Commit Graph

33542 Commits

Author SHA1 Message Date
Torstein Hegge
7358a672b2 bisect: Fix log output for multi-parent skip ranges
The bisect log output of skipped commits introduced in f989cac "bisect:
Log possibly bad, skipped commits at bisection end" should obtain the range of
skipped commits from

    git rev-list bad --not good-1 good-2

not

    git rev-list bad --not good-1 --not good-2

when the skipped range contains a merge with good points in each parent.

Signed-off-by: Torstein Hegge <hegge@resisty.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-22 15:40:43 -07:00
Ramkumar Ramachandra
17bf4ff3cd sha1_name: fix error message for @{u}
Currently, when no (valid) upstream is configured for a branch, you get
an error like:

  $ git show @{u}
  error: No upstream configured for branch 'upstream-error'
  error: No upstream configured for branch 'upstream-error'
  fatal: ambiguous argument '@{u}': unknown revision or path not in the working tree.
  Use '--' to separate paths from revisions, like this:
  'git <command> [<revision>...] -- [<file>...]'

The "error: " line actually appears twice, and the rest of the error
message is useless.  In sha1_name.c:interpret_branch_name(), there is
really no point in processing further if @{u} couldn't be resolved, and
we might as well die() instead of returning an error().  After making
this change, you get:

  $ git show @{u}
  fatal: No upstream configured for branch 'upstream-error'

Also tweak a few tests in t1507 to expect this output.

This only turns error() that may be called after we know we are
dealing with an @{upstream} marker into die(), without touching
silent error returns "return -1" from the function.  Any caller that
wants to handle an error condition itself will not be hurt by this
change, unless they want to see the message from error() and then
exit silently without giving its own message, which needs to be
fixed anyway.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-22 12:46:02 -07:00
Thomas Gummerer
d0583da838 prompt: fix show upstream with svn and zsh
Currently the __git_ps1 git prompt gives the following error with a
repository converted by git-svn, when used with zsh:

   __git_ps1_show_upstream:19: bad pattern: svn_remote[
   __git_ps1_show_upstream:45: bad substitution

To reproduce the problem, the __git_ps1_show_upstream function can be
executed in a repository converted with git-svn.  Both those errors are
triggered by spaces after the '['.

Zsh also doesn't support initializing an array with `local var=(...)`.
This triggers the following error:

   __git_ps1_show_upstream:41: bad pattern: svn_upstream=(commit

Use
   local -a
   var=(...)
instead to make is compatible.

This was introduced by 6d158cba (bash completion: Support "divergence
from upstream" messages in __git_ps1), when the script was for bash
only.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Acked-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-22 10:14:01 -07:00
David Aguilar
be4c828b76 imap-send: eliminate HMAC deprecation warnings on Mac OS X
As of Mac OS X 10.7, Apple deprecated all OpenSSL functions due to
OpenSSL ABI instability.  Silence the warnings by using Apple's
CommonCrypto HMAC replacement functions.

[es: reworded commit message; check APPLE_COMMON_CRYPTO instead of
abusing COMMON_DIGEST_FOR_OPENSSL]

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 13:26:37 -07:00
Felipe Contreras
0c27c12d21 remote-hg: tests: fix hg merge
Let's specify a merge tool, otherwise mercurial might open one and hang
our tests waiting for user input.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 11:59:48 -07:00
Felipe Contreras
02a607260f remote-helpers: tests: use python directly
These remote helpers use 'env python', not PYTHON_PATH, so that's where
we should check for the extensions. Otherwise, if 'python' is not
PYTHON_PATH (e.g. /usr/bin/python: Makefile's default), there will be a
mismatch between the python libraries actually accessible to the remote
helpers.

Suggested by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 11:59:44 -07:00
Felipe Contreras
21457f5719 transport-helper: check if the dry-run is supported
Certain remote-helpers (the ones with 'export') would try to push
regardless.

Obviously this is not what the user wants.

Also, add a check for the 'dry-run' option, so remote-helpers can
implement it.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 09:54:05 -07:00
Felipe Contreras
67c9c782da transport-helper: barf when user tries old:new
Otherwise with certain remote helpers (the ones that support 'export'),
the users will be pushing to the wrong branch:

  git push topic:master

Will push the topic branch, as if the user typed:

  git push topic

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 09:53:59 -07:00
Felipe Contreras
5e49f30c85 remote-hg: fix order of configuration comments
The other configurations were added in the wrong place.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 09:33:24 -07:00
Felipe Contreras
92c4369907 remote-hg: trivial configuration note cleanup
Follow the style of the previous configurations.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 09:33:21 -07:00
Felipe Contreras
737044517f completion: regression fix for zsh
zsh completion wrapper doesn't reimplement __gitcompadd(). Although it
should be trivial to do that, let's use __gitcomp_nl() which achieves
exactly the same thing, specially since the suffix ($4) has to be empty.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 09:28:45 -07:00
Dmitry Marakasov
6912ea952b contrib/git-subtree: Use /bin/sh interpreter instead of /bin/bash
Use /bin/sh interpreter instead of /bin/bash for contrib/git-subtree:
it's required for systems which don't use bash by default (for example,
FreeBSD), while there seem to be no bashisms in the script (confirmed
by looking through the source and tesing subtree functionality with
FreeBSD's /bin/sh) to require specifically bash and not the generic
posix shell.

Signed-off-by: Dmitry Marakasov <amdmi3@amdmi3.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-21 09:24:17 -07:00
Junio C Hamano
9134a460e3 Merge git://git.bogomips.org/git-svn
* git://git.bogomips.org/git-svn:
  git-svn: introduce --parents parameter for commands branch and tag
  git-svn: clarify explanation of --destination argument
  git-svn: multiple fetch/branches/tags keys are supported
2013-05-20 16:06:48 -07:00
Junio C Hamano
b3d6e6e707 Documentation/diff-index: mention two modes of operation
"diff-index" can be used to compare a tree with the tracked working
tree files (when used without the --index option), or with the index
(when used with the --index option).

The text however did not say anything about the comparison with the
working tree at all.  Fix this.

Reported-by: Albert Netymk <albertnetymk@gmail.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:50:44 -07:00
René Scharfe
9bf1ac41d2 t5000: test long filenames
Add a file with a long name to the test archive in order to check
entries with pax extended headers.  Also add a check for tar versions
that doen't understand this format.  Those versions should extract the
headers as a regular files.  Add code to check_tar() to interpret the
path header if present, so that our tests work even with those tar
versions.

It's important to use the fallback code only if needed to still be
able to detect git archive errorously creating pax headers as regular
file entries (with a suitable tar version, of course).

The archive used to check for pax header support in tar was generated
using GNU tar 1.26 and its option --format=pax.

Tested successfully on NetBSD 6.1, which has a tar version lacking pax
header support.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:31:46 -07:00
René Scharfe
0a00ee5844 t5000: simplify tar-tree tests
Just compare the archives created by git tar-tree with the ones created
using git archive with the equivalent options, whose contents are
checked already, instead of extracting them again.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:31:45 -07:00
René Scharfe
03d9bc564b t5000: use check_tar for prefix test
Perform the full range of checks against all archived files instead of
looking only at the file type of a few of them.  Also add a test of a
git archive with a prefix ending in with a slash, i.e. adding a full
directory level.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:31:45 -07:00
René Scharfe
deb9c8ed85 t5000: factor out check_tar
Create a helper function that extracts a tar archive and checks its
contents, modelled after check_zip in t5003.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:31:45 -07:00
René Scharfe
1355241bf5 t5000, t5003: create directories for extracted files lazily
Create the directories b and c just before they are needed instead of
up front.  For t5003 it turns out we don't need them at all.  For t5000
it makes the coming modifications easier.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:31:45 -07:00
René Scharfe
c420df7b9b t5000: integrate export-subst tests into regular tests
Instead of creating extra archives for testing substitutions, set the
attribute export-subst and overwrite the marked file with the expected
(expanded) content right between committing and archiving.  Thus
placeholder expansion based on the committed content is performed with
each archive creation and the comparison with the contents of directory
a yields the correct result.  We can then remove the special tests for
export-subst.

Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 15:31:10 -07:00
Tobias Schulte
f4f4c7fc00 git-svn: introduce --parents parameter for commands branch and tag
This parameter is equivalent to the parameter --parents on svn cp commands
and is useful for non-standard repository layouts.

Signed-off-by: Tobias Schulte <tobias.schulte@gliderpilot.de>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2013-05-20 22:05:54 +00:00
Jonathan Nieder
7d82b4af1c git-svn: clarify explanation of --destination argument
The existing documentation for "-d" does not make it obvious whether
its argument is supposed to be a full svn path, a partial svn path,
the glob from the config file, or what.  Clarify the text and add an
example to get the reader started.

Reported-by: Nathan Gray <n8gray@n8gray.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2013-05-20 22:05:47 +00:00
Nathan Gray
eff714bdda git-svn: multiple fetch/branches/tags keys are supported
"git svn" can be configured to use multiple fetch, branches, and tags
refspecs by passing multiple --branches or --tags options at init time
or editing the configuration file later, which can be handy when
working with messy Subversion repositories.  Add a note to the
configuration section documenting how this works.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2013-05-20 22:05:47 +00:00
Amit Bakshi
5dbe064d8c remote-hg: set stdout to binary mode on win32
git clone hangs on windows, and file.write would return errno 22 inside
of mercurial's windows.winstdout wrapper class. This patch sets stdout's
mode to binary, fixing both issues.

[fc: cleaned up]

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:18:43 -07:00
David Aguilar
61067954ce cache.h: eliminate SHA-1 deprecation warnings on Mac OS X
As of Mac OS X 10.7, Apple deprecated all OpenSSL functions due to
OpenSSL ABI instability, thus leading to build diagnostics such as:

	warning: 'SHA1_Init' is deprecated
	(declared at /usr/include/openssl/sha.h:121)

Silence the warnings by using Apple's CommonCrypto SHA-1 replacement
functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().

COMMON_DIGEST_FOR_OPENSSL is defined to instruct
<CommonCrypto/CommonDigest.h> to provide compatibility macros
associating OpenSSL SHA-1 functions with their CommonCrypto
counterparts.

[es: reworded commit message]

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:15:56 -07:00
David Aguilar
4dcd7732db Makefile: add support for Apple CommonCrypto facility
As of Mac OS X 10.7, Apple deprecated all OpenSSL functions due to
OpenSSL ABI instability, thus leading to build warnings.  As a
replacement, Apple encourages developers to migrate to its own (stable)
CommonCrypto facility.

Introduce boilerplate which controls whether Apple's CommonCrypto
facility is employed (enabled by default).  Also add a
NO_APPLE_COMMON_CRYPTO build flag with which the user can opt out to
use OpenSSL instead.

[es: extracted CommonCrypto-related Makefile boilerplate into separate
introductory patch]

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:15:53 -07:00
Mike Crowe
e00dd1e948 describe: Add --first-parent option
Only consider the first parent commit when walking the commit history. This
is useful if you only wish to match tags on your branch after a merge.

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-20 11:09:03 -07:00
Junio C Hamano
de3a5c6da1 Git 1.8.3-rc3
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 12:19:20 -07:00
Junio C Hamano
680ed3eeb6 Merge branch 'fc/doc-style'
* fc/doc-style:
  documentation: trivial style cleanups
2013-05-17 12:16:49 -07:00
Junio C Hamano
8639f3e49f Merge branch 'dw/asciidoc-sources-are-dot-txt-files'
* dw/asciidoc-sources-are-dot-txt-files:
  CodingGuidelines: Documentation/*.txt are the sources
2013-05-17 12:16:44 -07:00
Filipe Cabecinhas
6c642a8786 compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
Due to a bug in the Darwin kernel, write(2) calls have a maximum size
of INT_MAX bytes.

Introduce a new compat function, clipped_write(), that only writes
at most INT_MAX bytes and returns the number of bytes written, as
a substitute for write(2), and allow platforms that need this to
enable it from the build mechanism with NEEDS_CLIPPED_WRITE.

Set it for Mac OS X by default.  It may be necessary to include this
function on Windows, too.

Signed-off-by: Filipe Cabecinhas <filcab+git@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 12:16:30 -07:00
Felipe Contreras
0460ed2c93 documentation: trivial style cleanups
White-spaces, missing braces, standardize --[no-]foo.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 12:09:21 -07:00
Junio C Hamano
e86d0a37b4 Merge git://ozlabs.org/~paulus/gitk
* git://ozlabs.org/~paulus/gitk:
  gitk: Update Swedish translation (304t)
2013-05-17 11:55:02 -07:00
John Keeping
1f197a1de4 difftool: fix dir-diff when file does not exist in working tree
Commit 02c5631 (difftool --dir-diff: symlink all files matching the
working tree, 2013-03-14) does not handle the case where a file that is
being compared does not exist in the working tree.  Fix this by checking
for existence explicitly before running git-hash-object.

Reported-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 11:46:53 -07:00
Felipe Contreras
31eb360b43 remote-bzr: fixes for older versions of bzr
Down to v2.0, by using older but still valid interfaces.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 11:43:36 -07:00
Sandor Bodo-Merle
a70ae5873d remote-bzr: fix old organization destroy
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 10:59:08 -07:00
Ramkumar Ramachandra
9678696c4a prompt: colorize ZSH prompt
Add colors suitable for use in the ZSH prompt.  Having learnt that the
ZSH equivalent of PROMPT_COMMAND is precmd (), you can now use
GIT_PS1_SHOWCOLORHINTS with ZSH.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 10:01:28 -07:00
Ramkumar Ramachandra
18562ad1a0 prompt: factor out gitstring coloring logic
So that we can extend it with ZSH-colors in a later patch.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 10:01:23 -07:00
Ramkumar Ramachandra
15a54fb809 prompt: introduce GIT_PS1_STATESEPARATOR
A typical prompt looks like:

    artagnon|master *=:~/src/git$
                   ^
                   why do we have this space?

Nobody has branch names that end with +, *, =, < or > anyway, so it
doesn't serve the purpose of disambiguation.

Make this separator configurable via GIT_PS1_STATESEPARATOR.  This means
that you can set it to "" and get this prompt:

    artagnon|master*=:~/src/git$

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 10:01:17 -07:00
Richard Hansen
66fa1b2c35 Documentation/merge-options.txt: restore -e option
It looks like commit f8246281af
unintentionally removed the documentation for the `-e` option.

Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 16:40:00 -07:00
Peter Krefting
9aa66a040f gitk: Update Swedish translation (304t)
Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2013-05-17 09:25:25 +10:00
Felipe Contreras
629b60a77d Revert "remote-hg: update bookmarks when pulling"
This reverts commit 24317ef32a.

Different versions of Mercurial have different arguments for
bookmarks.updatefromremote(), while it should be possible to call the
right function with the right arguments depending on the version, it's
safer to restore the old behavior for now.

Reported by Rodney Lorrimar.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 15:54:18 -07:00
Junio C Hamano
84cf246670 strbuf_branchname(): do not double-expand @{-1}~22
If you were on 'frotz' branch before you checked out your current
branch, "git merge @{-1}~22" means the same as "git merge frotz~22".

The strbuf_branchname() function, when interpret_branch_name() gives
up resolving "@{-1}~22" fully, returns "frotz" and tells the caller
that it only resolved "@{-1}" part of the input, mistakes this as a
total failure, and appends the whole thing to the result, yielding
"frotz@{-1}~22", which does not make any sense.

Inspect the return value from interpret_branch_name() a bit more
carefully.  When it errored out without consuming anything, we will
get -1 and we should return the whole thing.  Otherwise, we should
append the remainder (i.e. "~22" in the earlier example) to the
partially resolved name (i.e. "frotz").

The test suite adds enough number of checkout to make @{-12} in the
last test in t0100 that tried to check "we haven't flipped branches
that many times" error case succeed; raise the number to a hundred.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 12:53:59 -07:00
Dale R. Worley
3244eb9b5a git-submodule.txt: Clarify 'init' and 'add' subcommands.
Describe how 'add' sets the submodule's logical name, which is used in
the configuration entry names.

Clarify that 'init' only sets up the configuration entries for
submodules that have already been added elsewhere.  Describe that
<path> arguments limit the submodules that are configured.

Signed-off-by: Dale Worley <worley@ariadne.com>
Acked-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 12:01:31 -07:00
Kevin Bracey
141efdba57 revision.c: make default history consider bottom commits
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>
2013-05-16 11:51:10 -07:00
Kevin Bracey
bf3418b08b revision.c: don't show all merges for --parents
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>
2013-05-16 11:51:10 -07:00
Kevin Bracey
4d826608e9 revision.c: discount side branches when computing TREESAME
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>
2013-05-16 11:51:10 -07:00
Kevin Bracey
7f34a46ff5 revision.c: add BOTTOM flag for commits
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>
2013-05-16 11:51:10 -07:00
Kevin Bracey
143f1eafdb simplify-merges: drop merge from irrelevant side branch
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>
2013-05-16 11:51:09 -07:00
Kevin Bracey
9c129eab99 simplify-merges: never remove all TREESAME parents
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>
2013-05-16 11:51:09 -07:00