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# User Dan Villiom Podlaski Christiansen <danchr@gmail.com>...
# User Dan Villiom Podlaski Christiansen <danchr@gmail.com> # Date 1289564504 -3600 # Node ID b75264c15cc888cf38c3c7b8f619801e3c2589c7 # Parent 89b2e5d940f669e590096c6be70eee61c9172fff revsets: overload the branch() revset to also take a branch name. This should only change semantics in the specific case of a tag/branch conflict where the tag wasn't done on the branch with the same name. Previously, branch(whatever) would resolve to the branch of the tag in that case, whereas now it will resolve to the branch of the name. The previous behaviour, while documented, seemed very counter-intuitive to me. An alternate approach would be to introduce a new revset such as branchname() or namedbranch(). While this would retain backwards compatibility, the distinction between it and branch() would not be readily apparent to users. The most intuitive behaviour would be to have branch(x) require 'x' to be a branch name, and something like branchof(x) or samebranch(x) do what branch(x) currently does. Unfortunately, our backwards compatibility guarantees prevent us from doing that. Please note that while 'hg tag' guards against shadowing a branch, 'hg branch' does not. Besides, even if it did, that wouldn't solve the issue of conversions with such tags and branches...

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revsets.txt
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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 must be quoted with single or double
quotes if they contain characters outside of
``[._a-zA-Z0-9\x80-\xff]`` 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.
The following predicates are supported:
.. predicatesmarker
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 in committed 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(tagged())"