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chromium / external / gitster / git-htmldocs / a6499d7ec9607dc1c5a1d0ba7be250423250dcfe / . / git-pack-refs.html
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Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]275/* Workarounds for IE6's broken and incomplete CSS2. */
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Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]306</style>
307<title>git-pack-refs(1)</title>
308</head>
309<body>
310<div id="header">
311<h1>
312git-pack-refs(1) Manual Page
313</h1>
314<h2>NAME</h2>
315<div class="sectionbody">
316<p>git-pack-refs -
317 Pack heads and tags for efficient repository access
318</p>
319</div>
320</div>
321<h2>SYNOPSIS</h2>
322<div class="sectionbody">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]323<div class="para"><p><em>git pack-refs</em> [--all] [--no-prune]</p></div>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]324</div>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]325<h2 id="_description">DESCRIPTION</h2>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]326<div class="sectionbody">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]327<div class="para"><p>Traditionally, tips of branches and tags (collectively known as
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]328<em>refs</em>) were stored one file per ref under <tt>$GIT_DIR/refs</tt>
329directory. While many branch tips tend to be updated often,
330most tags and some branch tips are never updated. When a
331repository has hundreds or thousands of tags, this
332one-file-per-ref format both wastes storage and hurts
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]333performance.</p></div>
334<div class="para"><p>This command is used to solve the storage and performance
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]335problem by stashing the refs in a single file,
336<tt>$GIT_DIR/packed-refs</tt>. When a ref is missing from the
337traditional <tt>$GIT_DIR/refs</tt> hierarchy, it is looked up in this
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]338file and used if found.</p></div>
Junio C Hamanoa6499d72009-04-05 09:18:17[diff] [blame^]339<div class="para"><p>Subsequent updates to branches always create new files under
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]340<tt>$GIT_DIR/refs</tt> hierarchy.</p></div>
341<div class="para"><p>A recommended practice to deal with a repository with too many
Junio C Hamano42b78672007-01-26 09:44:51[diff] [blame]342refs is to pack its refs with <tt>--all --prune</tt> once, and
Junio C Hamanofce7c7e2008-07-02 03:06:38[diff] [blame]343occasionally run <tt>git pack-refs --prune</tt>. Tags are by
Junio C Hamano42b78672007-01-26 09:44:51[diff] [blame]344definition stationary and are not expected to change. Branch
345heads will be packed with the initial <tt>pack-refs --all</tt>, but
346only the currently active branch heads will become unpacked,
Junio C Hamanoa6499d72009-04-05 09:18:17[diff] [blame^]347and the next <tt>pack-refs</tt> (without <tt>--all</tt>) will leave them
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]348unpacked.</p></div>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]349</div>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]350<h2 id="_options">OPTIONS</h2>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]351<div class="sectionbody">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]352<div class="vlist"><dl>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]353<dt>
354--all
355</dt>
356<dd>
357<p>
Junio C Hamano42b78672007-01-26 09:44:51[diff] [blame]358The command by default packs all tags and refs that are already
359packed, and leaves other refs
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]360alone. This is because branches are expected to be actively
361developed and packing their tips does not help performance.
362This option causes branch tips to be packed as well. Useful for
363a repository with many branches of historical interests.
364</p>
365</dd>
366<dt>
Junio C Hamano1d3a6c72007-01-09 11:13:47[diff] [blame]367--no-prune
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]368</dt>
369<dd>
370<p>
Junio C Hamano1d3a6c72007-01-09 11:13:47[diff] [blame]371The command usually removes loose refs under <tt>$GIT_DIR/refs</tt>
372hierarchy after packing them. This option tells it not to.
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]373</p>
374</dd>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]375</dl></div>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]376</div>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]377<h2 id="_author">Author</h2>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]378<div class="sectionbody">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]379<div class="para"><p>Written by Linus Torvalds &lt;torvalds@osdl.org&gt;</p></div>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]380</div>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]381<h2 id="_git">GIT</h2>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]382<div class="sectionbody">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]383<div class="para"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]384</div>
385<div id="footer">
386<div id="footer-text">
Junio C Hamanoa6499d72009-04-05 09:18:17[diff] [blame^]387Last updated 2009-04-05 09:18:10 UTC
Junio C Hamanod8c9d432006-11-07 07:19:13[diff] [blame]388</div>
389</div>
390</body>
391</html>