upstream/mercurial-mirror Files · tests/readlink.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.

Matt Mackall - - Load All Authors

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      #!/usr/bin/env python

      import errno, os, sys

      for f in sys.argv[1:]:

          try:

              print f, '->', os.readlink(f)

          except OSError, err:

              if err.errno != errno.EINVAL:

                  raise

              print f, 'not a symlink'

      sys.exit(0)

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				#!/usr/bin/env python

				import errno, os, sys

				for f in sys.argv[1:]:
				try:
				print f, '->', os.readlink(f)
				except OSError, err:
				if err.errno != errno.EINVAL:
				raise
				print f, 'not a symlink'

				sys.exit(0)