Since we're modifying this function anyway, it's a good time
to update it to the more modern "struct oid". We can also
drop some of the magic numbers in favor of GIT_SHA1_HEXSZ,
along with some descriptive comments.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The word "align" describes how the function actually differs
from find_unique_abbrev, and will make it less confusing
when we add more diff-specific abbrevation functions that do
not do this alignment.
Since this is a globally available function, let's also move
its descriptive comment to the header file, where we
typically document function interfaces.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some code paths want to format multiple abbreviated sha1s in
the same output line. Because we use a single static buffer
for our return value, they have to either break their output
into several calls or allocate their own arrays and use
find_unique_abbrev_r().
Intead, let's mimic sha1_to_hex() and use a ring of several
buffers, so that the return value stays valid through
multiple calls. This shortens some of the callers, and makes
it harder to for them to make a silly mistake.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These test helper programs access the index, but do not ever
setup_git_directory(), meaning we just blindly looked in
".git/index". This happened to work for the purposes of our
tests (which do not run from subdirectories, nor in
non-repos), but it's a bad habit.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The low-level attribute and gitignore code will try to look
in $GIT_DIR/info for any repo-level configuration files,
even if we have not actually determined that we are in a
repository (e.g., running "git grep --no-index"). In such a
case they end up looking for ".git/info/attributes", etc.
This is generally harmless, as such a file is unlikely to
exist outside of a repository, but it's still conceptually
the wrong thing to do.
Let's detect this situation explicitly and skip reading the
file (i.e., the same behavior we'd get if we were in a
repository and the file did not exist).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There still are a few topics that need to go in before -rc0 which
would make the shape of the upcoming release clearer, but here is
the final batch before it happens.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An empty string used as a pathspec element has always meant
'everything matches', but it is too easy to write a script that
finds a path to remove in $path and run 'git rm "$paht"', which
ends up removing everything. Start warning about this use of an
empty string used for 'everything matches' and ask users to use a
more explicit '.' for that instead.
The hope is that existing users will not mind this change, and
eventually the warning can be turned into a hard error, upgrading
the deprecation into removal of this (mis)feature.
* ex/deprecate-empty-pathspec-as-match-all:
pathspec: warn on empty strings as pathspec
Some AsciiDoc formatter mishandles a displayed illustration with
tabs in it. Adjust a few of them in merge-base documentation to
work around them.
* po/fix-doc-merge-base-illustration:
doc: fix the 'revert a faulty merge' ASCII art tab spacing
doc: fix merge-base ASCII art tab spacing
The Travis CI configuration we ship ran the tests with --verbose
option but this risks non-TAP output that happens to be "ok" to be
misinterpreted as TAP signalling a test that passed. This resulted
in unnecessary failure. This has been corrected by introducing a
new mode to run our tests in the test harness to send the verbose
output separately to the log file.
* jk/tap-verbose-fix:
test-lib: bail out when "-v" used under "prove"
travis: use --verbose-log test option
test-lib: add --verbose-log option
test-lib: handle TEST_OUTPUT_DIRECTORY with spaces
"git send-email" attempts to pick up valid e-mails from the
trailers, but people in real world write non-addresses there, like
"Cc: Stable <add@re.ss> # 4.8+", which broke the output depending
on the availability and vintage of Mail::Address perl module.
* mm/send-email-cc-cruft-after-address:
Git.pm: add comment pointing to t9000
t9000-addresses: update expected results after fix
parse_mailboxes: accept extra text after <...> address
Shorten description of auto-following in "git tag" by removing a
mention of historical remotes layout which is not relevant to the
main topic.
* yk/git-tag-remove-mention-of-old-layout-in-doc:
doc: remove reference to the traditional layout in git-tag.txt
A new version of git-gui, now at its 0.21.0 tag.
* pt/gitgui-updates: (22 commits)
git-gui: set version 0.21
git-gui: Mark 'All' in remote.tcl for translation
git-gui i18n: Updated Bulgarian translation (565,0f,0u)
git-gui: avoid persisting modified author identity
git-gui: handle the encoding of Git's output correctly
git-gui: unicode file name support on windows
git-gui: Update Russian translation
git-gui: maintain backwards compatibility for merge syntax
git-gui i18n: mark string in lib/error.tcl for translation
git-gui: fix incorrect use of Tcl append command
git-gui i18n: mark "usage:" strings for translation
git-gui i18n: internationalize use of colon punctuation
git-gui: ensure the file in the diff pane is in the list of selected files
git-gui: support for $FILENAMES in tool definitions
git-gui: fix initial git gui message encoding
git-gui/po/glossary/txt-to-pot.sh: use the $( ... ) construct for command substitution
git-gui (Windows): use git-gui.exe in `Create Desktop Shortcut`
git-gui: fix detection of Cygwin
Amend tab ordering and text widget border and highlighting.
Allow keyboard control to work in the staging widgets.
...
A recently graduated topic regressed "git rev-list --header"
output, breaking "gitweb". This has been fixed.
* jk/diff-submodule-diff-inline:
rev-list: use hdr_termination instead of a always using a newline
A hot-fix for a test added by a recent topic that went to both
'master' and 'maint' already.
* tg/add-chmod+x-fix:
t3700: fix broken test under !SANITY
Recent git allows submodule.<name>.branch to use a special token
"." instead of the branch name; the documentation has been updated
to describe it.
* bw/submodule-branch-dot-doc:
submodules doc: update documentation for "." used for submodule branches
More i18n.
* va/i18n:
i18n: diff: mark warnings for translation
i18n: credential-cache--daemon: mark advice for translation
i18n: convert mark error messages for translation
i18n: apply: mark error message for translation
i18n: apply: mark error messages for translation
i18n: apply: mark info messages for translation
i18n: apply: mark plural string for translation
When fetching from a remote that has many tags that are irrelevant
to branches we are following, we used to waste way too many cycles
when checking if the object pointed at by a tag (that we are not
going to fetch!) exists in our repository too carefully.
* jk/fetch-quick-tag-following:
fetch: use "quick" has_sha1_file for tag following
"git rebase" immediately after "git clone" failed to find the fork
point from the upstream.
* jk/merge-base-fork-point-without-reflog:
merge-base: handle --fork-point without reflog
Code clean-up and performance improvement to reduce use of
timestamp-ordered commit-list by replacing it with a priority
queue.
* jk/upload-pack-use-prio-queue:
upload-pack: use priority queue in reachable() check
In addition to purely abbreviated commit object names, "gitweb"
learned to turn "git describe" output (e.g. v2.9.3-599-g2376d31787)
into clickable links in its output.
* ab/gitweb-abbrev-links:
gitweb: link to "git describe"'d commits in log messages
gitweb: link to 7-char+ SHA-1s, not only 8-char+
gitweb: fix a typo in a comment
In a worktree connected to a repository elsewhere, created via "git
worktree", "git checkout" attempts to protect users from confusion
by refusing to check out a branch that is already checked out in
another worktree. However, this also prevented checking out a
branch, which is designated as the primary branch of a bare
reopsitory, in a worktree that is connected to the bare
repository. The check has been corrected to allow it.
* dk/worktree-dup-checkout-with-bare-is-ok:
worktree: allow the main brach of a bare repository to be checked out
The GPG verification status shown in "%G?" pretty format specifier
was not rich enough to differentiate a signature made by an expired
key, a signature made by a revoked key, etc. New output letters
have been assigned to express them.
* mg/gpg-richer-status:
gpg-interface: use more status letters
A new credential helper that talks via "libsecret" with
implementations of XDG Secret Service API has been added to
contrib/credential/.
* mm/credential-libsecret:
contrib: add credential helper for libsecret
"git ls-files" learned "--recurse-submodules" option that can be
used to get a listing of tracked files across submodules (i.e. this
only works with "--cached" option, not for listing untracked or
ignored files). This would be a useful tool to sit on the upstream
side of a pipe that is read with xargs to work on all working tree
files from the top-level superproject.
* bw/ls-files-recurse-submodules:
ls-files: add pathspec matching for submodules
ls-files: pass through safe options for --recurse-submodules
ls-files: optionally recurse into submodules
git: make super-prefix option
The require_clean_work_tree() helper was recreated in C when "git
pull" was rewritten from shell; the helper is now made available to
other callers in preparation for upcoming "rebase -i" work.
* js/libify-require-clean-work-tree:
wt-status: begin error messages with lower-case
wt-status: teach has_{unstaged,uncommitted}_changes() about submodules
wt-status: export also the has_un{staged,committed}_changes() functions
wt-status: make the require_clean_work_tree() function reusable
pull: make code more similar to the shell script again
pull: drop confusing prefix parameter of die_on_unclean_work_tree()
"git diff/log --ws-error-highlight=<kind>" lacked the corresponding
configuration variable to set it by default.
* jc/ws-error-highlight:
diff: introduce diff.wsErrorHighlight option
diff.c: move ws-error-highlight parsing helpers up
diff.c: refactor parse_ws_error_highlight()
t4015: split out the "setup" part of ws-error-highlight test
Overflow is defined for unsigned integers, but not for signed ones.
We could make the ring-buffer index in sha1_to_hex() and
get_pathname() unsigned to be on the safe side to resolve this, but
let's make it explicit that we are wrapping around at whatever the
number of elements the ring-buffer has. The compiler is smart enough
to turn modulus into bitmask for these codepaths that use
ring-buffers of a size that is a power of 2.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of referencing "stash@{n}" explicitly, make it possible to
simply reference as "n". Most users only reference stashes by their
position in the stash stack (what I refer to as the "index" here).
The syntax for the typical stash (stash@{n}) is slightly annoying and
easy to forget, and sometimes difficult to escape properly in a
script. Because of this the capability to do things with the stash by
simply referencing the index is desirable.
This patch includes the superior implementation provided by Øsse Walle
(thanks for that), with a slight change to fix a broken test in the test
suite. I also merged the test scripts as suggested by Jeff King, and
un-wrapped the documentation as suggested by Junio Hamano.
Signed-off-by: Aaron M Watson <watsona4@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
When an MSYS program (such as the bash that drives the test suite)
invokes git on Windows, absolute Unix style paths are transformed into
Windows native absolute paths (drive letter form). However, this
transformation also includes some simplifications that are not just
straight-forward textual substitutions:
- When the path ends in "/.", then the dot is stripped, but not the
directory separator.
- When the path contains "..", then it is optimized away if possible,
e.g., "/c/dir/foo/../bar" becomes "c:/dir/bar".
These additional transformations violate the assumptions of some
submodule path tests. We can avoid them when the input is already a
Windows native path, because then MSYS leaves the path unmolested.
Convert the uses of $PWD to $(pwd); the latter returns a native Windows
path.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This fixes "convert: add filter.<driver>.process option" (edcc8581) on
Windows.
Consider the case of a file that requires filtering and is present in
branch A but not in branch B. If A is the current HEAD and we checkout B
then the following happens:
1. ce_compare_data() opens the file
2. index_fd() detects that the file requires to run a clean filter and
calls index_stream_convert_blob()
4. index_stream_convert_blob() calls convert_to_git_filter_fd()
5. convert_to_git_filter_fd() calls apply_filter() which creates a
new long running filter process (in case it is the first file
of this kind to be filtered)
6. The new filter process inherits all file handles. This is the
default on Linux/OSX and is explicitly defined in the
`CreateProcessW` call in `mingw.c` on Windows.
7. ce_compare_data() closes the file
8. Git unlinks the file as it is not present in B
The unlink operation does not work on Windows because the filter process
has still an open handle to the file. On Linux/OSX the unlink operation
succeeds but the file descriptors still leak into the child process.
Fix this problem by opening files in read-cache with the O_CLOEXEC flag
to ensure that the file descriptor does not remain open in a newly
spawned process similar to 05d1ed6148 ("mingw: ensure temporary file
handles are not inherited by child processes", 2016-08-22).
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
All processes that the Git main process spawns inherit the open file
descriptors of the main process. These leaked file descriptors can
cause problems.
Use the O_CLOEXEC flag similar to 05d1ed61 to fix the leaked file
descriptors.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function is meant to be used when reading from files in the
object store, and the original objective was to avoid smudging atime
of loose object files too often, hence its name. Because we'll be
extending its role in the next commit to also arrange the file
descriptors they return auto-closed in the child processes, rename
it to lose "noatime" part that is too specific.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The asciidoctor doc-tool stack does not always respect the 'tab = 8 spaces' rule
expectation, particularly for the Git-for-Windows generated html pages. This
follows on from the 'doc: fix merge-base ASCII art tab spacing' fix.
Use just spaces within the block of the ascii art.
All other *.txt ascii art containing three dashes has been checked.
Asciidoctor correctly formats the other art blocks that do contain tabs.
Signed-off-by: Philip Oakley <philipoakley@iee.org
Signed-off-by: Junio C Hamano <gitster@pobox.com>
ita entries are dropped at tree generation phase. If the entire index
consists of just ita entries, the result would be a a commit with no
entries, which should be caught unless --allow-empty is specified. The
test "!!active_nr" is not sufficient to catch this.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If i-t-a entries are present and there is no change between the index
and HEAD i-t-a entries, index_differs_from() still returns "dirty, new
entries" (aka, the resulting commit is not empty), but cache-tree will
skip i-t-a entries and produce the exact same tree of current
commit.
index_differs_from() is supposed to catch this so we can abort
git-commit (unless --no-empty is specified). Update it to optionally
ignore i-t-a entries when doing a diff between the index and HEAD so
that it would return "no change" in this case and abort commit.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The option --ita-invisible-in-index exposes the "ita_invisible_in_index"
diff flag to outside to allow easier experimentation with this new mode.
The "plan" is to make --ita-invisible-in-index default to keep consistent
behavior with 'status' and 'commit', but a bunch other commands like
'apply', 'merge', 'reset'.... need to be taken into consideration as well.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When comparing the index and the working tree to show which paths are
new, and comparing the tree recorded in the HEAD and the index to see if
committing the contents recorded in the index would result in an empty
commit, we would want the former comparison to say "these are new paths"
and the latter to say "there is no change" for paths that are marked as
intent-to-add.
We made a similar attempt at d95d728a ("diff-lib.c: adjust position of
i-t-a entries in diff", 2015-03-16), which redefined the semantics of
these two comparison modes globally, which was a disaster and had to be
reverted at 78cc1a54 ("Revert "diff-lib.c: adjust position of i-t-a
entries in diff"", 2015-06-23).
To make sure we do not repeat the same mistake, introduce a new internal
diffopt option so that this different semantics can be asked for only by
callers that ask it, while making sure other unaudited callers will get
the same comparison result.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we are checking the path via path_ok(), we use some
fixed PATH_MAX buffers. We write into them via snprintf(),
so there's no possibility of overflow, but it does mean we
may silently truncate the path, leading to potentially
confusing errors when the partial path does not exist.
We're better off to reject the path explicitly.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When there is a TAP harness consuming the output of our test
scripts, the "--verbose" breaks the output by mingling
test command output with TAP. Because the TAP::Harness
module used by "prove" is fairly lenient, this _usually_
works, but it violates the spec, and things get very
confusing if the commands happen to output a line that looks
like TAP (e.g., the word "ok" on its own line).
Let's detect this situation and complain. Just calling
error() isn't great, though; prove will tell us that the
script failed, but the message doesn't make it through to
the user. Instead, we can use the special TAP signal "Bail
out!". This not only shows the message to the user, but
instructs the harness to stop running the tests entirely.
This is exactly what we want here, as the problem is in the
command-line options, and every test script would produce
the same error.
The result looks like this (the first "Bailout called" line
is in red if prove uses color on your terminal):
$ make GIT_TEST_OPTS='--verbose --tee'
rm -f -r 'test-results'
*** prove ***
Bailout called. Further testing stopped: verbose mode forbidden under TAP harness; try --verbose-log
FAILED--Further testing stopped: verbose mode forbidden under TAP harness; try --verbose-log
Makefile:39: recipe for target 'prove' failed
make: *** [prove] Error 255
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now all that is left to do is to actually iterate over the refs
and measure the display width needed to show their abbreviation.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now we have identified three callchains that have a set of refs that
they want to show their <old, new> object names in an aligned output,
we can replace their reference to the constant TRANSPORT_SUMMARY_WIDTH
with a helper function call to transport_summary_width() that takes
the set of ref as a parameter. This step does not yet iterate over
the refs and compute, which is left as an exercise to the readers.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The leaf function on the "fetch" side that uses TRANSPORT_SUMMARY_WIDTH
constant is builtin/fetch.c::format_display() and it has two distinct
callchains. The one that reports the primary result of fetch originates
at store_updated_refs(); the other one that reports the pruning of
the remote-tracking refs originates at prune_refs().
Teach these two places to pass summary_width down the callchain,
just like we did for the "push" side in the previous commit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The callchain that originates at transport_print_push_status()
eventually hits a single leaf function, print_ref_status(), that is
used to show from what old object to what new object a ref got
updated, and the width of the part that shows old and new object
names used a constant TRANSPORT_SUMMARY_WIDTH.
Teach the callchain to pass the width down from the top instead.
This allows a future enhancement to compute the necessary display
width before calling down this callchain.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, interpret-trailers requires that a trailer be only on 1 line.
For example:
a: first line
second line
would be interpreted as one trailer line followed by one non-trailer line.
Make interpret-trailers support RFC 822-style folding, treating those
lines as one logical trailer.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, interpret-trailers allows leading whitespace in trailer
lines. This leads to false positives, especially for quoted lines or
bullet lists.
Forbid leading whitespace in trailers.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
