Show only names of changed files.
--name-status::
- Show only names and status of changed files.
+ Show only names and status of changed files. See the description
+ of the `--diff-filter` option on what the status letters mean.
--color::
Show colored diff.
</li>\r
<li>\r
<p>\r
-repacks the local repository and performs other housekeeping tasks. Running\r
-without <tt>—prune</tt> is a safe operation even while other ones are in progress.\r
+repacks the local repository and performs other housekeeping tasks.\r
</p>\r
</li>\r
</ol>\r
<dd>\r
<div class="listingblock">\r
<div class="content">\r
-<pre><tt>$ git gc <b>(1)</b>\r
-$ git gc --prune</tt></pre>\r
+<pre><tt>$ git gc <b>(1)</b></tt></pre>\r
</div></div>\r
<ol>\r
<li>\r
$ git log -p ORIG_HEAD.. arch/i386 include/asm-i386 <b>(4)</b>\r
$ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <b>(5)</b>\r
$ git reset --hard ORIG_HEAD <b>(6)</b>\r
-$ git gc --prune <b>(7)</b>\r
+$ git gc <b>(7)</b>\r
$ git fetch --tags <b>(8)</b></tt></pre>\r
</div></div>\r
<ol>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 07-Jan-2008 07:51:12 UTC\r
+Last updated 23-Apr-2008 16:08:38 UTC\r
</div>\r
</div>\r
</body>\r
repository health reasonably well.
<2> check how many loose objects there are and how much
disk space is wasted by not repacking.
-<3> repacks the local repository and performs other housekeeping tasks. Running
-without `--prune` is a safe operation even while other ones are in progress.
+<3> repacks the local repository and performs other housekeeping tasks.
Repack a small project into single pack.::
+
------------
$ git gc <1>
-$ git gc --prune
------------
+
<1> pack all the objects reachable from the refs into one pack,
$ git log -p ORIG_HEAD.. arch/i386 include/asm-i386 <4>
$ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <5>
$ git reset --hard ORIG_HEAD <6>
-$ git gc --prune <7>
+$ git gc <7>
$ git fetch --tags <8>
------------
+
</p>\r
<p><strong>NOTE</strong>: this is a possibly dangerous operation; do <strong>not</strong> use\r
it unless you understand what it does. If you clone your\r
-repository using this option, then delete branches in the\r
-source repository and then run <a href="git-gc.html">git-gc(1)</a> using the\r
-<em>--prune</em> option in the source repository, it may remove\r
-objects which are referenced by the cloned repository.</p>\r
+repository using this option and then delete branches (or use any\r
+other git command that makes any existing commit unreferenced) in the\r
+source repository, some objects may become unreferenced (or dangling).\r
+These objects may be removed by normal git operations (such as git-commit[1])\r
+which automatically call git-gc[1]. If these objects are removed and\r
+were referenced by the cloned repository, then the cloned repository\r
+will become corrupt.</p>\r
</dd>\r
<dt>\r
--reference <repository>\r
require fewer objects to be copied from the repository\r
being cloned, reducing network and local storage costs.\r
</p>\r
+<p><strong>NOTE</strong>: see NOTE to --shared option.</p>\r
</dd>\r
<dt>\r
--quiet\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 28-Feb-2008 00:25:37 UTC\r
+Last updated 23-Apr-2008 16:08:34 UTC\r
</div>\r
</div>\r
</body>\r
+
*NOTE*: this is a possibly dangerous operation; do *not* use
it unless you understand what it does. If you clone your
-repository using this option, then delete branches in the
-source repository and then run linkgit:git-gc[1] using the
-'--prune' option in the source repository, it may remove
-objects which are referenced by the cloned repository.
+repository using this option and then delete branches (or use any
+other git command that makes any existing commit unreferenced) in the
+source repository, some objects may become unreferenced (or dangling).
+These objects may be removed by normal git operations (such as git-commit[1])
+which automatically call git-gc[1]. If these objects are removed and
+were referenced by the cloned repository, then the cloned repository
+will become corrupt.
an already existing repository as an alternate will
require fewer objects to be copied from the repository
being cloned, reducing network and local storage costs.
++
+*NOTE*: see NOTE to --shared option.
--quiet::
-q::
</dt>\r
<dd>\r
<p>\r
- Show only names and status of changed files.\r
+ Show only names and status of changed files. See the description\r
+ of the <tt>--diff-filter</tt> option on what the status letters mean.\r
</p>\r
</dd>\r
<dt>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 22-Apr-2008 08:17:12 UTC\r
+Last updated 23-Apr-2008 16:08:34 UTC\r
</div>\r
</div>\r
</body>\r
</dt>\r
<dd>\r
<p>\r
- Show only names and status of changed files.\r
+ Show only names and status of changed files. See the description\r
+ of the <tt>--diff-filter</tt> option on what the status letters mean.\r
</p>\r
</dd>\r
<dt>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 22-Apr-2008 08:17:12 UTC\r
+Last updated 23-Apr-2008 16:08:35 UTC\r
</div>\r
</div>\r
</body>\r
</dt>\r
<dd>\r
<p>\r
- Show only names and status of changed files.\r
+ Show only names and status of changed files. See the description\r
+ of the <tt>--diff-filter</tt> option on what the status letters mean.\r
</p>\r
</dd>\r
<dt>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 22-Apr-2008 08:17:15 UTC\r
+Last updated 23-Apr-2008 16:08:35 UTC\r
</div>\r
</div>\r
</body>\r
</dt>\r
<dd>\r
<p>\r
- Show only names and status of changed files.\r
+ Show only names and status of changed files. See the description\r
+ of the <tt>--diff-filter</tt> option on what the status letters mean.\r
</p>\r
</dd>\r
<dt>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 22-Apr-2008 08:17:16 UTC\r
+Last updated 23-Apr-2008 16:08:36 UTC\r
</div>\r
</div>\r
</body>\r
</dt>\r
<dd>\r
<p>\r
- Show only names and status of changed files.\r
+ Show only names and status of changed files. See the description\r
+ of the <tt>--diff-filter</tt> option on what the status letters mean.\r
</p>\r
</dd>\r
<dt>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 22-Apr-2008 08:17:19 UTC\r
+Last updated 23-Apr-2008 16:08:36 UTC\r
</div>\r
</div>\r
</body>\r
</dt>\r
<dd>\r
<p>\r
- Show only names and status of changed files.\r
+ Show only names and status of changed files. See the description\r
+ of the <tt>--diff-filter</tt> option on what the status letters mean.\r
</p>\r
</dd>\r
<dt>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 22-Apr-2008 08:17:20 UTC\r
+Last updated 23-Apr-2008 16:08:37 UTC\r
</div>\r
</div>\r
</body>\r
by the source ref, followed by a colon <tt>:</tt>, followed by\r
the destination ref.\r
</p>\r
-<p>The <src> side can be an\r
-arbitrary "SHA1 expression" that can be used as an\r
-argument to <tt>git-cat-file -t</tt>. E.g. <tt>master~4</tt> (push\r
-four parents before the current master head).</p>\r
+<p>The <src> side represents the source branch (or arbitrary\r
+"SHA1 expression", such as <tt>master~4</tt> (four parents before the\r
+tip of <tt>master</tt> branch); see <a href="git-rev-parse.html">git-rev-parse(1)</a>) that you\r
+want to push. The <dst> side represents the destination location.</p>\r
<p>The local ref that matches <src> is used\r
-to fast forward the remote ref that matches <dst>. If\r
-the optional plus <tt>+</tt> is used, the remote ref is updated\r
+to fast forward the remote ref that matches <dst> (or, if no <dst> was\r
+specified, the same ref that <src> referred to locally). If\r
+the optional leading plus <tt>+</tt> is used, the remote ref is updated\r
even if it does not result in a fast forward update.</p>\r
<p>Note: If no explicit refspec is found, (that is neither\r
on the command line nor in any Push line of the\r
Find a ref that matches <tt>master</tt> in the source repository\r
(most likely, it would find <tt>refs/heads/master</tt>), and update\r
the same ref (e.g. <tt>refs/heads/master</tt>) in <tt>origin</tt> repository\r
- with it.\r
+ with it. If <tt>master</tt> did not exist remotely, it would be\r
+ created.\r
</p>\r
</dd>\r
<dt>\r
<dd>\r
<p>\r
Create the branch <tt>experimental</tt> in the <tt>origin</tt> repository\r
- by copying the current <tt>master</tt> branch. This form is usually\r
- needed to create a new branch in the remote repository as\r
- there is no <tt>experimental</tt> branch to match.\r
+ by copying the current <tt>master</tt> branch. This form is only\r
+ needed to create a new branch or tag in the remote repository when\r
+ the local name and the remote name are different; otherwise,\r
+ the ref name on its own will work.\r
</p>\r
</dd>\r
</dl>\r
</div>\r
<div id="footer">\r
<div id="footer-text">\r
-Last updated 28-Feb-2008 00:25:43 UTC\r
+Last updated 23-Apr-2008 16:08:37 UTC\r
</div>\r
</div>\r
</body>\r
by the source ref, followed by a colon `:`, followed by
the destination ref.
+
-The <src> side can be an
-arbitrary "SHA1 expression" that can be used as an
-argument to `git-cat-file -t`. E.g. `master~4` (push
-four parents before the current master head).
+The <src> side represents the source branch (or arbitrary
+"SHA1 expression", such as `master~4` (four parents before the
+tip of `master` branch); see linkgit:git-rev-parse[1]) that you
+want to push. The <dst> side represents the destination location.
+
The local ref that matches <src> is used
-to fast forward the remote ref that matches <dst>. If
-the optional plus `+` is used, the remote ref is updated
+to fast forward the remote ref that matches <dst> (or, if no <dst> was
+specified, the same ref that <src> referred to locally). If
+the optional leading plus `+` is used, the remote ref is updated
even if it does not result in a fast forward update.
+
Note: If no explicit refspec is found, (that is neither
Find a ref that matches `master` in the source repository
(most likely, it would find `refs/heads/master`), and update
the same ref (e.g. `refs/heads/master`) in `origin` repository
- with it.
+ with it. If `master` did not exist remotely, it would be
+ created.
git push origin :experimental::
Find a ref that matches `experimental` in the `origin` repository
git push origin master:refs/heads/experimental::
Create the branch `experimental` in the `origin` repository
- by copying the current `master` branch. This form is usually
- needed to create a new branch in the remote repository as
- there is no `experimental` branch to match.
+ by copying the current `master` branch. This form is only
+ needed to create a new branch or tag in the remote repository when
+ the local name and the remote name are different; otherwise,
+ the ref name on its own will work.
Author
------
-<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Git User's Manual (for version 1.5.3 or newer)</title><link rel="stylesheet" href="docbook-xsl.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.69.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="book" lang="en"><div class="titlepage"><div><div><h1 class="title"><a name="id189136"></a>Git User's Manual (for version 1.5.3 or newer)</h1></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="preface"><a href="#id264725">Preface</a></span></dt><dt><span class="chapter"><a href="#repositories-and-branches">1. Repositories and Branches</a></span></dt><dd><dl><dt><span class="section"><a href="#how-to-get-a-git-repository">How to get a git repository</a></span></dt><dt><span class="section"><a href="#how-to-check-out">How to check out a different version of a project</a></span></dt><dt><span class="section"><a href="#understanding-commits">Understanding History: Commits</a></span></dt><dd><dl><dt><span class="section"><a href="#understanding-reachability">Understanding history: commits, parents, and reachability</a></span></dt><dt><span class="section"><a href="#history-diagrams">Understanding history: History diagrams</a></span></dt><dt><span class="section"><a href="#what-is-a-branch">Understanding history: What is a branch?</a></span></dt></dl></dd><dt><span class="section"><a href="#manipulating-branches">Manipulating branches</a></span></dt><dt><span class="section"><a href="#detached-head">Examining an old version without creating a new branch</a></span></dt><dt><span class="section"><a href="#examining-remote-branches">Examining branches from a remote repository</a></span></dt><dt><span class="section"><a href="#how-git-stores-references">Naming branches, tags, and other references</a></span></dt><dt><span class="section"><a href="#Updating-a-repository-with-git-fetch">Updating a repository with git fetch</a></span></dt><dt><span class="section"><a href="#fetching-branches">Fetching branches from other repositories</a></span></dt></dl></dd><dt><span class="chapter"><a href="#exploring-git-history">2. Exploring git history</a></span></dt><dd><dl><dt><span class="section"><a href="#using-bisect">How to use bisect to find a regression</a></span></dt><dt><span class="section"><a href="#naming-commits">Naming commits</a></span></dt><dt><span class="section"><a href="#creating-tags">Creating tags</a></span></dt><dt><span class="section"><a href="#browsing-revisions">Browsing revisions</a></span></dt><dt><span class="section"><a href="#generating-diffs">Generating diffs</a></span></dt><dt><span class="section"><a href="#viewing-old-file-versions">Viewing old file versions</a></span></dt><dt><span class="section"><a href="#history-examples">Examples</a></span></dt><dd><dl><dt><span class="section"><a href="#counting-commits-on-a-branch">Counting the number of commits on a branch</a></span></dt><dt><span class="section"><a href="#checking-for-equal-branches">Check whether two branches point at the same history</a></span></dt><dt><span class="section"><a href="#finding-tagged-descendants">Find first tagged version including a given fix</a></span></dt><dt><span class="section"><a href="#showing-commits-unique-to-a-branch">Showing commits unique to a given branch</a></span></dt><dt><span class="section"><a href="#making-a-release">Creating a changelog and tarball for a software release</a></span></dt><dt><span class="section"><a href="#Finding-comments-with-given-content">Finding commits referencing a file with given content</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#Developing-with-git">3. Developing with git</a></span></dt><dd><dl><dt><span class="section"><a href="#telling-git-your-name">Telling git your name</a></span></dt><dt><span class="section"><a href="#creating-a-new-repository">Creating a new repository</a></span></dt><dt><span class="section"><a href="#how-to-make-a-commit">How to make a commit</a></span></dt><dt><span class="section"><a href="#creating-good-commit-messages">Creating good commit messages</a></span></dt><dt><span class="section"><a href="#ignoring-files">Ignoring files</a></span></dt><dt><span class="section"><a href="#how-to-merge">How to merge</a></span></dt><dt><span class="section"><a href="#resolving-a-merge">Resolving a merge</a></span></dt><dd><dl><dt><span class="section"><a href="#conflict-resolution">Getting conflict-resolution help during a merge</a></span></dt></dl></dd><dt><span class="section"><a href="#undoing-a-merge">Undoing a merge</a></span></dt><dt><span class="section"><a href="#fast-forwards">Fast-forward merges</a></span></dt><dt><span class="section"><a href="#fixing-mistakes">Fixing mistakes</a></span></dt><dd><dl><dt><span class="section"><a href="#reverting-a-commit">Fixing a mistake with a new commit</a></span></dt><dt><span class="section"><a href="#fixing-a-mistake-by-rewriting-history">Fixing a mistake by rewriting history</a></span></dt><dt><span class="section"><a href="#checkout-of-path">Checking out an old version of a file</a></span></dt><dt><span class="section"><a href="#interrupted-work">Temporarily setting aside work in progress</a></span></dt></dl></dd><dt><span class="section"><a href="#ensuring-good-performance">Ensuring good performance</a></span></dt><dt><span class="section"><a href="#ensuring-reliability">Ensuring reliability</a></span></dt><dd><dl><dt><span class="section"><a href="#checking-for-corruption">Checking the repository for corruption</a></span></dt><dt><span class="section"><a href="#recovering-lost-changes">Recovering lost changes</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#sharing-development">4. Sharing development with others</a></span></dt><dd><dl><dt><span class="section"><a href="#getting-updates-with-git-pull">Getting updates with git pull</a></span></dt><dt><span class="section"><a href="#submitting-patches">Submitting patches to a project</a></span></dt><dt><span class="section"><a href="#importing-patches">Importing patches to a project</a></span></dt><dt><span class="section"><a href="#public-repositories">Public git repositories</a></span></dt><dd><dl><dt><span class="section"><a href="#setting-up-a-public-repository">Setting up a public repository</a></span></dt><dt><span class="section"><a href="#exporting-via-git">Exporting a git repository via the git protocol</a></span></dt><dt><span class="section"><a href="#exporting-via-http">Exporting a git repository via http</a></span></dt><dt><span class="section"><a href="#pushing-changes-to-a-public-repository">Pushing changes to a public repository</a></span></dt><dt><span class="section"><a href="#forcing-push">What to do when a push fails</a></span></dt><dt><span class="section"><a href="#setting-up-a-shared-repository">Setting up a shared repository</a></span></dt><dt><span class="section"><a href="#setting-up-gitweb">Allowing web browsing of a repository</a></span></dt></dl></dd><dt><span class="section"><a href="#sharing-development-examples">Examples</a></span></dt><dd><dl><dt><span class="section"><a href="#maintaining-topic-branches">Maintaining topic branches for a Linux subsystem maintainer</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#cleaning-up-history">5. Rewriting history and maintaining patch series</a></span></dt><dd><dl><dt><span class="section"><a href="#patch-series">Creating the perfect patch series</a></span></dt><dt><span class="section"><a href="#using-git-rebase">Keeping a patch series up to date using git-rebase</a></span></dt><dt><span class="section"><a href="#rewriting-one-commit">Rewriting a single commit</a></span></dt><dt><span class="section"><a href="#reordering-patch-series">Reordering or selecting from a patch series</a></span></dt><dt><span class="section"><a href="#patch-series-tools">Other tools</a></span></dt><dt><span class="section"><a href="#problems-with-rewriting-history">Problems with rewriting history</a></span></dt><dt><span class="section"><a href="#bisect-merges">Why bisecting merge commits can be harder than bisecting linear history</a></span></dt></dl></dd><dt><span class="chapter"><a href="#advanced-branch-management">6. Advanced branch management</a></span></dt><dd><dl><dt><span class="section"><a href="#fetching-individual-branches">Fetching individual branches</a></span></dt><dt><span class="section"><a href="#fetch-fast-forwards">git fetch and fast-forwards</a></span></dt><dt><span class="section"><a href="#forcing-fetch">Forcing git fetch to do non-fast-forward updates</a></span></dt><dt><span class="section"><a href="#remote-branch-configuration">Configuring remote branches</a></span></dt></dl></dd><dt><span class="chapter"><a href="#git-concepts">7. Git concepts</a></span></dt><dd><dl><dt><span class="section"><a href="#the-object-database">The Object Database</a></span></dt><dd><dl><dt><span class="section"><a href="#commit-object">Commit Object</a></span></dt><dt><span class="section"><a href="#tree-object">Tree Object</a></span></dt><dt><span class="section"><a href="#blob-object">Blob Object</a></span></dt><dt><span class="section"><a href="#trust">Trust</a></span></dt><dt><span class="section"><a href="#tag-object">Tag Object</a></span></dt><dt><span class="section"><a href="#pack-files">How git stores objects efficiently: pack files</a></span></dt><dt><span class="section"><a href="#dangling-objects">Dangling objects</a></span></dt><dt><span class="section"><a href="#recovering-from-repository-corruption">Recovering from repository corruption</a></span></dt></dl></dd><dt><span class="section"><a href="#the-index">The index</a></span></dt></dl></dd><dt><span class="chapter"><a href="#submodules">8. Submodules</a></span></dt><dd><dl><dt><span class="section"><a href="#id280316">Pitfalls with submodules</a></span></dt></dl></dd><dt><span class="chapter"><a href="#low-level-operations">9. Low-level git operations</a></span></dt><dd><dl><dt><span class="section"><a href="#object-manipulation">Object access and manipulation</a></span></dt><dt><span class="section"><a href="#the-workflow">The Workflow</a></span></dt><dd><dl><dt><span class="section"><a href="#working-directory-to-index">working directory -> index</a></span></dt><dt><span class="section"><a href="#index-to-object-database">index -> object database</a></span></dt><dt><span class="section"><a href="#object-database-to-index">object database -> index</a></span></dt><dt><span class="section"><a href="#index-to-working-directory">index -> working directory</a></span></dt><dt><span class="section"><a href="#tying-it-all-together">Tying it all together</a></span></dt></dl></dd><dt><span class="section"><a href="#examining-the-data">Examining the data</a></span></dt><dt><span class="section"><a href="#merging-multiple-trees">Merging multiple trees</a></span></dt><dt><span class="section"><a href="#merging-multiple-trees-2">Merging multiple trees, continued</a></span></dt></dl></dd><dt><span class="chapter"><a href="#hacking-git">10. Hacking git</a></span></dt><dd><dl><dt><span class="section"><a href="#object-details">Object storage format</a></span></dt><dt><span class="section"><a href="#birdview-on-the-source-code">A birds-eye view of Git's source code</a></span></dt></dl></dd><dt><span class="chapter"><a href="#glossary">11. GIT Glossary</a></span></dt><dt><span class="appendix"><a href="#git-quick-start">A. Git Quick Reference</a></span></dt><dd><dl><dt><span class="section"><a href="#quick-creating-a-new-repository">Creating a new repository</a></span></dt><dt><span class="section"><a href="#managing-branches">Managing branches</a></span></dt><dt><span class="section"><a href="#exploring-history">Exploring history</a></span></dt><dt><span class="section"><a href="#making-changes">Making changes</a></span></dt><dt><span class="section"><a href="#merging">Merging</a></span></dt><dt><span class="section"><a href="#sharing-your-changes">Sharing your changes</a></span></dt><dt><span class="section"><a href="#repository-maintenance">Repository maintenance</a></span></dt></dl></dd><dt><span class="appendix"><a href="#todo">B. Notes and todo list for this manual</a></span></dt></dl></div><div class="preface" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="id264725"></a>Preface</h2></div></div></div><p>Git is a fast distributed revision control system.</p><p>This manual is designed to be readable by someone with basic UNIX
+<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Git User's Manual (for version 1.5.3 or newer)</title><link rel="stylesheet" href="docbook-xsl.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.69.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="book" lang="en"><div class="titlepage"><div><div><h1 class="title"><a name="id189136"></a>Git User's Manual (for version 1.5.3 or newer)</h1></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="preface"><a href="#id264725">Preface</a></span></dt><dt><span class="chapter"><a href="#repositories-and-branches">1. Repositories and Branches</a></span></dt><dd><dl><dt><span class="section"><a href="#how-to-get-a-git-repository">How to get a git repository</a></span></dt><dt><span class="section"><a href="#how-to-check-out">How to check out a different version of a project</a></span></dt><dt><span class="section"><a href="#understanding-commits">Understanding History: Commits</a></span></dt><dd><dl><dt><span class="section"><a href="#understanding-reachability">Understanding history: commits, parents, and reachability</a></span></dt><dt><span class="section"><a href="#history-diagrams">Understanding history: History diagrams</a></span></dt><dt><span class="section"><a href="#what-is-a-branch">Understanding history: What is a branch?</a></span></dt></dl></dd><dt><span class="section"><a href="#manipulating-branches">Manipulating branches</a></span></dt><dt><span class="section"><a href="#detached-head">Examining an old version without creating a new branch</a></span></dt><dt><span class="section"><a href="#examining-remote-branches">Examining branches from a remote repository</a></span></dt><dt><span class="section"><a href="#how-git-stores-references">Naming branches, tags, and other references</a></span></dt><dt><span class="section"><a href="#Updating-a-repository-with-git-fetch">Updating a repository with git fetch</a></span></dt><dt><span class="section"><a href="#fetching-branches">Fetching branches from other repositories</a></span></dt></dl></dd><dt><span class="chapter"><a href="#exploring-git-history">2. Exploring git history</a></span></dt><dd><dl><dt><span class="section"><a href="#using-bisect">How to use bisect to find a regression</a></span></dt><dt><span class="section"><a href="#naming-commits">Naming commits</a></span></dt><dt><span class="section"><a href="#creating-tags">Creating tags</a></span></dt><dt><span class="section"><a href="#browsing-revisions">Browsing revisions</a></span></dt><dt><span class="section"><a href="#generating-diffs">Generating diffs</a></span></dt><dt><span class="section"><a href="#viewing-old-file-versions">Viewing old file versions</a></span></dt><dt><span class="section"><a href="#history-examples">Examples</a></span></dt><dd><dl><dt><span class="section"><a href="#counting-commits-on-a-branch">Counting the number of commits on a branch</a></span></dt><dt><span class="section"><a href="#checking-for-equal-branches">Check whether two branches point at the same history</a></span></dt><dt><span class="section"><a href="#finding-tagged-descendants">Find first tagged version including a given fix</a></span></dt><dt><span class="section"><a href="#showing-commits-unique-to-a-branch">Showing commits unique to a given branch</a></span></dt><dt><span class="section"><a href="#making-a-release">Creating a changelog and tarball for a software release</a></span></dt><dt><span class="section"><a href="#Finding-comments-with-given-content">Finding commits referencing a file with given content</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#Developing-with-git">3. Developing with git</a></span></dt><dd><dl><dt><span class="section"><a href="#telling-git-your-name">Telling git your name</a></span></dt><dt><span class="section"><a href="#creating-a-new-repository">Creating a new repository</a></span></dt><dt><span class="section"><a href="#how-to-make-a-commit">How to make a commit</a></span></dt><dt><span class="section"><a href="#creating-good-commit-messages">Creating good commit messages</a></span></dt><dt><span class="section"><a href="#ignoring-files">Ignoring files</a></span></dt><dt><span class="section"><a href="#how-to-merge">How to merge</a></span></dt><dt><span class="section"><a href="#resolving-a-merge">Resolving a merge</a></span></dt><dd><dl><dt><span class="section"><a href="#conflict-resolution">Getting conflict-resolution help during a merge</a></span></dt></dl></dd><dt><span class="section"><a href="#undoing-a-merge">Undoing a merge</a></span></dt><dt><span class="section"><a href="#fast-forwards">Fast-forward merges</a></span></dt><dt><span class="section"><a href="#fixing-mistakes">Fixing mistakes</a></span></dt><dd><dl><dt><span class="section"><a href="#reverting-a-commit">Fixing a mistake with a new commit</a></span></dt><dt><span class="section"><a href="#fixing-a-mistake-by-rewriting-history">Fixing a mistake by rewriting history</a></span></dt><dt><span class="section"><a href="#checkout-of-path">Checking out an old version of a file</a></span></dt><dt><span class="section"><a href="#interrupted-work">Temporarily setting aside work in progress</a></span></dt></dl></dd><dt><span class="section"><a href="#ensuring-good-performance">Ensuring good performance</a></span></dt><dt><span class="section"><a href="#ensuring-reliability">Ensuring reliability</a></span></dt><dd><dl><dt><span class="section"><a href="#checking-for-corruption">Checking the repository for corruption</a></span></dt><dt><span class="section"><a href="#recovering-lost-changes">Recovering lost changes</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#sharing-development">4. Sharing development with others</a></span></dt><dd><dl><dt><span class="section"><a href="#getting-updates-with-git-pull">Getting updates with git pull</a></span></dt><dt><span class="section"><a href="#submitting-patches">Submitting patches to a project</a></span></dt><dt><span class="section"><a href="#importing-patches">Importing patches to a project</a></span></dt><dt><span class="section"><a href="#public-repositories">Public git repositories</a></span></dt><dd><dl><dt><span class="section"><a href="#setting-up-a-public-repository">Setting up a public repository</a></span></dt><dt><span class="section"><a href="#exporting-via-git">Exporting a git repository via the git protocol</a></span></dt><dt><span class="section"><a href="#exporting-via-http">Exporting a git repository via http</a></span></dt><dt><span class="section"><a href="#pushing-changes-to-a-public-repository">Pushing changes to a public repository</a></span></dt><dt><span class="section"><a href="#forcing-push">What to do when a push fails</a></span></dt><dt><span class="section"><a href="#setting-up-a-shared-repository">Setting up a shared repository</a></span></dt><dt><span class="section"><a href="#setting-up-gitweb">Allowing web browsing of a repository</a></span></dt></dl></dd><dt><span class="section"><a href="#sharing-development-examples">Examples</a></span></dt><dd><dl><dt><span class="section"><a href="#maintaining-topic-branches">Maintaining topic branches for a Linux subsystem maintainer</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#cleaning-up-history">5. Rewriting history and maintaining patch series</a></span></dt><dd><dl><dt><span class="section"><a href="#patch-series">Creating the perfect patch series</a></span></dt><dt><span class="section"><a href="#using-git-rebase">Keeping a patch series up to date using git-rebase</a></span></dt><dt><span class="section"><a href="#rewriting-one-commit">Rewriting a single commit</a></span></dt><dt><span class="section"><a href="#reordering-patch-series">Reordering or selecting from a patch series</a></span></dt><dt><span class="section"><a href="#patch-series-tools">Other tools</a></span></dt><dt><span class="section"><a href="#problems-with-rewriting-history">Problems with rewriting history</a></span></dt><dt><span class="section"><a href="#bisect-merges">Why bisecting merge commits can be harder than bisecting linear history</a></span></dt></dl></dd><dt><span class="chapter"><a href="#advanced-branch-management">6. Advanced branch management</a></span></dt><dd><dl><dt><span class="section"><a href="#fetching-individual-branches">Fetching individual branches</a></span></dt><dt><span class="section"><a href="#fetch-fast-forwards">git fetch and fast-forwards</a></span></dt><dt><span class="section"><a href="#forcing-fetch">Forcing git fetch to do non-fast-forward updates</a></span></dt><dt><span class="section"><a href="#remote-branch-configuration">Configuring remote branches</a></span></dt></dl></dd><dt><span class="chapter"><a href="#git-concepts">7. Git concepts</a></span></dt><dd><dl><dt><span class="section"><a href="#the-object-database">The Object Database</a></span></dt><dd><dl><dt><span class="section"><a href="#commit-object">Commit Object</a></span></dt><dt><span class="section"><a href="#tree-object">Tree Object</a></span></dt><dt><span class="section"><a href="#blob-object">Blob Object</a></span></dt><dt><span class="section"><a href="#trust">Trust</a></span></dt><dt><span class="section"><a href="#tag-object">Tag Object</a></span></dt><dt><span class="section"><a href="#pack-files">How git stores objects efficiently: pack files</a></span></dt><dt><span class="section"><a href="#dangling-objects">Dangling objects</a></span></dt><dt><span class="section"><a href="#recovering-from-repository-corruption">Recovering from repository corruption</a></span></dt></dl></dd><dt><span class="section"><a href="#the-index">The index</a></span></dt></dl></dd><dt><span class="chapter"><a href="#submodules">8. Submodules</a></span></dt><dd><dl><dt><span class="section"><a href="#id280266">Pitfalls with submodules</a></span></dt></dl></dd><dt><span class="chapter"><a href="#low-level-operations">9. Low-level git operations</a></span></dt><dd><dl><dt><span class="section"><a href="#object-manipulation">Object access and manipulation</a></span></dt><dt><span class="section"><a href="#the-workflow">The Workflow</a></span></dt><dd><dl><dt><span class="section"><a href="#working-directory-to-index">working directory -> index</a></span></dt><dt><span class="section"><a href="#index-to-object-database">index -> object database</a></span></dt><dt><span class="section"><a href="#object-database-to-index">object database -> index</a></span></dt><dt><span class="section"><a href="#index-to-working-directory">index -> working directory</a></span></dt><dt><span class="section"><a href="#tying-it-all-together">Tying it all together</a></span></dt></dl></dd><dt><span class="section"><a href="#examining-the-data">Examining the data</a></span></dt><dt><span class="section"><a href="#merging-multiple-trees">Merging multiple trees</a></span></dt><dt><span class="section"><a href="#merging-multiple-trees-2">Merging multiple trees, continued</a></span></dt></dl></dd><dt><span class="chapter"><a href="#hacking-git">10. Hacking git</a></span></dt><dd><dl><dt><span class="section"><a href="#object-details">Object storage format</a></span></dt><dt><span class="section"><a href="#birdview-on-the-source-code">A birds-eye view of Git's source code</a></span></dt></dl></dd><dt><span class="chapter"><a href="#glossary">11. GIT Glossary</a></span></dt><dt><span class="appendix"><a href="#git-quick-start">A. Git Quick Reference</a></span></dt><dd><dl><dt><span class="section"><a href="#quick-creating-a-new-repository">Creating a new repository</a></span></dt><dt><span class="section"><a href="#managing-branches">Managing branches</a></span></dt><dt><span class="section"><a href="#exploring-history">Exploring history</a></span></dt><dt><span class="section"><a href="#making-changes">Making changes</a></span></dt><dt><span class="section"><a href="#merging">Merging</a></span></dt><dt><span class="section"><a href="#sharing-your-changes">Sharing your changes</a></span></dt><dt><span class="section"><a href="#repository-maintenance">Repository maintenance</a></span></dt></dl></dd><dt><span class="appendix"><a href="#todo">B. Notes and todo list for this manual</a></span></dt></dl></div><div class="preface" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="id264725"></a>Preface</h2></div></div></div><p>Git is a fast distributed revision control system.</p><p>This manual is designed to be readable by someone with basic UNIX
command-line skills, but no previous knowledge of git.</p><p><a href="#repositories-and-branches" title="Chapter 1. Repositories and Branches">Chapter 1, <i>Repositories and Branches</i></a> and <a href="#exploring-git-history" title="Chapter 2. Exploring git history">Chapter 2, <i>Exploring git history</i></a> explain how
to fetch and study a project using git—read these chapters to learn how
to build and test a particular version of a software project, search for
dangling tree b24c2473f1fd3d91352a624795be026d64c8841f<br>
...</p></div><p>Dangling objects are not a problem. At worst they may take up a little
extra disk space. They can sometimes provide a last-resort method for
-recovering lost work—see <a href="#dangling-objects" title="Dangling objects">the section called “Dangling objects”</a> for details. However, if
-you wish, you can remove them with <a href="git-prune.html" target="_top">git-prune(1)</a> or the <code class="literal">—prune</code>
-option to <a href="git-gc.html" target="_top">git-gc(1)</a>:</p><div class="literallayout"><p>$ git gc --prune</p></div><p>This may be time-consuming. Unlike most other git operations (including
-git-gc when run without any options), it is not safe to prune while
-other git operations are in progress in the same repository.</p><p>If <a href="git-fsck.html" target="_top">git-fsck(1)</a> complains about sha1 mismatches or missing
-objects, you may have a much more serious problem; your best option is
-probably restoring from backups. See
-<a href="#recovering-from-repository-corruption" title="Recovering from repository corruption">the section called “Recovering from repository corruption”</a> for a detailed discussion.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="recovering-lost-changes"></a>Recovering lost changes</h3></div></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="reflogs"></a>Reflogs</h4></div></div></div><p>Say you modify a branch with <code class="literal"><a href="git-reset.html" target="_top">git-reset(1)</a> —hard</code>, and then
+recovering lost work—see <a href="#dangling-objects" title="Dangling objects">the section called “Dangling objects”</a> for details.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="recovering-lost-changes"></a>Recovering lost changes</h3></div></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="reflogs"></a>Reflogs</h4></div></div></div><p>Say you modify a branch with <code class="literal"><a href="git-reset.html" target="_top">git-reset(1)</a> —hard</code>, and then
realize that the branch was the only reference you had to that point in
history.</p><p>Fortunately, git also keeps a log, called a "reflog", of all the
previous values of each branch. So in this case you can still find the
number, and will take on values other than 0 for files with merge
conflicts.</p></li></ol></div><p>The index is thus a sort of temporary staging area, which is filled with
a tree which you are in the process of working on.</p><p>If you blow the index away entirely, you generally haven't lost any
-information as long as you have the name of the tree that it described.</p></div></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="submodules"></a>Chapter 8. Submodules</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id280316">Pitfalls with submodules</a></span></dt></dl></div><p>Large projects are often composed of smaller, self-contained modules. For
+information as long as you have the name of the tree that it described.</p></div></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="submodules"></a>Chapter 8. Submodules</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id280266">Pitfalls with submodules</a></span></dt></dl></div><p>Large projects are often composed of smaller, self-contained modules. For
example, an embedded Linux distribution's source tree would include every
piece of software in the distribution with some local modifications; a movie
player might need to build against a specific, known-working version of a
$ git add a<br>
$ git commit -m "Updated submodule a."<br>
$ git push</p></div><p>You have to run <code class="literal">git submodule update</code> after <code class="literal">git pull</code> if you want to update
-submodules, too.</p><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id280316"></a>Pitfalls with submodules</h2></div></div></div><p>Always publish the submodule change before publishing the change to the
+submodules, too.</p><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id280266"></a>Pitfalls with submodules</h2></div></div></div><p>Always publish the submodule change before publishing the change to the
superproject that references it. If you forget to publish the submodule change,
others won't be able to clone the repository:</p><div class="literallayout"><p>$ cd ~/git/super/a<br>
$ echo i added another line to this file >> a.txt<br>
Dangling objects are not a problem. At worst they may take up a little
extra disk space. They can sometimes provide a last-resort method for
-recovering lost work--see <<dangling-objects>> for details. However, if
-you wish, you can remove them with linkgit:git-prune[1] or the `--prune`
-option to linkgit:git-gc[1]:
-
--------------------------------------------------
-$ git gc --prune
--------------------------------------------------
-
-This may be time-consuming. Unlike most other git operations (including
-git-gc when run without any options), it is not safe to prune while
-other git operations are in progress in the same repository.
-
-If linkgit:git-fsck[1] complains about sha1 mismatches or missing
-objects, you may have a much more serious problem; your best option is
-probably restoring from backups. See
-<<recovering-from-repository-corruption>> for a detailed discussion.
+recovering lost work--see <<dangling-objects>> for details.
[[recovering-lost-changes]]
Recovering lost changes