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Ilya Grigoriev f67d6a192c docs SEO (direct website push): Use "latest" URL as canonical URL for older versions
The replacement was done by `sed`.

This should only change versions of the docs prior to 864869ab (in
particular, not the `latest` version nor the `prerelease` version), and
make it as though the old version of the docs were compiled with that
commit. It tries to solve the same problem:
https://www.google.com/search?q=jj+revsets still points to jj v0.13
docs.

Google seems really slow to update its index, and I'm beginning to worry
that it might think we have a spammy site with many almost identical
pages. I hope it will pick up this change once it tries to update its
crawl of pages it's already indexing.

Loosely related reading: https://news.ycombinator.com/item?id=40970987
2024-07-25 14:29:08 -07:00

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Revset language
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Revset language
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<article class="md-content__inner md-typeset">
<h1 id="revsets">Revsets<a class="headerlink" href="#revsets" title="Permanent link">&para;</a></h1>
<p>Jujutsu supports a functional language for selecting a set of revisions.
Expressions in this language are called "revsets" (the idea comes from
<a href="https://www.mercurial-scm.org/repo/hg/help/revsets">Mercurial</a>). The language
consists of symbols, operators, and functions.</p>
<p>Most <code>jj</code> commands accept a revset (or multiple). Many commands, such as
<code>jj diff -r &lt;revset&gt;</code> expect the revset to resolve to a single commit; it is
an error to pass a revset that resolves to more than one commit (or zero
commits) to such commands.</p>
<p>The words "revisions" and "commits" are used interchangeably in this document.</p>
<p>The commits listed by <code>jj log</code> without arguments are called "visible commits".
Other commits are only included if you explicitly mention them (e.g. by commit
ID or a Git ref pointing to them).</p>
<h2 id="symbols">Symbols<a class="headerlink" href="#symbols" title="Permanent link">&para;</a></h2>
<p>The <code>@</code> expression refers to the working copy commit in the current workspace.
Use <code>&lt;workspace name&gt;@</code> to refer to the working-copy commit in another
workspace. Use <code>&lt;name&gt;@&lt;remote&gt;</code> to refer to a remote-tracking branch.</p>
<p>A full commit ID refers to a single commit. A unique prefix of the full commit
ID can also be used. It is an error to use a non-unique prefix.</p>
<p>A full change ID refers to all visible commits with that change ID (there is
typically only one visible commit with a given change ID). A unique prefix of
the full change ID can also be used. It is an error to use a non-unique prefix.</p>
<p>Use double quotes to prevent a symbol from being interpreted as an expression.
For example, <code>"x-"</code> is the symbol <code>x-</code>, not the parents of symbol <code>x</code>.
Taking shell quoting into account, you may need to use something like
<code>jj log -r '"x-"'</code>.</p>
<h3 id="priority">Priority<a class="headerlink" href="#priority" title="Permanent link">&para;</a></h3>
<p>Jujutsu attempts to resolve a symbol in the following order:</p>
<ol>
<li>Tag name</li>
<li>Branch name</li>
<li>Git ref</li>
<li>Commit ID or change ID</li>
</ol>
<h2 id="operators">Operators<a class="headerlink" href="#operators" title="Permanent link">&para;</a></h2>
<p>The following operators are supported. <code>x</code> and <code>y</code> below can be any revset, not
only symbols.</p>
<ul>
<li><code>x &amp; y</code>: Revisions that are in both <code>x</code> and <code>y</code>.</li>
<li><code>x | y</code>: Revisions that are in either <code>x</code> or <code>y</code> (or both).</li>
<li><code>x ~ y</code>: Revisions that are in <code>x</code> but not in <code>y</code>.</li>
<li><code>~x</code>: Revisions that are not in <code>x</code>.</li>
<li><code>x-</code>: Parents of <code>x</code>.</li>
<li><code>x+</code>: Children of <code>x</code>.</li>
<li><code>::x</code>: Ancestors of <code>x</code>, including the commits in <code>x</code> itself.</li>
<li><code>x::</code>: Descendants of <code>x</code>, including the commits in <code>x</code> itself.</li>
<li><code>x::y</code>: Descendants of <code>x</code> that are also ancestors of <code>y</code>. Equivalent
to <code>x:: &amp; ::y</code>. This is what <code>git log</code> calls <code>--ancestry-path x..y</code>.</li>
<li><code>::</code>: All visible commits in the repo. Equivalent to <code>all()</code>.</li>
<li><code>:x</code>, <code>x:</code>, and <code>x:y</code>: Deprecated versions of <code>::x</code>, <code>x::</code>, and <code>x::y</code> We
plan to delete them in jj 0.15+.</li>
<li><code>x..y</code>: Ancestors of <code>y</code> that are not also ancestors of <code>x</code>. Equivalent to
<code>::y ~ ::x</code>. This is what <code>git log</code> calls <code>x..y</code> (i.e. the same as we call it).</li>
<li><code>..x</code>: Ancestors of <code>x</code>, including the commits in <code>x</code> itself, but excluding
the root commit. Equivalent to <code>::x ~ root()</code>.</li>
<li><code>x..</code>: Revisions that are not ancestors of <code>x</code>.</li>
<li><code>..</code>: All visible commits in the repo, but excluding the root commit.
Equivalent to <code>~root()</code>.</li>
</ul>
<p>You can use parentheses to control evaluation order, such as <code>(x &amp; y) | z</code> or
<code>x &amp; (y | z)</code>.</p>
<h2 id="functions">Functions<a class="headerlink" href="#functions" title="Permanent link">&para;</a></h2>
<p>You can also specify revisions by using functions. Some functions take other
revsets (expressions) as arguments.</p>
<ul>
<li><code>parents(x)</code>: Same as <code>x-</code>.</li>
<li><code>children(x)</code>: Same as <code>x+</code>.</li>
<li><code>ancestors(x[, depth])</code>: <code>ancestors(x)</code> is the same as <code>::x</code>.
<code>ancestors(x, depth)</code> returns the ancestors of <code>x</code> limited to the given
<code>depth</code>.</li>
<li><code>descendants(x)</code>: Same as <code>x::</code>.</li>
<li><code>connected(x)</code>: Same as <code>x::x</code>. Useful when <code>x</code> includes several commits.</li>
<li><code>all()</code>: All visible commits in the repo.</li>
<li><code>none()</code>: No commits. This function is rarely useful; it is provided for
completeness.</li>
<li><code>branches([pattern])</code>: All local branch targets. If <code>pattern</code> is specified,
branches whose name contains the given string are selected. For example,
<code>branches(push)</code> would match the branches <code>push-123</code> and <code>repushed</code> but not
the branch <code>main</code>. If a branch is in a conflicted state, all its possible
targets are included.</li>
<li><code>remote_branches([branch_pattern[, [remote=]remote_pattern]])</code>: All remote
branch targets across all remotes. If just the <code>branch_pattern</code> is specified,
branches whose name contains the given string across all remotes are
selected. If both <code>branch_pattern</code> and <code>remote_pattern</code> are specified, the
selection is further restricted to just the remotes whose name contains
<code>remote_pattern</code>. For example, <code>remote_branches(push, ri)</code> would match the
branches <code>push-123@origin</code> and <code>repushed@private</code> but not <code>push-123@upstream</code>
or <code>main@origin</code> or <code>main@upstream</code>. If a branch is in a conflicted state,
all its possible targets are included.</li>
<li><code>tags()</code>: All tag targets. If a tag is in a conflicted state, all its
possible targets are included.</li>
<li><code>git_refs()</code>: All Git ref targets as of the last import. If a Git ref
is in a conflicted state, all its possible targets are included.</li>
<li><code>git_head()</code>: The Git <code>HEAD</code> target as of the last import. Equivalent to
<code>present(HEAD@git)</code>.</li>
<li><code>visible_heads()</code>: All visible heads (same as <code>heads(all())</code>).</li>
<li><code>root()</code>: The virtual commit that is the oldest ancestor of all other commits.</li>
<li><code>heads(x)</code>: Commits in <code>x</code> that are not ancestors of other commits in <code>x</code>.
Note that this is different from
<a href="https://repo.mercurial-scm.org/hg/help/revsets">Mercurial's</a> <code>heads(x)</code>
function, which is equivalent to <code>x ~ x-</code>.</li>
<li><code>roots(x)</code>: Commits in <code>x</code> that are not descendants of other commits in <code>x</code>.
Note that this is different from
<a href="https://repo.mercurial-scm.org/hg/help/revsets">Mercurial's</a> <code>roots(x)</code>
function, which is equivalent to <code>x ~ x+</code>.</li>
<li><code>latest(x[, count])</code>: Latest <code>count</code> commits in <code>x</code>, based on committer
timestamp. The default <code>count</code> is 1.</li>
<li><code>merges()</code>: Merge commits.</li>
<li><code>description(pattern)</code>: Commits with the given string in their
description.</li>
<li><code>author(pattern)</code>: Commits with the given string in the author's name or
email.</li>
<li><code>mine()</code>: Commits where the author's email matches the email of the current
user.</li>
<li><code>committer(pattern)</code>: Commits with the given string in the committer's
name or email.</li>
<li><code>empty()</code>: Commits modifying no files. This also includes <code>merges()</code> without
user modifications and <code>root()</code>.</li>
<li><code>file(pattern..)</code>: Commits modifying the paths specified by the <code>pattern..</code>.
Paths are relative to the directory <code>jj</code> was invoked from. A directory name
will match all files in that directory and its subdirectories. For example,
<code>file(foo)</code> will match files <code>foo</code>, <code>foo/bar</code>, <code>foo/bar/baz</code>, but not file
<code>foobar</code>.</li>
<li><code>conflict()</code>: Commits with conflicts.</li>
<li><code>present(x)</code>: Same as <code>x</code>, but evaluated to <code>none()</code> if any of the commits
in <code>x</code> doesn't exist (e.g. is an unknown branch name.)</li>
</ul>
<h2 id="string-patterns">String patterns<a class="headerlink" href="#string-patterns" title="Permanent link">&para;</a></h2>
<p>Functions that perform string matching support the following pattern syntax.</p>
<ul>
<li><code>"string"</code>, <code>substring:"string"</code>: Matches strings that contain <code>string</code>.</li>
<li><code>exact:"string"</code>: Matches strings exactly equal to <code>string</code>.</li>
</ul>
<h2 id="aliases">Aliases<a class="headerlink" href="#aliases" title="Permanent link">&para;</a></h2>
<p>New symbols and functions can be defined in the config file, by using any
combination of the predefined symbols/functions and other aliases.</p>
<p>For example:</p>
<div class="highlight"><pre><span></span><code><span class="k">[revset-aliases]</span>
<span class="s">&#39;mine&#39;</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">&#39;author(martinvonz)&#39;</span>
<span class="s">&#39;user(x)&#39;</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">&#39;author(x) | committer(x)&#39;</span>
</code></pre></div>
<h3 id="built-in-aliases">Built-in Aliases<a class="headerlink" href="#built-in-aliases" title="Permanent link">&para;</a></h3>
<p>The following aliases are built-in and used for certain operations. These functions
are defined as aliases in order to allow you to overwrite them as needed.
See <a href="https://github.com/martinvonz/jj/blob/main/cli/src/config/revsets.toml">revsets.toml</a>
for a comprehensive list.</p>
<ul>
<li><code>trunk()</code>: Resolves to the head commit for the trunk branch of the remote
named <code>origin</code> or <code>upstream</code>. The branches <code>main</code>, <code>master</code>, and <code>trunk</code> are
tried. If more than one potential trunk commit exists, the newest one is
chosen. If none of the branches exist, the revset evaluates to <code>root()</code>.</li>
</ul>
<p>You can <a href="../config/">override</a> this as appropriate. If you do, make sure it
always resolves to exactly one commit. For example:</p>
<div class="highlight"><pre><span></span><code><span class="k">[revset-aliases]</span>
<span class="s">&#39;trunk()&#39;</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">&#39;your-branch@your-remote&#39;</span>
</code></pre></div>
<h2 id="examples">Examples<a class="headerlink" href="#examples" title="Permanent link">&para;</a></h2>
<p>Show the parent(s) of the working-copy commit (like <code>git log -1 HEAD</code>):</p>
<div class="highlight"><pre><span></span><code>jj log -r @-
</code></pre></div>
<p>Show commits not on any remote branch:</p>
<div class="highlight"><pre><span></span><code>jj log -r &#39;remote_branches()..&#39;
</code></pre></div>
<p>Show commits not on <code>origin</code> (if you have other remotes like <code>fork</code>):</p>
<div class="highlight"><pre><span></span><code>jj log -r &#39;remote_branches(remote=origin)..&#39;
</code></pre></div>
<p>Show all ancestors of the working copy (almost like plain <code>git log</code>)</p>
<div class="highlight"><pre><span></span><code>jj log -r ::@
</code></pre></div>
<p>Show the initial commits in the repo (the ones Git calls "root commits"):</p>
<div class="highlight"><pre><span></span><code>jj log -r root()+
</code></pre></div>
<p>Show some important commits (like <code>git --simplify-by-decoration</code>):</p>
<div class="highlight"><pre><span></span><code>jj log -r &#39;tags() | branches()&#39;
</code></pre></div>
<p>Show local commits leading up to the working copy, as well as descendants of
those commits:</p>
<div class="highlight"><pre><span></span><code>jj log -r &#39;(remote_branches()..@)::&#39;
</code></pre></div>
<p>Show commits authored by "martinvonz" and containing the word "reset" in the
description:</p>
<div class="highlight"><pre><span></span><code>jj log -r &#39;author(martinvonz) &amp; description(reset)&#39;
</code></pre></div>
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