Mercurial > hg
view tests/hghave @ 20836:a8b4541bb961
grep: reuse the first "util.binary()" result for efficiency
Before this patch, to check whether the file in the specified revision
is binary or not, "util.binary()" is invoked via internal function
"binary()" of "hg grep" once per a line of "hg grep" output, even
though binary-ness is not changed in the same file.
This patch reuses the first "util.binary()" invocation result by
annotating internal function "binary()" with "@util.cachefunc".
Performance improvement measured by "hgperf grep -r 88d8e568add1 vfs
mercurial/scmutil.py":
before this patch:
! wall 0.024000 comb 0.015600 user 0.015600 sys 0.000000 (best of 118)
after this patch:
! wall 0.023000 comb 0.015600 user 0.015600 sys 0.000000 (best of 123)
Status of recent(88d8e568add1) "mercurial/scmutil.py":
# of lines: 919 (may affect cost of search)
# of bytes: 29633 (may affect cost of "util.binary()")
# of matches: 22 (may affect frequency of "util.binary()")
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Sat, 15 Feb 2014 19:52:36 +0900 |
parents | 77d06793a20d |
children | 05b3238ba901 |
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#!/usr/bin/env python """Test the running system for features availability. Exit with zero if all features are there, non-zero otherwise. If a feature name is prefixed with "no-", the absence of feature is tested. """ import optparse import sys import hghave checks = hghave.checks def list_features(): for name, feature in checks.iteritems(): desc = feature[1] print name + ':', desc def test_features(): failed = 0 for name, feature in checks.iteritems(): check, _ = feature try: check() except Exception, e: print "feature %s failed: %s" % (name, e) failed += 1 return failed parser = optparse.OptionParser("%prog [options] [features]") parser.add_option("--test-features", action="store_true", help="test available features") parser.add_option("--list-features", action="store_true", help="list available features") parser.add_option("-q", "--quiet", action="store_true", help="check features silently") if __name__ == '__main__': options, args = parser.parse_args() if options.list_features: list_features() sys.exit(0) if options.test_features: sys.exit(test_features()) quiet = options.quiet failures = 0 def error(msg): global failures if not quiet: sys.stderr.write(msg + '\n') failures += 1 for feature in args: negate = feature.startswith('no-') if negate: feature = feature[3:] if feature not in checks: error('skipped: unknown feature: ' + feature) sys.exit(2) check, desc = checks[feature] try: available = check() except Exception, e: error('hghave check failed: ' + feature) continue if not negate and not available: error('skipped: missing feature: ' + desc) elif negate and available: error('skipped: system supports %s' % desc) if failures != 0: sys.exit(1)