revsets.txt
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r11382 | 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. | ||||
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r15962 | 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. | ||||
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r12408 | |||
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'...'``. | ||||
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r11382 | |||
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 | ||||
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r11450 | is left out it is equivalent to ``descendants(x)``. | ||
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r11382 | |||
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. | ||||
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r14692 | |||
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r14070 | ``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. | ||||
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r11382 | |||
The following predicates are supported: | ||||
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r12821 | .. predicatesmarker | ||
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r11382 | |||
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r14098 | New predicates (known as "aliases") can be defined, using any combination of | ||
existing predicates or other aliases. An alias definition looks like:: | ||||
<alias> = <definition> | ||||
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r14693 | in the ``revsetalias`` section of a Mercurial configuration file. Arguments | ||
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r28986 | of the form `a1`, `a2`, etc. are substituted from the alias into the | ||
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r14693 | definition. | ||
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r14098 | |||
For example, | ||||
:: | ||||
[revsetalias] | ||||
h = heads() | ||||
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r28986 | d(s) = sort(s, date) | ||
rs(s, k) = reverse(sort(s, k)) | ||||
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r14098 | |||
defines three aliases, ``h``, ``d``, and ``rs``. ``rs(0:tip, author)`` is | ||||
exactly equivalent to ``reverse(sort(0:tip, author))``. | ||||
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r23742 | An infix operator ``##`` can concatenate strings and identifiers into | ||
one string. For example:: | ||||
[revsetalias] | ||||
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r28986 | issue(a1) = grep(r'\bissue[ :]?' ## a1 ## r'\b|\bbug\(' ## a1 ## r'\)') | ||
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r23742 | |||
``issue(1234)`` is equivalent to ``grep(r'\bissue[ :]?1234\b|\bbug\(1234\)')`` | ||||
in this case. This matches against all of "issue 1234", "issue:1234", | ||||
"issue1234" and "bug(1234)". | ||||
All other prefix, infix and postfix operators have lower priority than | ||||
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r28986 | ``##``. For example, ``a1 ## a2~2`` is equivalent to ``(a1 ## a2)~2``. | ||
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r23742 | |||
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r11382 | 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) | ||||
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r12659 | Some sample queries: | ||
- Changesets on the default branch:: | ||||
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r12808 | hg log -r "branch(default)" | ||
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r12659 | |||
- Changesets on the default branch since tag 1.5 (excluding merges):: | ||||
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r12808 | hg log -r "branch(default) and 1.5:: and not merge()" | ||
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r11382 | |||
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r12660 | - Open branch heads:: | ||
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r12808 | hg log -r "head() and not closed()" | ||
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r12660 | |||
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r12659 | - Changesets between tags 1.3 and 1.5 mentioning "bug" that affect | ||
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r12667 | ``hgext/*``:: | ||
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r12659 | |||
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r12808 | hg log -r "1.3::1.5 and keyword(bug) and file('hgext/*')" | ||
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r12659 | |||
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r13937 | - Changesets committed in May 2008, sorted by user:: | ||
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r12659 | |||
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r12808 | hg log -r "sort(date('May 2008'), user)" | ||
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r12659 | |||
- Changesets mentioning "bug" or "issue" that are not in a tagged | ||||
release:: | ||||
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r18469 | hg log -r "(keyword(bug) or keyword(issue)) and not ancestors(tag())" | ||