A subsequent patch will perform the same packfile replacement that is
already done twice, so refactor it into its own function. Also, the same
subsequent patch will use, in another way, part of the packfile
replacement functionality, so extract those out too.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When `rebase -r` finishes it removes any refs under refs/rewritten that
it has created. However if the user aborts or quits the rebase refs are
not removed. This can cause problems for future rebases. For example I
recently wanted to merge a updated version of a topic branch into an
integration branch so ran `rebase -ir` and removed the picks and label
for the topic branch from the todo list so that
merge -C <old-merge> topic
would pick up the new version of topic. Unfortunately
refs/rewritten/topic already existed from a previous rebase that had
been aborted so the rebase just used the old topic, not the new one.
The logic for the non-interactive quit case is changed to ensure
`buf` is always freed.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If there is an error when removing the state directory then we should
report it. This matches what the non-interactive rebase does.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If rebase --quit cannot remove the state directory then it dies. However
when rebase finishes normally or the user runs rebase --abort any errors
that occur when removing the state directory are ignored. That is fixed
by this commit.
All of the callers of finish_rebase() except the code
that handles --abort are careful to make sure they get a postive return
value, do the same for --abort.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the user asks to merge "foo" and we suggest "origin/foo" instead,
we do so by simply chopping off "refs/remotes/" from the front of the
suggested ref. This is usually fine, but it's possible that the
resulting name is ambiguous (e.g., you have "refs/heads/origin/foo",
too).
Let's use shorten_unambiguous_ref() to do this the right way, which
should usually yield the same "origin/foo", but "remotes/origin/foo" if
necessary.
Note that in this situation there may be other options (e.g., we could
suggest "heads/origin/foo" as well). I'll leave that up for debate; the
focus here is just to avoid giving advice that does not actually do what
we expect.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When "git merge" sees an unknown refname, we iterate through the refs to
try to suggest some possible alternates. We do so with for_each_ref(),
and in the callback we add some of the refnames we get to a
string_list that is declared with NODUP, directly adding a pointer into
the refname string our callback received.
But the for_each_ref() machinery does not promise that the refname
string will remain valid, and as a result we may print garbage memory.
The code in question dates back to its inception in e56181060e (help:
add help_unknown_ref(), 2013-05-04). But back then, the refname strings
generally did remain stable, at least immediately after the
for_each_ref() call. Later, in d1cf15516f (packed_ref_iterator_begin():
iterate using `mmapped_ref_iterator`, 2017-09-25), we started
consistently re-using a separate buffer for packed refs.
The fix is simple: duplicate the strings we intend to collect. We
already call string_list_clear(), so the memory is correctly freed.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The only remaining scripted part of `git rebase` is the
`--preserve-merges` backend. Meaning: there is little reason to keep the
"library of common rebase functions" as a separate file.
While moving the functions to `git-rebase--preserve-merges.sh`, we also
drop the `move_to_original_branch` function that is no longer used.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Update a code comment that referred to those files as if they were still
there.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This went away in 0609b741a4 (rebase -i: combine rebase--interactive.c
with rebase.c, 2019-04-17).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
One test case's title mentioned the then-current implementation detail
that the `--am` backend was implemented in `git-rebase--am.sh`.
This is no longer the case, so let's update the title to reflect the
current reality.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 21853626ea (built-in rebase: call `git am` directly, 2019-01-18),
the built-in rebase already uses the built-in `git am` directly.
Now that d03ebd411c (rebase: remove the rebase.useBuiltin setting,
2019-03-18) even removed the scripted rebase, there is no longer any
user of `git-rebase--am.sh`, so let's just remove it.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The stash.useBuiltin variable introduced in 90a462725e ("stash:
optionally use the scripted version again", 2019-02-25) was turned on by
default, but had no documentation.
Let's document it so that users who run into any stability issues with
the C rewrite know there's an escape hatch, and spell out that the
user should please report the bug when they have to turn off the
built-in stash.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Automatic re-encoding of commit messages (and dropping of the encoding
header) hurts attempts to do reversible history rewrites (e.g. sha1sum
<-> sha256sum transitions, some subtree rewrites), and seems
inconsistent with the general principle followed elsewhere in
fast-export of requiring explicit user requests to modify the output
(e.g. --signed-tags=strip, --tag-of-filtered-object=rewrite). Add a
--reencode flag that the user can use to specify, and like other
fast-export flags, default it to 'abort'.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The find_encoding() function returned the encoding used by a commit
message, returning a default of git_commit_encoding (usually UTF-8).
Although the current code does not differentiate between a commit which
explicitly requested UTF-8 and one where we just assume UTF-8 because no
encoding is set, it will become important when we try to preserve the
encoding header. Since is_encoding_utf8() returns true when passed
NULL, we can just return NULL from find_encoding() instead of returning
git_commit_encoding.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When fast-export encounters a commit with an 'encoding' header, it tries
to reencode in UTF-8 and then drops the encoding header. However, if it
fails to reencode in UTF-8 because e.g. one of the characters in the
commit message was invalid in the old encoding, then we need to retain
the original encoding or otherwise we lose information needed to
understand all the other (valid) characters in the original commit
message.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since git supports commit messages with an encoding other than UTF-8,
allow fast-import to import such commits. This may be useful for folks
who do not want to reencode commit messages from an external system, and
may also be useful to achieve reversible history rewrites (e.g. sha1sum
<-> sha256sum transitions or subtree work) with git repositories that
have used specialized encodings in their commit history.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This test used an author with non-ascii characters in the name, but no
special commit message. It then grep'ed for those non-ascii characters,
but those are guaranteed to exist regardless of the reencoding process
since the reencoding only affects the commit message, not the author or
committer names. As such, the test would work even if the re-encoding
process simply stripped the commit message entirely. Modify the test to
actually check that the reencoding into UTF-8 worked.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As discussed in [1] there's a regression in the "pu" branch now
because a new test implicitly assumed that a previous test guarded by
a prerequisite had been run. Add a "GIT_TEST_FAIL_PREREQS" special
test setup where we'll skip (nearly) all tests guarded by
prerequisites, allowing us to easily emulate those platform where we
don't run these tests.
As noted in the documentation I'm adding I'm whitelisting the SYMLINKS
prerequisite for now. A lot of tests started failing if we lied about
not supporting symlinks. It's also unlikely that we'll have a failing
test due to a hard dependency on symlinks without that being the
obvious cause, so for now it's not worth the effort to make it work.
1. https://public-inbox.org/git/nycvar.QRO.7.76.6.1905131531000.44@tvgsbejvaqbjf.bet/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In f41179f16b (parse-options: avoid magic return codes, 2019-01-27),
the signature of the low-level parse-opt callback function was changed
to return an `enum`.
And while the implementations were changed, one declaration was left
unchanged, still claiming to return `int`.
This can potentially lead to problems, as compilers are free to choose
any integral type for an `enum` as long as it can represent all declared
values.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Workaround for standard-compliant but less-than-useful behaviour of
access(2) for the root user.
* cc/access-on-aix-workaround:
git-compat-util: work around for access(X_OK) under root
"git chery-pick" (and "revert" that shares the same runtime engine)
that deals with multiple commits got confused when the final step
gets stopped with a conflict and the user concluded the sequence
with "git commit". Attempt to fix it by cleaning up the state
files used by these commands in such a situation.
* pw/clean-sequencer-state-upon-final-commit:
fix cherry-pick/revert status after commit
commit/reset: try to clean up sequencer state
The internal implementation of "git rebase -i" has been updated to
avoid forking a separate "rebase--interactive" process.
* pw/rebase-i-internal:
rebase -i: run without forking rebase--interactive
rebase: use a common action enum
rebase -i: use struct rebase_options in do_interactive_rebase()
rebase -i: use struct rebase_options to parse args
rebase -i: use struct object_id for squash_onto
rebase -i: use struct commit when parsing options
rebase -i: remove duplication
rebase -i: combine rebase--interactive.c with rebase.c
rebase: use OPT_RERERE_AUTOUPDATE()
rebase: rename write_basic_state()
rebase: don't translate trace strings
sequencer: always discard index after checkout
The script to aggregate perf result unconditionally depended on
libjson-perl even though it did not have to, which has been
corrected.
* jk/perf-aggregate-wo-libjson:
t/perf: depend on perl JSON only when using --codespeed
Docfix.
* dl/rev-tilde-doc-clarify:
revisions.txt: remove ambibuity between <rev>:<path> and :<path>
revisions.txt: mention <rev>~ form
revisions.txt: mark optional rev arguments with []
revisions.txt: change "rev" to "<rev>"
A "ls-files" that emulates "find" to enumerate files in the working
tree resulted in duplicated Makefile rules that caused the build to
issue an unnecessary warning during a trial build after merge
conflicts are resolved in working tree *.h files but before the
resolved results are added to the index. This has been corrected.
* jc/make-dedup-ls-files-output:
Makefile: dedup list of files obtained from ls-files
Fix index-pack perf test so that the repeated invocations always
run in an empty repository, which emulates the initial clone
situation better.
* jk/p5302-avoid-collision-check-cost:
p5302: create the repo in each index-pack test
Mechanically and systematically drop "extern" from function
declarlation.
* dl/no-extern-in-func-decl:
*.[ch]: manually align parameter lists
*.[ch]: remove extern from function declarations using sed
*.[ch]: remove extern from function declarations using spatch
The connectivity bitmaps are created by default in bare
repositories now; also the pathname hash-cache is created by
default to avoid making crappy deltas when repacking.
* ew/repack-with-bitmaps-by-default:
pack-objects: default to writing bitmap hash-cache
t5310: correctly remove bitmaps for jgit test
repack: enable bitmaps by default on bare repos
During an initial "git clone --depth=..." partial clone, it is
pointless to spend cycles for a large portion of the connectivity
check that enumerates and skips promisor objects (which by
definition is all objects fetched from the other side). This has
been optimized out.
* js/partial-clone-connectivity-check:
t/perf: add perf script for partial clones
clone: do faster object check for partial clones
Polishing of the new trace2 facility continues. The system-level
configuration can specify site-wide trace2 settings, which can be
overridden with per-user configuration and environment variables.
* jh/trace2-sid-fix:
trace2: fixup access problem on /etc/gitconfig in read_very_early_config
trace2: update docs to describe system/global config settings
trace2: make SIDs more unique
trace2: clarify UTC datetime formatting
trace2: report peak memory usage of the process
trace2: use system/global config for default trace2 settings
config: add read_very_early_config()
trace2: find exec-dir before trace2 initialization
trace2: add absolute elapsed time to start event
trace2: refactor setting process starting time
config: initialize opts structure in repo_read_config()
In git-difftool.txt, it says
'git difftool' falls back to 'git mergetool' config variables when the
difftool equivalents have not been defined.
However, when `diff.guitool` is missing, it doesn't fallback to
anything. Make git-difftool fallback to `merge.guitool` when `diff.guitool` is
missing.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In git-difftool, these options specify which tool to ultimately run. As
a result, they are logically conflicting. Explicitly disallow these
options from being used together.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In git-difftool, if the tool is called with --gui but `diff.guitool` is
not set, it falls back to `diff.tool`. Make git-mergetool also fallback
from `merge.guitool` to `merge.tool` if the former is undefined.
If git-difftool, when called with `--gui`, were to use
`get_configured_mergetool` in a future patch, it would also get the
fallback behavior in the following precedence:
1. diff.guitool
2. merge.guitool
3. diff.tool
4. merge.tool
The behavior for when difftool or mergetool are called without `--gui`
should be identical with or without this patch.
Note that the search loop could be written as
sections="merge"
keys="tool"
if diff_mode
then
sections="diff $sections"
fi
if gui_mode
then
keys="guitool $keys"
fi
merge_tool=$(
IFS=' '
for key in $keys
do
for section in $sections
do
selected=$(git config $section.$key)
if test -n "$selected"
then
echo "$selected"
return
fi
done
done)
which would make adding a mode in the future much easier. However,
adding a new mode will likely never happen as it is highly discouraged
so, as a result, it is written in its current form so that it is more
readable for future readers.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before, in `get_configured_merge_tool`, we would test the value of the
first argument directly, which corresponded to whether we were using
guitool. However, since `$GIT_MERGETOOL_GUI` is available as an
environment variable, create the `gui_mode` function which increases the
clarify of functions which use it.
While we're at it, add a space before `()` in function definitions to
fix the style.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In git-mergetool, the logic for getting which merge tool to use is
duplicated in git-mergetool--lib, except for the fact that it needs to
know whether the tool was guessed or not.
Rewrite `get_merge_tool` to return whether or not the tool was guessed
through the return code and make git-mergetool call this function
instead of duplicating the logic. Note that 1 was chosen to be the
return code of when a tool is guessed because it seems like a slightly
more abnormal condition than getting a tool that's explicitly specified
but this is completely arbitrary.
Also, let `$GIT_MERGETOOL_GUI` be set to determine whether or not the
guitool will be selected.
This change is not completely backwards compatible as there may be
external users of git-mergetool--lib. However, only one user,
git-diffall[1], was found from searching GitHub and Google, and this
tool is superseded by `git difftool --dir-diff` anyway. It seems very
unlikely that there exists an external caller that would take into
account the return code of `get_merge_tool` as it would always return 0
before this change so this change probably does not affect any external
users.
[1]: https://github.com/thenigan/git-diffall
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/technical/api-trace2.txt contains the full details
of the trace2 API and the GIT_TR2* environment variables. However,
most environment variables are included in Documentation/git.txt,
including the GIT_TRACE* variables.
Add a brief description of the GIT_TR2* variables with links to
the full technical details. The biggest difference from the
original variables is that we can specify a Unix Domain Socket.
Mention this difference, but leave the details to the technical
documents.
Reported-by: Szeder Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change the git-send-email command-line argument parsing and config
reading code to parse those two in the right order. I.e. first we set
our hardcoded defaults, then we read our config, and finally we read
the command-line, with later sets overriding earlier sets.
This fixes a bug introduced in e67a228cd8 ("send-email:
automatically determine transfer-encoding", 2018-07-08). That change
broke the reading of sendmail.transferencoding because it wasn't
careful to update the code to parse them in the previous "defaults
-> getopt -> config" order.
But as we can see from the history for this file doing it this way was
never what we actually wanted, it's just something we grew organically
as of 5483c71d7a ("git-send-email: make options easier to configure.",
2007-06-27) and have been dealing with the fallout since, e.g. in
463b0ea22b ("send-email: Fix %config_path_settings handling",
2011-10-14).
As can be seen in this change the only place where we actually want to
do something clever is with the to/cc/bcc variables, where setting
them on the command-line (or using --no-{to,cc,bcc}) should clear out
values we grab from the config.
All the rest are things where the command-line should simply override
the config values, and by reading the config first the config code
doesn't need all this "let's not set it, if it was on the command-line"
special-casing, as [1] shows we'd otherwise need to care about the
difference between whether something was a default or present in
config to fix the bug in e67a228cd8.
1. https://public-inbox.org/git/20190508105607.178244-2-gitster@pobox.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "to" and "cc" variables are named @initial_{to,cc}, let's rename
this one to match them.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is in preparation for a later change where we'll read the config
first before parsing command-line options. As the move detection will
show no lines (except one line of comment) is changed here, just moved
around.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The argument of a `label` command does *not* want to be turned into an
abbreviated SHA-1.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix a trivial bug that's been here since the shared/do_write_index
tracing was added in 42fee7a388 ("trace2:data: add trace2
instrumentation to index read/write", 2019-02-22). We should have
enter/leave points, not two enter/enter points. This resulted in an
"enter" event without a corresponding "leave" event.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
During git-init we chdir() to the target directory, but --template is
not adjusted. So it's relative to the target directory instead of
current directory.
It would be ok if it's documented, but --template in git-init.txt
mentions nothing about this behavior. Change it to be relative to $CWD,
which is much more intuitive.
The changes in the test suite show that this relative-to-target behavior
is actually used. I just hope that it's only used in the test suite and
it's safe to change. Otherwise, the other option is just document
it (i.e. relative to target dir) and move on.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
