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<a name="Tree"></a>
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Next: <a href="Workspace.html#Workspace" accesskey="n" rel="next">Workspace</a>, Previous: <a href="Global-and-Common-Options.html#Global-and-Common-Options" accesskey="p" rel="prev">Global and Common Options</a>, Up: <a href="Command-Reference.html#Command-Reference" accesskey="u" rel="up">Command Reference</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="General-Index.html#General-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Tree-1"></a>
<h3 class="section">4.2 Tree</h3>

<dl compact="compact">
<dd><a name="mtn-checkout"></a></dd>
<dt><code>mtn checkout [--[no-]move-conflicting-paths] --revision=<var>id</var> <var>directory</var></code>
<a name="index-mtn-checkout-_005b_002d_002d_005bno_002d_005dmove_002dconflicting_002dpaths_005d-_002d_002drevision_003did-directory"></a>
</dt>
<dt><code>mtn checkout [--[no-]move-conflicting-paths] --branch=<var>branchname</var> <var>directory</var></code>
<a name="index-mtn-checkout-_005b_002d_002d_005bno_002d_005dmove_002dconflicting_002dpaths_005d-_002d_002dbranch_003dbranchname-directory"></a>
</dt>
<dt><code>mtn co</code>
<a name="index-mtn-co"></a>
</dt>
<dd><p><code>co</code> is an alias for <code>checkout</code>
</p>
<p>These commands copy a revision <var>id</var> out of your database,
recording the chosen revision (the <em>base revision</em>) in the file
<samp><var>directory</var>/_MTN/revision</samp>. These commands then copy every
file version listed in the revision&rsquo;s manifest to paths under
<var>directory</var>.
</p>
<p>For example, if the revision&rsquo;s manifest contains these entries:
</p>
<div class="smallexample">
<pre class="smallexample">dir &quot;&quot;

   file &quot;Makefile&quot;
content [84e2c30a2571bd627918deee1e6613d34e64a29e]

   file &quot;include/hello.h&quot;
content [c61af2e67eb9b81e46357bb3c409a9a53a7cdfc6]

   file &quot;src/hello.c&quot;
content [97dfc6fd4f486df95868d85b4b81197014ae2a84]
</pre></div>

<p>Then the following files are created:
</p><div class="smallexample">
<pre class="smallexample"><var>directory</var>/
<var>directory</var>/Makefile
<var>directory</var>/include/hello.h
<var>directory</var>/src/hello.c
</pre></div>

<p>If you wish to <code>checkout</code> in the current directory, you can
supply the special name <samp>.</samp> (a single period) for
<var>directory</var>. When running <code>checkout</code> into an existing
directory, it is sometimes possible for <a href="Workspace-Collisions.html#Workspace-Collisions">Workspace Collisions</a> to
occur.
</p>
<p>If no <var>id</var> is provided, as in the latter two commands, you
<em>must</em> provide a <var>branchname</var>; monotone will attempt to infer
<var>id</var> as the unique head of <var>branchname</var> if it exists.
</p>
</dd>
<dt><code>mtn conflicts</code>
<a name="index-mtn-conflicts"></a>
</dt>
<dd><p>See <a href="Conflicts.html#Conflicts">Conflicts</a>
</p>
<a name="mtn-explicit_005fmerge"></a></dd>
<dt><code>mtn explicit_merge [--[no-]update] <var>id</var> <var>id</var> <var>destbranch</var></code>
<a name="index-mtn-explicit_005fmerge-_005b_002d_002d_005bno_002d_005dupdate_005d-id-id-destbranch"></a>
</dt>
<dd><p>See the online help for options. See <a href="Common-Options.html#g_t_002d_002dupdate">--update</a>.
</p>
<p>This command merges exactly the two <var>id</var>s you give it, and places
the result in branch <var>destbranch</var>.  It is useful when you need more
control over the merging process than <code>propagate</code> or <code>merge</code>
give you.  For instance, if you have a branch with three heads, and you
only want to merge two of them, you can use this command.  Or if you
have a branch with two heads, and you want to propagate one of them to
another branch, again, you can use this command.
</p>
<p><a href="Merge-Conflicts.html#Merge-Conflicts">Merge Conflicts</a> can occur.
</p>
</dd>
<dt><code>mtn heads [--branch=<var>branchname</var>]</code>
<a name="index-mtn-heads-_005b_002d_002dbranch_003dbranchname_005d"></a>
</dt>
<dd><p>This command lists the &ldquo;heads&rdquo; of <var>branchname</var> (defaults to the
current workspace).
</p>
<p>The &ldquo;heads&rdquo; of a branch is the set of revisions which are members of
the branch, but which have no descendants. These revisions are
generally the &ldquo;newest&rdquo; revisions committed by you or your
colleagues, at least in terms of ancestry. The heads of a branch may
not be the newest revisions, in terms of time, but synchronization of
computer clocks is not reliable, so monotone usually ignores time.
</p>
<a name="mtn-import"></a></dd>
<dt><code>mtn import --branch=<var>branch</var> [--message=<var>message</var>] [--[no-]dry-run] <var>dir</var></code>
<a name="index-mtn-import-_002d_002dbranch_003dbranch-_005b_002d_002dmessage_003dmessage_005d-_005b_002d_002d_005bno_002d_005ddry_002drun_005d-dir"></a>
</dt>
<dt><code>mtn import --revision=<var>revision</var> [--message=<var>message</var>] [--[no-]dry-run] <var>dir</var></code>
<a name="index-mtn-import-_002d_002drevision_003drevision-_005b_002d_002dmessage_003dmessage_005d-_005b_002d_002d_005bno_002d_005ddry_002drun_005d-dir"></a>
</dt>
<dd><p>See the online help for more options.
</p>
<p>This command imports the contents of the given directory and commits it
to the head of the given branch or as a child of the given revision (and
consequently into the branch that revision resides in).
</p>
<p>If the given branch doesn&rsquo;t exist, it is created automatically.  If the
branch already exists, any missing files are dropped and any unknown
files are added before committing.
</p>
<p>If neither <samp>--message</samp> nor <samp>--message-file</samp> is given,
the Lua hook <code><a href="User-Defaults.html#edit_005fcomment">edit_comment</a></code> is called to provide a commit
comment, with text formatted as in <code><a href="Workspace.html#mtn-commit">mtn commit</a></code>.
</p>
<p>If <samp>--dry-run</samp> is given, no commit is done.
</p>
<p>Roughly speaking, <code>mtn import</code> does the following:
</p>
<div class="example">
<pre class="example">$ mtn setup <span class="roman">(with a twist)</span>
$ mtn drop --missing
$ mtn add --unknown
$ mtn commit
</pre></div>

<p>The twist with the <code>mtn setup</code> part is that it sets the parent
to be the given revision or the head of the given branch instead of the
null revision.
</p>
<a name="mtn-merge"></a></dd>
<dt><code>mtn merge [--branch=<var>branchname</var>] [--message <var>string</var>] [--message-file <var>filename</var>] [--[no-]update]</code>
<a name="index-mtn-merge-_005b_002d_002dbranch_003dbranchname_005d-_005b_002d_002dmessage-string_005d-_005b_002d_002dmessage_002dfile-filename_005d-_005b_002d_002d_005bno_002d_005dupdate_005d"></a>
</dt>
<dd><p>See the online help for more options. See <a href="Common-Options.html#g_t_002d_002dupdate">--update</a>.
</p>
<p>This command merges the &ldquo;heads&rdquo; of <var>branchname</var> (default the
branch of the current workspace), if there are multiple heads, and
commits the results to the database, marking the resulting merged
revision as a member of <var>branchname</var>. The merged revision will
contain each of the head revision IDs as ancestors.
</p>
<p>A commit message may be provided via <samp>--message <var>string</var></samp>
or <samp>--message-file <var>filename</var></samp>. A message stating the
revision ids that were merged will be prepended to any user commit
message.
</p>
<p>Merging is performed by repeated pairwise merges: two heads are
selected, then their least common ancestor is located in the ancestry
graph and these 3 revisions are provided to the built-in 3-way merge
algorithm. The process then repeats for each additional head, using
the result of each previous merge as an input to the next.
</p>
<p><a href="Merge-Conflicts.html#Merge-Conflicts">Merge Conflicts</a> can occur.
</p>
</dd>
<dt><code>mtn merge_into_dir [--[no-]update] <var>sourcebranch</var> <var>destbranch</var> <var>dir</var></code>
<a name="index-mtn-merge_005finto_005fdir-_005b_002d_002d_005bno_002d_005dupdate_005d-sourcebranch-destbranch-dir"></a>
</dt>
<dd><p>This command takes a unique head from <var>sourcebranch</var> and merges it
into a unique head of <var>destbranch</var>, as a directory. The resulting
revision is committed to <var>destbranch</var>. If either <var>sourcebranch</var> or
<var>destbranch</var> has multiple heads, <code>merge_into_dir</code> aborts, doing
nothing.
</p>
<p>The purpose of <code>merge_into_dir</code> is to permit a project to contain
another project in such a way that <code>propagate</code> can be used to keep
the contained project up-to-date. It is meant to replace the use of nested
checkouts in many circumstances.
</p>
<p>Note that <code>merge_into_dir</code> <em>does not</em> permit changes made to the
contained project in <var>destbranch</var> to be propagated back to
<var>sourcebranch</var>. Attempting this would lead to <var>sourcebranch</var> containing
both projects nested as in <var>destbranch</var> instead of only the project
originally in <var>sourcebranch</var>, which is almost certainly not what would be
intended.
</p>
<p><a href="Merge-Conflicts.html#Merge-Conflicts">Merge Conflicts</a> can occur. See <a href="Common-Options.html#g_t_002d_002dupdate">--update</a>.
</p>
<a name="mtn-merge_005finto_005fworkspace"></a></dd>
<dt><code>mtn merge_into_workspace [--[no]-move-conflicting-paths] <var>revision</var></code>
<a name="index-mtn-merge_005finto_005fworkspace-_005b_002d_002d_005bno_005d_002dmove_002dconflicting_002dpaths_005d-revision"></a>
</dt>
<dd><p>Merges <var>revision</var> into the current workspace; the result is not
committed to the database. There can be no pending changes in the
current workspace. The workspace&rsquo;s selected branch is not
changed.
</p>
<p>When a later commit is done, both <var>revision</var> and the workspace&rsquo;s
base revision will be recorded as parents.
</p>
<p><a href="Merge-Conflicts.html#Merge-Conflicts">Merge Conflicts</a> and <a href="Workspace-Collisions.html#Workspace-Collisions">Workspace Collisions</a> can occur.
</p>
</dd>
<dt><code>mtn migrate_workspace [<var>directory</var>]</code>
<a name="index-mtn-migrate_005fworkspace-_005bdirectory_005d"></a>
</dt>
<dd><p>Migrates a workspace directory&rsquo;s metadata to the latest format.
</p>
<p>If no directory is given, defaults to the current workspace.
</p>
<p>This may be needed when upgrading to a new version of monotone.
</p>
</dd>
<dt><code>mtn propagate <var>sourcebranch</var> <var>destbranch</var> [--message <var>string</var>] [--message-file <var>filename</var>]</code>
<a name="index-mtn-propagate-sourcebranch-destbranch-_005b_002d_002dmessage-string_005d-_005b_002d_002dmessage_002dfile-filename_005d"></a>
</dt>
<dd><p>See online help for more options. See <a href="Common-Options.html#Common-Options">Common Options</a>.
</p>
<p>This command takes a unique head from <var>sourcebranch</var> and merges it
with a unique head of <var>destbranch</var>, using the least common
ancestor of the two heads for a 3-way merge. The resulting revision is
committed to <var>destbranch</var>. If
either <var>sourcebranch</var> or <var>destbranch</var> has multiple heads,
<code>propagate</code> aborts, doing nothing.
</p>
<p>A commit message may be provided via <samp>--message <var>string</var></samp>
or <samp>--message-file <var>filename</var></samp>. A message stating the
source and target branches will be prepended to any user commit
message.
</p>
<p>The purpose of <code>propagate</code> is to copy all the changes on
<var>sourcebranch</var>, since the last <code>propagate</code>, to
<var>destbranch</var>. This command supports the idea of making separate
branches for medium-length development activities, such as
maintenance branches for stable software releases, trivial bug fix
branches, public contribution branches, or branches devoted to the
development of a single module within a larger project.
</p>
<p><a href="Merge-Conflicts.html#Merge-Conflicts">Merge Conflicts</a> can occur.
</p>
</dd>
<dt><code>mtn refresh_inodeprints</code>
<a name="index-mtn-refresh_005finodeprints"></a>
</dt>
<dd><p>This command puts the current workspace into <a href="Inodeprints.html#Inodeprints">Inodeprints</a> mode,
if it was not already, and forces a full inodeprints cache refresh.
After running this command, you are guaranteed that your workspace is
in inodeprints mode, and that the inodeprints cache is accurate and up
to date.
</p>
<a name="mtn-setup"></a></dd>
<dt><code>mtn setup --branch <var>branchname</var> [--db <var>database</var>] [<var>directory</var>]</code>
<a name="index-mtn-setup-_002d_002dbranch-branchname-_005b_002d_002ddb-database_005d-_005bdirectory_005d"></a>
</dt>
<dd><p>This command prepares <var>directory</var> (default current directory) as a
monotone workspace, by creating and populating the <samp>_MTN</samp>
directory with basic information.
</p>
<p>If no database is given, the configured default database is created or
re-used (see <a href="User-Defaults.html#get_005fdefault_005fdatabase_005falias">get_default_database_alias</a> for more details).  Both
settings, branch and database name, will be placed in the
<samp>_MTN/options</samp> file.
</p>
<p>This can be used with an empty directory to start a new blank project,
or within an existing directory full of files, prior to using
<code>mtn commit</code>.
</p>
</dd>
</dl>

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