upstream/mercurial-mirror Files · contrib/fixpax.py

perf: perform a garbage collection before each iteration...

perf: perform a garbage collection before each iteration Currently, no explicit garbage collection is performed when running the microbenchmarks in `hg perf`. I think this is wrong because garbage collection can have a significant impact on execution times. And, if gc is triggered via the default heuristics, it will fire effectively randomly during subsequent benchmark iterations due to variable amount of garbage left over from previous runs. Running a gc before invoking the measured function will help ensure state is more consistent across all iterations.

Pulkit Goyal - - Load All Authors

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      #!/usr/bin/env python

      # fixpax - fix ownership in bdist_mpkg output

      #

      # Copyright 2015 Matt Mackall <mpm@selenic.com>

      #

      # This software may be used and distributed according to the terms of the

      # MIT license (http://opensource.org/licenses/MIT)

      """Set file ownership to 0 in an Archive.pax.gz.

      Suitable for fixing files bdist_mpkg output:

      *.mpkg/Contents/Packages/*.pkg/Contents/Archive.pax.gz

      """

      from __future__ import absolute_import, print_function

      import gzip

      import os

      import sys

      def fixpax(iname, oname):

          i = gzip.GzipFile(iname)

          o = gzip.GzipFile(oname, "w")

          while True:

              magic = i.read(6)

              dev = i.read(6)

              ino = i.read(6)

              mode = i.read(6)

              i.read(6) # uid

              i.read(6) # gid

              nlink = i.read(6)

              rdev = i.read(6)

              mtime = i.read(11)

              namesize = i.read(6)

              filesize = i.read(11)

              name = i.read(int(namesize, 8))

              data = i.read(int(filesize, 8))

              o.write(magic)

              o.write(dev)

              o.write(ino)

              o.write(mode)

              o.write("000000")

              o.write("000000")

              o.write(nlink)

              o.write(rdev)

              o.write(mtime)

              o.write(namesize)

              o.write(filesize)

              o.write(name)

              o.write(data)

              if name.startswith("TRAILER!!!"):

                  o.write(i.read())

                  break

          o.close()

          i.close()

      if __name__ == '__main__':

          for iname in sys.argv[1:]:

              print('fixing file ownership in %s' % iname)

              oname = sys.argv[1] + '.tmp'

              fixpax(iname, oname)

              os.rename(oname, iname)

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				#!/usr/bin/env python
				# fixpax - fix ownership in bdist_mpkg output
				#
				# Copyright 2015 Matt Mackall <mpm@selenic.com>
				#
				# This software may be used and distributed according to the terms of the
				# MIT license (http://opensource.org/licenses/MIT)

				"""Set file ownership to 0 in an Archive.pax.gz.
				Suitable for fixing files bdist_mpkg output:
				.mpkg/Contents/Packages/.pkg/Contents/Archive.pax.gz
				"""

				from __future__ import absolute_import, print_function
				import gzip
				import os
				import sys

				def fixpax(iname, oname):
				i = gzip.GzipFile(iname)
				o = gzip.GzipFile(oname, "w")

				while True:
				magic = i.read(6)
				dev = i.read(6)
				ino = i.read(6)
				mode = i.read(6)
				i.read(6) # uid
				i.read(6) # gid
				nlink = i.read(6)
				rdev = i.read(6)
				mtime = i.read(11)
				namesize = i.read(6)
				filesize = i.read(11)
				name = i.read(int(namesize, 8))
				data = i.read(int(filesize, 8))

				o.write(magic)
				o.write(dev)
				o.write(ino)
				o.write(mode)
				o.write("000000")
				o.write("000000")
				o.write(nlink)
				o.write(rdev)
				o.write(mtime)
				o.write(namesize)
				o.write(filesize)
				o.write(name)
				o.write(data)

				if name.startswith("TRAILER!!!"):
				o.write(i.read())
				break

				o.close()
				i.close()

				if __name__ == '__main__':
				for iname in sys.argv[1:]:
				print('fixing file ownership in %s' % iname)
				oname = sys.argv[1] + '.tmp'
				fixpax(iname, oname)
				os.rename(oname, iname)