When a remote server uses git-shell, the client side will
connect to it like:
ssh server "git-upload-pack 'foo.git'"
and we literally exec ("git-upload-pack", "foo.git"). In
early versions of upload-pack and receive-pack, we took a
repository argument and nothing else. But over time they
learned to accept dashed options. If the user passes a
repository name that starts with a dash, the results are
confusing at best (we complain of a bogus option instead of
a non-existent repository) and malicious at worst (the user
can start an interactive pager via "--help").
We could pass "--" to the sub-process to make sure the
user's argument is interpreted as a branch name. I.e.:
git-upload-pack -- -foo.git
But adding "--" automatically would make us inconsistent
with a normal shell (i.e., when git-shell is not in use),
where "-foo.git" would still be an error. For that case, the
client would have to specify the "--", but they can't do so
reliably, as existing versions of git-shell do not allow
more than a single argument.
The simplest thing is to simply disallow "-" at the start of
the repo name argument. This hasn't worked either with or
without git-shell since version 1.0.0, and nobody has
complained.
Note that this patch just applies to do_generic_cmd(), which
runs upload-pack, receive-pack, and upload-archive. There
are two other types of commands that git-shell runs:
- do_cvs_cmd(), but this already restricts the argument to
be the literal string "server"
- admin-provided commands in the git-shell-commands
directory. We'll pass along arbitrary arguments there,
so these commands could have similar problems. But these
commands might actually understand dashed arguments, so
we cannot just block them here. It's up to the writer of
the commands to make sure they are safe. With great
power comes great responsibility.
Reported-by: Timo Schmid <tschmid@ernw.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Set the NO_REGEX=NeedsStartEnd Makefile flag by default on AIX.
Since commit 2f8952250a ("regex: add regexec_buf() that can work on a
non NUL-terminated string", 2016-09-21) git has errored out at
compile-time if the regular expression library doesn't support
REG_STARTEND.
While looking through Google search results for the use of NO_REGEX I
found a Chef recipe that set this on AIX[1], looking through the
documentation for the latest version of AIX (7.2, released October
2015) shows that its regexec() doesn't have REG_STARTEND.
1. https://github.com/chef/omnibus-software/commit/e247e36761#diff-3df898345d670979b74acc0bf71d8c47
2. https://www.ibm.com/support/knowledgecenter/ssw_aix_72/com.ibm.aix.basetrf2/regexec.htm
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git clone --config" uses the following incantation to add an item to
a config file, instead of replacing an existing value:
git_config_set_multivar_gently(key, value, "^$", 0)
As long as no existing value matches the regex ^$, that works as
intended and adds to the config. When a value is empty, though, it
replaces the existing value.
Noticed while trying to set credential.helper during a clone to use a
specific helper without inheriting from ~/.gitconfig and
/etc/gitconfig. That is, I ran
git clone -c credential.helper= \
-c credential.helper=myhelper \
https://example.com/repo
intending to produce the configuration
[credential]
helper =
helper = myhelper
Without this patch, the 'helper =' line is not included and the
credential helper from /etc/gitconfig gets used.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git's configuration system works by reading multiple configuration
files in order, from general to specific:
- first, the system configuration /etc/gitconfig
- then the user's configuration (~/.gitconfig or ~/.config/git/config)
- then the repository configuration (.git/config)
For single-valued configuration items, the latest value wins. For
multi-valued configuration items, values accumulate in that order.
For example, this allows setting a credential helper globally in
~/.gitconfig that git will try to use in all repositories, regardless
of whether they additionally provide another helper. This is usually
a nice thing --- e.g. I can install helpers to use my OS keychain and
to cache credentials for a short period of time globally.
Sometimes people want to be able to override an inherited setting.
For the credential.helper setting, this is done by setting the
configuration item to empty before giving it a new value. This is
already documented but the documentation is hard to find ---
git-config(1) says to look at gitcredentials(7) and the config
reference in gitcredentials(7) doesn't mention this issue.
Move the documentation to the config reference to make it easier to
find.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are currently two instances (fetch and push) where we want to
determine if submodules have changed given some revision specification.
These two instances don't use the same logic to generate a list of
changed submodules and as a result there is a fair amount of code
duplication.
This patch refactors these two code paths such that they both use the
same logic to generate a list of changed submodules. This also makes it
easier for future callers to be able to reuse this logic as they only
need to create an argv_array with the revision specification to be using
during the revision walk.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach 'submodule_has_commits()' to ensure that if a commit exists in a
submodule, that it is also reachable from a ref.
This is a preparatory step prior to merging the logic which checks for
changed submodules when fetching or pushing.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git rebase -i" failed to re-read the todo list file when the
command specified with the `exec` instruction updated it.
* sh/rebase-i-reread-todo-after-exec:
rebase -i: reread the todo list if `exec` touched it
32-bit Linux build on Travis CI uses stricter compilation options.
* ls/travis-stricter-linux32-builds:
travis-ci: set DEVELOPER knob for Linux32 build
Relaying status from Windows build by Travis CI was done with an
unsafe invocation of printf.
* ls/travis-win-fix-status:
travis-ci: printf $STATUS as string
Fix a segv in 'submodule init' when url is not given for a submodule.
* jk/submodule-init-segv-fix:
submodule_init: die cleanly on submodules without url defined
Completion for "git checkout <branch>" that auto-creates the branch
out of a remote tracking branch can now be disabled, as this
completion often gets in the way when completing to checkout an
existing local branch that happens to share the same prefix with
bunch of remote tracking branches.
* jk/complete-checkout-sans-dwim-remote:
completion: optionally disable checkout DWIM
Eliminate a call to 'xstrdup()' by changing the string_list
'changed_submodule_paths' to duplicated strings added to it.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function 'add_oid_to_argv()' provides the same functionality as
'append_oid_to_argv()'. Remove this duplicate function and instead use
'append_oid_to_argv()' where 'add_oid_to_argv()' was previously used.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rename 'free_submodules_sha1s()' to 'free_submodules_oids()' since the
function frees a 'struct string_list' which has a 'struct oid_array'
stored in the 'util' field.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rename 'add_sha1_to_array()' to 'append_oid_to_array()' to more
accurately describe what the function does, since it handles
'struct object_id' and not sha1 character arrays.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rename the t5614-clone-submodules.sh test to
t5614-clone-submodules-shallow.sh. It's not a general test of
submodules, but of shallow cloning in relation to submodules. Move it
to create another similar t56*-clone-submodules-*.sh test.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a --no-tags option to clone without fetching any tags.
Without this change there's no easy way to clone a repository without
also fetching its tags.
When supplying --single-branch the primary remote branch will be
cloned, but in addition tags will be followed & retrieved. Now
--no-tags can be added --single-branch to clone a repository without
tags, and which only tracks a single upstream branch.
This option works without --single-branch as well, and will do a
normal clone but not fetch any tags.
Many git commands pay some fixed overhead as a function of the number
of references. E.g. creating ~40k tags in linux.git will cause a
command like `git log -1 >/dev/null` to run in over a second instead
of in a matter of milliseconds, in addition numerous other things will
slow down, e.g. "git log <TAB>" with the bash completion will slowly
show ~40k references instead of 1.
The user might want to avoid all of that overhead to simply use a
repository like that to browse the "master" branch, or something like
a CI tool might want to keep that one branch up-to-date without caring
about any other references.
Without this change the only way of accomplishing this was either by
manually tweaking the config in a fresh repository:
git init git &&
cat >git/.git/config <<EOF &&
[remote "origin"]
url = git@github.com:git/git.git
tagOpt = --no-tags
fetch = +refs/heads/master:refs/remotes/origin/master
[branch "master"]
remote = origin
merge = refs/heads/master
EOF
cd git &&
git pull
Which requires hardcoding the "master" name, which may not be the main
--single-branch would have retrieved, or alternatively by setting
tagOpt=--no-tags right after cloning & deleting any existing tags:
git clone --single-branch git@github.com:git/git.git &&
cd git &&
git config remote.origin.tagOpt --no-tags &&
git tag -l | xargs git tag -d
Which of course was also subtly buggy if --branch was pointed at a
tag, leaving the user in a detached head:
git clone --single-branch --branch v2.12.0 git@github.com:git/git.git &&
cd git &&
git config remote.origin.tagOpt --no-tags &&
git tag -l | xargs git tag -d
Now all this complexity becomes the much simpler:
git clone --single-branch --no-tags git@github.com:git/git.git
Or in the case of cloning a single tag "branch":
git clone --single-branch --branch v2.12.0 --no-tags git@github.com:git/git.git
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change occurrences "cd" followed by "fetch" on a single line to be on
two lines.
This is purely a stylistic change pointed out in code review for an
unrelated patch. Change the these tests use so new tests added later
using the more common style don't look out of place.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The building of the reflog message is using strbuf, which is not
friendly with internationalization frameworks. No other reflog
messages are translated right now and switching all the messages to
i18n would require a major rework of the way the messages are built.
Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Listing the specific hooks might feel verbose but without it the
reader is left to wonder which hooks are triggered during the
push. Something which is not immediately obvious when only trying
to find out where the hook is executed.
Signed-off-by: Simon Ruderich <simon@ruderich.org>
Reviewed-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
-use US English spelling
-minor wording change for better readability
Helped-by: Stefan Beller <sbeller@google.com>
Signed-off-by: René Genz <liebundartig@freenet.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Check if unzip supports the ZIP64 format and skip the tests that create
big archives otherwise. Also skip the test that archives a big file on
32-bit platforms because the git object systems can't unpack files
bigger than 4GB there.
Reported-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add color config slots to be used in the status short-format when
displaying local and remote tracking branch information.
[jc: rebased on top of Peff's fix to 'git status' and tweaked the
test to check both local and remote-tracking branch output]
Signed-off-by: Stephen Kent <smkent@smkent.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When git-status shows tracking data for the current branch
in the long format, we try to end the stanza with a blank
line. When status.displayCommentPrefix is true, we call
color_fprintf_ln() to do so. But when it's false, we call
the enigmatic:
fputs("", s->fp);
which does nothing at all! This is a bug from 7d7d68022
(silence a bunch of format-zero-length warnings,
2014-05-04). Prior to that, we called fprintf_ln() with an
empty string. Switching to fputs() meant we needed to
include the "newline in the string, but we didn't.
So you see:
On branch jk/status-tracking-newline
Your branch is ahead of 'origin/master' by 1 commit.
Changes not staged for commit:
modified: foo
Untracked files:
bar
whereas there should be a blank line before the "Changes not
staged" line.
The fix itself is a one-liner. But we never noticed this
bug because t7508 doesn't exercise the ahead/behind code at
all. So let's configure an upstream during the initial
setup, which means that the code will be exercised as part
of all of the various invocations in that script. This makes
the diff rather noisy, but should give us good coverage.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signal that extractors need to implement spec version 4.5 (or higher)
for files with sizes of 4GB and more. Older unzippers might produce
truncated results otherwise; they should rather refuse to extract.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The local ident_split variable is often mentioned three
times per line when dealing with its begin/end pointer
pairs. Let's use a shorter name which lets us get rid of
some long lines. Since this is a short self-contained
function, readability doesn't suffer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After we call split_ident_line(), we have several begin/end
pairs for various parts of the ident. We then copy each into
a strbuf to create a single string, and then detach that
string. We can instead skip the strbuf entirely and just
duplicate the strings directly.
This is shorter, and it makes it more obvious that we are
not leaking the strbuf (we were not before, because every
code path either died or hit a strbuf_detach).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
