This implements what "help -g" introduced in the previous step does.
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Logic, but no actions, included.
The --all commands option, if given, will display the list of
available commands.
The --guide option's list of guides will then be displayed.
The common commands list is only displayed if neither option, nor a
command or guide name, is given.
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"help -a" (help all) gives the list of available commands and then
further gives hints on the use of "git help". Separate these into
two steps, because we will add "help -g" (help guides) that want to
also show the overall hints after it is done.
While at it, change the definition of the "-a" option to use OPT_BOOL,
not the deprecated OPT_BOOLEAN. We do not behave differently when
the user gives the "-a" option multiple times, e.g. "git help -a -a".
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach "show/log" honor gpg.program configuration just like other
parts of the code that use GnuPG.
* js/log-gpg:
log: read gpg settings for signed commit verification
Currently, do_push() in push.c calls remote_get(), which gets the
configured remote for fetching and pushing. Replace this call with a
call to pushremote_get() instead, a new function that will return the
remote configured specifically for pushing. This function tries to
work with the string pushremote_name, before falling back to the
codepath of remote_get(). This patch has no visible impact, but
serves to enable future patches to introduce configuration variables
to set pushremote_name. For example, you can now do the following in
handle_config():
if (!strcmp(key, "remote.pushdefault"))
git_config_string(&pushremote_name, key, value);
Then, pushes will automatically go to the remote specified by
remote.pushdefault.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"index-pack --verify-stat" used a few counters outside protection
of mutex, possibly showing incorrect numbers.
* nd/index-pack-threaded-fixes:
index-pack: guard nr_resolved_deltas reads by lock
index-pack: protect deepest_delta in multithread code
"index-pack --fix-thin" used uninitialize value to compute delta
depths of objects it appends to the resulting pack.
* jk/index-pack-correct-depth-fix:
index-pack: always zero-initialize object_entry list
Add a bit more information to "git status" during a rebase/bisect
session.
* nd/branch-show-rebase-bisect-state:
status, branch: fix the misleading "bisecting" message
branch: show more information when HEAD is detached
status: show more info than "currently not on any branch"
wt-status: move wt_status_get_state() out to wt_status_print()
wt-status: split wt_status_state parsing function out
wt-status: move strbuf into read_and_strip_branch()
Clean up pkt-line API, implementation and its callers to make them
more robust.
* jk/pkt-line-cleanup:
do not use GIT_TRACE_PACKET=3 in tests
remote-curl: always parse incoming refs
remote-curl: move ref-parsing code up in file
remote-curl: pass buffer straight to get_remote_heads
teach get_remote_heads to read from a memory buffer
pkt-line: share buffer/descriptor reading implementation
pkt-line: provide a LARGE_PACKET_MAX static buffer
pkt-line: move LARGE_PACKET_MAX definition from sideband
pkt-line: teach packet_read_line to chomp newlines
pkt-line: provide a generic reading function with options
pkt-line: drop safe_write function
pkt-line: move a misplaced comment
write_or_die: raise SIGPIPE when we get EPIPE
upload-archive: use argv_array to store client arguments
upload-archive: do not copy repo name
send-pack: prefer prefixcmp over memcmp in receive_status
fetch-pack: fix out-of-bounds buffer offset in get_ack
upload-pack: remove packet debugging harness
upload-pack: do not add duplicate objects to shallow list
upload-pack: use get_sha1_hex to parse "shallow" lines
Consolidate codepaths that inspect log-message-to-be and decide to
add a new Signed-off-by line in various commands.
* bc/append-signed-off-by:
git-commit: populate the edit buffer with 2 blank lines before s-o-b
Unify appending signoff in format-patch, commit and sequencer
format-patch: update append_signoff prototype
t4014: more tests about appending s-o-b lines
sequencer.c: teach append_signoff to avoid adding a duplicate newline
sequencer.c: teach append_signoff how to detect duplicate s-o-b
sequencer.c: always separate "(cherry picked from" from commit body
sequencer.c: require a conforming footer to be preceded by a blank line
sequencer.c: recognize "(cherry picked from ..." as part of s-o-b footer
t/t3511: add some tests of 'cherry-pick -s' functionality
t/test-lib-functions.sh: allow to specify the tag name to test_commit
commit, cherry-pick -s: remove broken support for multiline rfc2822 fields
sequencer.c: rework search for start of footer to improve clarity
When --verify-signatures is specified, abort the merge in case a good
GPG signature from an untrusted key is encountered.
Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When --verify-signatures is specified on the command-line of git-merge
or git-pull, check whether the commits being merged have good gpg
signatures and abort the merge in case they do not. This allows e.g.
auto-deployment from untrusted repo hosts.
Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After commit cbfd5e1c ("drop some obsolete "x = x" compiler warning
hacks", 21-03-2013) removed a gcc specific hack, older versions of
gcc now issue an "'contents' might be used uninitialized" warning.
In order to suppress the warning, we simply initialize the variable
to NULL in it's declaration.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we manage to clone a remote repository but run into an
error in the checkout, it is probably sane to leave the repo
directory in place. That lets the user examine the situation
without spending time to re-clone from the remote (which may
be a lengthy process).
Rather than try to convert each die() from the checkout code
path into an error(), we simply set a flag that tells the
"remove_junk" atexit function to print a helpful message and
leave the repo in place.
Note that the test added in this patch actually passes
without the code change. The reason is that the cleanup code
is buggy; we chdir into the working tree for the checkout,
but still may use relative paths to remove the directories
(which means if you cloned into "foo", we would accidentally
remove "foo" from the working tree!). There's no point in
fixing it now, since this patch means we will never try to
remove anything after the chdir, anyway.
[jc: replaced the message with a more succinct version from
Jonathan]
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"show --show-signature" and "log --show-signature" do not read the
gpg.program setting from git config, even though, commit signing,
tag signing, and tag verification honor it.
Signed-off-by: Jacob Sarvis <jsarvis@openspan.com>
Signed-off-by: Hans Brigman <hbrigman@openspan.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we fetch from a remote, we do a revision walk to make
sure that what we received is connected to our existing
history. We do not do the same check for clone, which should
be able to check that we received an intact history graph.
The upside of this patch is that it will make clone more
resilient against propagating repository corruption. The
downside is that we will now traverse "rev-list --objects
--all" down to the roots, which may take some time (it is
especially noticeable for a "--local --bare" clone).
Note that we need to adjust t5710, which tries to make such
a bogus clone. Rather than checking after the fact that our
clone is bogus, we can simplify it to just make sure "git
clone" reports failure.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When clone is populating the working tree, it ignores the
return status from unpack_trees; this means we may report a
successful clone, even when the checkout fails.
When checkout fails, we may want to leave the $GIT_DIR in
place, as it might be possible to recover the data through
further use of "git checkout" (e.g., if the checkout failed
due to a transient error, disk full, etc). However, we
already die on a number of other checkout-related errors, so
this patch follows that pattern.
In addition to marking a now-passing test, we need to adjust
t5710, which blindly assumed it could make bogus clones of
very deep alternates hierarchies. By using "--bare", we can
avoid it actually touching any objects.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
More fixes for 1.8.2.1
merge-tree: fix typo in merge-tree.c::unresolved
git-commit doc: describe use of multiple `-m` options
git-pull doc: fix grammo ("conflicts" is plural)
When calculating whether there is a d/f conflict, the calculation of
whether both sides are directories generates an incorrect references
mask because it does not use the loop index to set the correct bit.
Fix this typo.
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In checkout_paths() we do this
- for all updated items, call match_pathspec
- for all items, call match_pathspec (inside unmerge_cache)
- for all items, call match_pathspec (for showing "path .. is unmerged)
- for updated items, call match_pathspec and update paths
That's a lot of duplicate match_pathspec(s) and the function is not
exactly cheap to be called so many times, especially on large indexes.
This patch makes it call match_pathspec once per updated index entry,
save the result in ce_flags and reuse the results in the following
loops.
The changes in 0a1283b (checkout $tree $path: do not clobber local
changes in $path not in $tree - 2011-09-30) limit the affected paths
to ones we read from $tree. We do not do anything to other modified
entries in this case, so the "for all items" above could be modified
to "for all updated items". But..
The command's behavior now is modified slightly: unmerged entries that
match $path, but not updated by $tree, are now NOT touched. Although
this should be considered a bug fix, not a regression. A new test is
added for this change.
And while at there, free ps_matched after use.
The following command is tested on webkit, 215k entries. The pattern
is chosen mainly to make match_pathspec sweat:
git checkout -- "*[a-zA-Z]*[a-zA-Z]*[a-zA-Z]*"
before after
real 0m3.493s 0m2.737s
user 0m2.239s 0m1.586s
sys 0m1.252s 0m1.151s
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sort filenames read from the maildir/ in a way that is more likely
to sort messages in the order the writing MUA meant to, by sorting
numeric segment in numeric order and non-numeric segment in
alphabetical order.
* jk/mailsplit-maildir-muttsort:
mailsplit: sort maildir filenames more cleverly
"git branch" had more cases where it did not bother to check
nonsense command line parameters.
* nd/branch-error-cases:
branch: segfault fixes and validation
In "git reflog expire", REACHABLE bit was not cleared from the
correct objects.
* jc/maint-reflog-expire-clean-mark-typofix:
reflog: fix typo in "reflog expire" clean-up codepath
Commit ba3c69a9 (commit: teach --gpg-sign option, 2011-10-05) added the
-S option but documented it in the command usage without indicating that
the value is optional and forgot to mention it in the manpage. Later
commit 098bbdc3 (Add -S, --gpg-sign option to manpage of "git commit",
2012-10-21) documented the option in the porcelain manpage.
Use wording from the porcelain manpage to document the option in the
plumbing manpage. Also update the commit-tree usage summary to indicate
that the -S value is optional to be consistent with the manpage and with
the implementation.
Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Not that we do not actively encourage having annotated tags outside
refs/tags/ hierarchy, but they were not advertised correctly to the
ls-remote and fetch with recent version of Git.
* jk/fully-peeled-packed-ref:
pack-refs: add fully-peeled trait
pack-refs: write peeled entry for non-tags
use parse_object_or_die instead of die("bad object")
avoid segfaults on parse_object failure
"git tag -f <tag>" always said "Updated tag '<tag>'" even when
creating a new tag (i.e. not overwriting nor updating).
* ph/tag-force-no-warn-on-creation:
tag: --force does not have to warn when creating tags
In "git reflog expire", REACHABLE bit was not cleared from the
correct objects.
* jc/maint-reflog-expire-clean-mark-typofix:
reflog: fix typo in "reflog expire" clean-up codepath
The "--match=<pattern>" option of "git describe", when used with
"--all" to allow refs that are not annotated tags to be used as a
base of description, did not restrict the output from the command
to those that match the given pattern.
We may want to have a looser matching that does not restrict to tags,
but that can be done as a follow-up topic; this step is purely a bugfix.
* jc/describe:
describe: --match=<pattern> must limit the refs even when used with --all
The current message is "bisecting %s" (or "bisecting branch %s").
"%s" is the current branch when we started bisecting. Clarify that to
avoid confusion with good and bad refs passed to "bisect" command.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Originally update-pre-post-images could assume that any whitespace
fixing will make the result only shorter by unexpanding runs of
leading SPs into HTs and removing trailing whitespaces at the end of
lines. Updating the post-image we read from the patch to match the
actual result can be performed in-place under this assumption.
These days, however, we have tab-in-indent (aka Python) rule whose
result can be longer than the original, and we do need to allocate
a larger buffer than the input and replace the result.
Fortunately the support for lengthening rewrite was already added
when we began supporting "match while ignoring whitespace
differences" mode in 86c91f9179 (git apply: option to ignore
whitespace differences, 2009-08-04). We only need to correctly
count the number of bytes necessary to hold the updated result and
tell the function to allocate a new buffer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
diff.c: diff.renamelimit => diff.renameLimit in message
wt-status: fix possible use of uninitialized variable
fast-import: clarify "inline" logic in file_change_m
run-command: always set failed_errno in start_command
transport: drop "int cmp = cmp" hack
drop some obsolete "x = x" compiler warning hacks
fast-import: use pointer-to-pointer to keep list tail
In cases where the setting and access of a variable are
protected by the same conditional flag, older versions of
gcc would generate a "might be used unitialized" warning. We
silence the warning by initializing the variable to itself,
a hack that gcc recognizes.
Modern versions of gcc are smart enough to get this right,
going back to at least version 4.3.5. gcc 4.1 does get it
wrong in both cases, but is sufficiently old that we
probably don't need to care about it anymore.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sort filenames read from the maildir/ in a way that is more likely
to sort messages in the order the writing MUA meant to, by sorting
numeric segment in numeric order and non-numeric segment in
alphabetical order.
* jk/mailsplit-maildir-muttsort:
mailsplit: sort maildir filenames more cleverly
Call "gpg" using the right API when validating the signature on
tags.
* mg/gpg-interface-using-status:
pretty: make %GK output the signing key for signed commits
pretty: parse the gpg status lines rather than the output
gpg_interface: allow to request status return
log-tree: rely upon the check in the gpg_interface
gpg-interface: check good signature in a reliable way
"git branch" had more cases where it did not bother to check
nonsense command line parameters.
* nd/branch-error-cases:
branch: segfault fixes and validation
'git commit -m "$str"' when $str was already terminated with a LF
now avoids adding an extra LF to the message.
* bc/commit-complete-lines-given-via-m-option:
Documentation/git-commit.txt: rework the --cleanup section
git-commit: only append a newline to -m mesg if necessary
t7502: demonstrate breakage with a commit message with trailing newlines
t/t7502: compare entire commit message with what was expected
"git count-objects -v" did not count leftover temporary packfiles
and other kinds of garbage.
* nd/count-garbage:
count-objects: report how much disk space taken by garbage files
count-objects: report garbage files in pack directory too
sha1_file: reorder code in prepare_packed_git_one()
git-count-objects.txt: describe each line in -v output
Allows requests to fetch objects at any tip of refs (including
hidden ones). It seems that there may be use cases even outside
Gerrit (e.g. $gmane/215701).
* jc/fetch-raw-sha1:
fetch: fetch objects by their exact SHA-1 object names
upload-pack: optionally allow fetching from the tips of hidden refs
fetch: use struct ref to represent refs to be fetched
parse_fetch_refspec(): clarify the codeflow a bit
Commit 38a4556 (index-pack: start learning to emulate
"verify-pack -v", 2011-06-03) added a "delta_depth" counter
to each "struct object_entry". Initially, all object entries
have their depth set to 0; in resolve_delta, we then set the
depth of each delta to "base + 1". Base entries never have
their depth touched, and remain at 0.
To ensure that all depths start at 0, that commit changed
calls to xmalloc the object_entry list into calls to
xcalloc. However, it forgot that we grow the list with
xrealloc later. These extra entries are used when we add an
object from elsewhere to complete a thin pack. If we add a
non-delta object, its depth value will just be uninitialized
heap data.
This patch fixes it by zero-initializing entries we add to
the objects list via the xrealloc.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently warn_pathless_add() is only called directly by cmd_add(),
but that is about to change. Move its definition higher in the file
and pass the "--update" or "--all" option name used in its message
through globals instead of function arguments to make it easier to
call without passing values that will not change through the call
chain.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The user could have said "git merge $(git rev-parse v1.0.0)"; we
shouldn't mark it as "Merge commit '15999998fb...'" as the merge
name, even though such an invocation might be crazy.
We could even read the "tag " header from the tag object and replace
the object name the user gave us, but let's not lose the information
by doing so, at least not yet.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The threaded parts of index-pack increment the number of resolved
deltas in nr_resolved_deltas guarded by counter_mutex. However, the
per-thread outer loop accessed nr_resolved_deltas without any locks.
This is not wrong as such, since it doesn't matter all that much
whether we get an outdated value. However, unless someone proves that
this one lock makes all the performance difference, it would be much
cleaner to guard _all_ accesses to the variable with the lock.
The only such use is display_progress() in the threaded section (all
others are in the conclude_pack() callchain outside the threaded
part). To make it obvious that it cannot deadlock, move it out of
work_mutex.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Reviewed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
deepest_delta is a global variable but is updated without protection
in resolve_delta(), a multithreaded function. Add a new mutex for it,
but only protect and update when it's actually used (i.e. show_stat is
non-zero).
Another variable that will not be updated is delta_depth in "struct
object_entry" as it's only useful when show_stat is 1. Putting it in
"if (show_stat)" makes it clearer.
The local variable "stat" is renamed to "show_stat" after moving to
global scope because the name "stat" conflicts with stat(2) syscall.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When fast-export wants to export a blob object, it first
calls parse_object to get a "struct object" and check
whether we have already shown the object. If we haven't
shown it, we then use read_sha1_file to pull it from disk
and write it out.
That means we load each blob from disk twice: once for
parse_object to find its type and check its sha1, and a
second time when we actually output it. We can drop this to
a single load by using lookup_object to check the SHOWN
flag, and then checking the signature on and outputting a
single buffer.
This provides modest speedups on git.git (best-of-five, "git
fast-export HEAD >/dev/null"):
[before] [after]
real 0m14.347s real 0m13.780s
user 0m14.084s user 0m13.620s
sys 0m0.208s sys 0m0.100s
and somewhat more on more blob-heavy repos (this is a
repository full of media files):
[before] [after]
real 0m52.236s real 0m44.451s
user 0m50.568s user 0m43.000s
sys 0m1.536s sys 0m1.284s
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The handle_object function is rather vaguely named; it only
operates on blobs, and its purpose is to export the blob to
the output stream. Let's call it "export_blob" to make it
more clear what it does.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some call-sites do:
o = parse_object(sha1);
if (!o)
die("bad object %s", some_name);
We can now handle that as a one-liner, and get more
consistent output.
In the third case of this patch, it looks like we are losing
information, as the existing message also outputs the sha1
hex; however, parse_object will already have written a more
specific complaint about the sha1, so there is no point in
repeating it here.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This prints more helpful info when HEAD is detached: is it detached
because of bisect or rebase? What is the original branch name in those
cases? Is it detached because the user checks out a remote ref or a
tag (and which one)?
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The translation of "completed with %d local objects" is put in a
48-byte buffer, which may be enough for English but not true for any
translations. Convert it to use strbuf (i.e. no hard limit on
translation length).
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git tag --force" mentions what old tag object is being replaced
when it is used to update an existing tag, but it shows the same
message when creating a new one. Stop doing that, as it does not
add any information.
Add a test for this and also to ensure --force can replace tags at
all.
Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We originally thought the transition would need a period where "git add
[-u|-A]" without pathspec would be forbidden, but the warning is big
enough to scare people and teach them not to use it (or, if so, to
understand the consequences).
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The new option "--follow-tags" tells "git push" to push annotated
tags that are missing from the other side and that can be reached by
the history that is otherwise pushed out.
For example, if you are using the "simple", "current", or "upstream"
push, you would ordinarily push the history leading to the commit at
your current HEAD and nothing else. With this option, you would
also push all annotated tags that can be reached from that commit to
the other side.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In "reflog expire" we were not clearing the REACHABLE bit from
objects reachable from the tip of refs we marked earlier.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A maildir does not technically record the order in which
items were placed into it. That means that when applying a
patch series from a maildir, we may get the patches in the
wrong order. We try to work around this by sorting the
filenames. Unfortunately, this may or may not work depending
on the naming scheme used by the writer of the maildir.
For instance, mutt will write:
${epoch_seconds}.${pid}_${seq}.${host}
where we have:
- epoch_seconds: timestamp at which entry was written
- pid: PID of writing process
- seq: a sequence number to ensure uniqueness of filenames
- host: hostname
None of the numbers are zero-padded. Therefore, when we sort
the names as byte strings, entries that cross a digit
boundary (e.g., 10) will sort out of order. In the case of
timestamps, it almost never matters (because we do not cross
a digit boundary in the epoch time very often these days).
But for the sequence number, a 10-patch series would be
ordered as 1, 10, 2, 3, etc.
To fix this, we can use a custom sort comparison function
which traverses each string, comparing chunks of digits
numerically, and otherwise doing a byte-for-byte comparison.
That would sort:
123.456_1.bar
123.456_2.bar
...
123.456_10.bar
according to the sequence number. Since maildir does not
define a filename format, this is really just a heuristic.
But it happens to work for mutt, and there is a reasonable
chance that it will work for other writers, too (at least as
well as a straight sort).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The logic to limit the refs used for describing with a matching pattern
with --match=<pattern> parameter was implemented incorrectly when --all
is in effect. It just demoted a ref that did not match the pattern to
lower priority---if there aren't other refs with higher priority
that describe the given commit, such an unmatching ref was still used.
When --match is used, reject refs that do not match the given
criteria, so that with or without --all, the output will only use
refs that match the pattern.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git check-ignore ." segfaulted, as a function it calls deep in its
callchain took a string in the <ptr, length> form but did not stop
when given an empty string.
* as/check-ignore:
name-hash: allow hashing an empty string
t0008: document test_expect_success_multi
A couple of references still survive to .git/refs as a tree
of all refs. Fix one in docs, one in a -h message, one in
a -h message quoted in docs.
Signed-off-by: Greg Price <price@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that we can read packet data from memory as easily as a
descriptor, get_remote_heads can take either one as a
source. This will allow further refactoring in remote-curl.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Even though "git update-index" was updated to use parse-options
infrastracture some time ago to make it possible to show list of
options with usage_with_options(), "git update-index -h" only shows
the usage. Detect this case and call usage_with_options() to show
the list of options as well.
Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
branch_get() can return NULL (so far on detached HEAD only) but some
code paths in builtin/branch.c cannot deal with that and cause
segfaults.
While at there, make sure to bail out when the user gives 2 or more
branches with --set-upstream-to or --unset-upstream, where only the
first branch is processed and the rest silently dropped.
Reported-by: Per Cederqvist <cederp@opera.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Most of the callers of packet_read_line just read into a
static 1000-byte buffer (callers which handle arbitrary
binary data already use LARGE_PACKET_MAX). This works fine
in practice, because:
1. The only variable-sized data in these lines is a ref
name, and refs tend to be a lot shorter than 1000
characters.
2. When sending ref lines, git-core always limits itself
to 1000 byte packets.
However, the only limit given in the protocol specification
in Documentation/technical/protocol-common.txt is
LARGE_PACKET_MAX; the 1000 byte limit is mentioned only in
pack-protocol.txt, and then only describing what we write,
not as a specific limit for readers.
This patch lets us bump the 1000-byte limit to
LARGE_PACKET_MAX. Even though git-core will never write a
packet where this makes a difference, there are two good
reasons to do this:
1. Other git implementations may have followed
protocol-common.txt and used a larger maximum size. We
don't bump into it in practice because it would involve
very long ref names.
2. We may want to increase the 1000-byte limit one day.
Since packets are transferred before any capabilities,
it's difficult to do this in a backwards-compatible
way. But if we bump the size of buffer the readers can
handle, eventually older versions of git will be
obsolete enough that we can justify bumping the
writers, as well. We don't have plans to do this
anytime soon, but there is no reason not to start the
clock ticking now.
Just bumping all of the reading bufs to LARGE_PACKET_MAX
would waste memory. Instead, since most readers just read
into a temporary buffer anyway, let's provide a single
static buffer that all callers can use. We can further wrap
this detail away by having the packet_read_line wrapper just
use the buffer transparently and return a pointer to the
static storage. That covers most of the cases, and the
remaining ones already read into their own LARGE_PACKET_MAX
buffers.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The packets sent during ref negotiation are all terminated
by newline; even though the code to chomp these newlines is
short, we end up doing it in a lot of places.
This patch teaches packet_read_line to auto-chomp the
trailing newline; this lets us get rid of a lot of inline
chomping code.
As a result, some call-sites which are not reading
line-oriented data (e.g., when reading chunks of packfiles
alongside sideband) transition away from packet_read_line to
the generic packet_read interface. This patch converts all
of the existing callsites.
Since the function signature of packet_read_line does not
change (but its behavior does), there is a possibility of
new callsites being introduced in later commits, silently
introducing an incompatibility. However, since a later
patch in this series will change the signature, such a
commit would have to be merged directly into this commit,
not to the tip of the series; we can therefore ignore the
issue.
This is an internal cleanup and should produce no change of
behavior in the normal case. However, there is one corner
case to note. Callers of packet_read_line have never been
able to tell the difference between a flush packet ("0000")
and an empty packet ("0004"), as both cause packet_read_line
to return a length of 0. Readers treat them identically,
even though Documentation/technical/protocol-common.txt says
we must not; it also says that implementations should not
send an empty pkt-line.
By stripping out the newline before the result gets to the
caller, we will now treat the newline-only packet ("0005\n")
the same as an empty packet, which in turn gets treated like
a flush packet. In practice this doesn't matter, as neither
empty nor newline-only packets are part of git's protocols
(at least not for the line-oriented bits, and readers who
are not expecting line-oriented packets will be calling
packet_read directly, anyway). But even if we do decide to
care about the distinction later, it is orthogonal to this
patch. The right place to tighten would be to stop treating
empty packets as flush packets, and this change does not
make doing so any harder.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is just write_or_die by another name. The one
distinction is that write_or_die will treat EPIPE specially
by suppressing error messages. That's fine, as we die by
SIGPIPE anyway (and in the off chance that it is disabled,
write_or_die will simulate it).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current parsing scheme for upload-archive is to pack
arguments into a fixed-size buffer, separated by NULs, and
put a pointer to each argument in the buffer into a
fixed-size argv array.
This works fine, and the limits are high enough that nobody
reasonable is going to hit them, but it makes the code hard
to follow. Instead, let's just stuff the arguments into an
argv_array, which is much simpler. That lifts the "all
arguments must fit inside 4K together" limit.
We could also trivially lift the MAX_ARGS limitation (in
fact, we have to keep extra code to enforce it). But that
would mean a client could force us to allocate an arbitrary
amount of memory simply by sending us "argument" lines. By
limiting the MAX_ARGS, we limit an attacker to about 4
megabytes (64 times a maximum 64K packet buffer). That may
sound like a lot compared to the 4K limit, but it's not a
big deal compared to what git-archive will actually allocate
while working (e.g., to load blobs into memory). The
important thing is that it is bounded.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
According to the comment, enter_repo will modify its input.
However, this has not been the case since 1c64b48
(enter_repo: do not modify input, 2011-10-04). Drop the
now-useless copy.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Usually we do not pass an empty string to the function hash_name()
because we almost always ask for hash values for a path that is a
candidate to be added to the index. However, check-ignore (and most
likely check-attr, but I didn't check) apparently has a callchain
to ask the hash value for an empty path when it was given a "." from
the top-level directory to ask "Is the path . excluded by default?"
Make sure that hash_name() does not overrun the end of the given
pathname even when it is empty.
Remove a sweep-the-issue-under-the-rug conditional in check-ignore
that avoided to pass an empty string to the callchain while at it.
It is a valid question to ask for check-ignore if the top-level is
set to be ignored by default, even though the answer is most likely
no, if only because there is currently no way to specify such an
entry in the .gitignore file. But it is an unusual thing to ask and
it is not worth optimizing for it by special casing at the top level
of the call chain.
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, git will append two newlines to every message supplied via
the -m switch. The purpose of this is to allow -m to be supplied
multiple times and have each supplied string become a paragraph in the
resulting commit message.
Normally, this does not cause a problem since any trailing newlines will
be removed by the cleanup operation. If cleanup=verbatim for example,
then the trailing newlines will not be removed and will survive into the
resulting commit message.
Instead, let's ensure that the string supplied to -m is newline terminated,
but only append a second newline when appending additional messages.
Fixes the test in t7502.
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow the server side to redact the refs/ namespace it shows to the
client.
Will merge to 'master'.
* jc/hidden-refs:
upload/receive-pack: allow hiding ref hierarchies
upload-pack: simplify request validation
upload-pack: share more code
Also issue warnings on loose garbages instead of errors as a result of
using report_garbage() function in count_objects()
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
prepare_packed_git_one() is modified to allow count-objects to hook a
report function to so we don't need to duplicate the pack searching
logic in count-objects.c. When report_pack_garbage is NULL, the
overhead is insignificant.
The garbage is reported with warning() instead of error() in packed
garbage case because it's not an error to have garbage. Loose garbage
is still reported as errors and will be converted to warnings later.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of requiring the full 40-hex object names on the index
line, we can read submodule commit object names from the textual
diff when synthesizing a fake ancestore tree for "git am -3".
* jc/extended-fake-ancestor-for-gitlink:
apply: verify submodule commit object name better
Currently, verify_signed_buffer() returns the user facing output only.
Allow callers to request the status output also.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a preparation step for merging with append_signoff from
sequencer.c
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach append_signoff how to detect a duplicate s-o-b in the commit footer.
This is in preparation to unify the append_signoff implementations in
log-tree.c and sequencer.c.
Fixes test in t3511.
Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
pathspec is the most widely used term, and is the one defined in
gitglossary.txt. <filepattern> was used only in the synopsys for git-add
and git-commit, and in git-add.txt. Get rid of it.
This patch is obtained with by running:
perl -pi -e 's/filepattern/pathspec/' `git grep -l filepattern`
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make sure the similarity value shown in the "apply --summary"
output is sensible, even when the input had a bogus value.
* jk/apply-similaritly-parsing:
builtin/apply: tighten (dis)similarity index parsing
Rebasing the history of superproject with change in the submodule
has been broken since v1.7.12.
* jc/fake-ancestor-with-non-blobs:
apply: diagnose incomplete submodule object name better
apply: simplify build_fake_ancestor()
git-am: record full index line in the patch used while rebasing
Fix various error messages and conditions in "git branch", e.g. we
advertised "branch -d/-D" to remove one or more branches but actually
implemented removal of zero or more branches---request to remove no
branches was not rejected.
* nd/branch-error-cases:
branch: let branch filters imply --list
docs: clarify git-branch --list behavior
branch: mark more strings for translation
branch: give a more helpful message on redundant arguments
branch: reject -D/-d without branch name
Even though "git fetch" has full infrastructure to parse refspecs to
be fetched and match them against the list of refs to come up with
the final list of refs to be fetched, the list of refs that are
requested to be fetched were internally converted to a plain list of
strings at the transport layer and then passed to the underlying
fetch-pack driver.
Stop this conversion and instead pass around an array of refs.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A repository may have refs that are only used for its internal
bookkeeping purposes that should not be exposed to the others that
come over the network.
Teach upload-pack to omit some refs from its initial advertisement
by paying attention to the uploadpack.hiderefs multi-valued
configuration variable. Do the same to receive-pack via the
receive.hiderefs variable. As a convenient short-hand, allow using
transfer.hiderefs to set the value to both of these variables.
Any ref that is under the hierarchies listed on the value of these
variable is excluded from responses to requests made by "ls-remote",
"fetch", etc. (for upload-pack) and "push" (for receive-pack).
Because these hidden refs do not count as OUR_REF, an attempt to
fetch objects at the tip of them will be rejected, and because these
refs do not get advertised, "git push :" will not see local branches
that have the same name as them as "matching" ones to be sent.
An attempt to update/delete these hidden refs with an explicit
refspec, e.g. "git push origin :refs/hidden/22", is rejected. This
is not a new restriction. To the pusher, it would appear that there
is no such ref, so its push request will conclude with "Now that I
sent you all the data, it is time for you to update the refs. I saw
that the ref did not exist when I started pushing, and I want the
result to point at this commit". The receiving end will apply the
compare-and-swap rule to this request and rejects the push with
"Well, your update request conflicts with somebody else; I see there
is such a ref.", which is the right thing to do. Otherwise a push to
a hidden ref will always be "the last one wins", which is not a good
default.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rebasing the history of superproject with change in the submodule
was broken since v1.7.12.
* jc/fake-ancestor-with-non-blobs:
apply: diagnose incomplete submodule object name better
apply: simplify build_fake_ancestor()
git-am: record full index line in the patch used while rebasing
A textual patch also records the submodule commit object name in
full. Make the parsing more robust by reading from there and
verifying the (possibly abbreviated) name on the index line matches.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Clarify the ownership rule for commit->buffer field, which some
callers incorrectly accessed without making sure it is populated.
* jk/read-commit-buffer-data-after-free:
logmsg_reencode: lazily load missing commit buffers
logmsg_reencode: never return NULL
commit: drop useless xstrdup of commit message
Forbid "git add -u" and "git add -A" without pathspec run from a
subdirectory, to train people to type "." (or ":/") to make the
choice of default does not matter.
* mm/add-u-A-sans-pathspec:
add: warn when -u or -A is used without pathspec
