Mercurial > public > mercurial-scm > hg-stable

comparison hgext/git/gitlog.py @ 52657:d7368933f4b0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
git: switch changelog.shortest from LIKE to GLOB to speed up matching For whatever reason, LIKE is way slower than GLOB. The slowdown is a function of the number of commits in the repository. The following data has been collected on a repository with approximately 1.2M commits. The numbers are in milliseconds and they represent the latency of the changelog.shortest function as measured by time.time(). The shortest function was invoked via `hg log -l50 -T '{node|shortest}\n'`. Min. 1st Qu. Median Mean 3rd Qu. Max. 279.0 284.3 419.8 381.7 421.3 426.2 (LIKE) 0.08535 0.10437 0.12231 0.11919 0.12779 0.21291 (GLOB)
author Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
date Sat, 04 Jan 2025 09:38:51 -0500
parents 7d2fc79a3e5a
children 86920d1f7632
comparison
equal deleted inserted replaced
52656:482728ca94c1 52657:d7368933f4b0
301 nodehex = hex(node) 301 nodehex = hex(node)
302 for attempt in range(minlength, len(nodehex) + 1): 302 for attempt in range(minlength, len(nodehex) + 1):
303 candidate = nodehex[:attempt] 303 candidate = nodehex[:attempt]
304 matches = int( 304 matches = int(
305 self._db.execute( 305 self._db.execute(
306 'SELECT COUNT(*) FROM changelog WHERE node LIKE ?', 306 'SELECT COUNT(*) FROM changelog WHERE node GLOB ?',
307 (pycompat.sysstr(candidate + b'%'),), 307 (pycompat.sysstr(candidate + b'*'),),
308 ).fetchone()[0] 308 ).fetchone()[0]
309 ) 309 )
310 if matches == 1: 310 if matches == 1:
311 return candidate 311 return candidate
312 return nodehex 312 return nodehex