_PICK_HEAD and MERGE_MSG files, which if there were no further
commits to cherry-pick would mean that the rebase would end but assume
there was still an operation in progress. Ensure that we clear such
state files when we decide to drop the commit.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Often novice Git users forget to say "pull --rebase" and end up with an
unnecessary merge from upstream. What they usually want is either "pull
--rebase" in the simpler cases, or "pull --ff-only" to update the copy
of main integration branches, and rebase their work separately. The
pull.rebase configuration variable exists to help them in the simpler
cases, but there is no mechanism to make these users aware of it.
Issue a warning message when no --[no-]rebase option from the command
line and no pull.rebase configuration variable is given. This will
inconvenience those who never want to "pull --rebase", who haven't had
to do anything special, but the cost of the inconvenience is paid only
once per user, which should be a reasonable cost to help a number of new
users.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Returning a shared buffer invites very subtle bugs due to reentrancy or
multi-threading, as demonstrated by the previous patch.
There was an unfinished effort to abolish this [1].
Let's finally rid of `real_path()`, using `strbuf_realpath()` instead.
This patch uses a local `strbuf` for most places where `real_path()` was
previously called.
However, two places return the value of `real_path()` to the caller. For
them, a `static` local `strbuf` was added, effectively pushing the
problem one level higher:
read_gitfile_gently()
get_superproject_working_tree()
[1] https://lore.kernel.org/git/1480964316-99305-1-git-send-email-bmwill@google.com/
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git show" and others gave an object name in raw format in its
error output, which has been corrected to give it in hex.
* hd/show-one-mergetag-fix:
show_one_mergetag: print non-parent in hex form.
Test cleanup.
* en/test-cleanup:
t6020: new test with interleaved lexicographic ordering of directories
t6022, t6046: test expected behavior instead of testing a proxy for it
t3035: prefer test_must_fail to bash negation for git commands
t6020, t6022, t6035: update merge tests to use test helper functions
t602[1236], t6034: modernize test formatting
Handling of conflicting renames in merge-recursive have further
been made consistent with how existing codepaths try to mimic what
is done to add/add conflicts.
* en/merge-path-collision:
merge-recursive: apply collision handling unification to recursive case
"git am --short-current-patch" is a way to show the piece of e-mail
for the stopped step, which is not suitable to directly feed "git
apply" (it is designed to be a good "git am" input). It learned a
new option to show only the patch part.
* pb/am-show-current-patch:
am: support --show-current-patch=diff to retrieve .git/rebase-apply/patch
am: support --show-current-patch=raw as a synonym for--show-current-patch
am: convert "resume" variable to a struct
parse-options: convert "command mode" to a flag
parse-options: add testcases for OPT_CMDMODE()
We grep for "File exists" in stderr of the failing `git sparse-checkout`
to make sure that it failed for the right reason. We expect the string
to show up there since we call `strerror(errno)` in
`unable_to_lock_message()` in lockfile.c.
On the NonStop platform, this fails because the error string is "File
already exists", which doesn't match our grepping.
See 9042140097 ("test-dir-iterator: do not assume errno values",
2019-07-30) for a somewhat similar fix. There, we patched a test helper,
which meant we had access to `errno` and could investigate it better in
the test helper instead of just outputting the numerical value and
evaluating it in the test script. The current situation is different,
since (short of modifying the lockfile machinery, e.g., to be more
verbose) we don't have more than the output from `strerror()` available.
Except we do: We prefix `strerror(errno)` with `_("Unable to create
'%s.lock': ")`. Let's grep for that part instead. It verifies that we
were indeed unable to create the lock file. (If that fails for some
other reason than the file existing, we really really should expect
other tests to fail as well.)
An alternative fix would be to loosen the expression a bit and grep for
"File.* exists" instead. There would be no guarantee that some other
implementation couldn't come up with another error string, That is, that
could be the first move in an endless game of whack-a-mole. Of course,
it could also take us from "99" to "100" percent of the platforms and
we'd never have this problem again. But since we have another way of
addressing this, let's not even try the "loosen it up a bit" strategy.
Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove the stash.useBuiltin setting which was added as an escape hatch
to disable the builtin version of stash first released with Git 2.22.
Carrying the legacy version is a maintenance burden, and has in fact
become out of date failing a test since the 2.23 release, without
anyone noticing until now. So users would be getting a hint to fall
back to a potentially buggy version of the tool.
We used to shell out to git config to get the useBuiltin configuration
to avoid changing any global state before spawning legacy-stash.
However that is no longer necessary, so just use the 'git_config'
function to get the setting instead.
Similar to what we've done in d03ebd411c ("rebase: remove the
rebase.useBuiltin setting", 2019-03-18), where we remove the
corresponding setting for rebase, we leave the documentation in place,
so people can refer back to it when searching for it online, and so we
can refer to it in the commit message.
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We recently switched to using Perl instead of `sed` in the httpd-based
tests. Let's reflect that in the label we give the corresponding commit
hashes.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Updates to the CI settings.
* js/ci-windows-update:
Azure Pipeline: switch to the latest agent pools
ci: prevent `perforce` from being quarantined
t/lib-httpd: avoid using macOS' sed
"git describe" in a repository with multiple root commits sometimes
gave up looking for the best tag to describe a given commit with
too early, which has been adjusted.
* be/describe-multiroot:
describe: don't abort too early when searching tags
"git clone --recurse-submodules --single-branch" now uses the same
single-branch option when cloning the submodules.
* es/recursive-single-branch-clone:
clone: pass --single-branch during --recurse-submodules
submodule--helper: use C99 named initializer
"git rebase BASE BRANCH" rebased/updated the tip of BRANCH and
checked it out, even when the BRANCH is checked out in a different
worktree. This has been corrected.
* es/do-not-let-rebase-switch-to-protected-branch:
rebase: refuse to switch to branch already checked out elsewhere
t3400: make test clean up after itself
"git push" should stop from updating a branch that is checked out
when receive.denyCurrentBranch configuration is set, but it failed
to pay attention to checkouts in secondary worktrees. This has
been corrected.
* hv/receive-denycurrent-everywhere:
t2402: test worktree path when called in .git directory
receive.denyCurrentBranch: respect all worktrees
t5509: use a bare repository for test push target
get_main_worktree(): allow it to be called in the Git directory
In rare cases "git worktree add <path>" could think that <path>
was already a registered worktree even when it wasn't and refuse
to add the new worktree. This has been corrected.
* es/worktree-avoid-duplication-fix:
worktree: don't allow "add" validation to be fooled by suffix matching
worktree: add utility to find worktree by pathname
worktree: improve find_worktree() documentation
A configuration element used for credential subsystem can now use
wildcard pattern to specify for which set of URLs the entry
applies.
* bc/wildcard-credential:
credential: allow wildcard patterns when matching config
credential: use the last matching username in the config
t0300: add tests for some additional cases
t1300: add test for urlmatch with multiple wildcards
mailmap: add an additional email address for brian m. carlson
"git sparse-checkout" learned a new "add" subcommand.
* ds/sparse-add:
sparse-checkout: allow one-character directories in cone mode
sparse-checkout: work with Windows paths
sparse-checkout: create 'add' subcommand
sparse-checkout: extract pattern update from 'set' subcommand
sparse-checkout: extract add_patterns_from_input()
change the advise call in tag library from advise() to
advise_if_enabled() to construct an example of the usage of
the new API.
Signed-off-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently it's very easy for the advice library's callers to miss
checking the visibility step before printing an advice. Also, it makes
more sense for this step to be handled by the advice library.
Add a new advise_if_enabled function that checks the visibility of
advice messages before printing.
Add a new helper advise_enabled to check the visibility of the advice
if the caller needs to carry out complicated processing based on that
value.
A list of advice_settings is added to cache the config variables names
and values, it's intended to replace advice_config[] and the global
variables once we migrate all the callers to use the new APIs.
Signed-off-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The bug which reports an extra `/.git/.` in worktree path when called in
'.git' directory already has been fixed. But unfortunately, the regression
test to ensure this behavior has been forgotten.
Here is that test.
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Acked-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix for a bug revealed by a recent change to make the protocol v2
the default.
* ds/partial-clone-fixes:
partial-clone: avoid fetching when looking for objects
partial-clone: demonstrate bugs in partial fetch
The merge-recursive machinery failed to refresh the cache entry for
a merge result in a couple of places, resulting in an unnecessary
merge failure, which has been fixed.
* en/t3433-rebase-stat-dirty-failure:
merge-recursive: fix the refresh logic in update_file_flags
t3433: new rebase testcase documenting a stat-dirty-like failure
"git rebase" has learned to use the merge backend (i.e. the
machinery that drives "rebase -i") by default, while allowing
"--apply" option to use the "apply" backend (e.g. the moral
equivalent of "format-patch piped to am"). The rebase.backend
configuration variable can be set to customize.
* en/rebase-backend:
rebase: rename the two primary rebase backends
rebase: change the default backend from "am" to "merge"
rebase: make the backend configurable via config setting
rebase tests: repeat some tests using the merge backend instead of am
rebase tests: mark tests specific to the am-backend with --am
rebase: drop '-i' from the reflog for interactive-based rebases
git-prompt: change the prompt for interactive-based rebases
rebase: add an --am option
rebase: move incompatibility checks between backend options a bit earlier
git-rebase.txt: add more details about behavioral differences of backends
rebase: allow more types of rebases to fast-forward
t3432: make these tests work with either am or merge backends
rebase: fix handling of restrict_revision
rebase: make sure to pass along the quiet flag to the sequencer
rebase, sequencer: remove the broken GIT_QUIET handling
t3406: simplify an already simple test
rebase (interactive-backend): fix handling of commits that become empty
rebase (interactive-backend): make --keep-empty the default
t3404: directly test the behavior of interest
git-rebase.txt: update description of --allow-empty-message
"git check-ignore" did not work when the given path is explicitly
marked as not ignored with a negative entry in the .gitignore file.
* en/check-ignore:
check-ignore: fix documentation and implementation to match
The object reachability bitmap machinery and the partial cloning
machinery were not prepared to work well together, because some
object-filtering criteria that partial clones use inherently rely
on object traversal, but the bitmap machinery is an optimization
to bypass that object traversal. There however are some cases
where they can work together, and they were taught about them.
* jk/object-filter-with-bitmap:
rev-list --count: comment on the use of count_right++
pack-objects: support filters with bitmaps
pack-bitmap: implement BLOB_LIMIT filtering
pack-bitmap: implement BLOB_NONE filtering
bitmap: add bitmap_unset() function
rev-list: use bitmap filters for traversal
pack-bitmap: basic noop bitmap filter infrastructure
rev-list: allow commit-only bitmap traversals
t5310: factor out bitmap traversal comparison
rev-list: allow bitmaps when counting objects
rev-list: make --count work with --objects
rev-list: factor out bitmap-optimized routines
pack-bitmap: refuse to do a bitmap traversal with pathspecs
rev-list: fallback to non-bitmap traversal when filtering
pack-bitmap: fix leak of haves/wants object lists
pack-bitmap: factor out type iterator initialization
When a mergetag names a non-parent, which can occur after a shallow
clone, its hash was previously printed as raw data. Print it in hex form
instead.
Signed-off-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When converting a repository using submodules from one hash algorithm to
another, it is necessary to rewrite the submodules from the old
algorithm to the new algorithm, since only references to submodules, not
their contents, are written to the fast-export stream. Without rewriting
the submodules, fast-import fails with an "Invalid dataref" error when
encountering a submodule in another algorithm.
Add a pair of options, --rewrite-submodules-from and
--rewrite-submodules-to, that take a list of marks produced by
fast-export and fast-import, respectively, when processing the
submodule. Use these marks to map the submodule commits from the old
algorithm to the new algorithm.
We read marks into two corresponding struct mark_set objects and then
perform a mapping from the old to the new using a hash table. This lets
us reuse the same mark parsing code that is used elsewhere and allows us
to efficiently read and match marks based on their ID, since mark files
need not be sorted.
Note that because we're using a khash table for the object IDs, and this
table copies values of struct object_id instead of taking references to
them, it's necessary to zero the struct object_id values that we use to
insert and look up in the table. Otherwise, we would end up with SHA-1
values that don't match because of whatever stack garbage might be left
in the unused area.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a repository has two files:
foo/bar/baz
foo/bar-2/baz
then a simple lexicographic ordering of files and directories shows
...
foo/bar
foo/bar-2
foo/bar/baz
...
and the appearance of foo/bar-2 between foo/bar and foo/bar/baz can trip
up some codepaths. Add a test to catch such cases.
t6020 might be a slight misfit since this testcase does not test any
kind of file/directory conflict. However, it is similar in spirit to
some tests (4-6) already in t6020 that check cases where a *file* sorted
between a directory and the files underneath that directory. This
testcase differs in that now there is a *directory* that sorts in the
middle.
Although merge-recursive currently has no problems with this simple
testcase, I discovered that it's very possible to accidentally mess it
up. Further, we have no other merge or cherry-pick or rebase testcases
in the entire testsuite that cover such a case, so I felt like it would
be a worthwhile addition to the testsuite.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In t6022, we were testing for file being overwritten (or not) based on
an output message instead of checking for the file being overwritten.
Since we can check for the file being overwritten via mtime updates,
check that instead.
In t6046, we were largely checking for both the expected behavior and a
proxy for it, which is unnecessary. The calls to test-tool also were a
bit cryptic. Make them a little clearer.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make use of test_path_is_file, test_write_lines, and similar helpers
in these old test files.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Indent code, and include it inside test_expect* blocks.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the en/merge-path-collision topic (see commit ac193e0e0a, "Merge
branch 'en/merge-path-collision'", 2019-01-04), all the "file collision"
conflict types were modified for consistency. In particular,
rename/add, rename/rename(2to1) and each rename/add piece of a
rename/rename(1to2)/add[/add] conflict were made to behave like add/add
conflicts have always been handled.
However, this consistency was not enforced when opt->priv->call_depth >
0 for rename/rename conflicts. Update rename/rename(1to2) and
rename/rename(2to1) conflicts in the recursive case to also be
consistent. As an added bonus, this simplifies the code considerably.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Among other differences relative to GNU sed, macOS' sed always ends its
output with a trailing newline, even if the input did not have such a
trailing newline.
Surprisingly, this makes three httpd-based tests fail on macOS: t5616,
t5702 and t5703. ("Surprisingly" because those tests have been around
for some time, but apparently nobody runs them on macOS with a working
Apache2 setup.)
The reason is that we use `sed` in those tests to filter the response of
the web server. Apart from the fact that we use GNU constructs (such as
using a space after the `c` command instead of a backslash and a
newline), we have another problem: macOS' sed LF-only newlines while
webservers are supposed to use CR/LF ones.
Even worse, t5616 uses `sed` to replace a binary part of the response
with a new binary part (kind of hoping that the replaced binary part
does not contain a 0x0a byte which would be interpreted as a newline).
To that end, it calls on Perl to read the binary pack file and
hex-encode it, then calls on `sed` to prefix every hex digit pair with a
`\x` in order to construct the text that the `c` statement of the `sed`
invocation is supposed to insert. So we call Perl and sed to construct a
sed statement. The final nail in the coffin is that macOS' sed does not
even interpret those `\x<hex>` constructs.
Let's just replace all of that by Perl snippets. With Perl, at least, we
do not have to deal with GNU vs macOS semantics, we do not have to worry
about unwanted trailing newlines, and we do not have to spawn commands
to construct arguments for other commands to be spawned (i.e. we can
avoid a whole lot of shell scripting complexity).
The upshot is that this fixes t5616, t5702 and t5703 on macOS with
Apache2.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When searching the commit graph for tag candidates, `git-describe`
will stop as soon as there is only one active branch left and
it already found an annotated tag as a candidate.
This works well as long as all branches eventually connect back
to a common root, but if the tags are found across branches
with no common ancestor
B
o----.
\
o-----o---o----x
A
it can happen that the search on one branch terminates prematurely
because a tag was found on another, independent branch. This scenario
isn't quite as obscure as it sounds, since cloning with a limited
depth often introduces many independent "dead ends" into the commit
graph.
The help text of `git-describe` states pretty clearly that when
describing a commit D, the number appended to the emitted tag X should
correspond to the number of commits found by `git log X..D`.
Thus, this commit modifies the stopping condition to only abort
the search when only one branch is left to search *and* all current
best candidates are descendants from that branch.
For repositories with a single root, this condition is always
true: When the search is reduced to a single active branch, the
current commit must be an ancestor of *all* tag candidates. This
means that in the common case, this change will have no negative
performance impact since the same number of commits as before will
be traversed.
Signed-off-by: Benno Evers <benno@bmevers.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git remote rename X Y" needs to adjust configuration variables
(e.g. branch.<name>.remote) whose value used to be X to Y.
branch.<name>.pushRemote is now also updated.
* bw/remote-rename-update-config:
remote rename/remove: gently handle remote.pushDefault config
config: provide access to the current line number
remote rename/remove: handle branch.<name>.pushRemote config values
remote: clean-up config callback
remote: clean-up by returning early to avoid one indentation
pull --rebase/remote rename: document and honor single-letter abbreviations rebase types
Previously, performing "git clone --recurse-submodules --single-branch"
resulted in submodules cloning all branches even though the superproject
cloned only one branch. Pipe --single-branch through the submodule
helper framework to make it to 'clone' later on.
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Log graph comparision logic is duplicated many times in:
- t3430-rebase-merges.sh
- t4202-log.sh
- t4214-log-graph-octopus.sh
- t4215-log-skewed-merges.sh
Consolidate the core of the comparision and sanitization logic in
lib-log-graph, and use it to replace the existing tests.
While at it, lose the singular/plural transition magic from the
sanitize_output helper, which was necessary around 7f814632 ("Use
correct grammar in diffstat summary line", 2012-02-01), that has
long outlived its usefulness.
Signed-off-by: Abhishek Kumar <abhishekkumar8222@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git worktree add <path>" performs various checks before approving
<path> as a valid location for the new worktree. Aside from ensuring
that <path> does not already exist, one of the questions it asks is
whether <path> is already a registered worktree. To perform this check,
it queries find_worktree() and disallows the "add" operation if
find_worktree() finds a match for <path>. As a convenience, however,
find_worktree() casts an overly wide net to allow users to identify
worktrees by shorthand in order to keep typing to a minimum. For
instance, it performs suffix matching which, given subtrees "foo/bar"
and "foo/baz", can correctly select the latter when asked only for
"baz".
"add" validation knows the exact path it is interrogating, so this sort
of heuristic-based matching is, at best, questionable for this use-case
and, at worst, may may accidentally interpret <path> as matching an
existing worktree and incorrectly report it as already registered even
when it isn't. (In fact, validate_worktree_add() already contains a
special case to avoid accidentally matching against the main worktree,
precisely due to this problem.)
Avoid the problem of potential accidental matching against an existing
worktree by instead taking advantage of find_worktree_by_path() which
matches paths deterministically, without applying any sort of magic
shorthand matching performed by find_worktree().
Reported-by: Cameron Gunnin <cameron.gunnin@synopsys.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The invocation "git rebase <upstream> <branch>" switches to <branch>
before performing the rebase operation. However, unlike git-switch,
git-checkout, and git-worktree which all refuse to switch to a branch
that is already checked out in some other worktree, git-rebase switches
to <branch> unconditionally. Curb this careless behavior by making
git-rebase also refuse to switch to a branch checked out elsewhere.
Reported-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This test intentionally creates a file which causes rebase to fail, thus
it is important that this file be deleted before subsequent tests are
run which are not expecting such a failure. In the past, the common way
to ensure cleanup (regardless of whether the test succeeded or failed)
was either for the next test to perform the previous test's cleanup as
its first step or to do the cleanup at global scope outside of any
tests. With the introduction of 'test_when_finished', however, tests can
be responsible for their own cleanup. Therefore, update this test to
clean up after itself.
A bit of history: This 'rm' invocation was moved from within the body of
the following test to global scope by bffd750adf (rebase: improve error
message when upstream argument is missing, 2010-05-31), which postdates,
by about a month, introduction of 'test_when_finished' in 3bf7886705
(test-lib: Let tests specify commands to be run at end of test,
2010-05-02).
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We `cat` files, but don't inspect or grab the contents in any way.
Unlike in an earlier commit, there is no reason to suspect that these
files could be missing, so `cat`-ing them is just wasted effort.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We `cat` kwdelfile.c, but don't inspect or grab the contents in any way.
This looks like a remnant from a debug session. Similar to the previous
commit, one could argue that `cat`-ing the file verifies that it didn't
disappear somehow. But because the very next thing we do after `cat`-ing
the file is to `grep` in it, we can safely drop the call to `cat`.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We `cat` files, but don't inspect or grab the contents in any way. These
`cat` calls look like remnants from a debug session, so it's tempting to
get rid of them. But they do actually verify that the files exist, which
might not necessarily be the case for some failure modes of `git apply
--reject`. Let's not lose that.
Convert the `cat` calls to use `test_path_is_file` instead. This is of
course still a minor change since we no longer verify that the files can
be opened for reading, but that is not something we usually worry about.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The receive.denyCurrentBranch config option controls what happens if
you push to a branch that is checked out into a non-bare repository.
By default, it rejects it. It can be disabled via `ignore` or `warn`.
Another yet trickier option is `updateInstead`.
However, this setting was forgotten when the git worktree command was
introduced: only the main worktree's current branch is respected.
With this change, all worktrees are respected.
That change also leads to revealing another bug,
i.e. `receive.denyCurrentBranch = true` was ignored when pushing into a
non-bare repository's unborn current branch using ref namespaces. As
`is_ref_checked_out()` returns 0 which means `receive-pack` does not get
into conditional statement to switch `deny_current_branch` accordingly
(ignore, warn, refuse, unconfigured, updateInstead).
receive.denyCurrentBranch uses the function `refs_resolve_ref_unsafe()`
(called via `resolve_refdup()`) to resolve the symbolic ref HEAD, but
that function fails when HEAD does not point at a valid commit.
As we replace the call to `refs_resolve_ref_unsafe()` with
`find_shared_symref()`, which has no problem finding the worktree for a
given branch even if it is unborn yet, this bug is fixed at the same
time: receive.denyCurrentBranch now also handles worktrees with unborn
branches as intended even while using ref namespaces.
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`receive.denyCurrentBranch` currently has a bug where it allows pushing
into non-bare repository using namespaces as long as it does not have any
commits. This would cause t5509 to fail once that bug is fixed because it
pushes into an unborn current branch.
In t5509, no operations are performed inside `pushee`, as it is only a
target for `git push` and `git ls-remote` calls. Therefore it does not
need to have a worktree. So, it is safe to change `pushee` to a bare
repository.
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The transition plan anticipates that we will allow signatures using
multiple algorithms in a single commit. In order to do so, we need to
use a different header per algorithm so that it will be obvious over
which data to compute the signature.
The transition plan specifies that we should use "gpgsig-sha256", so
wire up the commit code such that it can write and parse the current
algorithm, and it can remove the headers for any algorithm when creating
a new commit. Add tests to ensure that we write using the right header
and that git fsck doesn't reject these commits.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This test currently hard-codes the hash algorithm as SHA-1 when calling
repo_set_hash_algo so that the_hash_algo is properly initialized.
However, this does not work with SHA-256 repositories. Read the
repository value that repo_init has read into the local repository
variable and set the algorithm based on that value.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The repository helper is used in t5318 to read commit graphs whether
we're in a repository or not. However, without a repository, we have no
way to properly initialize the hash algorithm, meaning that the file is
misread.
Fix this by calling setup_git_directory_gently, which will read the
environment variable the testsuite sets to ensure that the correct hash
algorithm is set.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In this test helper, we read the index. In order to have the proper
hash algorithm set up, we must call setup_git_directory. Do so, so that
the test works when extensions.objectFormat is set.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
One of the git for-each-ref tests asks to sort by object ID. However,
when sorted, the order of the refs differs between SHA-1 and SHA-256.
Sort the expected output so that the test passes.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the future, we'll allow developers to run the testsuite with a hash
algorithm of their choice. To make this easier, compute the fixed
constants using test_oid. Move the constant initialization down below
the point where test-lib-functions.sh is loaded so the functions are
defined.
Note that we don't provide a value for the OID_REGEX value directly
because writing a large number of instances of "[0-9a-f]" in the
oid-info files is unwieldy and there isn't a way to compute it based on
those values. Instead, compute it based on ZERO_OID.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We can check if certain characters are present in a string by calling
strchr(3) on each of them, or we can pass them all to a single
strpbrk(3) call. The latter is shorter, less repetitive and slightly
more efficient, so let's do that instead.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use test_path_is_file() instead of 'test -f' for better debugging
information.
Signed-off-by: Rasmus Jonsson <wasmus@zom.bi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When using partial clone, find_non_local_tags() in builtin/fetch.c
checks each remote tag to see if its object also exists locally. There
is no expectation that the object exist locally, but this function
nevertheless triggers a lazy fetch if the object does not exist. This
can be extremely expensive when asking for a commit, as we are
completely removed from the context of the non-existent object and
thus supply no "haves" in the request.
6462d5eb9a (fetch: remove fetch_if_missing=0, 2019-11-05) removed a
global variable that prevented these fetches in favor of a bitflag.
However, some object existence checks were not updated to use this flag.
Update find_non_local_tags() to use OBJECT_INFO_SKIP_FETCH_OBJECT in
addition to OBJECT_INFO_QUICK. The _QUICK option only prevents
repreparing the pack-file structures. We need to be extremely careful
about supplying _SKIP_FETCH_OBJECT when we expect an object to not exist
due to updated refs.
This resolves a broken test in t5616-partial-clone.sh.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
While testing partial clone, I noticed some odd behavior. I was testing
a way of running 'git init', followed by manually configuring the remote
for partial clone, and then running 'git fetch'. Astonishingly, I saw
the 'git fetch' process start asking the server for multiple rounds of
pack-file downloads! When tweaking the situation a little more, I
discovered that I could cause the remote to hang up with an error.
Add two tests that demonstrate these two issues.
In the first test, we find that when fetching with blob filters from
a repository that previously did not have any tags, the 'git fetch
--tags origin' command fails because the server sends "multiple
filter-specs cannot be combined". This only happens when using
protocol v2.
In the second test, we see that a 'git fetch origin' request with
several ref updates results in multiple pack-file downloads. This must
be due to Git trying to fault-in the objects pointed by the refs. What
makes this matter particularly nasty is that this goes through the
do_oid_object_info_extended() method, so there are no "haves" in the
negotiation. This leads the remote to send every reachable commit and
tree from each new ref, providing a quadratic amount of data transfer!
This test is fixed if we revert 6462d5eb9a (fetch: remove
fetch_if_missing=0, 2019-11-05), but that revert causes other test
failures. The real fix will need more care.
The tests are ordered in this way because if I swap the test order the
tag test will succeed instead of fail. I believe this is because somehow
we need the srv.bare repo to not have any tags when we clone, but then
have tags in our next fetch.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An annotated tag has two names: where it sits in the refs/tags
hierarchy and the tagname recorded in the "tag" field in the object
itself. They usually should match.
Since 212945d4 ("Teach git-describe to verify annotated tag names
before output", 2008-02-28), a commit described using an annotated
tag bases its name on the tagname from the object. While this was a
deliberate design decision to make it easier to converse about tags
with others, even if the tags happen to be fetched to a different
name than it was given by its creator, it had one downside.
The output from "git describe", at least in the modern Git, should
be usable as an object name to name the exact commit given to the
"git describe" command. Using the tagname, when two names differ,
breaks this property, when describing a commit that is directly
pointed at by such a tag. An annotated tag Bob made as "v1.0" may
sit at "refs/tags/v1.0-bob" in the ref hierarchy, and output from
"git describe v1.0-bob^0" would say "v1.0", but there may not be
any tag at "refs/tags/v1.0" locally or there may be another tag that
points at a different object.
Note that this won't be a problem if a commit being described is not
directly pointed at by such a mislocated tag. In the example in the
previous paragraph, describing a commit whose parent is v1.0-bob
would result in "v1.0" (i.e. the tagname taken from the tag object)
followed by "-1-gXXXXX" where XXXXX is the abbreviated object name,
and a string that ends with "-g" followed by a hexadecimal string is
an object name for the object whose name begins with hexadecimal
string (as long as it is unique), so it does not matter if the
leading part is "v1.0" or "v1.0-bob".
Show the name in the long format, i.e. with "-0-gXXXXX" suffix, when
the name we give is based on a mislocated annotated tag to ensure
that the output can be used as the object name for the object
originally given to the command to fix the issue.
While at it, remove an overly cautious dead code to protect against
an annotated tag object without the tagname. Such a tag is filtered
out much earlier in the codeflow, and will not reach this part of
the code.
Helped-by: Matheus Tavares <matheus.bernardino@usp.br>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 9e6d3e64 (sparse-checkout: detect short patterns, 2020-01-24), a
condition on the minimum length of a cone-mode pattern was introduced.
However, this condition was off-by-one.
If we have a directory with a single character, say "b", then the
command
git sparse-checkout set b
will correctly add the pattern "/b/" to the sparse-checkout file. When
this is interpeted in dir.c, the pattern is "/b" with the
PATTERN_FLAG_MUSTBEDIR flag. This string has length two, which satisfies
our inclusive inequality (<= 2).
The reason for this inequality is that we will start to read the pattern
string character-by-character using three char pointers: prev, cur,
next. In particular, next is set to the current pattern plus two. The
mistake was that next will still be a valid pointer when the pattern
length is two, since the string is null-terminated.
Make this inequality strict so these patterns work.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When "git am --show-current-patch" was added in commit 984913a210 ("am:
add --show-current-patch", 2018-02-12), "git am" started recommending it
as a replacement for .git/rebase-merge/patch. Unfortunately the suggestion
is somewhat misguided; for example, the output of "git am --show-current-patch"
cannot be passed to "git apply" if it is encoded as quoted-printable
or base64. Add a new mode to "git am --show-current-patch" in order to
straighten the suggestion.
Reported-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When "git am --show-current-patch" was added in commit 984913a210 ("am:
add --show-current-patch", 2018-02-12), "git am" started recommending it
as a replacement for .git/rebase-merge/patch. Unfortunately the suggestion
is somewhat misguided; for example, the output "git am --show-current-patch"
cannot be passed to "git apply" if it is encoded as quoted-printable or
base64. To simplify worktree operations and to avoid that users poke into
.git, it would be better if "git am" also provided a mode that copies
.git/rebase-merge/patch to stdout.
One possibility could be to have completely separate options, introducing
for example --show-current-message (for .git/rebase-apply/NNNN)
and --show-current-diff (for .git/rebase-apply/patch), while possibly
deprecating --show-current-patch.
That would even remove the need for the first two patches in the series.
However, the long common prefix would have prevented using an abbreviated
option such as "--show". Therefore, I chose instead to add a string
argument to --show-current-patch. The new argument is optional, so that
"git am --show-current-patch"'s behavior remains backwards-compatible.
The next choice to make is how to handle multiple --show-current-patch
options. Right now, something like "git am --abort --show-current-patch"
is rejected, and the previous suggestion would likewise have naturally
rejected a command line like
git am --show-current-message --show-current-diff
Therefore, I decided to also reject for example
git am --show-current-patch=diff --show-current-patch=raw
In other words the whole of --show-current-patch=xxx (including the
optional argument) is treated as the command mode. I found this to be
more consistent and intuitive, even though it differs from the usual
"last one wins" semantics of the git command line.
Add the code to parse submodes based on the above design, where for now
"raw" is the only valid submode. "raw" prints the full e-mail message
just like "git am --show-current-patch".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before modifying the implementation, ensure that general operation of
OPT_CMDMODE() and detection of incompatible options are covered.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In some cases, a user will want to use a specific credential helper for
a wildcard pattern, such as https://*.corp.example.com. We have code
that handles this already with the urlmatch code, so let's use that
instead of our custom code.
Since the urlmatch code is a superset of our current matching in terms
of capabilities, there shouldn't be any cases of things that matched
previously that don't match now. However, in addition to wildcard
matching, we now use partial path matching, which can cause slightly
different behavior in the case that a helper applies to the prefix
(considering path components) of the remote URL. While different, this
is probably the behavior people were wanting anyway.
Since we're using the urlmatch code, we need to encode the components
we've gotten into a URL to match, so add a function to percent-encode
data and format the URL with it. We now also no longer need to the
custom code to match URLs, so let's remove it.
Additionally, the urlmatch code always looks for the best match, whereas
we want all matches for credential helpers to preserve existing
behavior. Let's add an optional field, select_fn, that lets us control
which items we want (in this case, all of them) and default it to the
best-match code that already exists for other users.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Everywhere else in the codebase, we use the rule that the last matching
configuration option is the one that takes effect. This is helpful
because it allows more specific configuration settings (e.g., per-repo
configuration) to override less specific settings (e.g., per-user
configuration).
However, in the credential code, we didn't honor this setting, and
instead picked the first setting we had, and stuck with it. This was
likely to ensure we picked the value from the URL, which we want to
honor over the configuration.
It's possible to do both, though, so let's check if the value is the one
we've gotten over our protocol connection, which if present will have
come from the URL, and keep it if so. Otherwise, let's overwrite the
value with the latest version we've got from the configuration, so we
keep the last configuration value.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are some tricky cases in our credential helpers that we don't have
test cases for. To help prevent regressions, let's add some for these
cases:
* If there are multiple configured credential helpers, one without a
path and one with a path, we want to invoke both of them.
* If there are percent-encoded values in the URL, we handle them
properly.
* And finally, if there is a username in the remote URL, we want to
honor that over what the configuration tells us.
Finally, there's an additional case that we'd like to test for as well,
but that currently fails. In all other situations in our configuration,
we pick the last configuration setting that's provided. However, we
fail to do that for credential.username, where we pick the first setting
instead. Let's add a failing test that we have the consistent behavior
here, since that's the documented, expected behavior.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Our urlmatch code handles multiple wildcards, but we don't currently
have a test that checks this code path. Add a test that we handle this
case correctly to avoid any regressions.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous commit fixed a bug with the (no submodule) -> (nested
submodules) transition for commands in the unpack-trees machinery.
Let's add a test for the reverse transition (going from nested
submodules to no submodule), as it is not being tested currently.
While at it, uniformize the capitalization in the list of tests.
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using `git checkout --recurse-submodules` to switch between a
branch with no submodules and a branch with initialized nested
submodules currently causes a fatal error:
$ git checkout --recurse-submodules branch-with-nested-submodules
fatal: exec '--super-prefix=submodule/nested/': cd to 'nested'
failed: No such file or directory
error: Submodule 'nested' could not be updated.
error: Submodule 'submodule/nested' cannot checkout new HEAD.
error: Submodule 'submodule' could not be updated.
M submodule
Switched to branch 'branch-with-nested-submodules'
The checkout succeeds but the worktree and index of the first level
submodule are left empty:
$ cd submodule
$ git -c status.submoduleSummary=1 status
HEAD detached at b3ce885
Changes to be committed:
(use "git restore --staged <file>..." to unstage)
deleted: .gitmodules
deleted: first.t
deleted: nested
fatal: not a git repository: 'nested/.git'
Submodule changes to be committed:
* nested 1e96f59...0000000:
$ git ls-files -s
$ # empty
$ ls -A
.git
The reason for the fatal error during the checkout is that a child git
process tries to cd into the yet unexisting nested submodule directory.
The sequence is the following:
1. The main git process (the one running in the superproject) eventually
reaches write_entry() in entry.c, which creates the first level
submodule directory and then calls submodule_move_head() in submodule.c,
which spawns `git read-tree` in the submodule directory.
2. The first child git process (the one in the submodule of the
superproject) eventually calls check_submodule_move_head() at
unpack_trees.c:2021, which calls submodule_move_head in dry-run mode,
which spawns `git read-tree` in the nested submodule directory.
3. The second child git process tries to chdir() in the yet unexisting
nested submodule directory in start_command() at run-command.c:829 and
dies before exec'ing.
The reason why check_submodule_move_head() is reached in the first child
and not in the main process is that it is inside an
if(submodule_from_ce()) construct, and submodule_from_ce() returns a
valid struct submodule pointer, whereas it returns a null pointer in the
main git process.
The reason why submodule_from_ce() returns a null pointer in the main
git process is because the call to cache_lookup_path() in config_from()
(called from submodule_from_path() in submodule_from_ce()) returns a
null pointer since the hashmap "for_path" in the submodule_cache of
the_repository is not yet populated. It is not populated because both
repo_get_oid(repo, GITMODULES_INDEX, &oid) and repo_get_oid(repo,
GITMODULES_HEAD, &oid) in config_from_gitmodules() at
submodule-config.c:639-640 return -1, as at this stage of the operation,
neither the HEAD of the superproject nor its index contain any
.gitmodules file.
In contrast, in the first child the hashmap is populated because
repo_get_oid(repo, GITMODULES_HEAD, &oid) returns 0 as the HEAD of the
first level submodule, i.e. .git/modules/submodule/HEAD, points to a
commit where .gitmodules is present and records 'nested' as a submodule.
Fix this bug by checking that the submodule directory exists before
calling check_submodule_move_head() in merged_entry() in the `if(!old)`
branch, i.e. if going from a commit with no submodule to a commit with a
submodule present.
Also protect the other call to check_submodule_move_head() in
merged_entry() the same way as it is safer, even though the `else if
(!(old->ce_flags & CE_CONFLICTED))` branch of the code is not at play in
the present bug.
The other calls to check_submodule_move_head() in other functions in
unpack_trees.c are all already protected by calls to lstat() somewhere
in
the program flow so we don't need additional protection for them.
All commands in the unpack_trees machinery are affected, i.e. checkout,
reset and read-tree when called with the --recurse-submodules flag.
This bug was first reported in [1].
[1]
https://lore.kernel.org/git/7437BB59-4605-48EC-B05E-E2BDB2D9DABC@gmail.com/
Reported-by: Philippe Blain <levraiphilippeblain@gmail.com>
Reported-by: Damien Robert <damien.olivier.robert@gmail.com>
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test "$command: submodule branch is not changed, detach HEAD
instead" is in the "Appearing submodule" section of
test_submodule_recursing_with_args_common(), but this test updates a
submodule; it does not test a transition from a state with no submodule
to a state with a submodule.
As such, for consistency, move it to the "Modified submodule" section of
the same function. While at it, add a comment describing the test.
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The commands in the unpack_trees machinery (checkout, reset, read-tree)
were fixed in 218c883783 (submodule: properly recurse for read-tree and
checkout, 2017-05-02) to correctly update nested submodules when called
with the `--recurse-submodules` flag.
However, a comment in t/lib-submodule-update.sh mentions that this use
case still doesn't work.
Remove this outdated comment.
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The known failure mode KNOWN_FAILURE_SUBMODULE_RECURSIVE_NESTED was
removed from lib-submodule-update.sh in 218c883783 (submodule: properly
recurse for read-tree and checkout, 2017-05-02) but at that time this
change was not ported over to topic sb/reset-recurse-submodules, such
that when this topic was merged in 5f074ca7e8 (Merge branch
'sb/reset-recurse-submodules', 2017-05-29), t7112-reset-submodules.sh
kept a mention of this removed failure mode.
Remove it now, as it does not mean anything anymore.
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Decisions taken for simplicity:
1) For now, `--pathspec-from-file` is declared incompatible with
`--patch`, even when <file> is not `-`. Such use case is not
really expected.
2) It is not allowed to pass pathspec in both args and file.
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Eliminate crude option parsing and rely on real parsing instead, because
1) Crude parsing is crude, for example it's not capable of
handling things like `git stash -m Message`
2) Adding options in two places is inconvenient and prone to bugs
As a side result, the case of `git stash -m Message` gets fixed.
Also give a good error message instead of just throwing usage at user.
----
Some review of what's been happening to this code:
Before [1], `git-stash.sh` only verified that all args begin with `-` :
# The default command is "push" if nothing but options are given
seen_non_option=
for opt
do
case "$opt" in
--) break ;;
-*) ;;
*) seen_non_option=t; break ;;
esac
done
Later, [1] introduced the duplicate code I'm now removing, also making
the previous test more strict by white-listing options.
----
[1] Commit 40af1468 ("stash: convert `stash--helper.c` into `stash.c`" 2019-02-26)
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Decisions taken for simplicity:
1) It is not allowed to pass pathspec in both args and file.
Adjustments were needed for `if (!argc)` block:
This code actually means "pathspec is not present". Previously, pathspec
could only come from commandline arguments, so testing for `argc` was a
valid way of testing for the presence of pathspec. But this is no longer
true with `--pathspec-from-file`.
During the entire `--pathspec-from-file` story, I tried to keep its
behavior very close to giving pathspec on commandline, so that switching
from one to another doesn't involve any surprises.
However, throwing usage at user in the case of empty
`--pathspec-from-file` would puzzle because there's nothing wrong with
"usage" (that is, argc/argv array).
On the other hand, throwing usage in the old case also feels bad to me.
While it's less of a puzzle, I (as user) never liked the experience of
comparing my commandline to "usage", trying to spot a difference. Since
it's already known what the error is, it feels a lot better to give that
specific error to user.
Judging from [1] it doesn't seem that showing usage in this case was
important (the patch was to avoid segfault), and it doesn't fit into how
other commands react to empty pathspec (see for example `git add` with a
custom message).
Therefore, I decided to show new error text in both cases. In order to
continue testing for error early, I moved `parse_pathspec()` higher. Now
it happens before `read_cache()` / `hold_locked_index()` /
`setup_work_tree()`, which shouldn't cause any issues.
[1] Commit 7612a1ef ("git-rm: honor -n flag" 2006-06-09)
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we need to delete a higher stage entry in the index to place the file
at stage 0, then we'll lose that file's stat information. In such
situations we may still be able to detect that the file on disk is the
version we want (as noted by our comment in the code:
/* do not overwrite file if already present */
), but we do still need to update the mtime since we are creating a new
cache_entry for that file. Update the logic used to determine whether
we refresh a file's mtime.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A user discovered a case where they had a stack of 20 simple commits to
rebase, and the rebase would succeed in picking the first commit and
then error out with a pair of "Could not execute the todo command" and
"Your local changes to the following files would be overwritten by
merge" messages.
Their steps actually made use of the -i flag, but I switched it over to
-m to make it simpler to trigger the bug. With that flag, it bisects
back to commit 68aa495b59 (rebase: implement --merge via the
interactive machinery, 2018-12-11), but that's misleading. If you
change the -m flag to --keep-empty, then the problem persists and will
bisect back to 356ee4659b (sequencer: try to commit without forking
'git commit', 2017-11-24)
After playing with the testcase for a bit, I discovered that added
--exec "sleep 1" to the command line makes the rebase succeed, making me
suspect there is some kind of discard and reloading of caches that lead
us to believe that something is stat dirty, but I didn't succeed in
digging any further than that.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
check-ignore has two different modes, and neither of these modes has an
implementation that matches the documentation. These modes differ in
whether they just print paths or whether they also print the final
pattern matched by the path. The fix is different for both modes, so
I'll discuss both separately.
=== First (default) mode ===
The first mode is documented as:
For each pathname given via the command-line or from a file via
--stdin, check whether the file is excluded by .gitignore (or other
input files to the exclude mechanism) and output the path if it is
excluded.
However, it fails to do this because it did not account for negated
patterns. Commands other than check-ignore verify exclusion rules via
calling
... -> treat_one_path() -> is_excluded() -> last_matching_pattern()
while check-ignore has a call path of the form:
... -> check_ignore() -> last_matching_pattern()
The fact that the latter does not include the call to is_excluded()
means that it is susceptible to to messing up negated patterns (since
that is the only significant thing is_excluded() adds over
last_matching_pattern()). Unfortunately, we can't make it just call
is_excluded(), because the same codepath is used by the verbose mode
which needs to know the matched pattern in question. This brings us
to...
=== Second (verbose) mode ===
The second mode, known as verbose mode, references the first in the
documentation and says:
Also output details about the matching pattern (if any) for each
given pathname. For precedence rules within and between exclude
sources, see gitignore(5).
The "Also" means it will print patterns that match the exclude rules as
noted for the first mode, and also print which pattern matches. Unless
more information is printed than just pathname and pattern (which is not
done), this definition is somewhat ill-defined and perhaps even
self-contradictory for negated patterns: A path which matches a negated
exclude pattern is NOT excluded and thus shouldn't be printed by the
former logic, while it certainly does match one of the explicit patterns
and thus should be printed by the latter logic.
=== Resolution ==
Since the second mode exists to find out which pattern matches given
paths, and showing the user a pattern that begins with a '!' is
sufficient for them to figure out whether the pattern is excluded, the
existing behavior is desirable -- we just need to update the
documentation to match the implementation (i.e. it is about printing
which pattern is matched by paths, not about showing which paths are
excluded).
For the first or default mode, users just want to know whether a pattern
is excluded. As such, the existing documentation is desirable; change
the implementation to match the documented behavior.
Finally, also adjust a few tests in t0008 that were caught up by this
discrepancy in how negated paths were handled.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Code clean-up.
* jk/mailinfo-cleanup:
mailinfo: factor out some repeated header handling
mailinfo: be more liberal with header whitespace
mailinfo: simplify parsing of header values
mailinfo: treat header values as C strings
"git config" learned to show in which "scope", in addition to in
which file, each config setting comes from.
* mr/show-config-scope:
config: add '--show-scope' to print the scope of a config value
submodule-config: add subomdule config scope
config: teach git_config_source to remember its scope
config: preserve scope in do_git_config_sequence
config: clarify meaning of command line scoping
config: split repo scope to local and worktree
config: make scope_name non-static and rename it
t1300: create custom config file without special characters
t1300: fix over-indented HERE-DOCs
config: fix typo in variable name
Preparation for SHA-256 migration continues.
* bc/hash-independent-tests-part-8: (21 commits)
t6024: update for SHA-256
t6006: make hash size independent
t6000: abstract away SHA-1-specific constants
t5703: make test work with SHA-256
t5607: make hash size independent
t5318: update for SHA-256
t5515: make test hash independent
t5321: make test hash independent
t5313: make test hash independent
t5309: make test hash independent
t5302: make hash size independent
t4060: make test work with SHA-256
t4211: add test cases for SHA-256
t4211: move SHA-1-specific test cases into a directory
t4013: make test hash independent
t3311: make test work with SHA-256
t3310: make test work with SHA-256
t3309: make test work with SHA-256
t3308: make test work with SHA-256
t3206: make hash size independent
...
Two related changes, with separate rationale for each:
Rename the 'interactive' backend to 'merge' because:
* 'interactive' as a name caused confusion; this backend has been used
for many kinds of non-interactive rebases, and will probably be used
in the future for more non-interactive rebases than interactive ones
given that we are making it the default.
* 'interactive' is not the underlying strategy; merging is.
* the directory where state is stored is not called
.git/rebase-interactive but .git/rebase-merge.
Rename the 'am' backend to 'apply' because:
* Few users are familiar with git-am as a reference point.
* Related to the above, the name 'am' makes sentences in the
documentation harder for users to read and comprehend (they may read
it as the verb from "I am"); avoiding this difficult places a large
burden on anyone writing documentation about this backend to be very
careful with quoting and sentence structure and often forces
annoying redundancy to try to avoid such problems.
* Users stumble over pronunciation ("am" as in "I am a person not a
backend" or "am" as in "the first and thirteenth letters in the
alphabet in order are "A-M"); this may drive confusion when one user
tries to explain to another what they are doing.
* While "am" is the tool driving this backend, the tool driving git-am
is git-apply, and since we are driving towards lower-level tools
for the naming of the merge backend we may as well do so here too.
* The directory where state is stored has never been called
.git/rebase-am, it was always called .git/rebase-apply.
For all the reasons listed above:
* Modify the documentation to refer to the backends with the new names
* Provide a brief note in the documentation connecting the new names
to the old names in case users run across the old names anywhere
(e.g. in old release notes or older versions of the documentation)
* Change the (new) --am command line flag to --apply
* Rename some enums, variables, and functions to reinforce the new
backend names for us as well.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In order to ensure the merge/interactive backend gets similar coverage
to the am one, add some tests for cases where previously only the am
backend was tested.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have many rebase tests in the testsuite, and often the same test is
repeated multiple times just testing different backends. For those
tests that were specifically trying to test the am backend, add the --am
flag.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A large variety of rebase types are supported by the interactive
machinery, not just the explicitly interactive ones. These all share
the same code and write the same reflog messages, but the "-i" moniker
in those messages doesn't really have much meaning. It also becomes
somewhat distracting once we switch the default from the am-backend to
the interactive one. Just remove the "-i" from these messages.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the past, we had different prompts for different types of rebases:
REBASE: for am-based rebases
REBASE-m: for merge-based rebases
REBASE-i: for interactive-based rebases
It's not clear why this distinction was necessary or helpful; when the
prompt was added in commit e75201963f ("Improve bash prompt to detect
various states like an unfinished merge", 2007-09-30), it simply added
these three different types. Perhaps there was a useful purpose back
then, but there have been some changes:
* The merge backend was deleted after being implemented on top of the
interactive backend, causing the prompt for merge-based rebases to
change from REBASE-m to REBASE-i.
* The interactive backend is used for multiple different types of
non-interactive rebases, so the "-i" part of the prompt doesn't
really mean what it used to.
* Rebase backends have gained more abilities and have a great deal of
overlap, sometimes making it hard to distinguish them.
* Behavioral differences between the backends have also been ironed
out.
* We want to change the default backend from am to interactive, which
means people would get "REBASE-i" by default if we didn't change
the prompt, and only if they specified --am or --whitespace or -C
would they get the "REBASE" prompt.
* In the future, we plan to have "--whitespace", "-C", and even "--am"
run the interactive backend once it can handle everything the
am-backend can.
For all these reasons, make the prompt for any type of rebase just be
"REBASE".
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the past, we dis-allowed rebases using the interactive backend from
performing a fast-forward to short-circuit the rebase operation. This
made sense for explicitly interactive rebases and some implicitly
interactive rebases, but certainly became overly stringent when the
merge backend was re-implemented via the interactive backend.
Just as the am-based rebase has always had to disable the fast-forward
based on a variety of conditions or flags (e.g. --signoff, --whitespace,
etc.), we need to do the same but now with a few more options. However,
continuing to use REBASE_FORCE for tracking this is problematic because
the interactive backend used it for a different purpose. (When
REBASE_FORCE wasn't set, the interactive backend would not fast-forward
the whole series but would fast-forward individual "pick" commits at the
beginning of the todo list, and then a squash or something would cause
it to start generating new commits.) So, introduce a new
allow_preemptive_ff flag contained within cmd_rebase() and use it to
track whether we are going to allow a pre-emptive fast-forward that
short-circuits the whole rebase.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t3432 had several stress tests for can_fast_forward(), whose intent was
to ensure we were using the optimization of just fast forwarding when
possible. However, these tests verified that fast forwards had happened
based on the output that rebase printed to the terminal. We can instead
test more directly that we actually fast-forwarded by checking the
reflog, which also has the side effect of making the tests applicable
for the merge/interactive backend.
This change does lose the distinction between "noop" and "noop-force",
but as stated in commit c9efc21683 ("t3432: test for --no-ff's
interaction with fast-forward", 2019-08-27) which introduced that
distinction: "These tests aren't supposed to endorse the status quo,
just test for what we're currently doing.".
This change does not actually run these tests with the merge/interactive
backend; instead this is just a preparatory commit. A subsequent commit
which fixes can_fast_forward() to work with that backend will then also
change t3432 to add tests of that backend as well.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
restrict_revision in the original shell script was an excluded revision
range. It is also treated that way by the am-backend. In the
conversion from shell to C (see commit 6ab54d17be ("rebase -i:
implement the logic to initialize $revisions in C", 2018-08-28)), the
interactive-backend accidentally treated it as a positive revision
rather than a negated one.
This was missed as there were no tests in the testsuite that tested an
interactive rebase with fork-point behavior.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the merge backend was re-implemented on top of the interactive
backend, the output of rebase --merge changed a little. This change
allowed this test to be simplified, though it wasn't noticed until now.
Simplify the testcase a little.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As established in the previous commit and commit b00bf1c9a8
(git-rebase: make --allow-empty-message the default, 2018-06-27), the
behavior for rebase with different backends in various edge or corner
cases is often more happenstance than design. This commit addresses
another such corner case: commits which "become empty".
A careful reader may note that there are two types of commits which would
become empty due to a rebase:
* [clean cherry-pick] Commits which are clean cherry-picks of upstream
commits, as determined by `git log --cherry-mark ...`. Re-applying
these commits would result in an empty set of changes and a
duplicative commit message; i.e. these are commits that have
"already been applied" upstream.
* [become empty] Commits which are not empty to start, are not clean
cherry-picks of upstream commits, but which still become empty after
being rebased. This happens e.g. when a commit has changes which
are a strict subset of the changes in an upstream commit, or when
the changes of a commit can be found spread across or among several
upstream commits.
Clearly, in both cases the changes in the commit in question are found
upstream already, but the commit message may not be in the latter case.
When cherry-mark can determine a commit is already upstream, then
because of how cherry-mark works this means the upstream commit message
was about the *exact* same set of changes. Thus, the commit messages
can be assumed to be fully interchangeable (and are in fact likely to be
completely identical). As such, the clean cherry-pick case represents a
case when there is no information to be gained by keeping the extra
commit around. All rebase types have always dropped these commits, and
no one to my knowledge has ever requested that we do otherwise.
For many of the become empty cases (and likely even most), we will also
be able to drop the commit without loss of information -- but this isn't
quite always the case. Since these commits represent cases that were
not clean cherry-picks, there is no upstream commit message explaining
the same set of changes. Projects with good commit message hygiene will
likely have the explanation from our commit message contained within or
spread among the relevant upstream commits, but not all projects run
that way. As such, the commit message of the commit being rebased may
have reasoning that suggests additional changes that should be made to
adapt to the new base, or it may have information that someone wants to
add as a note to another commit, or perhaps someone even wants to create
an empty commit with the commit message as-is.
Junio commented on the "become-empty" types of commits as follows[1]:
WRT a change that ends up being empty (as opposed to a change that
is empty from the beginning), I'd think that the current behaviour
is desireable one. "am" based rebase is solely to transplant an
existing history and want to stop much less than "interactive" one
whose purpose is to polish a series before making it publishable,
and asking for confirmation ("this has become empty--do you want to
drop it?") is more appropriate from the workflow point of view.
[1] https://lore.kernel.org/git/xmqqfu1fswdh.fsf@gitster-ct.c.googlers.com/
I would simply add that his arguments for "am"-based rebases actually
apply to all non-explicitly-interactive rebases. Also, since we are
stating that different cases should have different defaults, it may be
worth providing a flag to allow users to select which behavior they want
for these commits.
Introduce a new command line flag for selecting the desired behavior:
--empty={drop,keep,ask}
with the definitions:
drop: drop commits which become empty
keep: keep commits which become empty
ask: provide the user a chance to interact and pick what to do with
commits which become empty on a case-by-case basis
In line with Junio's suggestion, if the --empty flag is not specified,
pick defaults as follows:
explicitly interactive: ask
otherwise: drop
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Different rebase backends have different treatment for commits which
start empty (i.e. have no changes relative to their parent), and the
--keep-empty option was added at some point to allow adjusting behavior.
The handling of commits which start empty is actually quite similar to
commit b00bf1c9a8 (git-rebase: make --allow-empty-message the default,
2018-06-27), which pointed out that the behavior for various backends is
often more happenstance than design. The specific change made in that
commit is actually quite relevant as well and much of the logic there
directly applies here.
It makes a lot of sense in 'git commit' to error out on the creation of
empty commits, unless an override flag is provided. However, once
someone determines that there is a rare case that merits using the
manual override to create such a commit, it is somewhere between
annoying and harmful to have to take extra steps to keep such
intentional commits around. Granted, empty commits are quite rare,
which is why handling of them doesn't get considered much and folks tend
to defer to existing (accidental) behavior and assume there was a reason
for it, leading them to just add flags (--keep-empty in this case) that
allow them to override the bad defaults. Fix the interactive backend so
that --keep-empty is the default, much like we did with
--allow-empty-message. The am backend should also be fixed to have
--keep-empty semantics for commits that start empty, but that is not
included in this patch other than a testcase documenting the failure.
Note that there was one test in t3421 which appears to have been written
expecting --keep-empty to not be the default as correct behavior. This
test was introduced in commit 00b8be5a4d ("add tests for rebasing of
empty commits", 2013-06-06), which was part of a series focusing on
rebase topology and which had an interesting original cover letter at
https://lore.kernel.org/git/1347949878-12578-1-git-send-email-martinvonz@gmail.com/
which noted
Your input especially appreciated on whether you agree with the
intent of the test cases.
and then went into a long example about how one of the many tests added
had several questions about whether it was correct. As such, I believe
most the tests in that series were about testing rebase topology with as
many different flags as possible and were not trying to state in general
how those flags should behave otherwise.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code to compute the commit-graph has been taught to use a more
robust way to tell if two object directories refer to the same
thing.
* tb/commit-graph-object-dir:
commit-graph.h: use odb in 'load_commit_graph_one_fd_st'
commit-graph.c: remove path normalization, comparison
commit-graph.h: store object directory in 'struct commit_graph'
commit-graph.h: store an odb in 'struct write_commit_graph_context'
t5318: don't pass non-object directory to '--object-dir'
The index-pack code now diagnoses a bad input packstream that
records the same object twice when it is used as delta base; the
code used to declare a software bug when encountering such an
input, but it is an input error.
* jk/index-pack-dupfix:
index-pack: downgrade twice-resolved REF_DELTA to die()
The code to automatically shrink the fan-out in the notes tree had
an off-by-one bug, which has been killed.
* jh/notes-fanout-fix:
notes.c: fix off-by-one error when decreasing notes fanout
t3305: check notes fanout more carefully and robustly
The way "git submodule status" reports an initialized but not yet
populated submodule has not been reimplemented correctly when a
part of the "git submodule" command was rewritten in C, which has
been corrected.
* pk/status-of-uncloned-submodule:
t7400: testcase for submodule status on unregistered inner git repos
submodule: fix status of initialized but not cloned submodules
t7400: add a testcase for submodule status on empty dirs
The diff-* plumbing family of subcommands now pay attention to the
diff.wsErrorHighlight configuration, which has been ignored before;
this allows "git add -p" to also show the whitespace problems to
the end user.
* jk/diff-honor-wserrhighlight-in-plumbing:
diff: move diff.wsErrorHighlight to "basic" config
Some rough edges in the sparse-checkout feature, especially around
the cone mode, have been cleaned up.
* ds/sparse-checkout-harden:
sparse-checkout: fix cone mode behavior mismatch
sparse-checkout: improve docs around 'set' in cone mode
sparse-checkout: escape all glob characters on write
sparse-checkout: use C-style quotes in 'list' subcommand
sparse-checkout: unquote C-style strings over --stdin
sparse-checkout: write escaped patterns in cone mode
sparse-checkout: properly match escaped characters
sparse-checkout: warn on globs in cone patterns
sparse-checkout: detect short patterns
sparse-checkout: cone mode does not recognize "**"
sparse-checkout: fix documentation typo for core.sparseCheckoutCone
clone: fix --sparse option with URLs
sparse-checkout: create leading directories
t1091: improve here-docs
t1091: use check_files to reduce boilerplate
A low-level API function get_oid(), that accepts various ways to
name an object, used to issue end-user facing error messages
without l10n, which has been updated to be translatable.
* jk/get-oid-error-message-i18n:
sha1-name: mark get_oid() error messages for translation
t1506: drop space after redirection operator
t1400: avoid "test" string comparisons
Allow the rebase.missingCommitsCheck configuration to kick in when
"rebase --edit-todo" and "rebase --continue" restarts the procedure.
* ag/edit-todo-drop-check:
rebase-interactive: warn if commit is dropped with `rebase --edit-todo'
sequencer: move check_todo_list_from_file() to rebase-interactive.c
Test updates.
* dl/test-must-fail-fixes-2:
t4124: only mark git command with test_must_fail
t3507: use test_path_is_missing()
t3507: fix indentation
t3504: do check for conflict marker after failed cherry-pick
t3419: stop losing return code of git command
t3415: increase granularity of test_auto_{fixup,squash}()
t3415: stop losing return codes of git commands
t3310: extract common notes_merge_files_gone()
t3030: use test_path_is_missing()
t2018: replace "sha" with "oid"
t2018: don't lose return code of git commands
t2018: teach do_checkout() to accept `!` arg
t2018: be more discerning when checking for expected exit codes
t2018: improve style of if-statement
t2018: add space between function name and ()
t2018: remove trailing space from test description
"git rebase -i" identifies existing commits in its todo file with
their abbreviated object name, which could become ambigous as it
goes to create new commits, and has a mechanism to avoid ambiguity
in the main part of its execution. A few other cases however were
not covered by the protection against ambiguity, which has been
corrected.
* js/rebase-i-with-colliding-hash:
rebase -i: also avoid SHA-1 collisions with missingCommitsCheck
rebase -i: re-fix short SHA-1 collision
parse_insn_line(): improve error message when parsing failed
A new version of fsmonitor-watchman hook has been introduced, to
avoid races.
* kw/fsmonitor-watchman-racefix:
fsmonitor: update documentation for hook version and watchman hooks
fsmonitor: add fsmonitor hook scripts for version 2
fsmonitor: handle version 2 of the hooks that will use opaque token
fsmonitor: change last update timestamp on the index_state to opaque token
The transport protocol version 2 becomes the default one.
* jn/promote-proto2-to-default:
fetch: default to protocol version 2
protocol test: let protocol.version override GIT_TEST_PROTOCOL_VERSION
test: request GIT_TEST_PROTOCOL_VERSION=0 when appropriate
config doc: protocol.version is not experimental
fetch test: use more robust test for filtered objects
Two help messages given when "git add" notices the user gave it
nothing to add have been updated to use advise() API.
* hw/advice-add-nothing:
add: change advice config variables used by the add API
add: use advise function to display hints
"git grep --no-index" should not get affected by the contents of
the .gitmodules file but when "--recurse-submodules" is given or
the "submodule.recurse" variable is set, it did. Now these
settings are ignored in the "--no-index" mode.
* pb/do-not-recurse-grep-no-index:
grep: ignore --recurse-submodules if --no-index is given
Corner case bugs in "git clean" that stems from a (necessarily for
performance reasons) awkward calling convention in the directory
enumeration API has been corrected.
* en/fill-directory-fixes-more:
dir: point treat_leading_path() warning to the right place
dir: restructure in a way to avoid passing around a struct dirent
dir: treat_leading_path() and read_directory_recursive(), round 2
clean: demonstrate a bug with pathspecs
"git restore --staged" did not correctly update the cache-tree
structure, resulting in bogus trees to be written afterwards, which
has been corrected.
* nd/switch-and-restore:
restore: invalidate cache-tree when removing entries with --staged
Reduce unnecessary round-trip when running "ls-remote" over the
stateless RPC mechanism.
* jk/no-flush-upon-disconnecting-slrpc-transport:
transport: don't flush when disconnecting stateless-rpc helper
"git commit" gives output similar to "git status" when there is
nothing to commit, but without honoring the advise.statusHints
configuration variable, which has been corrected.
* hw/commit-advise-while-rejecting:
commit: honor advice.statusHints when rejecting an empty commit
Just as rev-list recently learned to combine filters and bitmaps, let's
do the same for pack-objects. The infrastructure is all there; we just
need to pass along our filter options, and the pack-bitmap code will
decide to use bitmaps or not.
This unsurprisingly makes things faster for partial clones of large
repositories (here we're cloning linux.git):
Test HEAD^ HEAD
------------------------------------------------------------------------------
5310.11: simulated partial clone 38.94(37.28+5.87) 11.06(11.27+4.07) -71.6%
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Just as the previous commit implemented BLOB_NONE, we can support
BLOB_LIMIT filters by looking at the sizes of any blobs in the result
and unsetting their bits as appropriate. This is slightly more expensive
than BLOB_NONE, but still produces a noticeable speedup (these results
are on git.git):
Test HEAD~2 HEAD
------------------------------------------------------------------------------------
5310.9: rev-list count with blob:none 1.80(1.77+0.02) 0.22(0.20+0.02) -87.8%
5310.10: rev-list count with blob:limit=1k 1.99(1.96+0.03) 0.29(0.25+0.03) -85.4%
The implementation is similar to the BLOB_NONE one, with the exception
that we have to go object-by-object while walking the blob-type bitmap
(since we can't mask out the matches, but must look up the size
individually for each blob). The trick with using ctz64() is taken from
show_objects_for_type(), which likewise needs to find individual bits
(but wants to quickly skip over big chunks without blobs).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We can easily support BLOB_NONE filters with bitmaps. Since we know the
types of all of the objects, we just need to clear the result bits of
any blobs.
Note two subtleties in the implementation (which I also called out in
comments):
- we have to include any blobs that were specifically asked for (and
not reached through graph traversal) to match the non-bitmap version
- we have to handle in-pack and "ext_index" objects separately.
Arguably prepare_bitmap_walk() could be adding these ext_index
objects to the type bitmaps. But it doesn't for now, so let's match
the rest of the bitmap code here (it probably wouldn't be an
efficiency improvement to do so since the cost of extending those
bitmaps is about the same as our loop here, but it might make the
code a bit simpler).
Here are perf results for the new test on git.git:
Test HEAD^ HEAD
--------------------------------------------------------------------------------
5310.9: rev-list count with blob:none 1.67(1.62+0.05) 0.22(0.21+0.02) -86.8%
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ever since we added reachability bitmap support, we've been able to use
it with rev-list to get the full list of objects, like:
git rev-list --objects --use-bitmap-index --all
But you can't do so without --objects, since we weren't ready to just
show the commits. However, the internals of the bitmap code are mostly
ready for this: they avoid opening up trees when walking to fill in the
bitmaps. We just need to actually pass in the rev_info to
traverse_bitmap_commit_list() so it knows which types to bother
triggering our callback for.
For completeness, the perf test now covers both the existing --objects
case, as well as the new commits-only behavior (the objects one got way
faster when we introduced bitmaps, but obviously isn't improved now).
Here are numbers for linux.git:
Test HEAD^ HEAD
------------------------------------------------------------------------
5310.7: rev-list (commits) 8.29(8.10+0.19) 1.76(1.72+0.04) -78.8%
5310.8: rev-list (objects) 8.06(7.94+0.12) 8.14(7.94+0.13) +1.0%
That run was cheating a little, as I didn't have any commit-graph in the
repository, and we'd built it by default these days when running git-gc.
Here are numbers with a commit-graph:
Test HEAD^ HEAD
------------------------------------------------------------------------
5310.7: rev-list (commits) 0.70(0.58+0.12) 0.51(0.46+0.04) -27.1%
5310.8: rev-list (objects) 6.20(6.09+0.10) 6.27(6.16+0.11) +1.1%
Still an improvement, but a lot less impressive.
We could have the perf script remove any commit-graph to show the
out-sized effect, but it probably makes sense to leave it in what would
be a more typical setup.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We check the results of "rev-list --use-bitmap-index" by comparing it to
the same traversal without the bitmap option. However, this is a little
tricky to do because of some output differences (see the included
comment for details). Let's pull this out into a helper function, since
we'll be adding some similar tests.
While we're at it, let's also try to confirm that the bitmap output did
indeed use bitmaps. Since the code internally falls back to the
non-bitmap path in some cases, the tests are at risk of becoming trivial
noops.
This is a bit fragile, as not all outputs will differ (e.g., looking at
only the commits from a fully-bitmapped pack will end up exactly the
same as the normal traversal order, since it also matches the pack
order). So we'll provide an escape hatch by which tests can disable this
check (which should only be used after manually confirming that bitmaps
kicked in).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The prior commit taught "--count --objects" to work without bitmaps. We
should be able to get the same answer much more quickly with bitmaps.
Note that we punt on the max_count case here. This perhaps _could_ be
made to work if we find all of the boundary commits and treat them as
UNINTERESTING, subtracting them (and their reachable objects) from the
set we return. That implies an actual commit traversal, but we'd still
be faster due to avoiding opening up any trees. Given the complexity and
the fact that anyone is unlikely to want this, it makes sense to just
fall back to the non-bitmap case for now.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current behavior from "rev-list --count --objects" is nonsensical:
we enumerate all of the objects except commits, but then give a count of
commits. This wasn't planned, and is just what the code happens to do.
Instead, let's give the answer the user almost certainly wanted: the
full count of objects.
Note that there are more complicated cases around cherry-marking, etc.
We'll punt on those for now, but let the user know that we can't produce
an answer (rather than giving them something useless).
We'll test both the new feature as well as a vanilla --count of commits,
since that surprisingly doesn't seem to be covered in the existing
tests.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On Windows, it is quite common to work with network drives. The format
of the paths to network drives (or "network shares", or UNC paths) is:
\\<server>\<share>\...
We already have a couple regression tests revolving around those types
of paths, but we missed cloning and fetching from UNC paths without
leading `file://` (and with backslashes instead of forward slashes).
This lil' patch closes that gap.
It gets a bit silly to add the commands to the name of the test script,
so let's just rename it while we're testing more UNC stuff.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When grepping through the output of a command in the test suite, there
is always a chance that something goes wrong, in which case there would
not be anything useful to debug.
Let's redirect the output into a file instead, and grep that file, so
that the log can be inspected easily if the grep fails.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
