Mercurial > hg
view mercurial/help/revsets.txt @ 27764:dd0c5f4d1b53
util: adjust 'datapath' to be correct in a frozen OS X package
Apparently unlike py2exe, py2app copies the Mercurial source tree as-is to a
Contents/Resources subdirectory of an app bundle, and places its binary stub in
Contents/MacOS. (The Windows install has the 'hgext' and 'mercurial' modules in
'lib/library.zip', while the help and templates subdirectories have been moved
out of the mercurial directory to the root of the installation. I assume that
the python code living in a zip file is why "py2exe doesn't support __file__".)
Therefore, prior to this change, Mercurial in a frozen app bundle on OS X would
go looking for help *.txt, templates and locale info in Contents/MacOS, where
they don't exist.
There are only a handful of places that test for frozen, and not all of them are
wrong for OS X, so it seems wiser to handle them on a case by case basis, rather
that try to change mainfrozen(). The remaining cases are:
1) util.hgexecutable() wrongly points to the bundled python executable, and
affects $HG in util.system() launched processes (e.g. external hooks)
2) util.hgcmd() wrongly points to the bundled python executable, but it seems
to only affect 'hg serve -d'
3) hook._pythonhook() may be OK, since I didn't see anything outrageous when
printing sys.path from an internal hook. I'm not sure if this special
case is needed on OS X though.
4) sslutil._plainapplepython() is OK, because sys.executable is not
/usr/bin/python, nor is it in /System/Library/Frameworks
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Sun, 10 Jan 2016 17:49:01 -0500 |
parents | 3a4d8a6ce432 |
children | 97811ff79647 |
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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 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: .. predicatesmarker 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))``. An infix operator ``##`` can concatenate strings and identifiers into one string. For example:: [revsetalias] issue($1) = grep(r'\bissue[ :]?' ## $1 ## r'\b|\bbug\(' ## $1 ## r'\)') ``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 ``##``. For example, ``$1 ## $2~2`` is equivalent to ``($1 ## $2)~2``. 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())"