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Viewing changes to lib/stdhome/command/stage_revert.py

  • Committer: Tim Marston
  • Date: 2021-07-05 19:14:32 UTC
  • Revision ID: tim@ed.am-20210705191432-243ayb7s2nmussvi
python3ification

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lib/stdhome/command/stage_revert.py
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import sys, re, getopt
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from command import Command
 
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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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                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 "  -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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                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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                        [ "repo=", "verbose", "help" ] )
 
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                        [ "force", "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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                        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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                                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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                # 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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                        raise RunteimError(
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                                "can't revert ongoing deployment: initial revno is missing!" )
 
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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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                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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                # remove deployment state