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| <body class="manpage"> | |
| <div id="header"> | |
| <h1>git-sparse-checkout(1) Manual Page</h1> | |
| <h2 id="_name">NAME</h2> | |
| <div class="sectionbody"> | |
| <p>git-sparse-checkout - Reduce your working tree to a subset of tracked files</p> | |
| </div> | |
| </div> | |
| <div id="content"> | |
| <div class="sect1"> | |
| <h2 id="_synopsis">SYNOPSIS</h2> | |
| <div class="sectionbody"> | |
| <div class="verseblock"> | |
| <pre class="content"><em>git sparse-checkout</em> (init | list | set | add | reapply | disable | check-rules | clean) [<options>]</pre> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_description">DESCRIPTION</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>This command is used to create sparse checkouts, which change the | |
| working tree from having all tracked files present to only having a | |
| subset of those files. It can also switch which subset of files are | |
| present, or undo and go back to having all tracked files present in | |
| the working copy.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>The subset of files is chosen by providing a list of directories in | |
| cone mode (the default), or by providing a list of patterns in | |
| non-cone mode.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When in a sparse-checkout, other Git commands behave a bit differently. | |
| For example, switching branches will not update paths outside the | |
| sparse-checkout directories/patterns, and <code>git</code> <code>commit</code> <code>-a</code> will not record | |
| paths outside the sparse-checkout directories/patterns as deleted.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>THIS COMMAND IS EXPERIMENTAL. ITS BEHAVIOR, AND THE BEHAVIOR OF OTHER | |
| COMMANDS IN THE PRESENCE OF SPARSE-CHECKOUTS, WILL LIKELY CHANGE IN | |
| THE FUTURE.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_commands">COMMANDS</h2> | |
| <div class="sectionbody"> | |
| <div class="dlist"> | |
| <dl> | |
| <dt class="hdlist1"><em>list</em></dt> | |
| <dd> | |
| <p>Describe the directories or patterns in the sparse-checkout file.</p> | |
| </dd> | |
| <dt class="hdlist1"><em>set</em></dt> | |
| <dd> | |
| <p>Enable the necessary sparse-checkout config settings | |
| (<code>core.sparseCheckout</code>, <code>core.sparseCheckoutCone</code>, and | |
| <code>index.sparse</code>) if they are not already set to the desired values, | |
| populate the sparse-checkout file from the list of arguments | |
| following the <em>set</em> subcommand, and update the working directory to | |
| match.</p> | |
| <div class="paragraph"> | |
| <p>To ensure that adjusting the sparse-checkout settings within a worktree | |
| does not alter the sparse-checkout settings in other worktrees, the <em>set</em> | |
| subcommand will upgrade your repository config to use worktree-specific | |
| config if not already present. The sparsity defined by the arguments to | |
| the <em>set</em> subcommand are stored in the worktree-specific sparse-checkout | |
| file. See <a href="git-worktree.html">git-worktree(1)</a> and the documentation of | |
| <code>extensions.worktreeConfig</code> in <a href="git-config.html">git-config(1)</a> for more details.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When the <code>--stdin</code> option is provided, the directories or patterns are | |
| read from standard in as a newline-delimited list instead of from the | |
| arguments.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>By default, the input list is considered a list of directories, matching | |
| the output of <code>git</code> <code>ls-tree</code> <code>-d</code> <code>--name-only</code>. This includes interpreting | |
| pathnames that begin with a double quote (") as C-style quoted strings. | |
| Note that all files under the specified directories (at any depth) will | |
| be included in the sparse checkout, as well as files that are siblings | |
| of either the given directory or any of its ancestors (see <em>CONE PATTERN | |
| SET</em> below for more details). In the past, this was not the default, | |
| and <code>--cone</code> needed to be specified or <code>core.sparseCheckoutCone</code> needed | |
| to be enabled.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When <code>--no-cone</code> is passed, the input list is considered a list of | |
| patterns. This mode has a number of drawbacks, including not working | |
| with some options like <code>--sparse-index</code>. As explained in the | |
| "Non-cone Problems" section below, we do not recommend using it.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Use the <code>--</code>[<code>no-</code>]<code>sparse-index</code> option to use a sparse index (the | |
| default is to not use it). A sparse index reduces the size of the | |
| index to be more closely aligned with your sparse-checkout | |
| definition. This can have significant performance advantages for | |
| commands such as <code>git</code> <code>status</code> or <code>git</code> <code>add</code>. This feature is still | |
| experimental. Some commands might be slower with a sparse index until | |
| they are properly integrated with the feature.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p><strong>WARNING:</strong> Using a sparse index requires modifying the index in a way | |
| that is not completely understood by external tools. If you have trouble | |
| with this compatibility, then run <code>git</code> <code>sparse-checkout</code> <code>init</code> <code>--no-sparse-index</code> | |
| to rewrite your index to not be sparse. Older versions of Git will not | |
| understand the sparse directory entries index extension and may fail to | |
| interact with your repository until it is disabled.</p> | |
| </div> | |
| </dd> | |
| <dt class="hdlist1"><em>add</em></dt> | |
| <dd> | |
| <p>Update the sparse-checkout file to include additional directories | |
| (in cone mode) or patterns (in non-cone mode). By default, these | |
| directories or patterns are read from the command-line arguments, | |
| but they can be read from stdin using the <code>--stdin</code> option.</p> | |
| </dd> | |
| <dt class="hdlist1"><em>reapply</em></dt> | |
| <dd> | |
| <p>Reapply the sparsity pattern rules to paths in the working tree. | |
| Commands like merge or rebase can materialize paths to do their | |
| work (e.g. in order to show you a conflict), and other | |
| sparse-checkout commands might fail to sparsify an individual file | |
| (e.g. because it has unstaged changes or conflicts). In such | |
| cases, it can make sense to run <code>git</code> <code>sparse-checkout</code> <code>reapply</code> later | |
| after cleaning up affected paths (e.g. resolving conflicts, undoing | |
| or committing changes, etc.).</p> | |
| <div class="paragraph"> | |
| <p>The <code>reapply</code> command can also take <code>--</code>[<code>no-</code>]<code>cone</code> and <code>--</code>[<code>no-</code>]<code>sparse-index</code> | |
| flags, with the same meaning as the flags from the <code>set</code> command, in order | |
| to change which sparsity mode you are using without needing to also respecify | |
| all sparsity paths.</p> | |
| </div> | |
| </dd> | |
| <dt class="hdlist1"><em>clean</em></dt> | |
| <dd> | |
| <p>Opportunistically remove files outside of the sparse-checkout | |
| definition. This command requires cone mode to use recursive | |
| directory matches to determine which files should be removed. A | |
| file is considered for removal if it is contained within a tracked | |
| directory that is outside of the sparse-checkout definition.</p> | |
| <div class="paragraph"> | |
| <p>Some special cases, such as merge conflicts or modified files outside of | |
| the sparse-checkout definition could lead to keeping files that would | |
| otherwise be removed. Resolve conflicts, stage modifications, and use | |
| <code>git</code> <code>sparse-checkout</code> <code>reapply</code> in conjunction with <code>git</code> <code>sparse-checkout</code> | |
| <code>clean</code> to resolve these cases.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>This command can be used to be sure the sparse index works efficiently, | |
| though it does not require enabling the sparse index feature via the | |
| <code>index.sparse=true</code> configuration.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>To prevent accidental deletion of worktree files, the <code>clean</code> subcommand | |
| will not delete any files without the <code>-f</code> or <code>--force</code> option, unless | |
| the <code>clean.requireForce</code> config option is set to <code>false</code>.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>The <code>--dry-run</code> option will list the directories that would be removed | |
| without deleting them. Running in this mode can be helpful to predict the | |
| behavior of the clean command or to determine which kinds of files are left | |
| in the sparse directories.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>The <code>--verbose</code> option will list every file within the directories that | |
| are considered for removal. This option is helpful to determine if those | |
| files are actually important or perhaps to explain why the directory is | |
| still present despite the current sparse-checkout.</p> | |
| </div> | |
| </dd> | |
| <dt class="hdlist1"><em>disable</em></dt> | |
| <dd> | |
| <p>Disable the <code>core.sparseCheckout</code> config setting, and restore the | |
| working directory to include all files.</p> | |
| </dd> | |
| <dt class="hdlist1"><em>init</em></dt> | |
| <dd> | |
| <p>Deprecated command that behaves like <code>set</code> with no specified paths. | |
| May be removed in the future.</p> | |
| <div class="paragraph"> | |
| <p>Historically, <code>set</code> did not handle all the necessary config settings, | |
| which meant that both <code>init</code> and <code>set</code> had to be called. Invoking | |
| both meant the <code>init</code> step would first remove nearly all tracked files | |
| (and in cone mode, ignored files too), then the <code>set</code> step would add | |
| many of the tracked files (but not ignored files) back. In addition | |
| to the lost files, the performance and UI of this combination was | |
| poor.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Also, historically, <code>init</code> would not actually initialize the | |
| sparse-checkout file if it already existed. This meant it was | |
| possible to return to a sparse-checkout without remembering which | |
| paths to pass to a subsequent <em>set</em> or <em>add</em> command. However, | |
| <code>--cone</code> and <code>--sparse-index</code> options would not be remembered across | |
| the disable command, so the easy restore of calling a plain <code>init</code> | |
| decreased in utility.</p> | |
| </div> | |
| </dd> | |
| <dt class="hdlist1"><em>check-rules</em></dt> | |
| <dd> | |
| <p>Check whether sparsity rules match one or more paths.</p> | |
| <div class="paragraph"> | |
| <p>By default <code>check-rules</code> reads a list of paths from stdin and outputs only | |
| the ones that match the current sparsity rules. The input is expected to consist | |
| of one path per line, matching the output of <code>git</code> <code>ls-tree</code> <code>--name-only</code> including | |
| that pathnames that begin with a double quote (") are interpreted as C-style | |
| quoted strings.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When called with the <code>--rules-file</code> <em><file></em> flag the input files are matched | |
| against the sparse checkout rules found in <em><file></em> instead of the current ones. | |
| The rules in the files are expected to be in the same form as accepted by <code>git</code> | |
| <code>sparse-checkout</code> <code>set</code> <code>--stdin</code> (in particular, they must be newline-delimited).</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>By default, the rules passed to the <code>--rules-file</code> option are interpreted as | |
| cone mode directories. To pass non-cone mode patterns with <code>--rules-file</code>, | |
| combine the option with the <code>--no-cone</code> option.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When called with the <code>-z</code> flag, the format of the paths input on stdin as well | |
| as the output paths are \0 terminated and not quoted. Note that this does not | |
| apply to the format of the rules passed with the <code>--rules-file</code> option.</p> | |
| </div> | |
| </dd> | |
| </dl> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_examples">EXAMPLES</h2> | |
| <div class="sectionbody"> | |
| <div class="dlist"> | |
| <dl> | |
| <dt class="hdlist1"><code>git</code> <code>sparse-checkout</code> <code>set</code> <code>MY/DIR1</code> <code>SUB/DIR2</code></dt> | |
| <dd> | |
| <p>Change to a sparse checkout with all files (at any depth) under | |
| MY/DIR1/ and SUB/DIR2/ present in the working copy (plus all | |
| files immediately under MY/ and SUB/ and the toplevel | |
| directory). If already in a sparse checkout, change which files | |
| are present in the working copy to this new selection. Note | |
| that this command will also delete all ignored files in any | |
| directory that no longer has either tracked or | |
| non-ignored-untracked files present.</p> | |
| </dd> | |
| <dt class="hdlist1"><code>git</code> <code>sparse-checkout</code> <code>disable</code></dt> | |
| <dd> | |
| <p>Repopulate the working directory with all files, disabling sparse | |
| checkouts.</p> | |
| </dd> | |
| <dt class="hdlist1"><code>git</code> <code>sparse-checkout</code> <code>add</code> <code>SOME/DIR/ECTORY</code></dt> | |
| <dd> | |
| <p>Add all files under SOME/DIR/ECTORY/ (at any depth) to the | |
| sparse checkout, as well as all files immediately under | |
| SOME/DIR/ and immediately under SOME/. Must already be in a | |
| sparse checkout before using this command.</p> | |
| </dd> | |
| <dt class="hdlist1"><code>git</code> <code>sparse-checkout</code> <code>reapply</code></dt> | |
| <dd> | |
| <p>It is possible for commands to update the working tree in a | |
| way that does not respect the selected sparsity directories. | |
| This can come from tools external to Git writing files, or | |
| even affect Git commands because of either special cases (such | |
| as hitting conflicts when merging/rebasing), or because some | |
| commands didn’t fully support sparse checkouts (e.g. the old | |
| <code>recursive</code> merge backend had only limited support). This | |
| command reapplies the existing sparse directory specifications | |
| to make the working directory match.</p> | |
| </dd> | |
| </dl> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_internalssparse_checkout">INTERNALS — SPARSE CHECKOUT</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>"Sparse checkout" allows populating the working directory sparsely. It | |
| uses the skip-worktree bit (see <a href="git-update-index.html">git-update-index(1)</a>) to tell Git | |
| whether a file in the working directory is worth looking at. If the | |
| skip-worktree bit is set, and the file is not present in the working tree, | |
| then its absence is ignored. Git will avoid populating the contents of | |
| those files, which makes a sparse checkout helpful when working in a | |
| repository with many files, but only a few are important to the current | |
| user.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>The <code>$GIT_DIR/info/sparse-checkout</code> file is used to define the | |
| skip-worktree reference bitmap. When Git updates the working | |
| directory, it updates the skip-worktree bits in the index based | |
| on this file. The files matching the patterns in the file will | |
| appear in the working directory, and the rest will not.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_internalsnon_cone_problems">INTERNALS — NON-CONE PROBLEMS</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>The <code>$GIT_DIR/info/sparse-checkout</code> file populated by the <code>set</code> and | |
| <code>add</code> subcommands is defined to be a bunch of patterns (one per line) | |
| using the same syntax as .<code>gitignore</code> files. In cone mode, these | |
| patterns are restricted to matching directories (and users only ever | |
| need supply or see directory names), while in non-cone mode any | |
| gitignore-style pattern is permitted. Using the full gitignore-style | |
| patterns in non-cone mode has a number of shortcomings:</p> | |
| </div> | |
| <div class="ulist"> | |
| <ul> | |
| <li> | |
| <p>Fundamentally, it makes various worktree-updating processes (pull, | |
| merge, rebase, switch, reset, checkout, etc.) require O(N*M) pattern | |
| matches, where N is the number of patterns and M is the number of | |
| paths in the index. This scales poorly.</p> | |
| </li> | |
| <li> | |
| <p>Avoiding the scaling issue has to be done via limiting the number | |
| of patterns via specifying leading directory name or glob.</p> | |
| </li> | |
| <li> | |
| <p>Passing globs on the command line is error-prone as users may | |
| forget to quote the glob, causing the shell to expand it into all | |
| matching files and pass them all individually along to | |
| sparse-checkout set/add. While this could also be a problem with | |
| e.g. "git grep — *.c", mistakes with grep/log/status appear in | |
| the immediate output. With sparse-checkout, the mistake gets | |
| recorded at the time the sparse-checkout command is run and might | |
| not be problematic until the user later switches branches or rebases | |
| or merges, thus putting a delay between the user’s error and when | |
| they have a chance to catch/notice it.</p> | |
| </li> | |
| <li> | |
| <p>Related to the previous item, sparse-checkout has an <em>add</em> | |
| subcommand but no <em>remove</em> subcommand. Even if a <em>remove</em> | |
| subcommand were added, undoing an accidental unquoted glob runs | |
| the risk of "removing too much", as it may remove entries that had | |
| been included before the accidental add.</p> | |
| </li> | |
| <li> | |
| <p>Non-cone mode uses gitignore-style patterns to select what to | |
| <strong>include</strong> (with the exception of negated patterns), while | |
| .gitignore files use gitignore-style patterns to select what to | |
| <strong>exclude</strong> (with the exception of negated patterns). The | |
| documentation on gitignore-style patterns usually does not talk in | |
| terms of matching or non-matching, but on what the user wants to | |
| "exclude". This can cause confusion for users trying to learn how | |
| to specify sparse-checkout patterns to get their desired behavior.</p> | |
| </li> | |
| <li> | |
| <p>Every other git subcommand that wants to provide "special path | |
| pattern matching" of some sort uses pathspecs, but non-cone mode | |
| for sparse-checkout uses gitignore patterns, which feels | |
| inconsistent.</p> | |
| </li> | |
| <li> | |
| <p>It has edge cases where the "right" behavior is unclear. Two examples:</p> | |
| <div class="paragraph"> | |
| <p>First, two users are in a subdirectory, and the first runs</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>git sparse-checkout set '/toplevel-dir/*.c'</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>while the second runs</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>git sparse-checkout set relative-dir</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Should those arguments be transliterated into</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>current/subdirectory/toplevel-dir/*.c</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>and</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>current/subdirectory/relative-dir</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>before inserting into the sparse-checkout file? The user who typed | |
| the first command is probably aware that arguments to set/add are | |
| supposed to be patterns in non-cone mode, and probably would not be | |
| happy with such a transliteration. However, many gitignore-style | |
| patterns are just paths, which might be what the user who typed the | |
| second command was thinking, and they’d be upset if their argument | |
| wasn’t transliterated.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Second, what should bash-completion complete on for set/add commands | |
| for non-cone users? If it suggests paths, is it exacerbating the | |
| problem above? Also, if it suggests paths, what if the user has a | |
| file or directory that begins with either a <em>!</em> or <em>#</em> or has a <em>*</em>, | |
| <em>\</em>, <em>?</em>, <em>[</em>, or <em>]</em> in its name? And if it suggests paths, will | |
| it complete "/pro" to "/proc" (in the root filesystem) rather than to | |
| "/progress.txt" in the current directory? (Note that users are | |
| likely to want to start paths with a leading <em>/</em> in non-cone mode, | |
| for the same reason that .gitignore files often have one.) | |
| Completing on files or directories might give nasty surprises in | |
| all these cases.</p> | |
| </div> | |
| </li> | |
| <li> | |
| <p>The excessive flexibility made other extensions essentially | |
| impractical. <code>--sparse-index</code> is likely impossible in non-cone | |
| mode; even if it is somehow feasible, it would have been far more | |
| work to implement and may have been too slow in practice. Some | |
| ideas for adding coupling between partial clones and sparse | |
| checkouts are only practical with a more restricted set of paths | |
| as well.</p> | |
| </li> | |
| </ul> | |
| </div> | |
| <div class="paragraph"> | |
| <p>For all these reasons, non-cone mode is deprecated. Please switch to | |
| using cone mode.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_internalscone_mode_handling">INTERNALS — CONE MODE HANDLING</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>The "cone mode", which is the default, lets you specify only what | |
| directories to include. For any directory specified, all paths below | |
| that directory will be included, and any paths immediately under | |
| leading directories (including the toplevel directory) will also be | |
| included. Thus, if you specified the directory | |
| Documentation/technical/ | |
| then your sparse checkout would contain:</p> | |
| </div> | |
| <div class="ulist"> | |
| <ul> | |
| <li> | |
| <p>all files in the toplevel-directory</p> | |
| </li> | |
| <li> | |
| <p>all files immediately under Documentation/</p> | |
| </li> | |
| <li> | |
| <p>all files at any depth under Documentation/technical/</p> | |
| </li> | |
| </ul> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Also, in cone mode, even if no directories are specified, then the | |
| files in the toplevel directory will be included.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When changing the sparse-checkout patterns in cone mode, Git will inspect each | |
| tracked directory that is not within the sparse-checkout cone to see if it | |
| contains any untracked files. If all of those files are ignored due to the | |
| .<code>gitignore</code> patterns, then the directory will be deleted. If any of the | |
| untracked files within that directory is not ignored, then no deletions will | |
| occur within that directory and a warning message will appear. If these files | |
| are important, then reset your sparse-checkout definition so they are included, | |
| use <code>git</code> <code>add</code> and <code>git</code> <code>commit</code> to store them, then remove any remaining files | |
| manually to ensure Git can behave optimally.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>See also the "Internals — Cone Pattern Set" section to learn how the | |
| directories are transformed under the hood into a subset of the | |
| Full Pattern Set of sparse-checkout.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_internalsfull_pattern_set">INTERNALS — FULL PATTERN SET</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>The full pattern set allows for arbitrary pattern matches and complicated | |
| inclusion/exclusion rules. These can result in O(N*M) pattern matches when | |
| updating the index, where N is the number of patterns and M is the number | |
| of paths in the index. To combat this performance issue, a more restricted | |
| pattern set is allowed when <code>core.sparseCheckoutCone</code> is enabled.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>The sparse-checkout file uses the same syntax as .<code>gitignore</code> files; | |
| see <a href="gitignore.html">gitignore(5)</a> for details. Here, though, the patterns are | |
| usually being used to select which files to include rather than which | |
| files to exclude. (However, it can get a bit confusing since | |
| gitignore-style patterns have negations defined by patterns which | |
| begin with a <em>!</em>, so you can also select files to <em>not</em> include.)</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>For example, to select everything, and then to remove the file | |
| <code>unwanted</code> (so that every file will appear in your working tree except | |
| the file named <code>unwanted</code>):</p> | |
| </div> | |
| <div class="literalblock"> | |
| <div class="content"> | |
| <pre>git sparse-checkout set --no-cone '/*' '!unwanted'</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>These patterns are just placed into the | |
| <code>$GIT_DIR/info/sparse-checkout</code> as-is, so the contents of that file | |
| at this point would be</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>/* | |
| !unwanted</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>See also the "Sparse Checkout" section of <a href="git-read-tree.html">git-read-tree(1)</a> to | |
| learn more about the gitignore-style patterns used in sparse | |
| checkouts.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_internalscone_pattern_set">INTERNALS — CONE PATTERN SET</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>In cone mode, only directories are accepted, but they are translated into | |
| the same gitignore-style patterns used in the full pattern set. We refer | |
| to the particular patterns used in those mode as being of one of two types:</p> | |
| </div> | |
| <div class="olist arabic"> | |
| <ol class="arabic"> | |
| <li> | |
| <p><strong>Recursive:</strong> All paths inside a directory are included.</p> | |
| </li> | |
| <li> | |
| <p><strong>Parent:</strong> All files immediately inside a directory are included.</p> | |
| </li> | |
| </ol> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Since cone mode always includes files at the toplevel, when running | |
| <code>git</code> <code>sparse-checkout</code> <code>set</code> with no directories specified, the toplevel | |
| directory is added as a parent pattern. At this point, the | |
| sparse-checkout file contains the following patterns:</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>/* | |
| !/*/</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>This says "include everything immediately under the toplevel | |
| directory, but nothing at any level below that."</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>When in cone mode, the <code>git</code> <code>sparse-checkout</code> <code>set</code> subcommand takes a | |
| list of directories. The command <code>git</code> <code>sparse-checkout</code> <code>set</code> <code>A/B/C</code> sets | |
| the directory <code>A/B/C</code> as a recursive pattern, the directories <code>A</code> and | |
| <code>A/B</code> are added as parent patterns. The resulting sparse-checkout file | |
| is now</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>/* | |
| !/*/ | |
| /A/ | |
| !/A/*/ | |
| /A/B/ | |
| !/A/B/*/ | |
| /A/B/C/</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Here, order matters, so the negative patterns are overridden by the positive | |
| patterns that appear lower in the file.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Unless <code>core.sparseCheckoutCone</code> is explicitly set to <code>false</code>, Git will | |
| parse the sparse-checkout file expecting patterns of these types. Git will | |
| warn if the patterns do not match. If the patterns do match the expected | |
| format, then Git will use faster hash-based algorithms to compute inclusion | |
| in the sparse-checkout. If they do not match, git will behave as though | |
| <code>core.sparseCheckoutCone</code> was false, regardless of its setting.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>In the cone mode case, despite the fact that full patterns are written | |
| to the $GIT_DIR/info/sparse-checkout file, the <code>git</code> <code>sparse-checkout</code> | |
| <code>list</code> subcommand will list the directories that define the recursive | |
| patterns. For the example sparse-checkout file above, the output is as | |
| follows:</p> | |
| </div> | |
| <div class="listingblock"> | |
| <div class="content"> | |
| <pre>$ git sparse-checkout list | |
| A/B/C</pre> | |
| </div> | |
| </div> | |
| <div class="paragraph"> | |
| <p>If <code>core.ignoreCase=true</code>, then the pattern-matching algorithm will use a | |
| case-insensitive check. This corrects for case mismatched filenames in the | |
| <em>git sparse-checkout set</em> command to reflect the expected cone in the working | |
| directory.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_internalssubmodules">INTERNALS — SUBMODULES</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>If your repository contains one or more submodules, then submodules | |
| are populated based on interactions with the <code>git</code> <code>submodule</code> command. | |
| Specifically, <code>git</code> <code>submodule</code> <code>init</code> <code>--</code> <em><path></em> will ensure the submodule | |
| at <em><path></em> is present, while <code>git</code> <code>submodule</code> <code>deinit</code> [<code>-f</code>] <code>--</code> <em><path></em> | |
| will remove the files for the submodule at <em><path></em> (including any | |
| untracked files, uncommitted changes, and unpushed history). Similar | |
| to how sparse-checkout removes files from the working tree but still | |
| leaves entries in the index, deinitialized submodules are removed from | |
| the working directory but still have an entry in the index.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Since submodules may have unpushed changes or untracked files, | |
| removing them could result in data loss. Thus, changing sparse | |
| inclusion/exclusion rules will not cause an already checked out | |
| submodule to be removed from the working copy. Said another way, just | |
| as <code>checkout</code> will not cause submodules to be automatically removed or | |
| initialized even when switching between branches that remove or add | |
| submodules, using <code>sparse-checkout</code> to reduce or expand the scope of | |
| "interesting" files will not cause submodules to be automatically | |
| deinitialized or initialized either.</p> | |
| </div> | |
| <div class="paragraph"> | |
| <p>Further, the above facts mean that there are multiple reasons that | |
| "tracked" files might not be present in the working copy: sparsity | |
| pattern application from sparse-checkout, and submodule initialization | |
| state. Thus, commands like <code>git</code> <code>grep</code> that work on tracked files in | |
| the working copy may return results that are limited by either or both | |
| of these restrictions.</p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_see_also">SEE ALSO</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p><a href="git-read-tree.html">git-read-tree(1)</a> | |
| <a href="gitignore.html">gitignore(5)</a></p> | |
| </div> | |
| </div> | |
| </div> | |
| <div class="sect1"> | |
| <h2 id="_git">GIT</h2> | |
| <div class="sectionbody"> | |
| <div class="paragraph"> | |
| <p>Part of the <a href="git.html">git(1)</a> suite</p> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| <div id="footer"> | |
| <div id="footer-text"> | |
| Last updated 2026-06-15 11:30:43 -0700 | |
| </div> | |
| </div> | |
| </body> | |
| </html> |