Commit Graph

10529 Commits

Author SHA1 Message Date
Junio C Hamano
3e95e47c5d Merge branch 'jk/test-httpd-config-nosystem'
The tests that involve running httpd leaked the system-wide
configuration in /etc/gitconfig to the tested environment.

* jk/test-httpd-config-nosystem:
  t/lib-httpd: pass through GIT_CONFIG_NOSYSTEM env
2016-04-06 11:39:08 -07:00
Junio C Hamano
2f03d174f0 Merge branch 'sb/clone-t57-t56'
Rename bunch of tests on "git clone" for better organization.

* sb/clone-t57-t56:
  clone tests: rename t57* => t56*
2016-04-06 11:39:05 -07:00
Junio C Hamano
1d851b9d30 Merge branch 'ls/p4-map-user'
"git p4" now allows P4 author names to be mapped to Git author
names.

* ls/p4-map-user:
  git-p4: map a P4 user to Git author name and email address
2016-04-06 11:39:05 -07:00
Junio C Hamano
235bdc8c89 Merge branch 'pb/t7502-drop-dup'
Code clean-up.

* pb/t7502-drop-dup:
  t/t7502 : drop duplicate test
2016-04-06 11:39:04 -07:00
Junio C Hamano
e094194f08 Merge branch 'da/mergetool-delete-delete-conflict'
"git mergetool" did not work well with conflicts that both sides
deleted.

* da/mergetool-delete-delete-conflict:
  mergetool: honor tempfile configuration when resolving delete conflicts
  mergetool: support delete/delete conflicts
2016-04-06 11:39:02 -07:00
Junio C Hamano
bdebbeb334 Merge branch 'sb/submodule-parallel-update'
A major part of "git submodule update" has been ported to C to take
advantage of the recently added framework to run download tasks in
parallel.

* sb/submodule-parallel-update:
  clone: allow an explicit argument for parallel submodule clones
  submodule update: expose parallelism to the user
  submodule helper: remove double 'fatal: ' prefix
  git submodule update: have a dedicated helper for cloning
  run_processes_parallel: rename parameters for the callbacks
  run_processes_parallel: treat output of children as byte array
  submodule update: direct error message to stderr
  fetching submodules: respect `submodule.fetchJobs` config option
  submodule-config: drop check against NULL
  submodule-config: keep update strategy around
2016-04-06 11:39:01 -07:00
Junio C Hamano
05bf1cdccd Merge branch 'jk/startup-info'
The startup_info data, which records if we are working inside a
repository (among other things), are now uniformly available to Git
subcommand implementations, and Git avoids attempting to touch
references when we are not in a repository.

* jk/startup-info:
  use setup_git_directory() in test-* programs
  grep: turn off gitlink detection for --no-index
  mailmap: do not resolve blobs in a non-repository
  remote: don't resolve HEAD in non-repository
  setup: set startup_info->have_repository more reliably
  setup: make startup_info available everywhere
2016-04-03 10:29:36 -07:00
Junio C Hamano
7ce0bee4c4 Merge branch 'es/test-gpg-tags'
A test for tags has been restructured so that more parts of it can
easily be run on a platform without a working GnuPG.

* es/test-gpg-tags:
  t6302: skip only signed tags rather than all tests when GPG is missing
  t6302: also test annotated in addition to signed tags
  t6302: normalize names and descriptions of signed tags
  lib-gpg: drop unnecessary "missing GPG" warning
2016-04-03 10:29:35 -07:00
Junio C Hamano
087f171f14 Merge branch 'jk/getwholeline-getdelim-empty'
strbuf_getwholeline() did not NUL-terminate the buffer on certain
corner cases in its error codepath.

* jk/getwholeline-getdelim-empty:
  strbuf_getwholeline: NUL-terminate getdelim buffer on error
2016-04-03 10:29:34 -07:00
Junio C Hamano
9081cffd1e Merge branch 'gf/fetch-pack-direct-object-fetch'
Fetching of history by naming a commit object name directly didn't
work across remote-curl transport.

* gf/fetch-pack-direct-object-fetch:
  fetch-pack: update the documentation for "<refs>..." arguments
  fetch-pack: fix object_id of exact sha1
2016-04-03 10:29:29 -07:00
Junio C Hamano
d4a22303ab Merge branch 'jc/maint-index-pack-keep'
"git index-pack --keep[=<msg>] pack-$name.pack" simply did not work.

* jc/maint-index-pack-keep:
  index-pack: correct --keep[=<msg>]
2016-04-03 10:29:29 -07:00
Junio C Hamano
fbebb5cd07 Merge branch 'jk/rev-parse-local-env-vars'
The "--local-env-vars" and "--resolve-git-dir" options of "git
rev-parse" failed to work outside a repository when the command's
option parsing was rewritten in 1.8.5 era.

* jk/rev-parse-local-env-vars:
  rev-parse: let some options run outside repository
  t1515: add tests for rev-parse out-of-repo helpers
2016-04-03 10:29:27 -07:00
Junio C Hamano
c832cef8aa Merge branch 'jk/config-get-urlmatch'
"git config --get-urlmatch", unlike other variants of the "git
config --get" family, did not signal error with its exit status
when there was no matching configuration.

* jk/config-get-urlmatch:
  Documentation/git-config: fix --get-all description
  Documentation/git-config: use bulleted list for exit codes
  config: fail if --get-urlmatch finds no value
2016-04-03 10:29:26 -07:00
Junio C Hamano
1b68962b29 Merge branch 'jk/credential-clear-config'
The credential.helper configuration variable is cumulative and
there is no good way to override it from the command line.  As
a special case, giving an empty string as its value now serves
as the signal to clear the values specified in various files.

* jk/credential-clear-config:
  credential: let empty credential specs reset helper list
2016-04-03 10:29:24 -07:00
Junio C Hamano
5d2a30d7d8 Merge branch 'mm/diff-renames-default'
The end-user facing Porcelain level commands like "diff" and "log"
now enables the rename detection by default.

* mm/diff-renames-default:
  diff: activate diff.renames by default
  log: introduce init_log_defaults()
  t: add tests for diff.renames (true/false/unset)
  t4001-diff-rename: wrap file creations in a test
  Documentation/diff-config: fix description of diff.renames
2016-04-03 10:29:22 -07:00
Junio C Hamano
269fe3aed4 Merge branch 'js/mingw-tests-2.8'
* js/mingw-tests-2.8:
  mingw: skip some tests in t9115 due to file name issues
  t1300: fix the new --show-origin tests on Windows
  t1300-repo-config: make it resilient to being run via 'sh -x'
  config --show-origin: report paths with forward slashes
2016-03-24 12:27:58 -07:00
Junio C Hamano
2a4c8c36a7 Merge branch 'sb/submodule-module-list-pathspec-fix'
A fix for a small regression in "module_list" helper that was
rewritten in C (also applies to 2.7.x).

* sb/submodule-module-list-pathspec-fix:
  submodule: fix regression for deinit without submodules
2016-03-24 12:27:13 -07:00
Johannes Schindelin
8257d3b458 mingw: skip some tests in t9115 due to file name issues
These two tests wanted to write file names which are incompatible with
Windows' file naming rules (even if they pass using Cygwin due to
Cygwin's magic path mangling).

While at it, skip the same tests also on MacOSX/HFS, as pointed out by
Torsten Bögershausen.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-23 10:03:37 -07:00
Johannes Schindelin
45bf32971c t1300: fix the new --show-origin tests on Windows
On Windows, we have that funny situation where the test script can refer
to POSIX paths because it runs in a shell that uses a POSIX emulation
layer ("MSYS2 runtime"). Yet, git.exe does *not* understand POSIX paths
at all but only pure Windows paths.

So let's just convert the POSIX paths to Windows paths before passing
them on to Git, using `pwd` (which is already modified on Windows to
output Windows paths).

While fixing the new tests on Windows, we also have to exclude the tests
that want to write a file with a name that is illegal on Windows
(unfortunately, there is more than one test trying to make use of that
file).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-23 10:02:46 -07:00
Johannes Schindelin
2ec20212c5 t1300-repo-config: make it resilient to being run via 'sh -x'
One way to diagnose broken regression tests is to run the test
script using 'sh -x t... -i -v' to find out which call actually
demonstrates the symptom.

Hence it is pretty counterproductive if the test script behaves
differently when being run via 'sh -x', in particular when using
test_cmp or test_i18ncmp on redirected stderr.  A more recent way
"sh tXXXX -i -v -x" has the same issue.

So let's use test_i18ngrep (as suggested by Jonathan Nieder) instead of
test_cmp/test_i18ncmp to verify that stderr looks as expected.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-23 09:59:21 -07:00
Stefan Beller
84ba959bbd submodule: fix regression for deinit without submodules
Per Cederqvist wrote:
> It used to be possible to run
>
>    git submodule deinit -f .
>
> to remove any submodules, no matter how many submodules you had.  That
> is no longer possible in projects that don't have any submodules at
> all.  The command will fail with:
>
>     error: pathspec '.' did not match any file(s) known to git.

This regression was introduced in 74703a1e4d (submodule: rewrite
`module_list` shell function in C, 2015-09-02), as we changed the
order of checking in new module listing to first check whether it is
a gitlin before feeding it to match_pathspec().  It used to be that
a pathspec that does not match any path were diagnosed as an error,
but the new code complains for a pathspec that does not match any
submodule path.

Arguably the new behaviour may give us a better diagnosis, but that
is inconsistent with the suggestion "deinit" gives, and also this
was an unintended accident.  The new behaviour hopefully can be
redesigned and implemented better in future releases, but for now,
switch these two checks to restore the same behavior as before.  In
an empty repository, giving the pathspec '.' will still get the same
"did not match" error, but that is the same bug we had before 1.7.0.

Reported-by: Per Cederqvist <cederp@opera.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-22 19:26:43 -07:00
Jeff King
1fad5033ad t/lib-httpd: pass through GIT_CONFIG_NOSYSTEM env
We set GIT_CONFIG_NOSYSTEM in our test scripts so that we do
not accidentally read /etc/gitconfig and have it influence
the outcome of the tests. But when running smart-http tests,
Apache will clean the environment, including this variable,
and the "server" side of our http operations will read it.

You can see this breakage by doing something like:

  make
  ./git config --system http.getanyfile false
  make test

which will cause t5561 to fail when it tests the
fallback-to-dumb operation.

We can fix this by instructing Apache to pass through the
variable. Unlike with other variables (e.g., 89c57ab3's
GIT_TRACE), we don't need to set a dummy value to prevent
warnings from Apache. test-lib.sh already makes sure that
GIT_CONFIG_NOSYSTEM is set and exported.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-18 15:37:58 -07:00
Junio C Hamano
5cee349370 Revert "Merge branch 'nd/exclusion-regression-fix'"
This reverts commit 5e57f9c3df, reversing
changes made to e79112d210.

We will be postponing nd/exclusion-regression-fix topic to later
cycle.
2016-03-18 11:06:15 -07:00
Eric Wong
b557165311 git-svn: fix URL canonicalization during init w/ SVN 1.7+
URL canonicalization when full URLs are passed became broken
when using SVN::_Core::svn_dirent_canonicalize under SVN 1.7.

Ensure we canonicalize paths and URLs with appropriate functions
for each type from now on as the path/URL-agnostic
SVN::_Core::svn_path_canonicalize function is deprecated in SVN.

Tested with the following commands:

  git svn init -T svn://svn.code.sf.net/p/squirrelmail/code/trunk
  git svn init -b svn://svn.code.sf.net/p/squirrelmail/code/branches

Reported-by: Adam Dinwoodie <adam@dinwoodie.org>
  http://mid.gmane.org/20160315162344.GM29016@dinwoodie.org
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2016-03-16 20:16:23 +00:00
Adam Dinwoodie
4be4d55063 t9117: test specifying full url to git svn init -T
According to the documentation, full URLs can be specified in the `-T`
argument to `git svn init`.  However, the canonicalization of such
arguments squashes together consecutive "/"s, which unsurprisingly
breaks http://, svn://, etc URLs.  Add a failing test case to provide
evidence of that.

On systems where Subversion provides svn_path_canonicalize but not
svn_dirent_canonicalize (Subversion 1.6 and earlier?), this test passes,
as svn_path_canonicalize doesn't mangle the consecutive "/"s.

[ew: fixed whitespace]

Signed-off-by: Adam Dinwoodie <adam@dinwoodie.org>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2016-03-16 19:24:37 +00:00
Stefan Beller
8fbb03a180 clone tests: rename t57* => t56*
When trying to find a good spot for testing clone with submodules, I
got confused where to add a new test file. There are both tests in t560*
as well as t57* both testing the clone command. t/README claims the
second digit is to indicate the command, which is inconsistent to the
current naming structure.

Rename all t57* tests to be in t56* to follow the pattern of the digits
as laid out in t/README.

It would have been less work to rename t56* => t57* because there are less
files, but the tests in t56* look more basic and I assumed the higher the
last digits the more complicated niche details are tested, so with the patch
now it looks more in order to me.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-16 09:41:07 -07:00
Lars Schneider
10d08a149d git-p4: map a P4 user to Git author name and email address
Map a P4 user to a specific name and email address in Git with the
"git-p4.mapUser" config. The config value must be a string adhering
to the format "p4user = First Lastname <email@address.com>".

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Reviewed-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-15 11:45:13 -07:00
Eric Wong
62335bbbc7 git-svn: shorten glob error message
Error messages should attempt to fit within the confines of
an 80-column terminal to avoid compatibility and accessibility
problems.  Furthermore the word "directories" can be misleading
when used in the context of git refnames.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2016-03-15 01:35:39 +00:00
Victor Leschuk
e4e5dd94e6 git-svn: loosen config globs limitations
Expand the area of globs applicability for branches and tags
in git-svn. It is now possible to use globs like 'a*e', or 'release_*'.
This allows users to avoid long lines in config like:

	branches = branches/{release_20,release_21,release_22,...}

In favor of:

	branches = branches/release_*

[ew: amended commit message, minor formatting and style fixes]

Signed-off-by: Victor Leschuk <vleschuk@accesssoftek.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2016-03-15 01:35:38 +00:00
Pranit Bauva
dde7891094 t/t7502 : drop duplicate test
This extra test was introduced erroneously by
f9c0181 (t7502: test commit.status, --status and
--no-status, 2010-01-13)

Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-11 12:42:26 -08:00
David Aguilar
a2986045e3 mergetool: honor tempfile configuration when resolving delete conflicts
Teach resolve_deleted_merge() to honor the mergetool.keepBackup and
mergetool.keepTemporaries configuration knobs.

This ensures that the worktree is kept pristine when resolving deletion
conflicts with the variables both set to false.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-10 14:07:57 -08:00
David Aguilar
faaab8d571 mergetool: support delete/delete conflicts
If two branches each move a file into different directories then
mergetool will fail because it assumes that the file being merged, and
its parent directory, are present in the worktree.

Create the merge file's parent directory to allow using the
deleted base version of the file for merge resolution when
encountering a delete/delete conflict.

The end result is that a delete/delete conflict is presented for the
user to resolve.

Reported-by: Joe Einertson <joe@kidblog.org>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-10 14:07:13 -08:00
Junio C Hamano
80047fa084 Merge branch 'jk/pack-idx-corruption-safety' into maint
The code to read the pack data using the offsets stored in the pack
idx file has been made more carefully check the validity of the
data in the idx.

* jk/pack-idx-corruption-safety:
  sha1_file.c: mark strings for translation
  use_pack: handle signed off_t overflow
  nth_packed_object_offset: bounds-check extended offset
  t5313: test bounds-checks of corrupted/malicious pack/idx files
2016-03-10 11:13:46 -08:00
Junio C Hamano
0e58b47d15 Merge branch 'js/config-set-in-non-repository' into maint
"git config section.var value" to set a value in per-repository
configuration file failed when it was run outside any repository,
but didn't say the reason correctly.

* js/config-set-in-non-repository:
  git config: report when trying to modify a non-existing repo config
2016-03-10 11:13:45 -08:00
Junio C Hamano
1191d606bb Merge branch 'sb/submodule-module-list-fix' into maint
A helper function "git submodule" uses since v2.7.0 to list the
modules that match the pathspec argument given to its subcommands
(e.g. "submodule add <repo> <path>") has been fixed.

* sb/submodule-module-list-fix:
  submodule helper list: respect correct path prefix
2016-03-10 11:13:45 -08:00
Junio C Hamano
7f18fadcbc Merge branch 'jk/grep-binary-workaround-in-test' into maint
Recent versions of GNU grep are pickier when their input contains
arbitrary binary data, which some of our tests uses.  Rewrite the
tests to sidestep the problem.

* jk/grep-binary-workaround-in-test:
  t9200: avoid grep on non-ASCII data
  t8005: avoid grep on non-ASCII data
2016-03-10 11:13:45 -08:00
Junio C Hamano
9c17ccaa49 Merge branch 'nd/git-common-dir-fix' into maint
"git rev-parse --git-common-dir" used in the worktree feature
misbehaved when run from a subdirectory.

* nd/git-common-dir-fix:
  rev-parse: take prefix into account in --git-common-dir
2016-03-10 11:13:40 -08:00
Junio C Hamano
8834ea375a Merge branch 'nd/dwim-wildcards-as-pathspecs' into maint
"git show 'HEAD:Foo[BAR]Baz'" did not interpret the argument as a
rev, i.e. the object named by the the pathname with wildcard
characters in a tree object.

* nd/dwim-wildcards-as-pathspecs:
  get_sha1: don't die() on bogus search strings
  check_filename: tighten dwim-wildcard ambiguity
  checkout: reorder check_filename conditional
2016-03-10 11:13:39 -08:00
Junio C Hamano
fbef03d6ab Merge branch 'jk/epipe-in-async' into maint
Handling of errors while writing into our internal asynchronous
process has been made more robust, which reduces flakiness in our
tests.

* jk/epipe-in-async:
  t5504: handle expected output from SIGPIPE death
  test_must_fail: report number of unexpected signal
  fetch-pack: ignore SIGPIPE in sideband demuxer
  write_or_die: handle EPIPE in async threads
2016-03-10 11:13:38 -08:00
Junio C Hamano
2d5ff66c13 Merge branch 'ps/config-error' into maint
Many codepaths forget to check return value from git_config_set();
the function is made to die() to make sure we do not proceed when
setting a configuration variable failed.

* ps/config-error:
  config: rename git_config_set_or_die to git_config_set
  config: rename git_config_set to git_config_set_gently
  compat: die when unable to set core.precomposeunicode
  sequencer: die on config error when saving replay opts
  init-db: die on config errors when initializing empty repo
  clone: die on config error in cmd_clone
  remote: die on config error when manipulating remotes
  remote: die on config error when setting/adding branches
  remote: die on config error when setting URL
  submodule--helper: die on config error when cloning module
  submodule: die on config error when linking modules
  branch: die on config error when editing branch description
  branch: die on config error when unsetting upstream
  branch: report errors in tracking branch setup
  config: introduce set_or_die wrappers
2016-03-10 11:13:38 -08:00
Junio C Hamano
9bb71036f3 Merge branch 'mg/work-tree-tests' into maint
Traditionally, the tests that try commands that work on the
contents in the working tree were named with "worktree" in their
filenames, but with the recent addition of "git worktree"
subcommand, whose tests are also named similarly, it has become
harder to tell them apart.  The traditional tests have been renamed
to use "work-tree" instead in an attempt to differentiate them.

* mg/work-tree-tests:
  tests: rename work-tree tests to *work-tree*
2016-03-10 11:13:38 -08:00
Junio C Hamano
68846a92ea Merge branch 'js/close-packs-before-gc'
A small future-proofing of a test added recently.

* js/close-packs-before-gc:
  t5510: do not leave changed cwd
2016-03-10 10:56:42 -08:00
Jeff King
85975c0c7f grep: turn off gitlink detection for --no-index
If we are running "git grep --no-index" outside of a git
repository, we behave roughly like "grep -r", examining all
files in the current directory and its subdirectories.
However, because we use fill_directory() to do the
recursion, it will skip over any directories which look like
sub-repositories.

For a normal git operation (like "git grep" in a repository)
this makes sense; we do not want to cross the boundary out
of our current repository into a submodule. But for
"--no-index" without a repository, we should look at all
files, including embedded repositories.

There is one exception, though: we probably should _not_
descend into ".git" directories. Doing so is inefficient and
unlikely to turn up useful hits.

This patch drops our use of dir.c's gitlink-detection, but
we do still avoid ".git". That makes us more like tools such
as "ack" or "ag", which also know to avoid cruft in .git.

As a bonus, this also drops our usage of the ref code
when we are outside of a repository, making the transition
to pluggable ref backends cleaner.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-07 12:27:28 -08:00
Eric Sunshine
618310a3df t6302: skip only signed tags rather than all tests when GPG is missing
The primary purpose of these tests is to check filtering, sorting, and
formatting behavior of git-for-each-ref, so it is unfortunate that the
entire test script is skipped when GPG is not present. Rather than
skipping all tests, let's instead just skip testing against signed tags
when GPG is missing.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-06 18:51:38 -08:00
Eric Sunshine
7bc734eed2 t6302: also test annotated in addition to signed tags
It is conceivable, if not highly plausible, that a change to the
git-for-each-ref code that does the filtering and formatting can become
buggy because a payload with GPG signature looks somewhat different from
what is in an annotated but not signed tag. Thus, let's test unsigned
tags, as well.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-06 18:51:23 -08:00
Eric Sunshine
ef93c7dbce t6302: normalize names and descriptions of signed tags
An upcoming patch will increase test coverage by testing annotated but
not signed tags, as well, so normalize names and descriptions of signed
tags to make it easy to give the upcoming unsigned tags similarly
patterned names and descriptions.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-06 18:50:35 -08:00
Eric Sunshine
f9e9c0d104 lib-gpg: drop unnecessary "missing GPG" warning
When 37d3e85 (t7004: factor out gpg setup, 2011-09-07) pulled gpg
detection code out of t7004-tag.sh and turned it into a standard test
prerequisite, it added an unconditional "missing GPG" warning when gpg
is not detected.

However, this is redundant since all tests which require GPG already
warn via either 'test_expect_success GPG' ("skipping: missing GPG") on a
test-by-test basis, or when skipping all tests in a script ("skipping
all foobar tests; missing GPG").  Consequently, the extra warning from
lib-gpg.sh is unnecessary, so retire it.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-06 18:50:32 -08:00
Jeff King
46c3cd44d7 setup: make startup_info available everywhere
Commit a60645f (setup: remember whether repository was
found, 2010-08-05) introduced the startup_info structure,
which records some parts of the setup_git_directory()
process (notably, whether we actually found a repository or
not).

One of the uses of this data is for functions to behave
appropriately based on whether we are in a repo. But the
startup_info struct is just a pointer to storage provided by
the main program, and the only program that sets it up is
the git.c wrapper. Thus builtins have access to
startup_info, but externally linked programs do not.

Worse, library code which is accessible from both has to be
careful about accessing startup_info. This can be used to
trigger a die("BUG") via get_sha1():

	$ git fast-import <<-\EOF
	tag foo
	from HEAD:./whatever
	EOF

	fatal: BUG: startup_info struct is not initialized.

Obviously that's fairly nonsensical input to feed to
fast-import, but we should never hit a die("BUG"). And there
may be other ways to trigger it if other non-builtins
resolve sha1s.

So let's point the storage for startup_info to a static
variable in setup.c, making it available to all users of the
library code. We _could_ turn startup_info into a regular
extern struct, but doing so would mean tweaking all of the
existing use sites. So let's leave the pointer indirection
in place.  We can, however, drop any checks for NULL, as
they will always be false (and likewise, we can drop the
test covering this case, which was a rather artificial
situation using one of the test-* programs).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-06 17:17:37 -08:00
Jeff King
b70904306f strbuf_getwholeline: NUL-terminate getdelim buffer on error
Commit 0cc30e0 (strbuf_getwholeline: use getdelim if it is
available, 2015-04-16) tries to clean up after getdelim()
returns EOF, but gets one case wrong, which can lead in some
obscure cases to us reading uninitialized memory.

After getdelim() returns -1, we re-initialize the strbuf
only if sb->buf is NULL. The thinking was that either:

  1. We fed an existing allocated buffer to getdelim(), and
     at most it would have realloc'd, leaving our NUL in
     place.

  2. We didn't have a buffer to feed, so we gave getdelim()
     NULL; sb->buf will remain NULL, and we just want to
     restore the empty slopbuf.

But that second case isn't quite right. getdelim() may
allocate a buffer, write nothing into it, and then return
EOF. The resulting strbuf rightfully has sb->len set to "0",
but is missing the NUL terminator in the first byte.

Most call-sites are fine with this. They see the EOF and
don't bother looking at the strbuf. Or they notice that
sb->len is empty, and don't look at the contents. But
there's at least one case that does neither, and relies on
parsing the resulting (possibly zero-length) string:
fast-import. You can see this in action with the new test
(though we probably only notice failure there when run with
--valgrind or ASAN).

We can fix this by unconditionally resetting the strbuf when
we have a buffer after getdelim(). That fixes case 2 above.
Case 1 is probably already fine in practice, but it does not
hurt for us to re-assert our invariants (especially because
we are relying on whatever getdelim() happens to do, which
may vary from platform to platform). Our fix covers that
case, too.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-05 10:57:37 -08:00
Junio C Hamano
28ab768afa Merge branch 'nd/clear-gitenv-upon-use-of-alias'
Hotfix for a test breakage made between 2.7 and 'master'.

* nd/clear-gitenv-upon-use-of-alias:
  t0001: fix GIT_* environment variable check under --valgrind
2016-03-04 13:46:44 -08:00