upstream/mercurial-mirror Files · tests/svn-safe-append.py

revset: make descendants() lazier...

revset: make descendants() lazier Previously descendants() would force the provided subset to become a set. In the case of revsets like '(%ld::) - (%ld)' (as used by histedit) this would force the '- (%ld)' set to be evaluated, which produced a set containing every commit in the repo (except %ld). This takes 0.6s on large repos. This changes descendants to trust the subset to implement __contains__ efficiently, which improves the above revset to 0.16s. Shaving 0.4 seconds off of histedit. revset : (20000::) - (20000) 0) obsolete feature not enabled but 54243 markers found! ! wall 0.023640 comb 0.020000 user 0.020000 sys 0.000000 (best of 100) 1) obsolete feature not enabled but 54243 markers found! ! wall 0.019589 comb 0.020000 user 0.020000 sys 0.000000 (best of 100) This commit removes the final revset related perf hotspot from histedit. Combined with the previous two patches, they shave a little over 3 seconds off histedit on large repos.

Peter Arrenbrecht - - Load All Authors

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      #!/usr/bin/env python

      __doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b.

      Without this svn will not detect workspace changes."""

      import sys, os

      text = sys.argv[1]

      fname = sys.argv[2]

      f = open(fname, "ab")

      try:

          before = os.fstat(f.fileno()).st_mtime

          f.write(text)

          f.write("\n")

      finally:

          f.close()

      inc = 1

      now = os.stat(fname).st_mtime

      while now == before:

          t = now + inc

          inc += 1

          os.utime(fname, (t, t))

          now = os.stat(fname).st_mtime

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				#!/usr/bin/env python

				__doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b.
				Without this svn will not detect workspace changes."""

				import sys, os

				text = sys.argv[1]
				fname = sys.argv[2]

				f = open(fname, "ab")
				try:
				before = os.fstat(f.fileno()).st_mtime
				f.write(text)
				f.write("\n")
				finally:
				f.close()
				inc = 1
				now = os.stat(fname).st_mtime
				while now == before:
				t = now + inc
				inc += 1
				os.utime(fname, (t, t))
				now = os.stat(fname).st_mtime