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803e705104
Teach git-name-rev(1) to format the given revisions instead of creating symbolic names. Sometimes you want to format commits. Most of the time you’re walking the graph, e.g. getting a range of commits like `master..topic`. That’s a job for git-log(1). But sometimes you might want to format commits that you encounter on demand: • Full hashes in running text that you might want to pretty-print • git-last-modified(1) outputs full hashes that you can do the same with • git-cherry(1) has `-v` for commit subject, but maybe you want something else? But now you can’t use git-log(1), git-show(1), or git-rev-list(1): • You can’t feed commits piecemeal to these commands, one input for one output; they block until standard in is closed • You can’t feed a list of possibly duplicate commits, like the output of git-last-modified(1); they effectively deduplicate the output Beyond these two points there’s also the input massage problem: you cannot feed mixed input (revisions mixed with arbitrary text). One might hope that git-cat-file(1) can save us. But it doesn’t support pretty formats. But there is one command that already both handles revisions as arguments, revisions on standard input, and even revisions mixed in with arbitrary text. Namely git-name-rev(1). Teach it to work in a format mode where the output for each revision is the pretty output (implies `--name-only`). This can be used to format any revision expression when given as arguments, and all full commit hashes in running text on stdin. Just bring the hashes (to the pipeline). We will pretty print them. Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
121 lines
3.5 KiB
Plaintext
121 lines
3.5 KiB
Plaintext
git-name-rev(1)
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===============
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NAME
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----
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git-name-rev - Find symbolic names for given revs
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SYNOPSIS
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--------
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[verse]
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'git name-rev' [--tags] [--refs=<pattern>] [--format=<pretty>]
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( --all | --annotate-stdin | <commit-ish>... )
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DESCRIPTION
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-----------
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Finds symbolic names suitable for human digestion for revisions given in any
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format parsable by 'git rev-parse'.
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OPTIONS
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-------
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--format=<pretty>::
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--no-format::
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Format revisions instead of outputting symbolic names. The
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default is `--no-format`.
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+
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Implies `--name-only`. The negation `--no-format` implies
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`--no-name-only` (the default for the command).
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--tags::
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Do not use branch names, but only tags to name the commits
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--refs=<pattern>::
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Only use refs whose names match a given shell pattern. The pattern
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can be a branch name, a tag name, or a fully qualified ref name. If
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given multiple times, use refs whose names match any of the given shell
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patterns. Use `--no-refs` to clear any previous ref patterns given.
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--exclude=<pattern>::
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Do not use any ref whose name matches a given shell pattern. The
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pattern can be one of branch name, tag name or fully qualified ref
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name. If given multiple times, a ref will be excluded when it matches
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any of the given patterns. When used together with --refs, a ref will
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be used as a match only when it matches at least one --refs pattern and
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does not match any --exclude patterns. Use `--no-exclude` to clear the
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list of exclude patterns.
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--all::
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List all commits reachable from all refs
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--annotate-stdin::
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Transform stdin by substituting all the 40-character SHA-1
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hexes (say $hex) with "$hex ($rev_name)". When used with
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--name-only, substitute with "$rev_name", omitting $hex
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altogether. This option was called `--stdin` in older versions
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of Git.
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+
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For example:
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+
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-----------
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$ cat sample.txt
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An abbreviated revision 2ae0a9cb82 will not be substituted.
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The full name after substitution is 2ae0a9cb8298185a94e5998086f380a355dd8907,
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while its tree object is 70d105cc79e63b81cfdcb08a15297c23e60b07ad
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$ git name-rev --annotate-stdin <sample.txt
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An abbreviated revision 2ae0a9cb82 will not be substituted.
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The full name after substitution is 2ae0a9cb8298185a94e5998086f380a355dd8907 (master),
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while its tree object is 70d105cc79e63b81cfdcb08a15297c23e60b07ad
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$ git name-rev --name-only --annotate-stdin <sample.txt
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An abbreviated revision 2ae0a9cb82 will not be substituted.
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The full name after substitution is master,
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while its tree object is 70d105cc79e63b81cfdcb08a15297c23e60b07ad
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-----------
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--name-only::
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Instead of printing both the SHA-1 and the name, print only
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the name. If given with --tags the usual tag prefix of
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"tags/" is also omitted from the name, matching the output
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of `git-describe` more closely.
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--no-undefined::
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Die with error code != 0 when a reference is undefined,
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instead of printing `undefined`.
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--always::
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Show uniquely abbreviated commit object as fallback.
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EXAMPLES
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--------
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Given a commit, find out where it is relative to the local refs. Say somebody
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wrote you about that fantastic commit 33db5f4d9027a10e477ccf054b2c1ab94f74c85a.
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Of course, you look into the commit, but that only tells you what happened, but
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not the context.
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Enter 'git name-rev':
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------------
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% git name-rev 33db5f4d9027a10e477ccf054b2c1ab94f74c85a
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33db5f4d9027a10e477ccf054b2c1ab94f74c85a tags/v0.99~940
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------------
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Now you are wiser, because you know that it happened 940 revisions before v0.99.
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Another nice thing you can do is:
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------------
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% git log | git name-rev --annotate-stdin
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------------
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GIT
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---
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Part of the linkgit:git[1] suite
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