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In commit b7bb760d5ed4881422673d32f869d140221d3564 (Fix revision
log diff setup, avoid unnecessary diff generation) an optimization was
made to avoid unnecessary diff generation. This was partly fixed in
99516e35d096f41e7133cacde8fbed8ee9a3ecd0 (Fix embarrassing "git log
--follow" bug). The '--diff-filter' option also needs the diff machinery
in action.
Signed-off-by: Arjen Laarhoven <arjen@yaph.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead of warning the user that it is expecting git log output from
the standard input (and waiting for the user to type the log from
the keyboard, which is a silly thing to do), default to traverse from
HEAD when there is no rev parameter given and the standard input is
a tty.
This factors out a useful helper "add_head()" from builtin-diff.c to a
more appropriate place revision.c while renaming it to more descriptive
name add_head_to_pending(), as that is what the function is about.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* lt/rev-list-gitlink:
Fix rev-list when showing objects involving submodules
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* lt/rev-list-interactive:
Fix parent rewriting in --early-output
revision walker: mini clean-up
Enhance --early-output format
Add "--early-output" log flag for interactive GUI use
Simplify topo-sort logic
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We cannot tell a node that has been checked and found not to be
interesting (which does not have the TREECHANGE flag) from a
node that hasn't been checked if it is interesting or not,
without relying on something else, such as object->parsed.
But an object can get the "parsed" flag for other reasons.
Which means that "TREECHANGE" has the wrong polarity.
This changes the way how the path pruning logic marks an
uninteresting commits. From now on, we consider a commit
interesting by default, and explicitly mark the ones we decided
to prune. The flag is renamed to "TREESAME".
Then, this fixes the logic to show the early output with
incomplete pruning. It basically says "a commit that has
TREESAME set is kind-of-UNINTERESTING", but obviously in a
different way than an outright UNINTERESTING commit. Until we
parse and examine enough parents to determine if a commit
becomes surely "kind-of-UNINTERESTING", we avoid rewriting
the ancestry so that later rounds can fix things up.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function mark_tree_uninteresting() assumed that the tree entries
are blob when they are not trees. This is not so. Since we do
not traverse into submodules (yet), the gitlinks should be ignored.
In general, we should try to start moving away from using the
"S_ISLNK()" like things for internal git state. It was a mistake to
just assume the numbers all were same across all systems in the first
place. This implementation converts to the "object_type", and then
uses a case statement.
Noticed by Ilari on IRC.
Test script taken from an earlier version by Dscho.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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reverse_diff was a bit-value in disguise, it's merged in the flags now.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This removes the unnecessary indirection of "revs->prune_fn",
since that function is always the same one (or NULL), and there
is in fact not even an abstraction reason to make it a function
(i.e. its not called from some other file and doesn't allow us
to keep the function itself static or anything like that).
It then just replaces it with a bit that says "prune or not",
and if not pruning, every commit gets TREECHANGE.
That in turn means that
- if (!revs->prune_fn || (flags & TREECHANGE))
- if (revs->prune_fn && !(flags & TREECHANGE))
just become
- if (flags & TREECHANGE)
- if (!(flags & TREECHANGE))
respectively.
Together with adding the "single_parent()" helper function, the "complex"
conditional now becomes
if (!(flags & TREECHANGE) && rev->dense && single_parent(commit))
continue;
Also indirection of "revs->dense" checking is thrown away the
same way, because TREECHANGE bit is set appropriately now.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This makes --early-output a bit more advanced, and actually makes it
generate multiple "Final output:" headers as it updates things
asynchronously. I realize that the "Final output:" line is now illogical,
since it's not really final until it also says "done", but
It now _always_ generates a "Final output:" header in front of any commit
list, and that output header gives you a *guess* at the maximum number of
commits available. However, it should be noted that the guess can be
completely off: I do a reasonable job estimating it, but it is not meant
to be exact.
So what happens is that you may get output like this:
- at 0.1 seconds:
Final output: 2 incomplete
.. 2 commits listed ..
- half a second later:
Final output: 33 incomplete
.. 33 commits listed ..
- another half a second after that:
Final output: 71 incomplete
.. 71 commits listed ..
- another half second later:
Final output: 136 incomplete
.. 100 commits listed: we hit the --early-output limit, and
.. will only output 100 commits, and after this you'll not
.. see an "incomplete" report any more since you got as much
.. early output as you asked for!
- .. and then finally:
Final output: 73106 done
.. all the commits ..
The above is a real-life scenario on my current kernel tree after having
flushed all the caches.
Tested with the experimental gitk patch that Paul sent out, and by looking
at the actual log output (and verifying that my commit count guesses
actually match real life fairly well).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This adds support for "--early-output[=n]" as a flag to the "git log"
family of commands. This allows GUI programs to state that they want to
get some output early, in order to be able to show at least something
quickly, even if the full output may take longer to generate.
If no count is specified, a default count of a hundred commits will be
used, although the actual numbr of commits output may be smaller
depending on how many commits were actually found in the first tenth of
a second (or if *everything* was found before that, in which case no
early output will be provided, and only the final list is made
available).
When the full list is generated, there will be a "Final output:" string
prepended to it, regardless of whether any early commits were shown or
not, so that the consumer can always know the difference between early
output and the final list.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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.. by not using quite so much indirection.
This currently grows the "struct commit" a bit, which could be avoided by
using a union for "util" and "indegree" (the topo-sort used to use "util"
anyway, so you cannot use them together), but for now the goal of this was
to simplify, not optimize.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* maint:
Whip post 1.5.3.4 maintenance series into shape.
rebase -i: use diff plumbing instead of porcelain
Do not remove distributed configure script
git-archive: document --exec
git-reflog: document --verbose
git-config: handle --file option with relative pathname properly
clear_commit_marks(): avoid deep recursion
git add -i: Remove unused variables
git add -i: Fix parsing of abbreviated hunk headers
git-config: don't silently ignore options after --list
Clean up "git log" format with DIFF_FORMAT_NO_OUTPUT
Fix embarrassing "git log --follow" bug
Conflicts:
RelNotes
git-rebase--interactive.sh
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It turns out that I completely broke "git log --follow" with my recent
patch to revision.c ("Fix revision log diff setup, avoid unnecessary diff
generation", commit b7bb760d5ed4881422673d32f869d140221d3564).
Why? Because --follow obviously requires the diff machinery to function,
exactly the same way pickaxe does.
So everybody is away right now, but considering that nobody even noticed
this bug, I don't think it matters. But for the record, here's the trivial
one-liner fix (well, two, since I also fixed the comment).
Because of the nature of the bug, if you ask for patches when following
(which is one of the things I normally do), the bug is hidden, because
then the request for diff output will automatically also enable the diffs
themselves.
So while "git log --follow <filename>" didn't work, adding a "-p"
magically made it work again even without this fix.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Factor out the code to parse --date=<format> parameter to revision
walkers into a separate function, parse_date_format(). This function
is passed a string and converts it to an enum date_format:
- "relative" => DATE_RELATIVE
- "iso8601" or "iso" => DATE_ISO8601
- "rfc2822" => DATE_RFC2822
- "short" => DATE_SHORT
- "local" => DATE_LOCAL
- "default" => DATE_NORMAL
In the event that none of these strings is found, the function die()s.
Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We used to incorrectly start calculating diffs whenever any argument but
'-z' was recognized by the diff options parsing. That was bogus, since not
all arguments result in diffs being needed, so we just waste a lot of time
and effort on calculating diffs that don't matter.
This actually also fixes another bug in "git log". Try this:
git log -C
and notice how it prints an extra empty line in between log entries, even
though it never prints the actual diff (because we didn't ask for any diff
format, so the diff machinery never prints anything).
With this patch, that bogus empty line is gone, because "revs->diff" is
never set. So this isn't just a "wasted time and effort" issue, it's also
a slight semantic fix.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We used to rely on the fact that cherry-pick would trigger the code path
to set limited = 1 in handle_commit(), when an uninteresting commit was
encountered.
However, when cherry picking between two independent branches, i.e. when
there are no merge bases, and there is only linear development (which can
happen when you cvsimport a fork of a project), no uninteresting commit
will be encountered.
So set limited = 1 when --cherry-pick was asked for.
Noticed by Martin Bähr.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git log" family of commands, even when run from a subdirectory,
do not limit the revision range with the current directory as
the path limiter, but with double-dash without any paths after
it, i.e. "git log --" do so. It was a mistake to have a
difference between "git log --" and "git log" introduced in
commit ae563542bf10fa8c33abd2a354e4b28aca4264d7 (First cut at
libifying revlist generation).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The --walk-reflogs logic and the --reverse logic are completely
incompatible with one another. Attempting to use both at the same
time leads to confusing results that sometimes violates the user's
formatting options or ignores the user's request to see the reflog
message and timestamp.
Unfortunately the implementation of both of these features is glued
onto the side of the revision walking machinary in such a way that
they are probably not going to be easy to make them compatible with
each other. Rather than offering the user confusing results we are
better off bailing out with an error message until such a time as
the implementations can be refactored to be compatible.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With this option git-log prints log message size
just before the corresponding message.
Porcelain tools could use this to speedup parsing
of git-log output.
Note that size refers to log message only. If also
patch content is shown its size is not included.
In case it is not possible to know the size upfront
size value is set to zero.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When asking "git log -g --all", clearly you want to see only those refs
that do have reflogs, but you do not want it to fail, either.
So instead of die()ing, complain about it, but move on to the other refs.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The flag "no_walk" is present in struct rev_info since a long time, but
so far has been in use exclusively by "git show".
With this flag, you can see all your refs, ordered by date of the last
commit:
$ git log --abbrev-commit --pretty=oneline --decorate --all --no-walk
which is extremely helpful if you have to juggle with a lot topic
branches, and do not remember in which one you introduced that uber
debug option, or simply want to get an overview what is cooking.
(Note that the "git log" invocation above does not output the same as
$ git show --abbrev-commit --pretty=oneline --decorate --all --quiet
since "git show" keeps the alphabetic order that "--all" returns the
refs in, even if the option "--date-order" was passed.)
For good measure, this also adds the "--do-walk" option which overrides
"--no-walk".
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These options to log family were too long to type. Give them
shorter synonyms.
Fix the parsing of the long options while at it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This removes duplicate parents properly, making gitk happy again.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Now we can use all internally supported date formats with
git log --date=<format>
syntax. Earlier, we only allowed relative/local/default.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If you say --cherry-pick, you do not want to see patches which are
in the upstream. If you specify paths with that, what you usually
expect is that only those parts of the patches are looked at which
actually touch the given paths.
With this patch, that expectation is met.
Noticed by Sam Vilain.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we simplify history due to path limits, the parents list
for a rewritten commit can end up having duplicates. Instead of
filtering them out in the output codepath like earlier commit
88494423 did, remove them much earlier, when the parent
information actually gets rewritten.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This change lets you use the format.subjectprefix config option to override the
default subject prefix.
Signed-off-by: Adam Roben <aroben@apple.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ok, I've really held off doing this too damn long, because I'm lazy, and I
was always hoping that somebody else would do it.
But no, people keep asking for it, but nobody actually did anything, so I
decided I might as well bite the bullet, and instead of telling people
they could add a "--follow" flag to "git log" to do what they want to do,
I decided that it looks like I just have to do it for them..
The code wasn't actually that complicated, in that the diffstat for this
patch literally says "70 insertions(+), 1 deletions(-)", but I will have
to admit that in order to get to this fairly simple patch, you did have to
know and understand the internal git diff generation machinery pretty
well, and had to really be able to follow how commit generation interacts
with generating patches and generating the log.
So I suspect that while I was right that it wasn't that hard, I might have
been expecting too much of random people - this patch does seem to be
firmly in the core "Linus or Junio" territory.
To make a long story short: I'm sorry for it taking so long until I just
did it.
I'm not going to guarantee that this works for everybody, but you really
can just look at the patch, and after the appropriate appreciative noises
("Ooh, aah") over how clever I am, you can then just notice that the code
itself isn't really that complicated.
All the real new code is in the new "try_to_follow_renames()" function. It
really isn't rocket science: we notice that the pathname we were looking
at went away, so we start a full tree diff and try to see if we can
instead make that pathname be a rename or a copy from some other previous
pathname. And if we can, we just continue, except we show *that*
particular diff, and ever after we use the _previous_ pathname.
One thing to look out for: the "rename detection" is considered to be a
singular event in the _linear_ "git log" output! That's what people want
to do, but I just wanted to point out that this patch is *not* carrying
around a "commit,pathname" kind of pair and it's *not* going to be able to
notice the file coming from multiple *different* files in earlier history.
IOW, if you use "git log --follow", then you get the stupid CVS/SVN kind
of "files have single identities" kind of semantics, and git log will just
pick the identity based on the normal move/copy heuristics _as_if_ the
history could be linearized.
Put another way: I think the model is broken, but given the broken model,
I think this patch does just about as well as you can do. If you have
merges with the same "file" having different filenames over the two
branches, git will just end up picking _one_ of the pathnames at the point
where the newer one goes away. It never looks at multiple pathnames in
parallel.
And if you understood all that, you probably didn't need it explained, and
if you didn't understand the above blathering, it doesn't really mtter to
you. What matters to you is that you can now do
git log -p --follow builtin-rev-list.c
and it will find the point where the old "rev-list.c" got renamed to
"builtin-rev-list.c" and show it as such.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Johannes and Marco discovered that "git log -z" spent cycles in diff even
though there is no need to actually compute diffs.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This patch introduces --extended-regexp and --regexp-ignore-case options to
tune what kind of patterns the pattern-limiting options (--grep, --author,
...) accept.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This fixes a crash in broken repositories where random commits
suddenly disappear.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This adds --date={local,relative,default} option to log family of commands,
to allow displaying timestamps in user's local timezone, relative time, or
the default format.
Existing --relative-date option is a synonym of --date=relative; we could
probably deprecate it in the long run.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* jc/cherry:
Documentation: --cherry-pick
git-log --cherry-pick A...B
Refactor patch-id filtering out of git-cherry and git-format-patch.
Add %m to '--pretty=format:'
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An earlier --subject-prefix patch forgot that format-patch is
not the only codepath that adds the "[PATCH]" prefix, and broke
everybody else in the log family.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This is meant to be a saner replacement for "git-cherry".
When used with "A...B", this filters out commits whose patch
text has the same patch-id as a commit on the other side. It
would probably most useful to use with --left-right.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This fixes a problem reported by Randal Schwartz:
>I finally tracked down all the (albeit inconsequential) errors I was getting
>on both OpenBSD and OSX. It's the warn() function in usage.c. There's
>warn(3) in BSD-style distros. It'd take a "great rename" to change it, but if
>someone with better C skills than I have could do that, my linker and I would
>appreciate it.
It was annoying to me, too, when I was doing some mergetool testing on
Mac OS X, so here's a fix.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: "Randal L. Schwartz" <merlyn@stonehenge.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* jc/fpl:
git-log --first-parent: show only the first parent log
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This removes slightly more lines than it adds, but the real reason for
doing this is that future optimizations will require more setup of the
tree descriptor, and so we want to do it in one place.
Also renamed the "desc.buf" field to "desc.buffer" just to trigger
compiler errors for old-style manual initializations, making sure I
didn't miss anything.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: James Bowes <jbowes@dangerouslyinc.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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If your development history does not have fast-forward merges,
i.e. the "first parent" of commits in your history are special
than other parents, this option gives a better overview of the
evolution of a particular branch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This uses diff-tree --quiet machinery to terminate the internal
diff-tree between a commit and its parents via revs.pruning (not
revs.diffopt) as soon as we find enough about the tree change.
With respect to the optionally given pathspec, we are interested
if the tree of commit is identical to the parent's, only adds
new paths to the parent's, or there are other differences. As
soon as we find out that there is one such other kind of
difference, we do not have to compare the rest of the tree.
Because we do not call standard diff_addremove/diff_change, we
instruct the diff-tree machinery to stop early by setting
has_changes when we say we found the trees to be different.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This explains how tree_difference variable is used, and updates two
places where the code knows symbolic constant REV_TREE_SAME is 0.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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When the list is truly limited and get_revision_1() returned NULL,
the code incorrectly returned it without switching to boundary emiting
mode. Silly.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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This moves the code to set SHOWN on the commit from get_revision_1()
back to get_revision(), so that the bit means what it originally
meant: this commit has been given back to the caller.
Also it fixes the --reverse breakage Dscho pointed out.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This removes the flag internally used by revision traversal to
decide which commits are indeed boundaries and renames it to
CHILD_SHOWN. builtin-bundle uses the symbol for its
verification, but I think the logic it uses it is wrong. The
flag is still useful but it is local to the git-bundle, so it is
renamed to PREREQ_MARK.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This cleans up the boundary processing in the commit walker. It
- rips out the boundary logic from the commit walker. Placing
"negative" commits in the revs->commits list was Ok if all we
cared about "boundary" was the UNINTERESTING limiting case,
but conceptually it was wrong.
- makes get_revision_1() function to walk the commits and return
the results as if there is no funny postprocessing flags such
as --reverse, --skip nor --max-count.
- makes get_revision() function the postprocessing phase:
If reverse is given, wait for get_revision_1() to give
everything that it would normally give, and then reverse it
before consuming.
If skip is given, skip that many before going further.
If max is given, stop when we gave out that many.
Now that we are about to return one positive commit, mark
the parents of that commit to be potential boundaries
before returning, iff we are doing the boundary processing.
Return the commit.
- After get_revision() finishes giving out all the positive
commits, if we are doing the boundary processing, we look at
the parents that we marked as potential boundaries earlier,
see if they are really boundaries, and give them out.
It loses more code than it adds, even when the new gc_boundary()
function, which is purely for early optimization, is counted.
Note that this patch is purely for eyeballing and discussion
only. It breaks git-bundle's verify logic because the logic
does not use BOUNDARY_SHOW flag for its internal computation
anymore. After we correct it not to attempt to affect the
boundary processing by setting the BOUNDARY_SHOW flag, we can
remove BOUNDARY_SHOW from revision.h and use that bit assignment
for the new CHILD_SHOWN flag.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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