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Ævar Arnfjörð Bjarmason de8bada2bf wildmatch test: create & test files on disk in addition to in-memory
There has never been any full roundtrip testing of what git-ls-files
and other commands that use wildmatch() actually do, rather we've been
satisfied with just testing the underlying C function.

Due to git-ls-files and friends having their own codepaths before they
call wildmatch() there's sometimes differences in the behavior between
the two. Even when we test for those (as with [1]), there was no one
place where you can review how these two modes differ.

Now there is. We now attempt to create a file called $haystack and
match $needle against it for each pair of $needle and $haystack that
we were passing to test-wildmatch.

If we can't create the file we skip the test. This ensures that we can
run this on all platforms and not maintain some infinitely growing
whitelist of e.g. platforms that don't support certain characters in
filenames.

A notable exception to this is Windows, where due to the reasons
explained in [2] the shellscript emulation layer might fake the
creation of a file such as "*", and "test -e" for it will succeed
since it just got created with some character that maps to "*", but
git ls-files won't be fooled by this.

Thus we need to skip creating certain filenames entirely on Windows,
the list here might be overly aggressive. I don't have access to a
Windows system to test this.

As a result of doing these tests we can now see the cases where these
two ways of testing wildmatch differ:

 * Creating a file called 'a[]b' and running ls-files 'a[]b' will show
   that file, but wildmatch("a[]b", "a[]b") will not match

 * wildmatch() won't match a file called \ against \, but ls-files
   will.

 * `git --glob-pathspecs ls-files 'foo**'` will match a file
   'foo/bba/arr', but wildmatch won't, however pathmatch will.

   This seems like a bug to me, the two are otherwise equivalent as
   these tests show.

This also reveals the case discussed in [1], since 2.16.0 '' is now an
error as far as ls-files is concerned, but wildmatch() itself happily
accepts it.

1. 9e4e8a64c2 ("pathspec: die on empty strings as pathspec",
   2017-06-06)

2. nycvar.QRO.7.76.6.1801052133380.1337@wbunaarf-fpuvaqryva.tvgsbejvaqbjf.bet
   (https://public-inbox.org/git/?q=nycvar.QRO.7.76.6.1801052133380.1337%40wbunaarf-fpuvaqryva.tvgsbejvaqbjf.bet)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-30 14:04:01 -08:00
.github
Documentation Merge branch 'cn/diff-indent-no-longer-is-experimental' 2017-11-06 13:11:27 +09:00
block-sha1
builtin Merge branch 'bw/grep-recurse-submodules' 2017-11-06 13:11:27 +09:00
ci travis-ci: fix "skip_branch_tip_with_tag()" string comparison 2017-09-22 10:58:29 +09:00
compat Merge branch 'rb/compat-poll-fix' into maint 2017-10-18 14:19:05 +09:00
contrib Merge branch 'tb/complete-describe' into maint 2017-10-18 14:19:14 +09:00
ewah
git-gui
gitk-git
gitweb
mergetools
perl
po l10n: Update Catalan translation 2017-10-29 10:04:12 +08:00
ppc
refs Merge branch 'mh/ref-locking-fix' 2017-10-26 12:29:23 +09:00
sha1collisiondetection@19d97bf5af
sha1dc
t wildmatch test: create & test files on disk in addition to in-memory 2018-01-30 14:04:01 -08:00
templates
vcs-svn
xdiff cleanup: fix possible overflow errors in binary search 2017-10-10 08:57:24 +09:00
.clang-format clang-format: add a comment about the meaning/status of the 2017-10-02 13:17:48 +09:00
.gitattributes
.gitignore
.gitmodules
.mailmap .mailmap: normalize name for René Scharfe 2017-10-06 11:31:41 +09:00
.travis.yml
.tsan-suppressions
COPYING
GIT-VERSION-GEN Git 2.15 2017-10-30 14:00:44 +09:00
INSTALL
LGPL-2.1
Makefile Merge branch 'jt/oidmap' 2017-10-11 14:52:22 +09:00
README.md
RelNotes Prepare for 2.14.3 2017-10-18 14:24:09 +09:00
abspath.c real_path: clarify return value ownership 2017-09-27 09:13:47 +09:00
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c apply: remove `newfd` from `struct apply_state` 2017-10-06 10:07:18 +09:00
apply.h apply: remove `newfd` from `struct apply_state` 2017-10-06 10:07:18 +09:00
archive-tar.c
archive-zip.c
archive.c Merge branch 'rs/archive-excluded-directory' 2017-09-25 15:24:07 +09:00
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
base85.c
bisect.c Merge branch 'ma/leakplugs' 2017-09-29 11:23:43 +09:00
bisect.h
blame.c
blame.h
blob.c
blob.h
branch.c Merge branch 'nd/worktree-kill-parse-ref' into maint 2017-10-23 14:14:16 +09:00
branch.h
builtin.h
bulk-checkin.c distinguish error versus short read from read_in_full() 2017-09-27 15:45:24 +09:00
bulk-checkin.h
bundle.c leak_pending: use `object_array_clear()`, not `free()` 2017-09-24 10:05:57 +09:00
bundle.h
cache-tree.c Merge branch 'ma/lockfile-fixes' 2017-11-06 13:11:21 +09:00
cache-tree.h
cache.h Merge branch 'ma/lockfile-fixes' 2017-11-06 13:11:21 +09:00
check-builtins.sh
check-racy.c
check_bindir
color.c Merge branch 'jk/ref-filter-colors-fix' 2017-10-18 10:19:08 +09:00
color.h
column.c column: do not include pager.c 2017-10-24 10:19:06 +09:00
column.h
combine-diff.c
command-list.txt
commit-slab.h commit-slab.h: avoid -Wsign-compare warnings 2017-09-22 13:00:36 +09:00
commit.c Merge branch 'ma/leakplugs' 2017-09-29 11:23:43 +09:00
commit.h
common-main.c
config.c Merge branch 'ma/lockfile-fixes' 2017-11-06 13:11:21 +09:00
config.h Merge branch 'sd/branch-copy' 2017-10-03 15:42:48 +09:00
config.mak.in
config.mak.uname packed_ref_cache: keep the `packed-refs` file mmapped if possible 2017-09-25 18:02:45 +09:00
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c Merge branch 'ma/ts-cleanups' into maint 2017-10-23 14:19:02 +09:00
convert.h
copy.c
credential-cache--daemon.c
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c prefer "!=" when checking read_in_full() result 2017-09-27 15:45:24 +09:00
csum-file.h
ctype.c
daemon.c
date.c
decorate.c
decorate.h
delta.h
diff-delta.c Merge branch 'mk/diff-delta-avoid-large-offset' 2017-09-28 14:47:56 +09:00
diff-lib.c object_array: use `object_array_clear()`, not `free()` 2017-09-24 10:06:01 +09:00
diff-no-index.c
diff.c diff.c: get rid of duplicate implementation 2017-10-26 11:23:32 +09:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'js/submodule-in-excluded' 2017-11-06 13:11:26 +09:00
dir.h
editor.c
entry.c Merge branch 'ls/filter-process-delayed' 2017-10-11 14:52:24 +09:00
environment.c Merge branch 'jk/no-optional-locks' 2017-10-03 15:42:49 +09:00
exec_cmd.c
exec_cmd.h
fast-import.c Merge branch 'jk/write-in-full-fix' into maint 2017-10-23 14:37:22 +09:00
fetch-pack.c oidmap: map with OID as key 2017-10-01 17:18:03 +09:00
fetch-pack.h
fmt-merge-msg.h
fsck.c Merge branch 'rs/fsck-null-return-from-lookup' 2017-10-11 14:52:23 +09:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'rj/no-sign-compare' 2017-09-29 11:23:42 +09:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh Merge branch 'dg/filter-branch-filter-order-doc' 2017-10-19 14:45:45 +09:00
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'js/rebase-i-final' 2017-10-03 15:42:47 +09:00
git-rebase--merge.sh
git-rebase.sh Merge branch 'bc/rev-parse-parseopt-fix' 2017-10-03 15:42:47 +09:00
git-remote-testgit.sh
git-request-pull.sh request-pull: capitalise "Git" to make it a proper noun 2017-10-03 13:11:57 +09:00
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh
git-submodule.sh
git-svn.perl
git-web--browse.sh
git.c Merge branch 'jk/no-optional-locks' 2017-10-03 15:42:49 +09:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c graph: use strbuf_addchars() to add spaces 2017-10-02 13:14:07 +09:00
graph.h
grep.c
grep.h
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c Merge branch 'rs/resolve-ref-optional-result' 2017-09-28 14:47:56 +09:00
http-fetch.c
http-push.c Merge branch 'tg/memfixes' 2017-10-07 16:27:54 +09:00
http-walker.c
http.c curl_trace(): eliminate switch fallthrough 2017-09-22 12:49:55 +09:00
http.h
ident.c
imap-send.c
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c ALLOC_GROW: avoid -Wsign-compare warnings 2017-09-22 13:21:11 +09:00
line-log.h ALLOC_GROW: avoid -Wsign-compare warnings 2017-09-22 13:21:11 +09:00
line-range.c
line-range.h
list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h lockfile: fix documentation on `close_lock_file_gently()` 2017-10-06 10:07:17 +09:00
log-tree.c log: handle broken HEAD in decoration check 2017-10-21 21:29:37 +09:00
log-tree.h
mailinfo.c Merge branch 'rs/mailinfo-qp-decode-fix' into maint 2017-10-18 14:19:03 +09:00
mailinfo.h
mailmap.c
mailmap.h
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c treewide: prefer lockfiles on the stack 2017-10-06 10:07:17 +09:00
merge-recursive.h
merge.c read-cache: leave lock in right state in `write_locked_index()` 2017-10-07 10:20:56 +09:00
mergesort.c
mergesort.h
mru.c
mru.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c notes-merge: drop dead zero-write code 2017-09-26 12:55:59 +09:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object.c object_array: add and use `object_array_pop()` 2017-09-24 10:06:04 +09:00
object.h object_array: add and use `object_array_pop()` 2017-09-24 10:06:04 +09:00
oidmap.c oidmap: map with OID as key 2017-10-01 17:18:03 +09:00
oidmap.h oidmap: map with OID as key 2017-10-01 17:18:03 +09:00
oidset.c oidmap: map with OID as key 2017-10-01 17:18:03 +09:00
oidset.h oidmap: map with OID as key 2017-10-01 17:18:03 +09:00
pack-bitmap-write.c pack-bitmap[-write]: use `object_array_clear()`, don't leak 2017-09-24 10:06:08 +09:00
pack-bitmap.c Merge branch 'ma/leakplugs' 2017-09-29 11:23:43 +09:00
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c avoid looking at errno for short read_in_full() returns 2017-09-27 15:45:24 +09:00
pack.h
packfile.c cleanup: fix possible overflow errors in binary search 2017-10-10 08:57:24 +09:00
packfile.h
pager.c
parse-options-cb.c
parse-options.c parse-options: only insert newline in help text if needed 2017-09-25 14:35:53 +09:00
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'ao/path-use-xmalloc' 2017-10-28 10:18:40 +09:00
path.h
pathspec.c Merge branch 'ex/deprecate-empty-pathspec-as-match-all' 2017-11-06 13:11:29 +09:00
pathspec.h pathspec doc: parse_pathspec does not maintain references to args 2017-09-21 14:05:00 +09:00
pkt-line.c Merge branch 'jk/write-in-full-fix' into maint 2017-10-23 14:37:22 +09:00
pkt-line.h
preload-index.c
pretty.c pretty.c: delimit "%(trailers)" arguments with "," 2017-10-02 09:22:52 +09:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c consistently use "fallthrough" comments in switches 2017-09-22 12:49:57 +09:00
quote.h
reachable.c
reachable.h
read-cache.c read_cache: roll back lock in `update_index_if_able()` 2017-10-07 10:20:56 +09:00
ref-filter.c Merge branch 'tb/show-trailers-in-ref-filter' 2017-10-11 14:52:22 +09:00
ref-filter.h
reflog-walk.c refs: pass NULL to resolve_refdup() if hash is not needed 2017-10-01 17:27:14 +09:00
reflog-walk.h
refs.c Merge branch 'jk/write-in-full-fix' into maint 2017-10-23 14:37:22 +09:00
refs.h Merge branch 'sd/branch-copy' 2017-10-03 15:42:48 +09:00
remote-curl.c
remote-testsvn.c
remote.c refs: pass NULL to resolve_ref_unsafe() if hash is not needed 2017-09-24 10:18:21 +09:00
remote.h
replace_object.c
repository.c repository: use FREE_AND_NULL 2017-10-02 13:15:59 +09:00
repository.h
rerere.c Merge branch 'jk/write-in-full-fix' 2017-09-25 15:24:06 +09:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'rj/no-sign-compare' 2017-09-29 11:23:42 +09:00
revision.h Merge branch 'ma/leakplugs' 2017-09-29 11:23:43 +09:00
run-command.c run-command: use ALLOC_ARRAY 2017-10-03 08:42:57 +09:00
run-command.h
send-pack.c consistently use "fallthrough" comments in switches 2017-09-22 12:49:57 +09:00
send-pack.h
sequencer.c Merge branch 'jk/rebase-i-exec-gitdir-fix' 2017-11-06 13:11:28 +09:00
sequencer.h
server-info.c
setup.c Merge branch 'ks/verify-filename-non-option-error-message-tweak' 2017-10-07 16:27:56 +09:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c cleanup: fix possible overflow errors in binary search 2017-10-10 08:57:24 +09:00
sha1-lookup.h
sha1_file.c Merge branch 'ma/lockfile-fixes' 2017-11-06 13:11:21 +09:00
sha1_name.c cleanup: fix possible overflow errors in binary search 2017-10-10 08:57:24 +09:00
sha1dc_git.c
sha1dc_git.h
shallow.c Merge branch 'ma/leakplugs' 2017-09-29 11:23:43 +09:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c Merge branch 'rs/strbuf-getwholeline-fix' into maint 2017-10-18 14:18:58 +09:00
strbuf.h Merge branch 'ma/ts-cleanups' into maint 2017-10-23 14:19:02 +09:00
streaming.c Merge branch 'jk/write-in-full-fix' 2017-09-25 15:24:06 +09:00
streaming.h
string-list.c cleanup: fix possible overflow errors in binary search 2017-10-10 08:57:24 +09:00
string-list.h string-list.h: move documentation from Documentation/api/ into header 2017-09-27 09:14:34 +09:00
sub-process.c Merge branch 'cc/subprocess-handshake-missing-capabilities' into maint 2017-10-18 14:19:10 +09:00
sub-process.h
submodule-config.c
submodule-config.h
submodule.c Merge branch 'sb/submodule-diff-header-fix' 2017-10-03 15:42:49 +09:00
submodule.h Merge branch 'hn/typofix' 2017-09-28 14:47:52 +09:00
symlinks.c
tag.c Merge branch 'rs/tag-null-pointer-arith-fix' 2017-10-05 13:48:20 +09:00
tag.h
tar.h
tempfile.c
tempfile.h tempfile: fix documentation on `delete_tempfile()` 2017-10-06 10:07:18 +09:00
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c Merge branch 'jk/write-in-full-fix' into maint 2017-10-23 14:37:22 +09:00
transport.c refs: pass NULL to resolve_refdup() if hash is not needed 2017-10-01 17:27:14 +09:00
transport.h
tree-diff.c
tree-walk.c Merge branch 'rj/no-sign-compare' 2017-09-29 11:23:42 +09:00
tree-walk.h
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
unpack-trees.h
upload-pack.c Merge branch 'ma/leakplugs' 2017-09-29 11:23:43 +09:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c Merge branch 'ik/userdiff-html-h-element-fix' into maint 2017-10-18 14:19:02 +09:00
userdiff.h
utf8.c cleanup: fix possible overflow errors in binary search 2017-10-10 08:57:24 +09:00
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'nd/worktree-kill-parse-ref' into maint 2017-10-23 14:14:16 +09:00
worktree.h
wrap-for-bin.sh
wrapper.c
write_or_die.c
ws.c
wt-status.c Merge branch 'ma/lockfile-fixes' 2017-11-06 13:11:21 +09:00
wt-status.h
xdiff-interface.c xdiff-interface: export comparing and hashing strings 2017-10-26 11:23:22 +09:00
xdiff-interface.h xdiff-interface: export comparing and hashing strings 2017-10-26 11:23:22 +09:00
zlib.c

README.md

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://public-inbox.org/git/, http://marc.info/?l=git and other archival sites.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • "goddamn idiotic truckload of sh*t": when it breaks