git-diff does not rely on the git wrapper to setup its
pager; instead, it sets it up on its own after seeing
whether --quiet or --exit-code has been specified. After
diff_no_index was split off from cmd_diff, commit b3fde6c
(git diff --no-index: default to page like other diff
frontends, 2008-05-26) duplicated the one-liner from
cmd_diff to turn on the pager.
Later, commit 8f0359f (Allow pager of diff command be
enabled/disabled, 2008-07-21) taught the the version in
cmd_diff to respect the pager.diff config, but the version
in diff_no_index was left behind. This meant that
git -c pager.diff=0 diff a b
would not use a pager, but
git -c pager.diff=0 diff --no-index a b
would. Let's fix it by factoring out a common function.
While we're there, let's update the antiquated comment,
which claims that the pager interferes with propagating the
exit code; this has not been the case since ea27a18 (spawn
pager via run_command interface, 2008-07-22).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Tone down the lines that credit people involved and make them
comments, so that integrators who edit their merge messages can
still make use of the information, but lazy ones will not leave
the unverified guesses placed on the "via" line.
* jc/fmt-merge-msg-people:
fmt-merge-msg: make attribution into comment lines
In commit e01105 Linus introduced gitlinks to update-index. He explains
that he thinks it is not the right thing to replace a gitlink with
something else.
That commit is from the very first beginnings of submodule support.
Since then we have gotten a lot closer to being able to remove a
submodule without losing its history. This check prevents such a use
case, so I think this assumption has changed.
Additionally in the git add codepath we do not have such a check, so for
consistency reasons I think removing this check is the correct thing to
do.
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The submaintainer credit is not something you can compute purely by
looking at the history and its shape, especially in the presense of
fast-forward merges, and this observation makes the information on
the "via" line unreliable. Let's leave the final determination of
credits up to whoever is making the merge and show them as comments.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When 'git help $cmd' is run without a format option (e.g. -w), the
'man' format is always used. On some platforms, however, manual page
viewers are not often available.
Introduce DEFAULT_HELP_FORMAT make variable in order to allow the
default format configurable at compile time, and set it to HTML when
compiling on Windows (but not Cygwin).
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This only happens in --ignore-missing --dry-run codepath which
presumably nobody should care, but is for completeness.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It was stupid of me to make the API too much cache-entry specific;
the caller may want to check arbitrary pathname without having a
corresponding cache-entry to see if a path is ignored.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git ls-files --exclude=t/ -i" does not show paths in directory t/
that have been added to the index, but it should.
The excluded() API was designed for callers who walk the tree from
the top, checking each level of the directory hierarchy as it
descends if it is excluded, and not even bothering to recurse into
an excluded directory. This would allow us optimize for a common
case by not having to check if the exclude pattern "foo/" matches
when looking at "foo/bar", because the caller should have noticed
that "foo" is excluded and did not even bother to read "foo/bar"
out of opendir()/readdir() to call it.
The code for "ls-files -i" however walks the index linearly, feeding
paths without checking if the leading directory is already excluded.
Introduce a helper function path_excluded() to let this caller
properly call excluded() check for higher hierarchies as necessary.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The global git_version_string currently lives in git.c, but
doesn't have anything to do with the git wrapper. Let's move
it into its own file, where it will be more appropriate to
build more version-related functions.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git grep -e '$pattern'", unlike the case where the patterns are read from
a file, did not treat individual lines in the given pattern argument as
separate regular expressions as it should.
By René Scharfe
* rs/maint-grep-F:
grep: stop leaking line strings with -f
grep: support newline separated pattern list
grep: factor out do_append_grep_pat()
grep: factor out create_grep_pat()
"git checkout" gave progress display even when the standard error
stream was not connected to the tty, which made little sense.
By Avery Pennarun
* ap/checkout-no-progress-for-non-tty:
checkout: no progress messages if !isatty(2).
The 4th arg of "new mode (%o) of %s does not match old mode (%o)%s%s"
is blank string or string " of ". Even mark the string " of " for a
complete i18n, this message is still hard to translate right.
Split it into two slight different messages would make l10n teams happy.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is basically the same as using "file://", but is a
little less subtle for the end user. It also allows relative
paths to be specified.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fixes quite a lot of brokenness when ident information needs to be taken
from the system and cleans up the code.
By Jeff King
* jk/ident-gecos-strbuf: (22 commits)
format-patch: do not use bogus email addresses in message ids
ident: reject bogus email addresses with IDENT_STRICT
ident: rename IDENT_ERROR_ON_NO_NAME to IDENT_STRICT
format-patch: use GIT_COMMITTER_EMAIL in message ids
ident: let callers omit name with fmt_indent
ident: refactor NO_DATE flag in fmt_ident
ident: reword empty ident error message
format-patch: refactor get_patch_filename
ident: trim whitespace from default name/email
ident: use a dynamic strbuf in fmt_ident
ident: use full dns names to generate email addresses
ident: report passwd errors with a more friendly message
drop length limitations on gecos-derived names and emails
ident: don't write fallback username into git_default_name
fmt_ident: drop IDENT_WARN_ON_NO_NAME code
format-patch: use default email for generating message ids
ident: trim trailing newline from /etc/mailname
move git_default_* variables to ident.c
move identity config parsing to ident.c
fmt-merge-msg: don't use static buffer in record_person
...
The way "fetch-pack" that is given multiple references to fetch tried to
remove duplicates was very inefficient.
By Jeff King
* jk/fetch-pack-remove-dups-optim:
fetch-pack: sort incoming heads list earlier
fetch-pack: avoid quadratic loop in filter_refs
fetch-pack: sort the list of incoming refs
add sorting infrastructure for list refs
fetch-pack: avoid quadratic behavior in remove_duplicates
fetch-pack: sort incoming heads
Tighten constness of some local variables in a callchain.
By Michael Haggerty
* mh/fetch-pack-constness:
cmd_fetch_pack(): respect constness of argv parameter
cmd_fetch_pack(): combine the loop termination conditions
cmd_fetch_pack(): handle non-option arguments outside of the loop
cmd_fetch_pack(): declare dest to be const
git usually streams large blobs directly to packs. But there are cases
where git can create large loose blobs (unpack-objects or hash-object
over pipe). Or they can come from other git implementations.
core.bigfilethreshold can also be lowered down and introduce a new
wave of large loose blobs.
Use streaming interface to read/compress/write these blobs in one
go. Fall back to normal way if somehow streaming interface cannot be
used.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git grep -e '$pattern'", unlike the case where the patterns are read from
a file, did not treat individual lines in the given pattern argument as
separate regular expressions as it should.
When adding the information from a tag, put an empty line between the
message of the tag and the commented-out signature verification
information.
At least for the kernel workflow, I often end up re-formatting the message
that people send me in the tag data. In that situation, putting the tag
message and the tag signature verification back-to-back then means that
normal editor "reflow parapgraph" command will get confused and think that
the signature is a continuation of the last message paragraph.
So I always end up having to first add an empty line, and then go back and
reflow the last paragraph. Let's just do it in git directly.
The extra vertical space also makes the verification visually stand out
more from the user-supplied message, so it looks a bit more readable to me
too, but that may be just an odd personal preference.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We can ask git_committer_info to be strict about coming up
with an email, which will die automatically on a poorly
configured machine. This is better than letting invalid
message-ids into the wild.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git status --porcelain" ignored "--branch" option by mistake. The output
for "git status --branch -z" was also incorrect and did not terminate the
record for the current branch name with NUL as asked.
By Jeff King
* jk/maint-status-porcelain-z-b:
status: respect "-b" for porcelain format
status: fix null termination with "-b"
status: refactor null_termination option
commit: refactor option parsing
Callers who ask for ERROR_ON_NO_NAME are not so much
concerned that the name will be blank (because, after all,
we will fall back to using the username), but rather it is a
check to make sure that low-quality identities do not end up
in things like commit messages or emails (whereas it is OK
for them to end up in things like reflogs).
When future commits add more quality checks on the identity,
each of these callers would want to use those checks, too.
Rather than modify each of them later to add a new flag,
let's refactor the flag.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before commit 43ae9f4, we generated the tail of a message id
by calling git_committer_info and parsing the email out of
the result. 43ae9f4 changed to use ident_default_email
directly, so we didn't have to bother with parsing. As a
side effect, it meant we no longer used GIT_COMMITTER_EMAIL
at all.
In general, this is probably reasonable behavior. Either the
default email is sane on your system, or you are using
user.email to provide something sane. The exception is if
you rely on GIT_COMMITTER_EMAIL being set all the time to
override the bogus generated email.
This is unlikely to match anybody's real-life setup, but we
do use it in the test environment. And furthermore, it's
what we have always done, and the change in 43ae9f4 was
about cleaning up, not fixing any bug; we should be
conservative and keep the behavior identical.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If stderr isn't a tty, we shouldn't be printing incremental progress
messages. In particular, this affects 'git checkout -f . >&logfile'
unless you provided -q. And git-new-workdir has no way to provide -q.
It would probably be better to have progress.c check isatty(2) all the time,
but that wouldn't allow things like 'git push --progress' to force progress
reporting to on, so I won't try to solve the general case right now.
Actual fix suggested by Jeff King.
Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When putting whole objects in core is unavoidable, try match object
type and size first before actually inflating.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 4435968 started sorting heads fed to fetch-pack so
that later commits could use more optimized algorithms;
commit 7db8d53 switched the remove_duplicates function to
such an algorithm.
Of course, the sorting is more effective if you do it
_before_ the algorithm in question.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This allows caller to consume large inflated object with a fixed
amount of memory.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
unpack_raw_entry() will not allocate and return decompressed blobs if
they are larger than core.bigFileThreshold. sha1_object() may not be
called on those objects because there's no actual content.
sha1_object() is called later on those objects, where we can safely
use get_data_from_pack() to retrieve blob content for checking.
However we always do that when we definitely need the blob
content. And we often don't.
There are two cases when we may need object content. The first case is
when we find an in-repo blob with the same SHA-1. We need to do
collision test, byte-on-byte. If this test is on, the blob must be
loaded on memory (i.e. no streaming). Normally (e.g. in
fetch/pull/clone) this does not happen because git avoid to send
objects that client already has.
The other case is when --strict is specified and the object in
question is not a blob, which can't happen in reality becase we deal
with large _blobs_ here.
Note: --verify (or git-verify-pack) a pack from current repository
will trigger collision test on every object in the pack, which
effectively disables this patch. This could be easily worked around by
setting GIT_DIR to an imaginary place with no packs.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have a list of refs that we want to compare against the
"match" array. The current code searches the match list
linearly, giving quadratic behavior over the number of refs
when you want to fetch all of them.
Instead, we can compare the lists as we go, giving us linear
behavior.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Having the list sorted means we can avoid some quadratic
algorithms when comparing lists.
These should typically be sorted already, but they do come
from the remote, so let's be extra careful. Our ref-sorting
implementation does a mergesort, so we do not have to care
about performance degrading in the common case that the list
is already sorted.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We remove duplicate entries from the list of refs we are
fed in fetch-pack. The original algorithm is quadratic over
the number of refs, but since the list is now guaranteed to
be sorted, we can do it in linear time.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There's no reason to preserve the incoming order of the
heads we're requested to fetch. By having them sorted, we
can replace some of the quadratic algorithms with linear
ones.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old code cast away the constness of the strings passed to the
function in argument argv[], which could result in their being
modified by filter_refs(). Fix by copying reference names from argv
and putting them into our own array (similarly to how refnames passed
to stdin were already handled).
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If an argument that does not start with '-' is found, the loop is
terminated. So move that check into the for-loop condition.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This makes it more obvious that the code is always executed unless
there is an error, and that the first initialization of nr_heads is
unnecessary.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There is no need for it to be non-const, and this avoids the need
for casting away the constness of an argv element.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The get_patch_filename function expects a commit argument
and uses it to get the sanitized subject line when making a
patch filename. However, we also want to use this same
function for the cover letter, which does not have a commit
object. The current solution is to create a fake commit with
the subject "cover letter". Instead, let's make the
get_patch_filename interface more flexibile, and allow
passing a direct subject.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We try to generate a sane message id for cover letters and
threading by appending some changing bits to the front of
the user's email address. The current code parses the email
out of the results of git_committer_info, but we can do this
much more easily by just calling ident_default_email
ourselves.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The record_person function just parses out the "name" field
of the person line in a commit and adds it to a string_list.
The only reason we need an extra buffer is that the
string_list functions require a NUL-terminated string.
Instead of the static buffer, we can just allocate a
temporary NUL-terminated copy. In addition to removing a
useless limit, this removes the only user of MAX_GITNAME
outside of ident.c.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When reading patterns from a file, we pass the lines as allocated string
buffers to append_grep_pat() and never free them. That's not a problem
because they are needed until the program ends anyway.
However, now that the function duplicates the pattern string, we can
reuse the strbuf after calling that function. This simplifies the code
a bit and plugs a minor memory leak.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The mapping that describe what ref fetched from the remote is used to
update what ref locally is called "refspec", not "respec".
Signed-off-by: Ralf Thielow <ralf.thielow@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function first decides if we want to copy data taken from existing
pack verbatim or we want to encode the data ourselves for the packfile
we are creating and then carries out the decision. Separate the latter
phase into two helper functions, one for the case the data is reused,
the other for the case the data is produced anew.
A little twist is that it can later turn out that we cannot reuse the
data after we initially decide to do so; in such a case, the "reuse"
helper makes a call to "generate" helper. It is easier to follow than
the current fallback code that uses "goto" inside a single large
function.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is because all other places do "xx > big_file_threshold"
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
