/stdhome : revision 5

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Viewing changes to lib/stdhome/program.py

Committer: Tim Marston
Date: 2014-02-26 19:10:31 UTC
Revision ID: tim@ed.am-20140226191031-elcqy5j09h2syn2j

moved copy-in, copy-out and deployment conflict checking to a set of "walkers";
bzr vcs back-end now parses affected files during update; deployment state now
includes affected files

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lib/stdhome/program.py

import os, sys, getopt

import the

from vcs.vcs import Vcs

class Program:

def print_usage( self, error_message ):

suffix = ' ' + the.command if the.command else ''

command = ' ' + the.command if the.command else ''

self.die( error_message + \

"\nTry '%s%s --help' for more information." % \

( self.name, suffix ) )

( self.name, command ) )

def print_help( self ):

print "Usage: " + self.name + " COMMAND [OPTION]..."

# 01234567890123456789012345678901234567890123456789012345678901234567890123456789

print "Manage your home directories, across multiple computers, similar to how you"

print "would software under version control."

print "Tool to manage a set of files in your home directory and distribute them across"

print "multiple computers, merging local changes (in the same way as you would manage"

print "source code under version control)."

print "Global options (for all commands):"

print " --help display help and exit"

print " resolve try to finish an update (that had conflicts)"

print " add add local files/changes to the repository"

print " remove remove a local file from the repository"

print " status list files that have changed locally"

print " diff shows changes made to local files"

print " revert undo changes made to a local file"

print " stage-add stage local files/changes"

print " stage-remove stage the removal of files"

print " stage-revert revert staged changes"

print " stage-status show status of staging area"

print " stage-diff shows staged changes"

print " stage-commit commit staged changes to repository"

print "For help about a particular command (including the additional options that the"

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- `command`: the given command

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"""

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# commands

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if [ 'init', 'update', 'resolve', 'add', 'remove', 'revert',

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'stage-add', 'stage-remove', 'stage-revert', 'stage-status',

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'stage-commit' ].count( command ) == 1:

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if [ 'init', 'update', 'resolve', 'add', 'remove', 'revert', 'status',

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'diff', 'stage-add', 'stage-remove', 'stage-revert',

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'stage-status', 'stage-diff', 'stage-commit'

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].count( command ) == 1:

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return command

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# resolve aliases

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if the.command == None:

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self.print_usage( "bad command" )

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# calculate class name

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# calculate module and class name

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bits = the.command.split( '-' )

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class_name = 'Command'

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module_name = 'command'

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for bit in bits:

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class_name += bit[ 0 ].upper() + bit[ 1 : ]

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module_name += '_' + bit

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# instantiate the command class

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module = __import__( 'stdhome.command_' + the.command,

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# import module and instantiate the class

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module = __import__( 'stdhome.' + module_name,

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fromlist = [ class_name ] )

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instance = getattr( module, class_name )()

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# run it

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# run the command

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try:

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instance.parse_command_line()

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instance.run()

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except ( getopt.GetoptError, self.UsageError ) as e:

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except( getopt.GetoptError, self.UsageError ) as e:

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self.print_usage( e.msg )

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except Vcs.VcsError as e:

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message = e.msg.rstrip()

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if the.verbose and hasattr( e, 'output' ) and e.output:

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message += '\n\nOUTPUT:\n' + e.output.rstrip()

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self.die( message )

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except self.FatalError as e:

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message = e.msg

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if the.verbose and e.output:

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message += '\n\nOUTPUT:\n' + e.output

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self.die( message )

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self.die( e.msg )

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class UsageError( Exception ):

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class FatalError( Exception ):

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def __init__( self, message, output = None ):

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def __init__( self, message ):

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self.msg = message

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self.output = output