Commit Graph

10911 Commits

Author SHA1 Message Date
Jeff King
5c885c1b53 test-lib: drop PID from test-results/*.count
Each test run generates a "count" file in t/test-results
that stores the number of successful, failed, etc tests.
If you run "t1234-foo.sh", that file is named as
"t/test-results/t1234-foo-$$.count"

The addition of the PID there is serving no purpose, and
makes analysis of the count files harder.

The presence of the PID dates back to 2d84e9f (Modify
test-lib.sh to output stats to t/test-results/*,
2008-06-08), but no reasoning is given there. Looking at the
current code, we can see that other files we write to
test-results (like *.exit and *.out) do _not_ have the PID
included. So the presence of the PID does not meaningfully
allow one to store the results from multiple runs anyway.

Moreover, anybody wishing to read the *.count files to
aggregate results has to deal with the presence of multiple
files for a given test (and figure out which one is the most
recent based on their timestamps!). The only consumer of
these files is the aggregate.sh script, which arguably gets
this wrong. If a test is run multiple times, its counts will
appear multiple times in the total (I say arguably only
because the desired semantics aren't documented anywhere,
but I have trouble seeing how this behavior could be
useful).

So let's just drop the PID, which fixes aggregate.sh, and
will make new features based around the count files easier
to write.

Note that since the count-file may already exist (when
re-running a test), we also switch the "cat" from appending
to truncating. The use of append here was pointless in the
first place, as we expected to always write to a unique file.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-30 12:08:58 -07:00
Junio C Hamano
9b601eafd1 Merge branch 'jk/difftool-in-subdir' into maint
"git difftool <paths>..." started in a subdirectory failed to
interpret the paths relative to that directory, which has been
fixed.

* jk/difftool-in-subdir:
  difftool: use Git::* functions instead of passing around state
  difftool: avoid $GIT_DIR and $GIT_WORK_TREE
  difftool: fix argument handling in subdirs
2016-08-12 09:16:57 -07:00
Junio C Hamano
574a31b5b7 Merge branch 'rs/use-strbuf-addstr' into maint
* rs/use-strbuf-addstr:
  use strbuf_addstr() instead of strbuf_addf() with "%s"
  use strbuf_addstr() for adding constant strings to a strbuf
2016-08-10 11:55:34 -07:00
Junio C Hamano
66d6511c53 Merge branch 'jk/t4205-cleanup' into maint
Test modernization.

* jk/t4205-cleanup:
  t4205: indent here documents
  t4205: drop top-level &&-chaining
2016-08-10 11:55:32 -07:00
Junio C Hamano
f7fb6e21b8 Merge branch 'nd/fbsd-lazy-mtime' into maint
FreeBSD can lie when asked mtime of a directory, which made the
untracked cache code to fall back to a slow-path, which in turn
caused tests in t7063 to fail because it wanted to verify the
behaviour of the fast-path.

* nd/fbsd-lazy-mtime:
  t7063: work around FreeBSD's lazy mtime update feature
2016-08-10 11:55:30 -07:00
Junio C Hamano
85b2ea29e8 Merge branch 'js/t4130-rename-without-ino' into maint
Windows port was failing some tests in t4130, due to the lack of
inum in the returned values by its lstat(2) emulation.

* js/t4130-rename-without-ino:
  t4130: work around Windows limitation
2016-08-10 11:55:30 -07:00
Junio C Hamano
7b163e9187 Merge branch 'jc/grep-commandline-vs-configuration' into maint
"git -c grep.patternType=extended log --basic-regexp" misbehaved
because the internal API to access the grep machinery was not
designed well.

* jc/grep-commandline-vs-configuration:
  grep: further simplify setting the pattern type
2016-08-10 11:55:29 -07:00
Junio C Hamano
cee6c5b47b Merge branch 'jk/diff-do-not-reuse-wtf-needs-cleaning' into maint
There is an optimization used in "git diff $treeA $treeB" to borrow
an already checked-out copy in the working tree when it is known to
be the same as the blob being compared, expecting that open/mmap of
such a file is faster than reading it from the object store, which
involves inflating and applying delta.  This however kicked in even
when the checked-out copy needs to go through the convert-to-git
conversion (including the clean filter), which defeats the whole
point of the optimization.  The optimization has been disabled when
the conversion is necessary.

* jk/diff-do-not-reuse-wtf-needs-cleaning:
  diff: do not reuse worktree files that need "clean" conversion
2016-08-10 11:55:28 -07:00
Junio C Hamano
61efc5c2d8 Merge branch 'mm/status-suggest-merge-abort' into maint
"git status" learned to suggest "merge --abort" during a conflicted
merge, just like it already suggests "rebase --abort" during a
conflicted rebase.

* mm/status-suggest-merge-abort:
  status: suggest 'git merge --abort' when appropriate
2016-08-10 11:55:19 -07:00
Junio C Hamano
f7b01d3eb7 Merge branch 'rs/submodule-config-code-cleanup' into maint
Code cleanup.

* rs/submodule-config-code-cleanup:
  submodule-config: fix test binary crashing when no arguments given
  submodule-config: combine early return code into one goto
  submodule-config: passing name reference for .gitmodule blobs
  submodule-config: use explicit empty string instead of strbuf in config_from()
2016-08-08 14:21:46 -07:00
Junio C Hamano
970994deb1 Merge branch 'nd/test-helpers' into maint
Build clean-up.

* nd/test-helpers:
  t/test-lib.sh: fix running tests with --valgrind
  Makefile: use VCSSVN_LIB to refer to svn library
  Makefile: drop extra dependencies for test helpers
2016-08-08 14:21:43 -07:00
Junio C Hamano
e69771c3af Merge branch 'ah/unpack-trees-advice-messages' into maint
Grammofix.

* ah/unpack-trees-advice-messages:
  unpack-trees: fix English grammar in do-this-before-that messages
2016-08-08 14:21:40 -07:00
Junio C Hamano
aa9136a87e Merge branch 'nd/pack-ofs-4gb-limit' into maint
"git pack-objects" and "git index-pack" mostly operate with off_t
when talking about the offset of objects in a packfile, but there
were a handful of places that used "unsigned long" to hold that
value, leading to an unintended truncation.

* nd/pack-ofs-4gb-limit:
  fsck: use streaming interface for large blobs in pack
  pack-objects: do not truncate result in-pack object size on 32-bit systems
  index-pack: correct "offset" type in unpack_entry_data()
  index-pack: report correct bad object offsets even if they are large
  index-pack: correct "len" type in unpack_data()
  sha1_file.c: use type off_t* for object_info->disk_sizep
  pack-objects: pass length to check_pack_crc() without truncation
2016-08-08 14:21:36 -07:00
Junio C Hamano
a52fb9b8f3 Merge branch 'js/ignore-space-at-eol' into maint
An age old bug that caused "git diff --ignore-space-at-eol"
misbehave has been fixed.

* js/ignore-space-at-eol:
  diff: fix a double off-by-one with --ignore-space-at-eol
  diff: demonstrate a bug with --patience and --ignore-space-at-eol
2016-08-08 14:21:35 -07:00
Junio C Hamano
71076e11cd Merge branch 'jk/push-scrub-url' into maint
"git fetch http://user:pass@host/repo..." scrubbed the userinfo
part, but "git push" didn't.

* jk/push-scrub-url:
  t5541: fix url scrubbing test when GPG is not set
  push: anonymize URL in status output
2016-08-08 14:21:34 -07:00
Junio C Hamano
880b3fee51 Merge branch 'nd/cache-tree-ita' into maint
"git add -N dir/file && git write-tree" produced an incorrect tree
when there are other paths in the same directory that sorts after
"file".

* nd/cache-tree-ita:
  cache-tree: do not generate empty trees as a result of all i-t-a subentries
  cache-tree.c: fix i-t-a entry skipping directory updates sometimes
  test-lib.sh: introduce and use $EMPTY_BLOB
  test-lib.sh: introduce and use $EMPTY_TREE
2016-08-08 14:21:33 -07:00
Junio C Hamano
327b3f8459 Merge branch 'mh/blame-worktree' into maint
"git blame file" allowed the lineage of lines in the uncommitted,
unadded contents of "file" to be inspected, but it refused when
"file" did not appear in the current commit.  When "file" was
created by renaming an existing file (but the change has not been
committed), this restriction was unnecessarily tight.

* mh/blame-worktree:
  t/t8003-blame-corner-cases.sh: Use here documents
  blame: allow to blame paths freshly added to the index
2016-08-08 14:21:32 -07:00
Nguyễn Thái Ngọc Duy
6b7728db81 t7063: work around FreeBSD's lazy mtime update feature
Let's start with the commit message of [1] from freebsd.git [2]

    Sync timestamp changes for inodes of special files to disk as late
    as possible (when the inode is reclaimed).  Temporarily only do
    this if option UFS_LAZYMOD configured and softupdates aren't
    enabled.  UFS_LAZYMOD is intentionally left out of
    /sys/conf/options.

    This is mainly to avoid almost useless disk i/o on battery powered
    machines.  It's silly to write to disk (on the next sync or when
    the inode becomes inactive) just because someone hit a key or
    something wrote to the screen or /dev/null.

    PR:             5577 [3]

The short version of that, in the context of t7063, is that when a
directory is updated, its mtime may be updated later, not
immediately. This can be shown with a simple command sequence

    date; sleep 1; touch abc; rm abc; sleep 10; ls -lTd .

One would expect that the date shown in `ls` would be one second from
`date`, but it's 10 seconds later. If we put another `ls -lTd .` in
front of `sleep 10`, then the date of the last `ls` comes as
expected. The first `ls` somehow forces mtime to be updated.

t7063 is really sensitive to directory mtime. When mtime is too "new",
git code suspects racy timestamps and will not trigger the shortcut in
untracked cache, in t7063.24 and eventually be detected in t7063.27

We have two options thanks to this special FreeBSD feature:

1) Stop supporting untracked cache on FreeBSD. Skip t7063 entirely
   when running on FreeBSD

2) Work around this problem (using the same 'ls' trick) and continue
   to support untracked cache on FreeBSD

I initially wanted to go with 1) because I didn't know the exact
nature of this feature and feared that it would make untracked cache
work unreliably, using the cached version when it should not.

Since the behavior of this thing is clearer now. The picture is not
that bad. If this indeed happens often, untracked cache would assume
racy condition more often and _fall back_ to non-untracked cache code
paths. Which means it may be less effective, but it will not show
wrong things.

This patch goes with option 2.

PS. For those who want to look further in FreeBSD source code, this
flag is now called IN_LAZYMOD. I can see it's effective in ext2 and
ufs. zfs is not affected.

[1] 660e6408e6df99a20dacb070c5e7f9739efdf96d
[2] git://github.com/freebsd/freebsd.git
[3] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=5577

Reported-by: Eric Wong <e@80x24.org>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-04 09:51:42 -07:00
Johannes Sixt
54956df9bc t4130: work around Windows limitation
On Windows, it is already pretty expensive to try to recreate the stat()
data that Git assumes is cheap to obtain. To make things halfway decent
in performance, we even have to skip emulating the inode and to
determine the number of hard links.

This is not a huge problem, usually, as either the size or the mtime or
the ctime are tell-tale enough to say when a file has changed, and even
if not, those changes are typically made after the index file was
written, triggering a rehashing of the files' contents.

The t4130-apply-criss-cross-rename test case, however, requires the
inode to determine that files of equal size were swapped, as renaming
files does not update their mtime. Every once in a while, t4130 fails
on Windows because of this missing piece.

Equal file sizes are not crucial for the test cases, however. Hence,
generate files with different sizes so that there is some property that
the swapped files can be discovered reliably even on Windows.

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-03 08:47:38 -07:00
René Scharfe
02962d3684 use strbuf_addstr() for adding constant strings to a strbuf
Replace uses of strbuf_addf() for adding strings with more lightweight
strbuf_addstr() calls.

In http-push.c it becomes easier to see what's going on without having
to verfiy that the definition of PROPFIND_ALL_REQUEST doesn't contain
any format specifiers.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-01 13:42:10 -07:00
David Aguilar
98f917ed42 difftool: avoid $GIT_DIR and $GIT_WORK_TREE
Environment variables are global and hard to reason about.
Use the `--git-dir` and `--work-tree` arguments when invoking `git`
instead of relying on the environment.

Add a test to ensure that difftool's dir-diff feature works when these
variables are present in the environment.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 14:01:55 -07:00
Heiko Voigt
514dea905a submodule-config: passing name reference for .gitmodule blobs
Commit 959b5455 (submodule: implement a config API for lookup of
.gitmodules values, 2015-08-18) implemented the initial version of the
submodule config cache. During development of that initial version we
extracted the function gitmodule_sha1_from_commit(). During that process
we missed that the strbuf rev was still used in config_from() and now is
left empty. Lets fix this by also returning this string.

This means that now when reading .gitmodules from revisions, the error
messages also contain a reference to the blob they are from.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28 13:05:14 -07:00
Junio C Hamano
1ecc6b291c Merge branch 'ak/lazy-prereq-mktemp' into maint
A test that unconditionally used "mktemp" learned that the command
is not necessarily available everywhere.

* ak/lazy-prereq-mktemp:
  t7610: test for mktemp before test execution
2016-07-28 11:26:03 -07:00
Junio C Hamano
6cbec0da47 Merge branch 'nd/icase' into maint
"git grep -i" has been taught to fold case in non-ascii locales
correctly.

* nd/icase:
  grep.c: reuse "icase" variable
  diffcore-pickaxe: support case insensitive match on non-ascii
  diffcore-pickaxe: Add regcomp_or_die()
  grep/pcre: support utf-8
  gettext: add is_utf8_locale()
  grep/pcre: prepare locale-dependent tables for icase matching
  grep: rewrite an if/else condition to avoid duplicate expression
  grep/icase: avoid kwsset when -F is specified
  grep/icase: avoid kwsset on literal non-ascii strings
  test-regex: expose full regcomp() to the command line
  test-regex: isolate the bug test code
  grep: break down an "if" stmt in preparation for next changes
2016-07-28 11:26:03 -07:00
Junio C Hamano
e5a730a1c3 Merge branch 'jk/test-match-signal' into maint
The test framework learned a new helper test_match_signal to
check an exit code from getting killed by an expected signal.

* jk/test-match-signal:
  t/lib-git-daemon: use test_match_signal
  test_must_fail: use test_match_signal
  t0005: use test_match_signal as appropriate
  tests: factor portable signal check out of t0005
2016-07-28 11:26:00 -07:00
Junio C Hamano
8a81d5f5f8 Merge branch 'js/t3404-grammo-fix' into maint
Grammofix.

* js/t3404-grammo-fix:
  t3404: fix a grammo (commands are ran -> commands are run)
2016-07-28 11:25:59 -07:00
Junio C Hamano
ae8daba601 Merge branch 'ps/rebase-i-auto-unstash-upon-abort' into maint
"git rebase -i --autostash" did not restore the auto-stashed change
when the operation was aborted.

* ps/rebase-i-auto-unstash-upon-abort:
  rebase -i: restore autostash on abort
2016-07-28 11:25:52 -07:00
Junio C Hamano
c12c71fabb Merge branch 'nd/ita-cleanup' into maint
Git does not know what the contents in the index should be for a
path added with "git add -N" yet, so "git grep --cached" should not
show hits (or show lack of hits, with -L) in such a path, but that
logic does not apply to "git grep", i.e. searching in the working
tree files.  But we did so by mistake, which has been corrected.

* nd/ita-cleanup:
  grep: fix grepping for "intent to add" files
  t7810-grep.sh: fix a whitespace inconsistency
  t7810-grep.sh: fix duplicated test name
2016-07-28 11:25:51 -07:00
Junio C Hamano
4966b58f3e Merge branch 'js/find-commit-subject-ignore-leading-blanks' into maint
A helper function that takes the contents of a commit object and
finds its subject line did not ignore leading blank lines, as is
commonly done by other codepaths.  Make it ignore leading blank
lines to match.

* js/find-commit-subject-ignore-leading-blanks:
  reset --hard: skip blank lines when reporting the commit subject
  sequencer: use skip_blank_lines() to find the commit subject
  commit -C: skip blank lines at the beginning of the message
  commit.c: make find_commit_subject() more robust
  pretty: make the skip_blank_lines() function public
2016-07-28 11:25:50 -07:00
Junio C Hamano
053e2fb579 Merge branch 'dg/subtree-rebase-test' into maint
Add a test to specify the desired behaviour that currently is not
available in "git rebase -Xsubtree=...".

* dg/subtree-rebase-test:
  contrib/subtree: Add a test for subtree rebase that loses commits
2016-07-28 11:25:49 -07:00
Jeff King
9d1ca1dac0 t4205: indent here documents
Our usual style in the test scripts is to indent here
documents with tabs, and use "<<-" to strip the tabs. The
result is easier to read.

This old test script did not do so in its inception, and
further tests added onto it followed the local style. Let's
bring it in line with our usual style.

Some of the tests actually care quite a bit about
whitespace, but none of them do so at the beginning of the
line (because they use things like qz_to_tab_space to avoid
depending on the literal whitespace), so we can do a fairly
mechanical conversion.

Most of the here-docs also use interpolation, so they have
been left as "<<-EOF". In a few cases, though, where
interpolation was not in use, I've converted them to
"<<-\EOF" to match our usual "don't interpolate unless you
need to" style.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-27 12:28:16 -07:00
Jeff King
1bd37509ca t4205: drop top-level &&-chaining
The test currently does something like:

  do_one() &&
  do_two() &&
  test_expect_success ...

We generally avoid performing actions at the top-level of
the script (outside of a test_expect block) for two reasons:

  1. The test harness is not checking and reporting if they
     fail.

  2. Their output is not handled correctly (not hidden by
     default, nor shown with "-v").

Using &&-chains seems like it should help with (1), but it
doesn't. If either of the commands fails, we simply skip
running the follow-on test entirely, and the test harness
has no idea.

We can fix this by pushing that setup into its own block.
It _could_ go into the following test block, but since the
result in this case is used by multiple tests, it's more
clear to mark it explicitly as a distinct setup step.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-27 12:27:37 -07:00
Junio C Hamano
8465541e8c grep: further simplify setting the pattern type
When c5c31d33 (grep: move pattern-type bits support to top-level
grep.[ch], 2012-10-03) introduced grep_commit_pattern_type() helper
function, the intention was to allow the users of grep API to having
to fiddle only with .pattern_type_option (which can be set to "fixed",
"basic", "extended", and "pcre"), and then immediately before compiling
the pattern strings for use, call grep_commit_pattern_type() to have
it prepare various bits in the grep_opt structure (like .fixed,
.regflags, etc.).

However, grep_set_pattern_type_option() helper function the grep API
internally uses were left as an external function by mistake.  This
function shouldn't have been made callable by the users of the API.

Later when the grep API was used in revision traversal machinery,
the caller then mistakenly started calling the function around
34a4ae55 (log --grep: use the same helper to set -E/-F options as
"git grep", 2012-10-03), instead of setting the .pattern_type_option
field and letting the grep_commit_pattern_type() to take care of the
details.

This caused an unnecessary bug that made a configured
grep.patternType take precedence over the command line options
(e.g. --basic-regexp, --fixed-strings) in "git log" family of
commands.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-25 09:16:18 -07:00
Jeff King
06dec439a3 diff: do not reuse worktree files that need "clean" conversion
When accessing a blob for a diff, we may try to reuse file
contents in the working tree, under the theory that it is
faster to mmap those file contents than it would be to
extract the content from the object database.

When we have to filter those contents, though, that
assumption does not hold. Even for our internal conversions
like CRLF, we have to allocate and fill a new buffer anyway.
But much worse, for external clean filters we have to exec
an arbitrary script, and we have no idea how expensive it
may be to run.

So let's skip this optimization when conversion into git's
"clean" form is required. This applies whenever the
"want_file" flag is false. When it's true, the caller
actually wants the smudged worktree contents, which the
reused file by definition already has (in fact, this is a
key optimization going the other direction, since reusing
the worktree file there lets us skip smudge filters).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-22 12:31:24 -07:00
Matthieu Moy
b0a61ab23c status: suggest 'git merge --abort' when appropriate
We already suggest 'git rebase --abort' during a conflicted rebase.
Similarly, suggest 'git merge --abort' during conflict resolution on
'git merge'.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-22 10:20:27 -07:00
Jeff King
68f3c079fe t5541: fix url scrubbing test when GPG is not set
When the GPG prereq is not set, we do not run test 34. That
test changes the directory of the test script as a side
effect (something we usually frown on, but which matches the
style of the rest of this script). When test 35 (the
url-scrubbing test) runs, it expects to be in the directory
from test 34. If it's not, the test fails; we are in a
different sub-repo, our test-commit is built on a different
history, and the push becomes a non-fast-forward.

We can fix this by unconditionally moving to the directory
we expect (again, against our usual style but matching how
the rest of the script operates).

As an additional protection, let's also switch from "make a
new commit and push to master" to just "push to a new
branch". We don't care about the branch name; we just want
_some_ ref update to trigger the status output. Pushing to a
new branch is less likely to run into problems with
force-updates, changing the checked-out branch, etc.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-20 15:08:40 -07:00
Mike Hommey
c66b470082 t/t8003-blame-corner-cases.sh: Use here documents
Somehow, this test was using:

{
	echo A
	echo B
} > file

block to feed file contents. This changes those to the form most common
in git test scripts:

cat >file <<-\EOF
A
B
EOF

Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-18 14:33:38 -07:00
Mike Hommey
3b75ee9327 blame: allow to blame paths freshly added to the index
When blaming files, changes in the work tree are taken into account
and displayed as being "Not Committed Yet".

However, when blaming a file that is not known to the current HEAD,
git blame fails with `no such path 'foo' in HEAD`, even when the file
was git add'ed.

Allowing such a blame is useful when the new file added to the index
(not yet committed) was created by renaming an existing file.  It
also is useful when the new file was created from pieces already in
HEAD, moved or copied from other files and blaming with copy
detection (i.e. "-C").

Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-18 14:33:38 -07:00
Nguyễn Thái Ngọc Duy
6d6a782fbf cache-tree: do not generate empty trees as a result of all i-t-a subentries
If a subdirectory contains nothing but i-t-a entries, we generate an
empty tree object and add it to its parent tree. Which is wrong. Such
a subdirectory should not be added.

Note that this has a cascading effect. If subdir 'a/b/c' contains
nothing but i-t-a entries, we ignore it. But then if 'a/b' contains
only (the non-existing) 'a/b/c', then we should ignore 'a/b' while
building 'a' too. And it goes all the way up to top directory.

Noticed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-18 13:45:33 -07:00
Nguyễn Thái Ngọc Duy
c041d54a74 cache-tree.c: fix i-t-a entry skipping directory updates sometimes
Commit 3cf773e (cache-tree: fix writing cache-tree when CE_REMOVE is
present - 2012-12-16) skips i-t-a entries when building trees objects
from the index. Unfortunately it may skip too much.

The code in question checks if an entry is an i-t-a one, then no tree
entry will be written. But it does not take into account that
directories can also be written with the same code. Suppose we have
this in the index.

    a-file
    subdir/file1
    subdir/file2
    subdir/file3
    the-last-file

We write an entry for a-file as normal and move on to subdir/file1,
where we realize the entry name for this level is simply just
"subdir", write down an entry for "subdir" then jump three items ahead
to the-last-file.

That is what happens normally when the first file in subdir is not an
i-t-a entry. If subdir/file1 is an i-t-a, because of the broken
condition in this code, we still think "subdir" is an i-t-a file and
not writing "subdir" down and jump to the-last-file. The result tree
now only has two items: a-file and the-last-file. subdir should be
there too (even though it only records two sub-entries, file2 and
file3).

If the i-t-a entry is subdir/file2 or subdir/file3, this is not a
problem because we jump over them anyway. Which may explain why the
bug is hidden for nearly four years.

Fix it by making sure we only skip i-t-a entries when the entry in
question is actual an index entry, not a directory.

Reported-by: Yuri Kanivetsky <yuri.kanivetsky@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-18 13:45:33 -07:00
Nguyễn Thái Ngọc Duy
378932d3c3 test-lib.sh: introduce and use $EMPTY_BLOB
Similar to $EMPTY_TREE this makes it easier to recognize this special
SHA-1 and change hash later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-18 13:45:32 -07:00
Nguyễn Thái Ngọc Duy
f9e7d9f8c3 test-lib.sh: introduce and use $EMPTY_TREE
This is a special SHA1. Let's keep it at one place, easier to replace
later when the hash change comes, easier to recognize.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-18 13:45:32 -07:00
Junio C Hamano
33eacd3ff4 Merge branch 'jk/tzoffset-fix' into maint
Skip tests that are unrunnable on platforms without 64-bit long
to avoid unnecessary test failures.

* jk/tzoffset-fix:
  t0006: skip "far in the future" test when unsigned long is not long enough
2016-07-15 09:43:42 -07:00
Jeff King
6b9c38e14c t0006: skip "far in the future" test when unsigned long is not long enough
Git's source code refers to timestamps as unsigned longs.  On 32-bit
platforms, as well as on Windows, unsigned long is not large enough
to capture dates that are "absurdly far in the future".

While we can fix this issue properly by replacing unsigned long with
a larger type, we want to be a bit more conservative and just skip
those tests on the maint track.

Signed-off-by: Jeff King <peff@peff.net>
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-15 09:05:53 -07:00
Jeff King
882d49ca5c push: anonymize URL in status output
Commit 47abd85 (fetch: Strip usernames from url's before
storing them, 2009-04-17) taught fetch to anonymize URLs.
The primary purpose there was to avoid sticking passwords in
merge-commit messages, but as a side effect, we also avoid
printing them to stderr.

The push side does not have the merge-commit problem, but it
probably should avoid printing them to stderr. We can reuse
the same anonymizing function.

Note that for this to come up, the credentials would have to
appear either on the command line or in a git config file,
neither of which is particularly secure. So people _should_
be switching to using credential helpers instead, which
makes this problem go away. But that's no excuse not to
improve the situation for people who for whatever reason end
up using credentials embedded in the URL.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-14 09:23:20 -07:00
Nguyễn Thái Ngọc Duy
ec9d224903 fsck: use streaming interface for large blobs in pack
For blobs, we want to make sure the on-disk data is not corrupted
(i.e. can be inflated and produce the expected SHA-1). Blob content is
opaque, there's nothing else inside to check for.

For really large blobs, we may want to avoid unpacking the entire blob
in memory, just to check whether it produces the same SHA-1. On 32-bit
systems, we may not have enough virtual address space for such memory
allocation. And even on 64-bit where it's not a problem, allocating a
lot more memory could result in kicking other parts of systems to swap
file, generating lots of I/O and slowing everything down.

For this particular operation, not unpacking the blob and letting
check_sha1_signature, which supports streaming interface, do the job
is sufficient. check_sha1_signature() is not shown in the diff,
unfortunately. But if will be called when "data_valid && !data" is
false.

We will call the callback function "fn" with NULL as "data". The only
callback of this function is fsck_obj_buffer(), which does not touch
"data" at all if it's a blob.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-13 09:15:29 -07:00
Johannes Schindelin
503e224180 t/test-lib.sh: fix running tests with --valgrind
We forgot to adjust this code path after moving the test helpers to
t/helper/.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-11 12:26:39 -07:00
Johannes Schindelin
044fb190f7 diff: fix a double off-by-one with --ignore-space-at-eol
When comparing two lines, ignoring any whitespace at the end, we first
try to match as many bytes as possible and break out of the loop only
upon mismatch, to let the remainder be handled by the code shared with
the other whitespace-ignoring code paths.

When comparing the bytes, however, we incremented the counters always,
even if the bytes did not match. And because we fall through to  the
space-at-eol handling at that point, it is as if that mismatch never
happened.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-11 11:55:53 -07:00
Johannes Schindelin
a5229cc951 diff: demonstrate a bug with --patience and --ignore-space-at-eol
When a single character is added to a line, the combination of these
two options results in an empty diff.

This bug was noticed and reported by Naja Melan.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-11 11:55:08 -07:00
Junio C Hamano
3a30c14b9b Merge branch 'jc/t2300-setup' into maint
Portability fix for Windows.

* jc/t2300-setup:
  t2300: "git --exec-path" is not usable in $PATH on Windows as-is
2016-07-11 10:44:19 -07:00