Mercurial supports a functional language for selecting a set of
revisions.
The language supports a number of predicates which are joined by
infix operators. Parenthesis can be used for grouping.
Identifiers such as branch names may need quoting with single or
double quotes if they contain characters like - or if they match
one of the predefined predicates.
Special characters can be used in quoted identifiers by escaping
them, e.g., \n is interpreted as a newline. To prevent them from
being interpreted, strings can be prefixed with r, e.g. r'...'.
There is a single prefix operator:
not x
Changesets not in x. Short form is ! x.
These are the supported infix operators:
x::y
A DAG range, meaning all changesets that are descendants
of x and ancestors of y, including x and y themselves. If
the first endpoint is left out, this is equivalent to
ancestors(y), if the second is left out it is equivalent
to descendants(x).
An alternative syntax is x..y.
x:y
All changesets with revision numbers between x and y, both
inclusive. Either endpoint can be left out, they default
to 0 and tip.
x and y
The intersection of changesets in x and y. Short form is x
& y.
x or y
The union of changesets in x and y. There are two
alternative short forms: x | y and x + y.
x - y
Changesets in x but not in y.
x^n
The nth parent of x, n == 0, 1, or 2. For n == 0, x; for
n == 1, the first parent of each changeset in x; for n ==
2, the second parent of changeset in x.
x~n
The nth first ancestor of x; x~0 is x; x~3 is x^^^.
There is a single postfix operator:
x^
Equivalent to x^1, the first parent of each changeset in
x.
The following predicates are supported:
adds(pattern)
Changesets that add a file matching pattern.
all()
All changesets, the same as 0:tip.
ancestor(*changeset)
Greatest common ancestor of the changesets.
Accepts 0 or more changesets. Will return empty list when
passed no args. Greatest common ancestor of a single
changeset is that changeset.
ancestors(set)
Changesets that are ancestors of a changeset in set.
author(string)
Alias for user(string).
bisect(string)
Changesets marked in the specified bisect status:
• good, bad, skip: csets explicitly marked as
good/bad/skip
• goods, bads : csets topologically good/bad
• range : csets taking part in the bisection
• pruned : csets that are goods, bads or
skipped
• untested : csets whose fate is yet unknown
• ignored : csets ignored due to DAG topology
• current : the cset currently being bisected
bookmark([name])
The named bookmark or all bookmarks.
If name starts with re:, the remainder of the name is
treated as a regular expression. To match a bookmark that
actually starts with re:, use the prefix literal:.
branch(string or set)
All changesets belonging to the given branch or the
branches of the given changesets.
If string starts with re:, the remainder of the name is
treated as a regular expression. To match a branch that
actually starts with re:, use the prefix literal:.
branchpoint()
Changesets with more than one child.
bumped()
Mutable changesets marked as successors of public
changesets.
Only non-public and non-obsolete changesets can be bumped.
bundle()
Changesets in the bundle.
Bundle must be specified by the -R option.
children(set)
Child changesets of changesets in set.
closed()
Changeset is closed.
contains(pattern)
Revision contains a file matching pattern. See hg help
patterns for information about file patterns.
converted([id])
Changesets converted from the given identifier in the old
repository if present, or all converted changesets if no
identifier is specified.
date(interval)
Changesets within the interval, see hg help dates.
desc(string)
Search commit message for string. The match is
case-insensitive.
descendants(set)
Changesets which are descendants of changesets in set.
destination([set])
Changesets that were created by a graft, transplant or
rebase operation, with the given revisions specified as
the source. Omitting the optional set is the same as
passing all().
divergent()
Final successors of changesets with an alternative set of
final successors.
draft()
Changeset in draft phase.
extinct()
Obsolete changesets with obsolete descendants only.
extra(label, [value])
Changesets with the given label in the extra metadata,
with the given optional value.
If value starts with re:, the remainder of the value is
treated as a regular expression. To match a value that
actually starts with re:, use the prefix literal:.
file(pattern)
Changesets affecting files matched by pattern.
For a faster but less accurate result, consider using
filelog() instead.
filelog(pattern)
Changesets connected to the specified filelog.
For performance reasons, filelog() does not show every
changeset that affects the requested file(s). See hg help
log for details. For a slower, more accurate result, use
file().
first(set, [n])
An alias for limit().
follow([file])
An alias for ::. (ancestors of the working copy's first
parent). If a filename is specified, the history of the
given file is followed, including copies.
grep(regex)
Like keyword(string) but accepts a regex. Use grep(r'...')
to ensure special escape characters are handled correctly.
Unlike keyword(string), the match is case-sensitive.
head()
Changeset is a named branch head.
heads(set)
Members of set with no children in set.
hidden()
Hidden changesets.
id(string)
Revision non-ambiguously specified by the given hex string
prefix.
keyword(string)
Search commit message, user name, and names of changed
files for string. The match is case-insensitive.
last(set, [n])
Last n members of set, defaulting to 1.
limit(set, [n])
First n members of set, defaulting to 1.
matching(revision [, field])
Changesets in which a given set of fields match the set of
fields in the selected revision or set.
To match more than one field pass the list of fields to
match separated by spaces (e.g. author description).
Valid fields are most regular revision fields and some
special fields.
Regular revision fields are description, author, branch,
date, files, phase, parents, substate, user and diff.
Note that author and user are synonyms. diff refers to the
contents of the revision. Two revisions matching their
diff will also match their files.
Special fields are summary and metadata: summary matches
the first line of the description. metadata is equivalent
to matching description user date (i.e. it matches the
main metadata fields).
metadata is the default field which is used when no fields
are specified. You can match more than one field at a
time.
max(set)
Changeset with highest revision number in set.
merge()
Changeset is a merge changeset.
min(set)
Changeset with lowest revision number in set.
modifies(pattern)
Changesets modifying files matched by pattern.
obsolete()
Mutable changeset with a newer version.
origin([set])
Changesets that were specified as a source for the grafts,
transplants or rebases that created the given revisions.
Omitting the optional set is the same as passing all().
If a changeset created by these operations is itself
specified as a source for one of these operations, only
the source changeset for the first operation is selected.
outgoing([path])
Changesets not found in the specified destination
repository, or the default push location.
p1([set])
First parent of changesets in set, or the working
directory.
p2([set])
Second parent of changesets in set, or the working
directory.
parents([set])
The set of all parents for all changesets in set, or the
working directory.
present(set)
An empty set, if any revision in set isn't found;
otherwise, all revisions in set.
If any of specified revisions is not present in the local
repository, the query is normally aborted. But this
predicate allows the query to continue even in such cases.
public()
Changeset in public phase.
remote([id [,path]])
Local revision that corresponds to the given identifier in
a remote repository, if present. Here, the '.' identifier
is a synonym for the current local branch.
removes(pattern)
Changesets which remove files matching pattern.
rev(number)
Revision with the given numeric identifier.
reverse(set)
Reverse order of set.
roots(set)
Changesets in set with no parent changeset in set.
secret()
Changeset in secret phase.
sort(set[, [-]key...])
Sort set by keys. The default sort order is ascending,
specify a key as -key to sort in descending order.
The keys can be:
• rev for the revision number,
• branch for the branch name,
• desc for the commit message (description),
• user for user name (author can be used as an alias),
• date for the commit date
tag([name])
The specified tag by name, or all tagged revisions if no
name is given.
unstable()
Non-obsolete changesets with obsolete ancestors.
user(string)
User name contains string. The match is case-insensitive.
If string starts with re:, the remainder of the string is
treated as a regular expression. To match a user that
actually contains re:, use the prefix literal:.
New predicates (known as "aliases") can be defined, using any
combination of existing predicates or other aliases. An alias
definition looks like:
<alias> = <definition>
in the revsetalias section of a Mercurial configuration file.
Arguments of the form $1, $2, etc. are substituted from the alias
into the definition.
For example,
[revsetalias]
h = heads()
d($1) = sort($1, date)
rs($1, $2) = reverse(sort($1, $2))
defines three aliases, h, d, and rs. rs(0:tip, author) is exactly
equivalent to reverse(sort(0:tip, author)).
Command line equivalents for hg log:
-f -> ::.
-d x -> date(x)
-k x -> keyword(x)
-m -> merge()
-u x -> user(x)
-b x -> branch(x)
-P x -> !::x
-l x -> limit(expr, x)
Some sample queries:
• Changesets on the default branch:
hg log -r "branch(default)"
• Changesets on the default branch since tag 1.5 (excluding
merges):
hg log -r "branch(default) and 1.5:: and not merge()"
• Open branch heads:
hg log -r "head() and not closed()"
• Changesets between tags 1.3 and 1.5 mentioning "bug" that
affect hgext/*:
hg log -r "1.3::1.5 and keyword(bug) and file('hgext/*')"
• Changesets committed in May 2008, sorted by user:
hg log -r "sort(date('May 2008'), user)"
• Changesets mentioning "bug" or "issue" that are not in a tagged
release:
hg log -r "(keyword(bug) or keyword(issue)) and not ancestors(tag())"
