Mercurial > hg
view mercurial/scmposix.py @ 20613:10433163bf57
revset: add 'only' revset
Adds a only() revset that has two forms:
only(<set>) is equivalent to "::<set> - ::(heads() - heads(<set>::))"
only(<include>,<exclude>) is equivalent to "::<include> - ::<exclude>"
On a large repo, this implementation can process/traverse 50,000 revs in 0.7
seconds, versus 4.2 seconds using "::<include> - ::<exclude>".
This is useful for performing histedits on your branch:
hg histedit -r 'first(only(.))'
Or lifting branch foo off of branch bar:
hg rebase -d @ -s 'only(foo, bar)'
Or a variety of other uses.
author | Durham Goode <durham@fb.com> |
---|---|
date | Sat, 16 Nov 2013 08:57:08 -0800 |
parents | 4c6f7f0dadab |
children | 23c995ed466b |
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import sys, os import osutil def _rcfiles(path): rcs = [os.path.join(path, 'hgrc')] rcdir = os.path.join(path, 'hgrc.d') try: rcs.extend([os.path.join(rcdir, f) for f, kind in osutil.listdir(rcdir) if f.endswith(".rc")]) except OSError: pass return rcs def systemrcpath(): path = [] if sys.platform == 'plan9': root = 'lib/mercurial' else: root = 'etc/mercurial' # old mod_python does not set sys.argv if len(getattr(sys, 'argv', [])) > 0: p = os.path.dirname(os.path.dirname(sys.argv[0])) path.extend(_rcfiles(os.path.join(p, root))) path.extend(_rcfiles('/' + root)) return path def userrcpath(): if sys.platform == 'plan9': return [os.environ['home'] + '/lib/hgrc'] else: return [os.path.expanduser('~/.hgrc')]