The new flag leak_pending in struct rev_info can be used to prevent
prepare_revision_walk from freeing the list of pending objects. It
will still forget about them, so it really is leaked. This behaviour
may look weird at first, but it can be useful if the pointer to the
list is saved before calling prepare_revision_walk.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function is a combination of the static get_reference and
add_pending_object. It can be used to easily queue objects by hash.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
HEAD and MERGE_HEAD (among other branch tips) should never hold a
tag. That can only be caused by broken tools and is cumbersome to fix
by an end user with:
$ git update-ref HEAD $(git rev-parse HEAD^{commit})
which may look like a magic to a new person.
Be easy, warn users (so broken tools can be fixed if they bother to
report) and move on.
Be robust, if the given SHA-1 cannot be resolved to a commit object,
die (therefore return value is always valid).
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Often we want to verify everything reachable from a given set of commits
are present in our repository and connected without a gap to the tips of
our refs. We used to do this for this purpose:
$ rev-list --objects $commits_to_be_tested --not --all
Even though this is good enough for catching missing commits and trees,
we show the object name but do not verify their existence, let alone their
well-formedness, for the blob objects at the leaf level.
Add a new "--verify-object" option so that we can catch missing and broken
blobs as well.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the commit specified as the bottom of the commit range has a direct
parent that has another child commit that contributed to the resulting
history, "rev-list --ancestry-path" was confused and listed that side
history as well, due to the command line parser subtlety corrected by the
previous commit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Given a complex set of revision specifiers on the command line, it is too
late to look at the flags of the objects in the initial traversal list at
the beginning of limit_list() in order to determine what the objects the
end-user explicitly listed on the command line were. The process to move
objects from the pending array to the traversal list may have marked
objects that are not mentioned as UNINTERESTING, when handle_commit()
marked the parents of UNINTERESTING commits mentioned on the command line
by calling mark_parents_uninteresting().
This made "rev-list --ancestry-path ^A ..." to mistakenly list commits
that are descendants of A's parents but that are not descendants of A
itself, as ^A from the command line causes A and its parents marked as
UNINTERESTING before coming to limit_list(), and we try to enumerate the
commits that are descendants of these commits that are UNINTERESTING
before we start walking the history.
It actually is too late even if we inspected the pending object array
before calling prepare_revision_walk(), as some of the same objects might
have been mentioned twice, once as positive and another time as negative.
The "rev-list --some-option A --not --all" command may want to notice,
even if the resulting set is empty, that the user showed some interest in
"A" and do something special about it.
Prepare a separate array to keep track of what syntactic element was used
to cause each object to appear in the pending array from the command line,
and populate it as setup_revisions() parses the command line.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allocating and then immediately freeing temporary memory a million times
when listing a million objects is distasteful.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are two copies of traverse_commit_list callback that show the object
name followed by pathname the object was found, to produce output similar
to "rev-list --objects".
Unify them.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of barfing, simply ignore bad object names seen in the
input. This is useful when reading from "git notes list" output
that may refer to objects that have already been garbage collected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add log.abbrevCommit config variable as a convenience for users who
often use --abbrev-commit with git log and friends. Allow the option
to be overridden with --no-abbrev-commit. Per 635530a2fc and 4f62c2bc57,
the config variable is ignored when log is given "--pretty=raw".
(Also, a drive-by spelling correction in git log's short help.)
Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we later add a command in the log family that by default limit
its operation to the current subdirectory, we would need to resurrect
the "a lone ':' on the command line means no pathspec whatsoever".
Now the codepath was cleaned up, we can do so in one place. Leave a
note to mark where it is for later generations.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the command line has "--" disambiguator, we take the remainder of
argv[] as "prune_data", but when --stdin is given at the same time,
we need to append to the existing prune_data and end up attempting to
realloc(3) it. That would not work.
Fix it by consistently using append_prune_data() throughout the input
processing. Also avoid counting the number of existing paths in the
function over and over again.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As v1.6.0-rc2~42 (2008-07-31) explains, even pseudo-options like --not
and --glob that need to be parsed in order with revisions should be
marked handled by handle_revision_opt to avoid an error when
parse_revision_opt callers like "git shortlog" encounter them.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As v1.6.0-rc2~42 (Allow "non-option" revision options in
parse_option-enabled commands, 2008-07-31) explains, options handled
by setup_revisions fall into two categories:
1. global options like --topo-order handled by parse_revision_opt,
which can take detached arguments and can be parsed in advance;
2. pseudo-options that must be parsed in order with their revision
counterparts, like --not and --all.
The global options are taken care of by handle_revision_opt; the
pseudo-options are currently in a deeply indented portion of
setup_revisions. Give them their own function for easier reading.
The only goal is to make setup_revisions easier to read straight
through. No functional change intended.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With most command line options, later instances of an option
override earlier ones. With cumulative options like
"--notes", however, there is no way to say "forget the
--notes I gave you before".
Let's have --no-notes trigger this forgetting, so that:
git log --notes=foo --no-notes --notes=bar
will show only the "bar" notes.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We already have --show-notes, but it has a few shortcomings:
1. Using --show-notes=<ref> implies that we should also
show the default notes. Which means you also need to
use --no-standard-notes if you want to suppress them.
2. It is negated by --no-notes, which doesn't match.
3. It's too long to type. :)
This patch introduces --notes, which behaves exactly like
--show-notes, except that using "--notes=<ref>" does not
imply showing the default notes.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is in preparation for more notes-related revision
command-line options.
The "suppress_default_notes" option is renamed to
"use_default_notes", and is now a tri-state with values less
than one indicating "not set". If the value is "not set",
then we show default refs if and only if no other refs were
given.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There's no need to use an extra pointer, which just ends up
leaking memory. The fact that the list is empty tells us the
same thing.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
No need to do it ourselves when there is a library function.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Introduce --min-parents and --max-parents options which limit the
revisions to those commits which have at least (or at most) that many
commits, where negative arguments for --max-parents= denote infinity
(i.e. no upper limit).
In particular:
--max-parents=1 is the same as --no-merges;
--min-parents=2 is the same as --merges;
--max-parents=0 shows only roots; and
--min-parents=3 shows only octopus merges
Using --min-parents=n and --max-parents=m with n>m gives you what you ask
for (i.e. nothing) for obvious reasons, just like when you give --merges
(show only merge commits) and --no-merges (show only non-merge commits) at
the same time.
Also, introduce --no-min-parents and --no-max-parents to do the obvious
thing for convenience.
We compute the number of parents only when we limit by that, so there
is no performance impact when there are no limiters.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, commit marks (left, right, boundary, cherry) are output right
before the commit sha1, which makes it difficult to copy sha1s. Sample
output for "git log --oneline --cherry":
=049c269 t6007: test rev-list --cherry
Change this to
= 049c269 t6007: test rev-list --cherry
which matches exactly the current output of "git log --graph".
Leave "git rev-list" output as is (no space) so that they do not break.
Adjust "git-svn" which uses "git log --pretty=raw --boundary".
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
At the porcelain level, because by definition there are many more contributors
than integrators, it makes sense to give a handy short-hand for --right-only
used with --cherry-mark and --no-merges. Make it so.
In other words, this provides "git cherry with rev-list interface".
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
for marking those commits which "--cherry-pick" would drop.
The marker for those commits is '=' because '-' denotes a boundary
commit already, even though 'git cherry' uses it.
Nonequivalent commits are denoted '+' unless '--left-right' is used.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, we have identical code for generating revision marks ('<',
'>', '-') in 5 places.
Factor out the code to a single function get_revision_mark() for easier
maintenance and extensibility.
Note that the check for !!revs in graph.c (which gets removed
effectively by this patch) is superfluous.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The existing "--cherry-pick" does not work with unsymmetric ranges
(A..B) for obvious reasons.
Introduce "--left-only" and "--right-only" which limit the output to
commits on the respective sides of a symmetric range (i.e. only "<"
resp. ">" commits as per "--left-right").
This is especially useful for things like
git log --cherry-pick --right-only @{u}...
which is much more flexible (and descriptive) than
git cherry @{u} | sed -ne 's/^+ //p'
and potentially more useful than
git log --cherry-pick @{u}...
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add commit_list prefix to insert_by_date function and to sort_by_date,
so it's clear that these functions refer to commit_list structure.
Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The reflog-walking mechanism is based on the regular
revision traversal. We just rewrite the parents of each
commit in fake_reflog_parent to point to the commit in the
next reflog entry instead of the real parents.
However, the regular revision traversal tries not to show
the same commit twice, and so sets the SHOWN flag on each
commit it shows. In a reflog, however, we may want to see
the same commit more than once if it appears in the reflog
multiple times (which easily happens, for example, if you do
a reset to a prior state).
The fake_reflog_parent function takes care of this by
clearing flags, including SHOWN. Unfortunately, it does so
at the very end of the function, and it is possible to
return early from the function if there is no fake parent to
set up (e.g., because we are at the very first reflog entry
on the branch). In such a case the flag is not cleared, and
the entry is skipped by the revision traversal machinery as
already shown.
You can see this by walking the log of a ref which is set to
its very first commit more than once (the test below shows
such a situation). In this case the reflog walk will fail to
show the entry for the initial creation of the ref.
We don't want to simply move the flag-clearing to the top of
the function; we want to make sure flags set during the
fake-parent installation are also cleared. Instead, let's
hoist the flag-clearing out of the fake_reflog_parent
function entirely. It's not really about fake parents
anyway, and the only caller is the get_revision machinery.
Reported-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
By passing the path to a submodule in opt->submodule, the function can
be used to walk history in the named submodule repository, instead of
the toplevel repository.
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Update the definition and callers of string_list_append to use the
string_list as the first argument. This helps make the string_list
API easier to use by being more consistent.
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a --count option that, instead of actually listing the commits,
merely counts them.
This is mostly geared towards script use, and to this end it acts
specially when used with --left-right: it outputs the left and right
counts separately. Previously, scripts would have to run a shell loop
or small inline script over to achieve the same. (Without
--left-right, a simple |wc -l does the job.)
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When using --ancestry-path together with history simplification (typically
triggered by path limiting), history simplification would get in the way of
--ancestry-path by prematurely removing the parent links between commits on
which the ancestry path calculations are made.
This patch disables this history simplification when --ancestry-path is
enabled. This is similar to what e.g. --full-history already does.
The patch also includes a simple testcase verifying that --ancestry-path
works together with path limiting.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To show the last two commits with one command, one might try
1) git show -s master~2..
2) git show -s ^master~2 master
3) git show -s master^ master
4) git show -s -2 master
Choice (3) works because both commits are listed on the command line.
Choices (1) and (2) have worked ever since v1.6.4-rc~3 (Make 'git
show' more useful, 2009-07-13) disabled --no-walk in this case because
there is no other useful meaning for them to have. Unfortunately, (4)
does not work: it outputs only one commit, because --no-walk stays on.
So disable --no-walk in this case so ‘git show’ and future ‘git
cherry-pick’ can behave as expected.
As a side effect, this unfortunately changes the meaning of
‘git log --oneline --decorate --no-walk -5 --all’: instead of listing
five refs, after this patch that command would list the five most
recent commits.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Without this patch at least IBM VisualAge C 5.0 (I have 5.0.2) on AIX
5.1 fails to compile git.
enum style is inconsistent already, with some enums declared on one
line, some over 3 lines with the enum values all on the middle line,
sometimes with 1 enum value per line... and independently of that the
trailing comma is sometimes present and other times absent, often
mixing with/without trailing comma styles in a single file, and
sometimes in consecutive enum declarations.
Clearly, omitting the comma is the more portable style, and this patch
changes all enum declarations to use the portable omitted dangling
comma style consistently.
Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"rev-list A..H" computes the set of commits that are ancestors of H, but
excludes the ones that are ancestors of A. This is useful to see what
happened to the history leading to H since A, in the sense that "what does
H have that did not exist in A" (e.g. when you have a choice to update to
H from A).
x---x---A---B---C <-- topic
/ \
x---x---x---o---o---o---o---M---D---E---F---G <-- dev
/ \
x---o---o---o---o---o---o---o---o---o---o---o---N---H <-- master
The result in the above example would be the commits marked with caps
letters (except for A itself, of course), and the ones marked with 'o'.
When you want to find out what commits in H are contaminated with the bug
introduced by A and need fixing, however, you might want to view only the
subset of "A..B" that are actually descendants of A, i.e. excluding the
ones marked with 'o'. Introduce a new option --ancestry-path to compute
this set with "rev-list --ancestry-path A..B".
Note that in practice, you would build a fix immediately on top of A and
"git branch --contains A" will give the names of branches that you would
need to merge the fix into (i.e. topic, dev and master), so this may not
be worth paying the extra cost of postprocessing.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a revision is specified, it happens not to have any commits, don't
use the default revision. By doing so, surprising and undesired
behavior can happen, such as showing the reflog for HEAD when a branch
was specified.
[jc: squashed a test from René]
Signed-off-by: Dave Olszewski <cxreg@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With this patch, you can set notes.displayRef to a glob that points at
your favourite notes refs, e.g.,
[notes]
displayRef = refs/notes/*
Then git-log and friends will show notes from all trees.
Thanks to Junio C Hamano for lots of feedback, which greatly
influenced the design of the entire series and this commit in
particular.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Acked-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Traditionally, "show" defaulted to "show --cc" (dense combined patch), but
asking for combined patch with "show -c" didn't turn the patch output
format on; the placement of this logic in setup_revisions() dates back to
cd2bdc5 (Common option parsing for "git log --diff" and friends,
2006-04-14).
This unfortunately cannot be done as a trivial change of "if dense
combined is asked, default to patch format" done in setup_revisions() to
"if any combined is asked, default to patch format", as "diff-tree -c"
needs to default to raw, while "diff-tree --cc" needs to default to patch,
and they share the codepath. These command specific defaults are now
handled in the new "tweak" callback that can be customized by individual
command implementations.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
So far the last parameter to setup_revisions() was to specify the default
ref when the command line did not give any (typically "HEAD"). This changes
it to take a pointer to a structure so that we can add other information without
touching too many codepaths in later patches.
There is no functionality change.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The --cherry-pick logic starts by counting the commits on each side,
so that it can filter away commits on the bigger one. However, so
far it missed an opportunity for optimization: it doesn't need to do
any work if either side is empty.
This in particular helps the common use-case 'git rebase -i HEAD~$n':
it internally uses --cherry-pick, but since HEAD~$n is a direct
ancestor the left side is always empty.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Historically, any grep filter in "git log" family of commands were taken
as restricting to commits with any of the words in the commit log message.
However, the user almost always want to find commits "done by this person
on that topic". With "--all-match" option, a series of grep patterns can
be turned into a requirement that all of them must produce a match, but
that makes it impossible to ask for "done by me, on either this or that"
with:
log --author=me --committer=him --grep=this --grep=that
because it will require both "this" and "that" to appear.
Change the "header" parser of grep library to treat the headers specially,
and parse it as:
(all-match-OR (HEADER-AUTHOR me)
(HEADER-COMMITTER him)
(OR
(PATTERN this)
(PATTERN that) ) )
Even though the "log" command line parser doesn't give direct access to
the extended grep syntax to group terms with parentheses, this change will
cover the majority of the case the users would want.
This incidentally revealed that one test in t7002 was bogus. It ran:
log --author=Thor --grep=Thu --format='%s'
and expected (wrongly) "Thu" to match "Thursday" in the author/committer
date, but that would never match, as the timestamp in raw commit buffer
does not have the name of the day-of-the-week.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Giving "Notes" information in the default output format of "log" and
"show" is a sensible progress (the user has asked for it by having the
notes), but for some commands (e.g. "format-patch") spewing notes into the
formatted commit log message without being asked is too aggressive.
Enable notes output only for "log", "show", "whatchanged" by default and
only when the user didn't ask any specific --pretty/--format from the
command line; users can explicitly override this default with --show-notes
and --no-notes option.
Parts of tests are taken from Jeff King's fix.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe