3
# Copyright (C) 2014 Tim Marston <tim@edm.am>
5
# This file is part of stdhome (hereafter referred to as "this program").
6
# See http://ed.am/dev/stdhome for more information.
8
# This program is free software: you can redistribute it and/or modify
9
# it under the terms of the GNU General Public License as published by
10
# the Free Software Foundation, either version 3 of the License, or
11
# (at your option) any later version.
13
# This program is distributed in the hope that it will be useful,
14
# but WITHOUT ANY WARRANTY; without even the implied warranty of
15
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16
# GNU General Public License for more details.
18
# You should have received a copy of the GNU General Public License
19
# along with this program. If not, see <http://www.gnu.org/licenses/>.
22
import sys, re, getopt
23
from command import Command
24
import stdhome.the as the
25
from stdhome.deployment import Deployment
28
class UpdateCommand( Command ):
35
def print_help( self ):
36
print "Usage: " + the.program.name + " update [--repo=REPO]"
38
# 01234567890123456789012345678901234567890123456789012345678901234567890123456789
39
print "Update a local repository and deploy changes."
41
print "Files in your home directory are copied in to the local repository, the local"
42
print "repository is then updated (i.e., changes made to it are pulled down and merged)"
43
print "and files from the local repository are then redeployed to your home directory."
45
print "If any conflicts occur, either during the merge or during the redeployment, no"
46
print "files will be deployed and you will be expected to manually intervene. Merge"
47
print "conflicts should be dealt with the same way as you'd expect for version control."
48
print "Conflicts that arise from files already existing in your home directory must be"
49
print "dealt with by moving those files aside (currently)."
51
print "You can resume the redeployment of your repository by typing:"
52
print " " + the.program.name + " resolve"
54
print "You can list outstanding conflicts by typing:"
55
print " " + the.program.name + " conflicts"
58
print " -r, --repo=REPO select the repo to check-out or create (defaults to 'home')"
59
print " -v, --verbose display information about what is being done"
60
print " --help display help and exit"
64
def parse_command_line( self ):
65
opts, args = getopt.gnu_getopt(
66
sys.argv[ 1: ], "r:v",
67
[ "repo=", "verbose", "help" ] )
68
for opt, optarg in opts:
69
if opt in [ '--repo', '-r' ]:
70
if not re.match( '^[-a-zA-z0-9.]+$', optarg ):
71
raise the.program.FatalError(
72
'invalid repository name: ' + optarg )
74
elif opt in [ '--verbose', '-v' ]:
79
# discard first argument (the command)
84
raise the.program.UsageError( 'too many arguments' )
89
# set up repo and check it exists
90
the.set_repo( self.repo )
91
the.repo.check_dir_exists()
93
# initialise deployment (and check it)
94
deployment = Deployment()
95
deployment.check_ongoing( False )
97
# check for local changes
98
if the.repo.vcs.has_changes():
99
raise the.program.FatalError(
100
'repo has local changes: %s\n'
101
'Hint: see "%s stage-revert --help"' %
102
( the.repo.name, the.program.name ) )
104
# copy-in changes to repo
107
except deployment.CopyInConflicts as e:
108
raise the.program.FatalError(
109
'Files in %s differ too severly from %s:\n %s\n' % \
110
( the.home_dir, the.repo.dir, '\n '.join( e.conflicts ) ) )
113
if the.verbose: print "updating %s" % the.repo.dir
114
updated_files = the.repo.vcs.update()
118
# check for conflicts in repo
119
files = the.repo.vcs.get_conflicts()
121
message += 'Conflicts in %s:\n %s' % \
122
( the.repo.name, '\n '.join( files ) )
124
# check for deployment conclicts
125
conflicts = deployment.get_conflicts( updated_files )
127
message += 'Deployment conflicts:\n %s' % \
128
'\n '.join( conflicts )
130
# stop if there are conflicts
132
raise the.program.FatalError(
133
'there were conflicts...\n' + message )
134
# copy-out changes from repo
135
deployment.copy_out()
137
# now we've copied-out, revert any copied-in changes!
138
if the.verbose: print "reverting %s" % the.repo.dir
139
the.repo.vcs.revert()