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Brandon Williams 940283101c run-command: restrict PATH search to executable files
In some situations run-command will incorrectly try (and fail) to
execute a directory instead of an executable file.  This was observed by
having a directory called "ssh" in $PATH before the real ssh and trying
to use ssh protoccol, reslting in the following:

	$ git ls-remote ssh://url
	fatal: cannot exec 'ssh': Permission denied

It ends up being worse and run-command will even try to execute a
non-executable file if it preceeds the executable version of a file on
the PATH.  For example, if PATH=~/bin1:~/bin2:~/bin3 and there exists a
directory 'git-hello' in 'bin1', a non-executable file 'git-hello' in
bin2 and an executable file 'git-hello' (which prints "Hello World!") in
bin3 the following will occur:

	$ git hello
	fatal: cannot exec 'git-hello': Permission denied

This is due to only checking 'access()' when locating an executable in
PATH, which doesn't distinguish between files and directories.  Instead
use 'is_executable()' which check that the path is to a regular,
executable file.  Now run-command won't try to execute the directory or
non-executable file 'git-hello':

	$ git hello
	Hello World!

which matches what execvp(3) would have done when asked to execute
git-hello with such a $PATH.

Reported-by: Brian Hatfield <bhatfield@google.com>
Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-25 23:17:36 -07:00
block-sha1
builtin Merge branch 'js/difftool-builtin' 2017-04-16 23:29:34 -07:00
ci travis-ci: build and test Git on Windows 2017-03-28 12:24:48 -07:00
compat
contrib Merge branch 'jc/bs-t-is-not-a-tab-for-sed' 2017-04-16 23:29:29 -07:00
Documentation Twelfth batch for 2.13 2017-04-16 23:30:49 -07:00
ewah Merge branch 'jk/ewah-use-right-type-in-sizeof' into maint 2017-03-21 15:03:24 -07:00
git-gui git-gui 0.21.0 2016-10-20 09:33:17 -07:00
gitk-git
gitweb
mergetools
perl
po l10n: de: translate describe debug terms 2017-03-27 13:45:30 -07:00
ppc
refs Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
sha1dc sha1dc: avoid CPP macro collisions 2017-03-26 15:34:44 -07:00
t run-command: restrict PATH search to executable files 2017-04-25 23:17:36 -07:00
templates pre-receive.sample: mark it executable 2016-10-28 14:21:11 -07:00
vcs-svn Merge branch 'mr/vcs-svn-printf-ulong' 2016-09-21 15:15:27 -07:00
xdiff
.gitattributes
.gitignore
.mailmap Git 2.12.2 2017-03-24 13:31:01 -07:00
.travis.yml travis-ci: build and test Git on Windows 2017-03-28 12:24:48 -07:00
abspath.c prefix_filename: simplify windows #ifdef 2017-03-21 11:18:41 -07:00
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
argv-array.c
argv-array.h
attr.c pathspec: allow querying for attributes 2017-03-13 15:28:54 -07:00
attr.h pathspec: allow querying for attributes 2017-03-13 15:28:54 -07:00
base85.c
bisect.c replace unchecked snprintf calls with heap buffers 2017-03-30 14:59:50 -07:00
bisect.h
blob.c
blob.h
branch.c create_branch: use xstrfmt for reflog message 2017-03-30 14:59:50 -07:00
branch.h branch: record creation of renamed branch in HEAD's log 2017-02-20 22:04:47 -08:00
builtin.h
bulk-checkin.c encode_in_pack_object_header: respect output buffer length 2017-03-24 12:34:07 -07:00
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'jk/snprintf-cleanups' 2017-04-16 23:29:26 -07:00
check_bindir
check-builtins.sh
check-racy.c check-racy.c: use error_errno() 2016-05-09 12:29:08 -07:00
color.c
color.h
column.c
column.h
combine-diff.c combine-diff: replace malloc/snprintf with xstrfmt 2017-03-30 14:59:50 -07:00
command-list.txt
commit-slab.h
commit.c Merge branch 'rs/commit-parsing-optim' into maint 2017-03-21 15:03:29 -07:00
commit.h Merge branch 'rs/log-email-subject' 2017-03-10 13:24:24 -08:00
common-main.c
config.c Merge branch 'jk/parse-config-key-cleanup' into maint 2017-03-28 13:52:19 -07:00
config.mak.in
config.mak.uname Merge branch 'rj/remove-unused-mktemp' into maint 2017-03-21 15:03:24 -07:00
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
credential-cache--daemon.c
credential-cache.c credential-cache: use XDG_CACHE_HOME for socket 2017-03-17 11:19:40 -07:00
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c daemon: use an argv_array to exec children 2017-03-30 14:59:50 -07:00
date.c
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
diff.c diff: avoid fixed-size buffer for patch-ids 2017-03-30 14:58:29 -07:00
diff.h
diffcore-break.c Merge branch 'tk/diffcore-delta-remove-unused' 2016-11-17 13:45:22 -08:00
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c Merge branch 'js/regexec-buf' into maint 2017-03-28 13:52:24 -07:00
diffcore-rename.c
diffcore.h Merge branch 'tk/diffcore-delta-remove-unused' 2016-11-17 13:45:22 -08:00
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
dir.h
editor.c
entry.c entry.c: create submodules when interesting 2017-03-16 14:07:16 -07:00
environment.c Merge branch 'jk/snprintf-cleanups' 2017-04-16 23:29:26 -07:00
exec_cmd.c
exec_cmd.h
fast-import.c odb_mkstemp: write filename into strbuf 2017-03-28 15:28:04 -07:00
fetch-pack.c Merge branch 'mm/fetch-show-error-message-on-unadvertised-object' 2017-03-14 15:23:18 -07:00
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl Merge branch 'jk/add-i-use-pathspecs' 2017-03-17 13:50:26 -07:00
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'jk/pack-name-cleanups' into maint 2017-03-28 13:52:25 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
git-difftool--helper.sh
git-filter-branch.sh filter-branch: fix --prune-empty on parentless commits 2017-03-03 12:43:37 -08:00
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh Convert to use quiet option when available 2009-04-22 19:05:37 -07:00
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-parse-remote.sh i18n: git-parse-remote.sh: mark strings for translation 2016-04-19 12:07:49 -07:00
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh
git-rebase--merge.sh
git-rebase.sh
git-remote-testgit.sh
git-request-pull.sh request-pull: drop old USAGE stuff 2017-01-15 16:23:23 -08:00
git-send-email.perl Merge branch 'jh/send-email-one-cc' into maint 2017-03-21 15:03:30 -07:00
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh stash: keep untracked files intact in stash -k 2017-03-22 14:55:56 -07:00
git-submodule.sh submodule add: respect submodule.active and submodule.<name>.active 2017-03-18 09:51:23 -07:00
git-svn.perl git svn: fix authentication with 'branch' 2017-03-07 21:29:03 +00:00
GIT-VERSION-GEN Git 2.12.2 2017-03-24 12:59:15 -07:00
git-web--browse.sh
git.c Merge branch 'bw/recurse-submodules-relative-fix' 2017-03-30 14:07:15 -07:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c convert unchecked snprintf into xsnprintf 2017-03-30 14:59:50 -07:00
grep.h
hash.h Makefile: add DC_SHA1 knob 2017-03-17 10:40:25 -07:00
hashmap.c hashmap: add disallow_rehash setting 2017-03-22 13:41:41 -07:00
hashmap.h hashmap: add disallow_rehash setting 2017-03-22 13:41:41 -07:00
help.c run-command: expose is_executable function 2017-04-25 18:45:29 -07:00
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c http-push: don't check return value of lookup_unknown_object() 2017-03-18 10:14:07 -07:00
http-walker.c Merge branch 'ew/http-alternates-as-redirects-warning' into maint 2017-03-28 13:52:23 -07:00
http.c convert unchecked snprintf into xsnprintf 2017-03-30 14:59:50 -07:00
http.h
ident.c
imap-send.c convert unchecked snprintf into xsnprintf 2017-03-30 14:59:50 -07:00
INSTALL git-imap-send: use libcurl for implementation 2014-11-10 09:17:27 -08:00
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
levenshtein.h
LGPL-2.1
line-log.c Merge branch 'vn/line-log-memcpy-size-fix' into maint 2017-03-16 13:56:42 -07:00
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h list-objects: pass full pathname to callbacks 2016-02-12 12:51:17 -08:00
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c
log-tree.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'ab/regen-perl-mak-with-different-perl' 2017-04-16 23:29:33 -07:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
mergesort.h
mru.c
mru.h
name-hash.c name-hash: perf improvement for lazy_init_name_hash 2017-03-24 11:00:03 -07:00
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c notes: do not break note_tree structure in note_tree_consolidate() 2017-03-27 21:21:25 -07:00
notes.h
object.c
object.h
oidset.c
oidset.h
pack-bitmap-write.c odb_mkstemp: write filename into strbuf 2017-03-28 15:28:04 -07:00
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c odb_mkstemp: write filename into strbuf 2017-03-28 15:28:04 -07:00
pack.h pack.h: define largest possible encoded object size 2017-03-24 12:34:07 -07:00
pager.c Merge branch 'jk/pager-in-use' 2017-03-28 14:05:59 -07:00
parse-options-cb.c
parse-options.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
parse-options.h ref-filter: add --no-contains option to tag/branch/for-each-ref 2017-03-24 12:15:26 -07:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c path.c: add xdg_cache_home 2017-03-13 14:39:36 -07:00
pathspec.c pathspec: allow escaped query values 2017-03-13 15:28:56 -07:00
pathspec.h pathspec: allow querying for attributes 2017-03-13 15:28:54 -07:00
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Merge branch 'rs/log-email-subject' 2017-03-10 13:24:24 -08:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h Merge branch 'nd/icase' 2016-07-19 13:22:17 -07:00
reachable.c
reachable.h
read-cache.c Merge branch 'cc/split-index-config' 2017-03-17 13:50:23 -07:00
README.md
ref-filter.c Merge branch 'ab/ref-filter-no-contains' 2017-04-11 00:21:50 -07:00
ref-filter.h ref-filter: add --no-contains option to tag/branch/for-each-ref 2017-03-24 12:15:26 -07:00
reflog-walk.c
reflog-walk.h
refs.c avoid using mksnpath for refs 2017-03-30 14:59:50 -07:00
refs.h Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
RelNotes Prepare for 2.12.3 2017-03-28 13:54:14 -07:00
remote-curl.c remote-curl: allow push options 2017-03-22 15:41:21 -07:00
remote-testsvn.c
remote.c Merge branch 'jc/unused-symbols' 2017-04-16 23:29:27 -07:00
remote.h Merge branch 'jc/unused-symbols' 2017-04-16 23:29:27 -07:00
replace_object.c
rerere.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
revision.h Merge branch 'rs/path-name-safety-cleanup' into maint 2017-03-28 13:52:27 -07:00
run-command.c run-command: restrict PATH search to executable files 2017-04-25 23:17:36 -07:00
run-command.h run-command: expose is_executable function 2017-04-25 18:45:29 -07:00
send-pack.c Merge branch 'sb/push-options-via-transport' 2017-03-27 10:59:27 -07:00
send-pack.h
sequencer.c Merge branch 'js/rebase-i-reword-to-run-hooks' 2017-03-30 14:07:17 -07:00
sequencer.h
server-info.c
setup.c Merge branch 'bw/recurse-submodules-relative-fix' 2017-03-30 14:07:15 -07:00
sh-i18n--envsubst.c
sha1_file.c Merge branch 'jk/loose-object-info-report-error' 2017-04-16 23:29:30 -07:00
sha1_name.c rev-parse: match @{upstream}, @{u} and @{push} case-insensitively 2017-03-27 10:45:44 -07:00
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
shallow.c Merge branch 'nd/shallow-fixup' 2016-12-21 14:55:02 -08:00
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/freebsd-getcwd-workaround' 2017-03-30 14:07:15 -07:00
strbuf.h Merge branch 'jk/interpret-branch-name' into maint 2017-03-28 13:52:22 -07:00
streaming.c
streaming.h
string-list.c string-list: add string_list_remove function 2017-04-20 17:55:32 -07:00
string-list.h string-list: add string_list_remove function 2017-04-20 17:55:32 -07:00
submodule-config.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
submodule-config.h update submodules: add submodule config parsing 2017-03-15 18:15:54 -07:00
submodule.c Merge branch 'sb/show-diff-for-submodule-in-diff-fix' 2017-04-16 23:29:32 -07:00
submodule.h Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c tempfile: set errno to a known value before calling ferror() 2017-02-17 14:40:29 -08:00
tempfile.h
thread-utils.c thread-utils.c: detect CPU count on older BSD-like systems 2015-03-10 15:13:28 -07:00
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c transport-helper: replace checked snprintf with xsnprintf 2017-03-30 14:59:50 -07:00
transport.c Merge branch 'mm/fetch-show-error-message-on-unadvertised-object' into maint 2017-03-28 13:52:22 -07:00
transport.h
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode_width.h unicode_width.h: update the width tables to Unicode 9.0 2016-12-14 09:48:07 -08:00
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c unpack-trees.c: align submodule error message to the other error messages 2017-03-29 15:47:36 -07:00
unpack-trees.h unpack-trees: check if we can perform the operation for submodules 2017-03-16 14:07:16 -07:00
upload-pack.c
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'rs/strbuf-add-real-path' into maint 2017-03-28 13:52:19 -07:00
worktree.h
wrap-for-bin.sh wrap-for-bin.sh: regenerate bin-wrappers when switching branches 2016-05-10 13:23:34 -07:00
wrapper.c
write_or_die.c
ws.c
wt-status.c Merge branch 'sb/wt-status-cleanup' into maint 2017-03-28 13:52:26 -07:00
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

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