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This adds the counterpart of git-update-ref that lets you read
and create "symbolic refs". By default it uses a symbolic link
to represent ".git/HEAD -> refs/heads/master", but it can be compiled
to use the textfile symbolic ref.
The places that did 'readlink .git/HEAD' and 'ln -s refs/heads/blah
.git/HEAD' have been converted to use new git-symbolic-ref command, so
that they can deal with either implementation.
Signed-off-by: Junio C Hamano <junio@twinsun.com>
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It was ignoring the generation number of the commit when naming 2nd
and later parents, showing "(linus^n)^2" for any <n> incorrectly as
"linus^2".
Signed-off-by: Junio C Hamano <junkio@cox.net>
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We may end up trying to print a commit we do not actually have but we
know about its existence only because another commit we do have refers
to it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
(cherry picked from b204feab9371040982d2c60611925e7693106c84 commit)
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It mistakenly failed to output anything when given a single head.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The --list option is what 'git branch' without parameter should
have been; it shows the one-line commit message for each branch
name. The --independent option is used to filter out commits
that can be reachable from other commits, to make detection of
fast forward condition in multi-head merge easier.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This would make things easier to use for Octopus.
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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Earlier show-branch gave names only to commits reachable via first
parent ancestry chain. Change the naming code to name everybody.
The original idea was to stop at the first merge point in the
topological order, and --more=<n> to show commits until we show <n>
more extra merge points. However depending on the order of how we
discover the commits, it additionally showed parents of the <n>th
merge points, which was unnecessary.
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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When showing only one branch a lot of default output becomes redundant,
so clean it up a bit, and document what is shown. Retire the earlier
implementation "git-show-branches-script".
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The 'git show-branches' command turns out to be reasonably useful,
but painfully slow. So rewrite it in C, using ideas from merge-base
while enhancing it a bit more.
- Unlike show-branches, it can take --heads (show me all my
heads), --tags (show me all my tags), or --all (both).
- It can take --more=<number> to show beyond the merge-base.
- It shows the short name for each commit in the extended SHA1
syntax.
- It can find merge-base for more than two heads.
Examples:
$ git show-branch --more=6 HEAD
is almost the same as "git log --pretty=oneline --max-count=6".
$ git show-branch --merge-base master mhf misc
finds the merge base of the three given heads.
$ git show-branch master mhf misc
shows logs from the top of these three branch heads, up to their
common ancestor commit is shown.
$ git show-branch --all --more=10
is poor-man's gitk, showing all the tags and heads, and
going back 10 commits beyond the merge base of those refs.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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