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Previously, the default history treated bottom commits the same as any
other UNINTERESTING commit, which could force it down side branches.
Consider the following history:
*A--*B---D--*F * marks !TREESAME parent paths
\ /*
`-C-'
When requesting "B..F", B is UNINTERESTING but TREESAME to D. C is
!UNINTERESTING.
So default following would go from D into the irrelevant side branch C
to A, rather than to B. Note also that if there had been an extra
!UNINTERESTING commit B1 between B and D, it wouldn't have gone down C.
Change the default following to test relevant_commit() instead of
!UNINTERESTING, so it can proceed straight from D to B, thus finishing
the traversal of that path.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When using --parents or --children, get_commit_action() previously showed
all merges, even if TREESAME to both parents.
This was intended to tie together the topology of the rewritten parents,
but it was excessive - in fact we only need to show merges that have two
or more relevant parents. Merges at the boundary do not necessarily need
to be shown.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use the BOTTOM flag to define relevance for pruning. Relevant commits
are those that are !UNINTERESTING or BOTTOM, and this allows us to
identify irrelevant side branches (UNINTERESTING && !BOTTOM).
If a merge has relevant parents, and it is TREESAME to them, then do not
let irrelevant parents cause the merge to be treated as !TREESAME.
When considering simplification, don't always include all merges -
merges with exactly one relevant parent can be simplified, if TREESAME
according to the above rule.
These two changes greatly increase simplification in limited, pruned
revision lists.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When performing edge-based operations on the revision graph, it can be
useful to be able to identify the INTERESTING graph's connection(s) to
the bottom commit(s) specified by the user.
Conceptually when the user specifies "A..B" (== B ^A), they are asking
for the history from A to B. The first connection from A onto the
INTERESTING graph is part of that history, and should be considered. If
we consider only INTERESTING nodes and their connections, then we're
really only considering the history from A's immediate descendants to B.
This patch does not change behaviour, but adds a new BOTTOM flag to
indicate the bottom commits specified by the user, ready to be used by
following patches.
We immediately use the BOTTOM flag to return collect_bottom_commits() to
its original approach of examining the pending commit list rather than
the command line. This will ensure alignment of the definition of
"bottom" with future patches.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Reimplement commit 4b7f53da on top of the new simplify-merges
infrastructure, tightening the condition to only consider root parents;
the original version incorrectly dropped parents that were TREESAME to
anything.
Original log message follows.
The merge simplification rule stated in 6546b59 (revision traversal:
show full history with merge simplification, 2008-07-31) still
treated merge commits too specially. Namely, in a history with this
shape:
---o---o---M
/
x---x---x
where three 'x' were on a history completely unrelated to the main
history 'o' and do not touch any of the paths we are following, we
still said that after simplifying all of the parents of M, 'x'
(which is the leftmost 'x' that rightmost 'x simplifies down to) and
'o' (which would be the last commit on the main history that touches
the paths we are following) are independent from each other, and
both need to be kept.
That is incorrect; when the side branch 'x' never touches the paths,
it should be removed to allow M to simplify down to the last commit
on the main history that touches the paths.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When simplifying an odd merge, such as one that used "-s ours", we may
find ourselves TREESAME to apparently redundant parents. Prevent
simplify_merges() from removing every TREESAME parent; if this would
happen reinstate the first TREESAME parent - the one that the default
log would have followed.
This avoids producing a totally disjoint history from the default log
when the default log is a better explanation of the end result, and aids
visualisation of odd merges.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
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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History simplification previously always treated merges as TREESAME
if they were TREESAME to any parent.
While this was consistent with the default behaviour, this could be
extremely unhelpful when searching detailed history, and could not be
overridden. For example, if a merge had ignored a change, as if by "-s
ours", then:
git log -m -p --full-history -Schange file
would successfully locate "change"'s addition but would not locate the
merge that resolved against it.
Futher, simplify_merges could drop the actual parent that a commit
was TREESAME to, leaving it as a normal commit marked TREESAME that
isn't actually TREESAME to its remaining parent.
Now redefine a commit's TREESAME flag to be true only if a commit is
TREESAME to _all_ of its parents. This doesn't affect either the default
simplify_history behaviour (because partially TREESAME merges are turned
into normal commits), or full-history with parent rewriting (because all
merges are output). But it does affect other modes. The clearest
difference is that --full-history will show more merges - sufficient to
ensure that -m -p --full-history log searches can really explain every
change to the file, including those changes' ultimate fate in merges.
Also modify simplify_merges to recalculate TREESAME after removing
a parent. This is achieved by storing per-parent TREESAME flags on the
initial scan, so the combined flag can be easily recomputed.
This fixes some t6111 failures, but creates a couple of new ones -
we are now showing some merges that don't need to be shown.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation of --boundary uses the term "uninteresting", which is
not used or defined anywhere else in the documentation. This is
unhelpful and confusing to anyone who hasn't seen the UNINTERESTING
flag in the source code.
Change to use "excluded", as per revisions.txt.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the example given, P is not TREESAME to E. This doesn't affect the
current result, but it will matter when we change behaviour.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Kevin Bracey <kevin@bracey.fi>
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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Some side branching and odd merging to illustrate various flaws in
revision list scans, particularly when limiting the list.
Many expected failures, which will be gone by the end of the "history
traversal refinements" series.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In preparation for upcoming TREESAME work, check the result for G.t,
which is dropped in "-s ours" merge L. The default rev-list is empty, as
expected - it follows the first parent path where it never existed.
Unfortunately, --ancestry-path is also empty. Merges H J and L are all
TREESAME to 1 parent, so are treated as TREESAME and not shown. This is
clearly undesirable in the case of merge L, which dropped our G.t by
taking the non-ancestry-path version. Document this as a known failure,
and expect "H J L", the 3 merges along the path that had to chose G.t
versions.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When growing the table, take the opportunity to "compact" it by removing
entries with NULL decoration.
Users may have "removed" decorations by passing NULL to
insert_decoration. An object's table entry can't actually be removed
during normal operation, as it would break the linear hash collision
search. But we can remove NULL decoration entries when rebuilding the
table.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation assures users that "A...B" is defined as "A B --not
$(git merge-base --all A B)". This wasn't in fact quite true, because
the calculated merge bases were not sent to add_rev_cmdline().
The main effect of this was that although
git rev-list --ancestry-path A B --not $(git merge-base --all A B)
worked, the simpler form
git rev-list --ancestry-path A...B
failed with a "no bottom commits" error.
Other potential users of bottom commits could also be affected by this
problem, if they examine revs->cmdline_info; I came across the issue in
my proposed history traversal refinements series.
So ensure that the calculated merge bases are sent to add_rev_cmdline(),
flagged with new 'whence' enum value REV_CMD_MERGE_BASE.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Using sed -e '/[0-9]\+//' to find "one or more digits" is not
portable.
Use the Basic Regular Expression '/[0-9][0-9]*//' instead.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* git://git.bogomips.org/git-svn:
git-svn: added an --include-path flag
Git::SVN::*: add missing "NAME" section to perldoc
git-svn: avoid self-referencing mergeinfo
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* maint:
Git 1.8.2.3
t5004: avoid using tar for checking emptiness of archive
t5004: ignore pax global header file
mergetools/kdiff3: do not use --auto when diffing
transport-helper: trivial style cleanup
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix "git cherry-pick $annotated_tag", which was mistakenly rejected.
* mv/sequencer-pick-error-diag:
cherry-pick: picking a tag that resolves to a commit is OK
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Earlier, 21246dbb9e0a (cherry-pick: make sure all input objects are
commits, 2013-04-11) tried to catch an unlikely "git cherry-pick $blob"
as an error, but broke a more important use case to cherry-pick a
tag that points at a commit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* tr/copy-revisions-from-stdin:
read_revisions_from_stdin: make copies for handle_revision_arg
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Test 2 of t5004 checks if a supposedly empty tar archive really
contains no files. 24676f02 (t5004: fix issue with empty archive test
and bsdtar) removed our commit hash to make it work with bsdtar, but
the test still fails on NetBSD and OpenBSD, which use their own tar
that considers a tar file containing only NULs as broken.
Here's what the different archivers do when asked to create a tar
file without entries:
$ uname -v
NetBSD 6.0.1 (GENERIC)
$ gtar --version | head -1
tar (GNU tar) 1.26
$ bsdtar --version
bsdtar 2.8.4 - libarchive 2.8.4
$ : >zero.tar
$ perl -e 'print "\0" x 10240' >tenk.tar
$ sha1 zero.tar tenk.tar
SHA1 (zero.tar) = da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA1 (tenk.tar) = 34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
$ : | tar cf - -T - | sha1
da39a3ee5e6b4b0d3255bfef95601890afd80709
$ : | gtar cf - -T - | sha1
34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
$ : | bsdtar cf - -T - | sha1
34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
So NetBSD's native tar creates an empty file, while GNU tar and bsdtar
both give us 10KB of NULs -- just like git archive with an empty tree.
Now let's see how the archivers handle these two kinds of empty tar
files:
$ tar tf zero.tar; echo $?
tar: Unexpected EOF on archive file
1
$ gtar tf zero.tar; echo $?
gtar: This does not look like a tar archive
gtar: Exiting with failure status due to previous errors
2
$ bsdtar tf zero.tar; echo $?
0
$ tar tf tenk.tar; echo $?
tar: Cannot identify format. Searching...
tar: End of archive volume 1 reached
tar: Sorry, unable to determine archive format.
1
$ gtar tf tenk.tar; echo $?
0
$ bsdtar tf tenk.tar; echo $?
0
NetBSD's tar complains about both, bsdtar happily accepts any of them
and GNU tar doesn't like zero-length archive files. So the safest
course of action is to stay with our block-of-NULs format which is
compatible with GNU tar and bsdtar, as we can't make NetBSD's native
tar happy anyway.
We can simplify our test, however, by taking tar out of the picture.
Instead of extracting the archive and checking for the non-presence of
files, check if the file has a size of 10KB and contains only NULs.
This makes t5004 pass on NetBSD and OpenBSD.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Versions of tar that don't know pax headers -- like the ones in NetBSD 6
and OpenBSD 5.2 -- extract them as regular files. Explicitly ignore the
file created for our global header when checking the list of extracted
files, as this is normal and harmless fall-back behaviour. This fixes
test 3 of t5004 on these platforms.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `kdiff3 --auto` help message is, "No GUI if all conflicts are auto-
solvable." This flag was carried over from the original mergetool
commands. diff_cmd() is for two-way comparisons only so remove the
superfluous flag.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The SVN::Fetcher module is now able to filter for inclusion as well
as exclusion (as used by --ignore-path). Also added tests, documentation
changes and git completion script.
If you have an SVN repository with many top level directories and you
only want a git-svn clone of some of them then using --ignore-path is
difficult as it requires a very long regexp. In this case it's much
easier to filter for inclusion.
[ew: remove trailing whitespace]
Signed-off-by: Paul Walmsley <pjwhams@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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lexgrog(1) relies on the NAME section to find a manpage's subject's
name and description for easy access later using "man -k". Add the
section it expects.
Noticed using lintian.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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When svn.pushmergeinfo is set, the target branch is included in the
mergeinfo if it was previously merged into one of the source branches.
SVN does not do this.
Remove merge target branch path from resulting mergeinfo when
svn.pushmergeinfo is set to better match the behavior of SVN. Update the
svn-mergeinfo-push test.
[ew: 80 columns]
Signed-off-by: Michael Contreras <michael@inetric.com>
Reported-by: Avishay Lavie <avishay.lavie@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The comment was copied from hg-fast-export, not used anymore.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It's possible that the previous tip goes away, we should not assume it's
always present. Fortunately we are only using it to calculate the
progress to display to the user, so only that needs to be fixed.
Also, add a test that triggers this issue.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* git://github.com/git-l10n/git-po:
l10n: zh_CN.po: translate 44 messages (2080t0f0u)
l10n: de.po: translate 44 new messages
l10n: Update Vietnamese translation (2080t0f0u)
l10n: Update Swedish translation (2080t0f0u)
l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed)
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Translate 44 new messages came from git.pot update in c6bc7d4
(l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed))
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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Translate 44 new messages came from git.pot update in
c6bc7d4 (l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed)).
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
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* jk/merge-tree-added-identically:
merge-tree: handle directory/empty conflict correctly
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git-merge-tree causes a null pointer dereference when a directory
entry exists in only one or two of the three trees being compared with
no corresponding entry in the other tree(s).
When this happens, we want to handle the entry as a directory and not
attempt to mark it as a file merge. Do this by setting the entries bit
in the directory mask when the entry is missing or when it is a
directory, only performing the file comparison when we know that a file
entry exists.
Reported-by: Andreas Jacobsen <andreas@andreasjacobsen.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Tested-by: Andreas Jacobsen <andreas@andreasjacobsen.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* fc/remote-bzr:
remote-bzr: avoid bad refs
remote-bzr: convert all unicode keys to str
remote-bzr: access branches only when needed
remote-bzr: delay peer branch usage
remote-bzr: iterate revisions properly
remote-bzr: improve progress reporting
remote-bzr: add option to specify branches
remote-bzr: add custom method to find branches
remote-bzr: improve author sanitazion
remote-bzr: add support for shared repo
remote-bzr: fix branch names
remote-bzr: add support for bzr repos
remote-bzr: use branch variable when appropriate
remote-bzr: fix partially pushed merge
remote-bzr: fixes for branch diverge
remote-bzr: add support to push merges
remote-bzr: always try to update the worktree
remote-bzr: fix order of locking in CustomTree
remote-bzr: delay blob fetching until the very end
remote-bzr: cleanup CustomTree
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Versions of fast-export before v1.8.2 throws a bad 'reset' commands
because of a behavior in transport-helper that is not even needed.
We should ignore them, otherwise we will treat them as branches and
fail.
This was fixed in v1.8.2, but some people use this script in older
versions of git.
Also, check if the ref was a tag, and skip it for now.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Otherwise some versions of bazaar might barf.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* fc/push-with-export-reporting-result:
transport-helper: improve push messages
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If there's already a remote-helper tracking ref, we can fetch the
SHA-1 to report proper push messages (as opposed to always reporting
[new branch]).
The remote-helper currently can specify the old SHA-1 to avoid this
problem, but there's no point in forcing all remote-helpers to be aware
of git commit ids; they should be able to be agnostic of them.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
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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* tr/unpack-entry-use-after-free-fix:
unpack_entry: avoid freeing objects in base cache
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* maint:
completion: zsh: don't override suffix on _detault
Documentation/git-commit: Typo under --edit
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* tr/remote-tighten-commandline-parsing:
remote: 'show' and 'prune' can take more than one remote
remote: check for superfluous arguments in 'git remote add'
remote: add a test for extra arguments, according to docs
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* jn/glossary-revision:
glossary: a revision is just a commit
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zsh is smart enough to add the right suffix while completing, there's no
point in trying to do the same as bash.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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