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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, os
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from subprocess import call
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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.status import StatusWalker
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class DiffCommand( Command ):
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def print_help( self ):
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print "Usage: " + the.program.name + " diff [--repo=REPO] [FILE]..."
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# 01234567890123456789012345678901234567890123456789012345678901234567890123456789
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print "Show differences between the files in the local repository and those in the home"
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print "This runs the diff command, showing you differences made to files in the home"
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print "directory as compared to the files in the local repository. The differences"
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print "between all files in the local repository are shown by default, or you can"
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print "specify files that you are interested in."
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print "To see a list files that this command will show differences for, you can go:"
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print " " + the.program.name + " status"
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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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[ "repo=", "verbose", "help" ] )
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for opt, optarg in opts:
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if opt in [ '--repo', '-r' ]:
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if not re.match( '^[-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 [ '--verbose', '-v' ]:
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# discard first argument (the command)
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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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walker = StatusWalker( files if files else None )
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# information (rather than modifications) come first
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for file in walker.missing:
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message += "\033[33m=== missing file '%s'\n" % file
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for file in walker.changed:
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message += "\033[33m=== kind changed '%s'\n" % file
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if message: print message.rstrip()
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for file in walker.modified:
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print ( "\033[33m=== modified '%s'\n" % file ).rstrip()
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call( [ 'colordiff', '-ud',
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os.path.join( the.repo.full_dir, file ),
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os.path.join( the.full_home_dir, file ) ] )