upstream/mercurial-mirror Files · mercurial/strutil.py

shelve: remove useless and incorrect code paths for file access...

shelve: remove useless and incorrect code paths for file access This patch removes code paths in "shelvedfile.opener()", because: - explicit "vfs.mkdir()" invocation is useless "vfs.__call__()" for modes other than "read" creates parent directory of target file automatically by "util.ensuredirs()". - mode checking in "except IOError" code path is useless ENOENT occurs only for "read" mode, because target file is created forcibly for other modes. - there is no explicit "return" statement in the code path for "except IOError" if "mode[0] in 'wa'" this is incorrect, because None may be returnd unexpectedly, even though it seems the EEXIST case in the directory creation race for ".hg/shelved" and is very rare. this directory creation race is also treated in "util.ensuredirs()".

Matt Mackall - - Load All Authors

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r10263:25e57239 stable


                r19964:ff38dfbc

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             strutil.py
        
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      # strutil.py - string utilities for Mercurial

      #

      # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>

      #

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

      # GNU General Public License version 2 or any later version.

      def findall(haystack, needle, start=0, end=None):

          if end is None:

              end = len(haystack)

          if end < 0:

              end += len(haystack)

          if start < 0:

              start += len(haystack)

          while start < end:

              c = haystack.find(needle, start, end)

              if c == -1:

                  break

              yield c

              start = c + 1

      def rfindall(haystack, needle, start=0, end=None):

          if end is None:

              end = len(haystack)

          if end < 0:

              end += len(haystack)

          if start < 0:

              start += len(haystack)

          while end >= 0:

              c = haystack.rfind(needle, start, end)

              if c == -1:

                  break

              yield c

              end = c - 1

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				# strutil.py - string utilities for Mercurial
				#
				# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				def findall(haystack, needle, start=0, end=None):
				if end is None:
				end = len(haystack)
				if end < 0:
				end += len(haystack)
				if start < 0:
				start += len(haystack)
				while start < end:
				c = haystack.find(needle, start, end)
				if c == -1:
				break
				yield c
				start = c + 1

				def rfindall(haystack, needle, start=0, end=None):
				if end is None:
				end = len(haystack)
				if end < 0:
				end += len(haystack)
				if start < 0:
				start += len(haystack)
				while end >= 0:
				c = haystack.rfind(needle, start, end)
				if c == -1:
				break
				yield c
				end = c - 1