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# Copyright (C) 2014 Tim Marston <tim@edm.am>
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# This file is part of stdhome (hereafter referred to as "this program").
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# See http://ed.am/dev/stdhome for more information.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys, re, getopt
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from command import Command
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import stdhome.the as the
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from stdhome.deployment import Deployment
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from stdhome.walker.copy_out import CopyOutWalker
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class RevertCommand( Command ):
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def print_help( self ):
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print "Usage: " + the.program.name + " revert [--repo=REPO] [--all] [FILE]..."
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# 01234567890123456789012345678901234567890123456789012345678901234567890123456789
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print "Revert any local changes to a file in the home directory."
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print "This reverts the content of the named files, in the local filesystem, specified"
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print "relative to the home directory, to its state in the repo. Specifying individual"
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print "files and directories will revert them (recursively, in the case of"
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print "directories). Or you can revert all files in your home directory by specifying"
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print "no files and explicitly using the --all option."
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print "To see a list files that can be reverted, type:"
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print " " + the.program.name + " status"
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print " --all confirm that you want to revert all files"
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print " --quiet do not report changes to the home directory"
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print " -r, --repo=REPO select the repo to check-out or create (defaults to 'home')"
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print " -v, --verbose display information about what is being done"
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print " --help display help and exit"
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def parse_command_line( self ):
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opts, args = getopt.gnu_getopt(
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sys.argv[ 1: ], "r:v",
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[ "all", "quiet", "repo=", "verbose", "help" ] )
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for opt, optarg in opts:
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elif opt == "--quiet":
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elif opt in [ '--repo', '-r' ]:
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if not re.search( '^[-a-zA-z0-9.]+$', optarg ):
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raise the.program.FatalError(
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'invalid repository name: ' + optarg )
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elif opt in [ '-v', '--verbose' ]:
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# discard first argument (the command)
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# check that either files or --all was given
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if len( self.files ) == 0 and not self.all:
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raise the.program.UsageError(
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"no files were specified and --all was not given" )
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if len( self.files ) > 0 and self.all:
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raise the.program.UsageError(
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"files specified, which conflicts with using --all" )
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# set up repo and check it exists
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the.repo.check_dir_exists()
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files = self.expand_files( self.files )
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# initialise deployment and ensure it's not ongoing
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deployment = Deployment()
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deployment.check_ongoing( False )
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# check for local changes
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if the.repo.vcs.has_changes():
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raise the.program.FatalError(
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'repo has local changes: %s\n'
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'Hint: see "%s stage-revert --help"' %
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( the.repo.name, the.program.name ) )
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walker = CopyOutWalker( files if files else None, self.quiet )