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

persistent-nodemap: properly ignore non-existent `.nd` data file...

persistent-nodemap: properly ignore non-existent `.nd` data file This code was meant to handle the case of a nodemap docket file pointing to a nodemap data file that doesn’t exist (anymore), but most likely caused an `UnboundLocalError` exception instead when `data` was used on the next line without being defined. This case is theoretically possible with a race condition between two hg processes, but is hard to reproduce or test: * Process A reads a docket file and finds a UID in it that points to a given data file name. * Process B decides that this same data file needs compacting. It writes a new one with a different UID, overwrites the docket file, then removes the old data file. * Only then process A tries to a open a file that doesn’t exist anymore. Differential Revision: https://phab.mercurial-scm.org/D9533

Augie Fackler - - Load All Authors

File last commit:

r43347:687b865b default


                r46705:8ff2d835

default

Download file

             stack.py
        
                    24 lines
            
             | 757 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / mercurial / stack.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      # stack.py - Mercurial functions for stack definition

      #

      #  Copyright Matt Mackall <mpm@selenic.com> and other

      #

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

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

      from __future__ import absolute_import

      def getstack(repo, rev=None):

          """return a sorted smartrev of the stack containing either rev if it is

          not None or the current working directory parent.

          The stack will always contain all drafts changesets which are ancestors to

          the revision and are not merges.

          """

          if rev is None:

              rev = b'.'

          revspec = b'only(%s) and not public() and not ::merge()'

          revisions = repo.revs(revspec, rev)

          revisions.sort()

          return revisions

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				# stack.py - Mercurial functions for stack definition
				#
				# Copyright Matt Mackall <mpm@selenic.com> and other
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				from __future__ import absolute_import


				def getstack(repo, rev=None):
				"""return a sorted smartrev of the stack containing either rev if it is
				not None or the current working directory parent.

				The stack will always contain all drafts changesets which are ancestors to
				the revision and are not merges.
				"""
				if rev is None:
				rev = b'.'

				revspec = b'only(%s) and not public() and not ::merge()'
				revisions = repo.revs(revspec, rev)
				revisions.sort()
				return revisions