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125 lines
3.5 KiB
125 lines
3.5 KiB
git-rev-parse(1) |
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NAME |
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---- |
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git-rev-parse - Pick out and massage parameters. |
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SYNOPSIS |
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-------- |
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'git-rev-parse' [ --option ] <args>... |
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DESCRIPTION |
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----------- |
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Many git Porcelainish commands take mixture of flags |
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(i.e. parameters that begin with a dash '-') and parameters |
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meant for underlying `git-rev-list` command they use internally |
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and flags and parameters for other commands they use as the |
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downstream of `git-rev-list`. This command is used to |
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distinguish between them. |
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OPTIONS |
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------- |
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--revs-only:: |
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Do not output flags and parameters not meant for |
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`git-rev-list` command. |
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--no-revs:: |
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Do not output flags and parameters meant for |
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`git-rev-list` command. |
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--flags:: |
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Do not output non-flag parameters. |
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--no-flags:: |
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Do not output flag parameters. |
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--default <arg>:: |
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If there is no parameter given by the user, use `<arg>` |
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instead. |
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--verify:: |
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The parameter given must be usable as a single, valid |
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object name. Otherwise barf and abort. |
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--sq:: |
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Usually the output is made one line per flag and |
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parameter. This option makes output a single line, |
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properly quoted for consumption by shell. Useful when |
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you expect your parameter to contain whitespaces and |
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newlines (e.g. when using pickaxe `-S` with |
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`git-diff-\*`). |
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--not:: |
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When showing object names, prefix them with '^' and |
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strip '^' prefix from the object names that already have |
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one. |
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--symbolic:: |
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Usually the object names are output in SHA1 form (with |
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possible '^' prefix); this option makes them output in a |
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form as close to the original input as possible. |
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--all:: |
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Show all refs found in `$GIT_DIR/refs`. |
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--show-prefix:: |
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When the command is invoked from a directory show the |
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path of the current directory relative to the top-level |
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directory. |
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<args>...:: |
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Flags and parameters to be parsed. |
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SPECIFYING REVISIONS |
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-------------------- |
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A revision parameter typically names a commit object. They use |
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what is called an 'extended SHA1' syntax. |
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* The full SHA1 object name (40-byte hexadecimal string), or |
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a substring of such that is unique within the repository. |
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E.g. dae86e1950b1277e545cee180551750029cfe735 and dae86e both |
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name the same commit object if there are no other object in |
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your repository whose object name starts with dae86e. |
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* A symbolic ref name. E.g. 'master' typically means the commit |
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object referenced by $GIT_DIR/refs/heads/master. If you |
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happen to have both heads/master and tags/master, you can |
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explicitly say 'heads/master' to tell GIT which one you mean. |
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* A suffix '^' to a revision parameter means the first parent of |
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that commit object. '^<n>' means the <n>th parent (i.e. 'rev^' |
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is equivalent to 'rev^1'). As a special rule, |
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'rev^0' means the commit itself and is used when 'rev' is the |
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object name of a tag object that refers to a commit object. |
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* A suffix '~<n>' to a revision parameter means the commit |
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object that is the <n>th generation grand-parent of the named |
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commit object, following only the first parent. I.e. rev~3 is |
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equivalent to rev^^^ which is equivalent to rev^1^1^1. |
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'git-rev-parse' also accepts a prefix '^' to revision parameter, |
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which is passed to 'git-rev-list'. Two revision parameters |
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concatenated with '..' is a short-hand for writing a range |
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between them. I.e. 'r1..r2' is equivalent to saying '^r1 r2' |
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Author |
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------ |
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Written by Linus Torvalds <torvalds@osdl.org> and |
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Junio C Hamano <junkio@cox.net> |
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Documentation |
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-------------- |
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Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. |
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GIT |
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--- |
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Part of the link:git.html[git] suite |
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