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cmdutil: core functionality to block during multistep commands (issue3955) This adds a registration point and check functions that will allow commands to check if multistep operations like an interrupted graft or rebase are in progress before proceeding.
author Matt Mackall <mpm@selenic.com>
date Wed, 24 Jul 2013 23:27:30 -0500
parents 446ab88d3f1c
children 499fc471296b
comparison
equal deleted inserted replaced
19473:10a0ae668fe6 19474:894fd1a7c533
2101 2101
2102 return cmd 2102 return cmd
2103 2103
2104 # a list of (ui, repo) functions called by commands.summary 2104 # a list of (ui, repo) functions called by commands.summary
2105 summaryhooks = util.hooks() 2105 summaryhooks = util.hooks()
2106
2107 # A list of state files kept by multistep operations like graft.
2108 # Since graft cannot be aborted, it is considered 'clearable' by update.
2109 # note: bisect is intentionally excluded
2110 # (state file, clearable, error, hint)
2111 unfinishedstates = [
2112 ('graftstate', True, _('graft in progress'),
2113 _("use 'hg graft --continue' or 'hg update' to abort"))
2114 ]
2115
2116 def checkunfinished(repo):
2117 '''Look for an unfinished multistep operation, like graft, and abort
2118 if found. It's probably good to check this right before
2119 bailifchanged().
2120 '''
2121 for f, clearable, msg, hint in unfinishedstates:
2122 if repo.vfs.exists(f):
2123 raise util.Abort(msg, hint=hint)
2124
2125 def clearunfinished(repo):
2126 '''Check for unfinished operations (as above), and clear the ones
2127 that are clearable.
2128 '''
2129 for f, clearable, msg, hint in unfinishedstates:
2130 if not clearable and repo.vfs.exists(f):
2131 raise util.Abort(msg, hint=hint)
2132 for f, clearable, msg, hint in unfinishedstates:
2133 if clearable and repo.vfs.exists(f):
2134 util.unlink(repo.join(f))