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hgweb: add block numbers to diff regions and related links The changeset view may show several diff regions, one per file, and this patch numbers each of them so that links produced by the filenodelink fragment can reference each diff region produced by the diffblock fragment through the use of the blockno variable made available to both of them. This permits navigation to diff regions on the changeset page from the file list, and where the :target pseudo-class is supported in browsers, permits selective presentation of diffs, showing one at a time instead of potentially many in what would otherwise be a very long page that is difficult to navigate.

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             test-atomictempfile.py
        
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      import os

      import glob

      from mercurial.util import atomictempfile

      # basic usage

      def test1_simple():

          if os.path.exists('foo'):

              os.remove('foo')

          file = atomictempfile('foo')

          (dir, basename) = os.path.split(file._tempname)

          assert not os.path.isfile('foo')

          assert basename in glob.glob('.foo-*')

          file.write('argh\n')

          file.close()

          assert os.path.isfile('foo')

          assert basename not in glob.glob('.foo-*')

          print 'OK'

      # discard() removes the temp file without making the write permanent

      def test2_discard():

          if os.path.exists('foo'):

              os.remove('foo')

          file = atomictempfile('foo')

          (dir, basename) = os.path.split(file._tempname)

          file.write('yo\n')

          file.discard()

          assert not os.path.isfile('foo')

          assert basename not in os.listdir('.')

          print 'OK'

      # if a programmer screws up and passes bad args to atomictempfile, they

      # get a plain ordinary TypeError, not infinite recursion

      def test3_oops():

          try:

              file = atomictempfile()

          except TypeError:

              print "OK"

          else:

              print "expected TypeError"

      if __name__ == '__main__':

          test1_simple()

          test2_discard()

          test3_oops()

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				import os
				import glob
				from mercurial.util import atomictempfile

				# basic usage
				def test1_simple():
				if os.path.exists('foo'):
				os.remove('foo')
				file = atomictempfile('foo')
				(dir, basename) = os.path.split(file._tempname)
				assert not os.path.isfile('foo')
				assert basename in glob.glob('.foo-*')

				file.write('argh\n')
				file.close()

				assert os.path.isfile('foo')
				assert basename not in glob.glob('.foo-*')
				print 'OK'

				# discard() removes the temp file without making the write permanent
				def test2_discard():
				if os.path.exists('foo'):
				os.remove('foo')
				file = atomictempfile('foo')
				(dir, basename) = os.path.split(file._tempname)

				file.write('yo\n')
				file.discard()

				assert not os.path.isfile('foo')
				assert basename not in os.listdir('.')
				print 'OK'

				# if a programmer screws up and passes bad args to atomictempfile, they
				# get a plain ordinary TypeError, not infinite recursion
				def test3_oops():
				try:
				file = atomictempfile()
				except TypeError:
				print "OK"
				else:
				print "expected TypeError"

				if __name__ == '__main__':
				test1_simple()
				test2_discard()
				test3_oops()