/stdhome

To get this branch, use:
bzr branch http://bzr.ed.am/stdhome

« back to all changes in this revision

Viewing changes to lib/stdhome/command_init.py

  • Committer: Tim Marston
  • Date: 2014-01-05 11:51:35 UTC
  • Revision ID: tim@ed.am-20140105115135-6ses87ggwyjrxzfj
added global objects (the.repo, the.program), deployment object and implemented
init command

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
 
# init.py
 
1
# command_init.py
2
2
#
3
3
# Copyright (C) 2013 Tim Marston <tim@edm.am>
4
4
#
20
20
 
21
21
 
22
22
import sys, os, re, getopt, shutil, subprocess
23
 
from command import Command
24
 
import stdhome.the as the
25
 
from stdhome.deployment import Deployment
26
 
 
27
 
 
28
 
class InitCommand( Command ):
 
23
import the, deployment
 
24
from subprocess import Popen
 
25
 
 
26
 
 
27
class CommandInit:
 
28
 
 
29
 
 
30
        def __init__( self ):
 
31
                self.repo = None
29
32
 
30
33
 
31
34
        def print_help( self ):
41
44
                print "hostname, it is internally expanded to scp://HOSTNAME/~/.stdhome/REPO)."
42
45
                print
43
46
                print "Options:"
44
 
                print "      --quiet      do not report changes to the home directory"
45
47
                print "  -r, --repo=REPO  select the repo to check-out or create (defaults to 'home')"
46
 
                print "  -v, --verbose    display information about what is being done"
47
48
                print "      --help       display help and exit"
48
49
                exit( 0 )
49
50
 
51
52
        def parse_command_line( self ):
52
53
                opts, args = getopt.gnu_getopt(
53
54
                        sys.argv[ 1: ], "r:v",
54
 
                        [ "quiet", "repo=", "verbose", "help" ] )
 
55
                        [ "repo=", "verbose", "help" ] )
55
56
                for opt, optarg in opts:
56
 
                        if opt == "--quiet":
57
 
                                self.quiet = True
58
 
                        elif opt in [ '--repo', '-r' ]:
59
 
                                if not re.search( '^[-a-zA-z0-9.]+$', optarg ):
60
 
                                        raise the.program.FatalError(
 
57
                        if [ '--repo', '-r' ].count( opt ):
 
58
                                if not re.match( '^[-a-zA-z0-9.]+$', optarg ):
 
59
                                        raise the.FatalError(
61
60
                                                'invalid repository name: ' + optarg )
62
 
                                the.repo = optarg
 
61
                                self.repo = optarg
 
62
                        elif [ '--verbose', '-v' ].count( opt ):
 
63
                                the.verbose = True
63
64
                        elif opt == "--help":
64
65
                                self.print_help()
65
 
 
 
66
                
66
67
                # discard first argument (the command)
67
68
                args.pop( 0 )
68
69
 
69
70
                # URL argument
70
71
                self.url = args[ 0 ].strip() if len( args ) else None
71
72
 
72
 
                # check remaining arguments
 
73
                # remaining arguments
73
74
                if len( args ) > 1:
74
75
                        raise the.program.UsageError( 'too many arguments' )
75
76
 
76
77
 
77
78
        def run( self ):
 
79
                the.set_repo( self.repo )
78
80
 
79
 
                # set up repo and check it *doesn't* already exists
 
81
                # repo dir must not already exist
80
82
                the.repo.check_dir_exists( False )
81
83
 
82
84
                # ensure our top-level directory exists
83
 
                if not os.path.exists( the.full_dir ):
84
 
                        os.mkdir( the.full_dir )
 
85
                if not os.path.exists( the.expanded_dir ):
 
86
                        os.mkdir( the.expanded_dir )
85
87
 
86
 
                # checkout a remote repo, or create an empty local one?
87
88
                if self.url:
88
89
 
89
90
                        # expand url if it's a simple hostname
90
 
                        if re.search( '^[0-9a-zA-z.]+$', self.url ):
91
 
                                self.url = 'bzr+ssh://%s/%s/%s' % \
 
91
                        if re.match( '^[0-9a-zA-z.]+$', self.url ):
 
92
                                self.url = 'sftp://%s/%s/%s' % \
92
93
                                                   ( self.url, the.dir, the.repo.name )
93
94
 
94
95
                        # initialise deployment (with an empty repo)
95
 
                        deployment = Deployment()
 
96
                        deployment = Deployment( self.repo )
96
97
                        deployment.copy_in()
97
98
 
98
99
                        # perform bzr checkout
99
 
                        if the.verbose >= 1: print "checking out %s" % the.repo.dir
100
 
                        try:
101
 
                                the.repo.vcs.checkout( self.url )
102
 
                        except Exception as e:
 
100
                        print "checking out %s" % the.repo.dir
 
101
                        p = Popen( [ 'bzr', 'co', self.url, the.repo.name ],
 
102
                                           cwd = the.expanded_dir,
 
103
                                           stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
 
104
                        out = p.communicate()[ 0 ]
 
105
                        if p.returncode > 0:
103
106
 
104
 
                                # attempt to clean-up repo dir
 
107
                                # attempt to clean-up repo dir, and die
105
108
                                try:
106
 
                                        shutil.rmtree( the.repo.full_dir )
107
 
                                except OSError:
 
109
                                        shutil.rmtree( the.repo.expanded_dir )
 
110
                                except OSError as e:
108
111
                                        pass
109
 
 
110
 
                                raise e
111
 
 
112
 
                        message = ''
113
 
 
114
 
                        # check for deployment conclicts
115
 
                        conflicts = deployment.get_conflicts()
116
 
                        if conflicts:
117
 
                                message += 'deployment conflicts:\n  %s' % \
118
 
                                                   '\n  '.join( conflicts )
119
 
 
120
 
                        # stop if there are conflicts
121
 
                        if message:
122
 
                                raise the.program.FatalError(
123
 
                                        'there were conflicts...\n' + message )
 
112
                                raise the.program.FatalError( 'checkout failed', out )
124
113
 
125
114
                        # perform deployment
126
 
                        deployment.copy_out( self.quiet )
 
115
                        deployment.copy_out()
127
116
 
128
117
                else:
129
118
 
130
119
                        # perform bzr init
131
 
                        if the.verbose >= 1: print 'initialising %s' % the.repo.dir
132
 
                        try:
133
 
                                the.repo.vcs.init()
134
 
                        except Exception as e:
 
120
                        print 'creating %s' % the.repo.dir
 
121
                        p = Popen( [ 'bzr', 'init', the.repo.name ],
 
122
                                           cwd = the.expanded_dir,
 
123
                                           stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
 
124
                        out = p.communicate()[ 0 ]
 
125
                        if p.returncode > 0:
135
126
 
136
127
                                # attempt to clean-up repo dir, and die
137
128
                                try:
138
 
                                        shutil.rmtree( the.repo.full_dir )
139
 
                                except OSError:
 
129
                                        shutil.rmtree( the.repo.expanded_dir )
 
130
                                except OSError as e:
140
131
                                        pass
141
 
 
142
 
                                raise e
 
132
                                raise the.program.FatalError( 'init failed', out )