bzr branch
http://bzr.ed.am/stdhome
8
by Tim Marston
added diff command; moved all command to commands subdir; made stage-revert |
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# stage_revert.py |
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# |
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# Copyright (C) 2014 Tim Marston <tim@edm.am> |
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# |
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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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# |
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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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# |
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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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# |
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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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class StageRevertCommand( Command ): |
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def __init__( self ): |
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self.force = False |
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def print_help( self ): |
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print("Usage: " + the.program.name + " stage-revert [--repo=REPO]") |
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print() |
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# 01234567890123456789012345678901234567890123456789012345678901234567890123456789 |
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print("Revert any modifications made to a local repository, losing those changes.") |
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print() |
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print("In addition to using the add and remove commands, you can also manually modify") |
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print("the files in a local repository and then commit them to a remote repository as") |
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print("required. This can be done with the staging commands.") |
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print() |
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print("When files in your local repository have been modified, several of the primary") |
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print("commands of this program will not be able to function. This command reverts all") |
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print("modifications to a local repository so that the primary commands can work again.") |
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print("If you have not used any of the staging commands, it is safe to revert a local") |
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print("repository.") |
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print() |
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print("Options:") |
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print(" --force force revert of stage (when there is a problem)") |
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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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exit( 0 ) |
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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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[ "force", "repo=", "verbose", "help" ] ) |
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for opt, optarg in opts: |
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if opt == "--force": |
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self.force = True |
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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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the.repo = optarg |
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elif opt in [ '--verbose', '-v' ]: |
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the.verbose += 1 |
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elif opt == "--help": |
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self.print_help() |
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# discard first argument (the command) |
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args.pop( 0 ) |
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# remaining arguments |
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if len( args ): |
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raise the.program.UsageError( 'too many arguments' ) |
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def run( self ): |
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# set up repo and check it exists |
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the.repo.check_dir_exists() |
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added diff command; moved all command to commands subdir; made stage-revert |
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# initialise deployment |
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deployment = Deployment() |
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if deployment.is_ongoing() and deployment.get_initial_revno() is None \ |
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and not self.force: |
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raise RuntimeError( |
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"can't revert ongoing deployment: initial revno is missing!\n" |
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"use --force to override, but an update may miss changes!" ) |
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# check for local changes |
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if the.verbose >= 1: print("reverting %s" % the.repo.dir) |
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the.repo.vcs.revert( deployment.get_initial_revno() ) |
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moved copy-in, copy-out and deployment conflict checking to a set of "walkers"; |
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# remove deployment state |
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deployment.remove_deployment_state() |