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} +div.imageblock img { border: 1px solid silver; } +span.image img { border-style: none; } + +dl { + margin-top: 0.8em; + margin-bottom: 0.8em; +} +dt { + margin-top: 0.5em; + margin-bottom: 0; + font-style: italic; +} +dd > *:first-child { + margin-top: 0; +} + +ul, ol { + list-style-position: outside; +} +ol.olist2 { + list-style-type: lower-alpha; +} + +div.tableblock > table { + border-color: #527bbd; + border-width: 3px; +} +thead { + font-family: sans-serif; + font-weight: bold; +} +tfoot { + font-weight: bold; +} + +div.hlist { + margin-top: 0.8em; + margin-bottom: 0.8em; +} +td.hlist1 { + vertical-align: top; + font-style: italic; + padding-right: 0.8em; +} +td.hlist2 { + vertical-align: top; +} + +@media print { + div#footer-badges { display: none; } +} +include::./stylesheets/xhtml11-manpage.css[] +/* Workarounds for IE6's broken and incomplete CSS2. */ + +div.sidebar-content { + background: #ffffee; + border: 1px solid silver; + padding: 0.5em; +} +div.sidebar-title, div.image-title { + font-family: sans-serif; + font-weight: bold; + margin-top: 0.0em; + margin-bottom: 0.5em; +} + +div.listingblock div.content { + border: 1px solid silver; + background: #f4f4f4; + padding: 0.5em; +} + +div.quoteblock-content { + padding-left: 2.0em; +} + +div.exampleblock-content { + border-left: 2px solid silver; + padding-left: 0.5em; +} +</style> +<title>git-rev-parse(1)</title> +</head> +<body> +<div id="header"> +<h1> +git-rev-parse(1) Manual Page +</h1> +<h2>NAME</h2> +<div class="sectionbody"> +<p>git-rev-parse - + Pick out and massage parameters. +</p> +</div> +</div> +<h2>SYNOPSIS</h2> +<div class="sectionbody"> +<p><em>git-rev-parse</em> [ --option ] <args>…</p> +</div> +<h2>DESCRIPTION</h2> +<div class="sectionbody"> +<p>Many git Porcelainish commands take mixture of flags +(i.e. parameters that begin with a dash <em>-</em>) and parameters +meant for underlying <tt>git-rev-list</tt> command they use internally +and flags and parameters for other commands they use as the +downstream of <tt>git-rev-list</tt>. This command is used to +distinguish between them.</p> +</div> +<h2>OPTIONS</h2> +<div class="sectionbody"> +<dl> +<dt> +--revs-only +</dt> +<dd> +<p> + Do not output flags and parameters not meant for + <tt>git-rev-list</tt> command. +</p> +</dd> +<dt> +--no-revs +</dt> +<dd> +<p> + Do not output flags and parameters meant for + <tt>git-rev-list</tt> command. +</p> +</dd> +<dt> +--flags +</dt> +<dd> +<p> + Do not output non-flag parameters. +</p> +</dd> +<dt> +--no-flags +</dt> +<dd> +<p> + Do not output flag parameters. +</p> +</dd> +<dt> +--default <arg> +</dt> +<dd> +<p> + If there is no parameter given by the user, use <tt><arg></tt> + instead. +</p> +</dd> +<dt> +--verify +</dt> +<dd> +<p> + The parameter given must be usable as a single, valid + object name. Otherwise barf and abort. +</p> +</dd> +<dt> +--sq +</dt> +<dd> +<p> + Usually the output is made one line per flag and + parameter. This option makes output a single line, + properly quoted for consumption by shell. Useful when + you expect your parameter to contain whitespaces and + newlines (e.g. when using pickaxe <tt>-S</tt> with + <tt>git-diff-*</tt>). +</p> +</dd> +<dt> +--not +</dt> +<dd> +<p> + When showing object names, prefix them with <em>^</em> and + strip <em>^</em> prefix from the object names that already have + one. +</p> +</dd> +<dt> +--symbolic +</dt> +<dd> +<p> + Usually the object names are output in SHA1 form (with + possible <em>^</em> prefix); this option makes them output in a + form as close to the original input as possible. +</p> +</dd> +<dt> +--all +</dt> +<dd> +<p> + Show all refs found in <tt>$GIT_DIR/refs</tt>. +</p> +</dd> +<dt> +--show-prefix +</dt> +<dd> +<p> + When the command is invoked from a subdirectory, show the + path of the current directory relative to the top-level + directory. +</p> +</dd> +<dt> +--show-cdup +</dt> +<dd> +<p> + When the command is invoked from a subdirectory, show the + path of the top-level directory relative to the current + directory (typically a sequence of "../", or an empty string). +</p> +</dd> +<dt> +--since=datestring, --after=datestring +</dt> +<dd> +<p> + Parses the date string, and outputs corresponding + --max-age= parameter for git-rev-list command. +</p> +</dd> +<dt> +--until=datestring, --before=datestring +</dt> +<dd> +<p> + Parses the date string, and outputs corresponding + --min-age= parameter for git-rev-list command. +</p> +</dd> +<dt> +<args>… +</dt> +<dd> +<p> + Flags and parameters to be parsed. +</p> +</dd> +</dl> +</div> +<h2>SPECIFYING REVISIONS</h2> +<div class="sectionbody"> +<p>A revision parameter typically, but not necessarily, names a +commit object. They use what is called an <em>extended SHA1</em> +syntax.</p> +<ul> +<li> +<p> +The full SHA1 object name (40-byte hexadecimal string), or + a substring of such that is unique within the repository. + E.g. dae86e1950b1277e545cee180551750029cfe735 and dae86e both + name the same commit object if there are no other object in + your repository whose object name starts with dae86e. +</p> +</li> +<li> +<p> +A symbolic ref name. E.g. <em>master</em> typically means the commit + object referenced by $GIT_DIR/refs/heads/master. If you + happen to have both heads/master and tags/master, you can + explicitly say <em>heads/master</em> to tell git which one you mean. +</p> +</li> +<li> +<p> +A suffix <em>^</em> to a revision parameter means the first parent of + that commit object. <em>^<n></em> means the <n>th parent (i.e. + <em>rev^</em> + is equivalent to <em>rev^1</em>). As a special rule, + <em>rev^0</em> means the commit itself and is used when <em>rev</em> is the + object name of a tag object that refers to a commit object. +</p> +</li> +<li> +<p> +A suffix <em>~<n></em> to a revision parameter means the commit + object that is the <n>th generation grand-parent of the named + commit object, following only the first parent. I.e. rev~3 is + equivalent to rev^^^ which is equivalent to rev^1^1^1. +</p> +</li> +<li> +<p> +A suffix <em>^</em> followed by an object type name enclosed in + brace pair (e.g. <tt>v0.99.8^{commit}</tt>) means the object + could be a tag, and dereference the tag recursively until an + object of that type is found or the object cannot be + dereferenced anymore (in which case, barf). <tt>rev^0</tt> + introduced earlier is a short-hand for <tt>rev^{commit}</tt>. +</p> +</li> +<li> +<p> +A suffix <em>^</em> followed by an empty brace pair + (e.g. <tt>v0.99.8^{}</tt>) means the object could be a tag, + and dereference the tag recursively until a non-tag object is + found. +</p> +</li> +</ul> +<p><em>git-rev-parse</em> also accepts a prefix <em>^</em> to revision parameter, +which is passed to <em>git-rev-list</em>. Two revision parameters +concatenated with <em>..</em> is a short-hand for writing a range +between them. I.e. <em>r1..r2</em> is equivalent to saying <em>^r1 r2</em></p> +<p>Here is an illustration, by Jon Loeliger. Both node B and C are +a commit parents of commit node A. Parent commits are ordered +left-to-right.</p> +<div class="literalblock"> +<div class="content"> +<pre><tt>G H I J + \ / \ / + D E F + \ | / + \ | / + \|/ + B C + \ / + \ / + A</tt></pre> +</div></div> +<div class="literalblock"> +<div class="content"> +<pre><tt>A = = A^0 +B = A^ = A^1 = A~1 +C = A^2 = A^2 +D = A^^ = A^1^1 = A~2 +E = B^2 = A^^2 +F = B^3 = A^^3 +G = A^^^ = A^1^1^1 = A~3 +H = D^2 = B^^2 = A^^^2 = A~2^2 +I = F^ = B^3^ = A^^3^ +J = F^2 = B^3^2 = A^^3^2</tt></pre> +</div></div> +</div> +<h2>Author</h2> +<div class="sectionbody"> +<p>Written by Linus Torvalds <torvalds@osdl.org> and +Junio C Hamano <junkio@cox.net></p> +</div> +<h2>Documentation</h2> +<div class="sectionbody"> +<p>Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.</p> +</div> +<h2>GIT</h2> +<div class="sectionbody"> +<p>Part of the <a href="git.html">git(7)</a> suite</p> +</div> +<div id="footer"> +<div id="footer-text"> +Last updated 27-Dec-2005 00:16:39 PDT +</div> +</div> +</body> +</html> 