/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:
lib/stdhome/command_init.py
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:
29
28
 
30
29
 
31
30
        def __init__( self ):
32
 
                self.quiet = False
33
 
                self.vcs = the.config.default_vcs
 
31
                self.repo = None
34
32
 
35
33
 
36
34
        def print_help( self ):
46
44
                print "hostname, it is internally expanded to scp://HOSTNAME/~/.stdhome/REPO)."
47
45
                print
48
46
                print "Options:"
49
 
                print "      --quiet      do not report changes to the home directory"
50
47
                print "  -r, --repo=REPO  select the repo to check-out or create (defaults to 'home')"
51
 
                print "  -v, --verbose    display information about what is being done"
52
 
                print "      --vcs=VCS    select the version control system"
53
48
                print "      --help       display help and exit"
54
49
                exit( 0 )
55
50
 
57
52
        def parse_command_line( self ):
58
53
                opts, args = getopt.gnu_getopt(
59
54
                        sys.argv[ 1: ], "r:v",
60
 
                        [ "quiet", "repo=", "vcs=", "verbose", "help" ] )
 
55
                        [ "repo=", "verbose", "help" ] )
61
56
                for opt, optarg in opts:
62
 
                        if opt == "--quiet":
63
 
                                self.quiet = True
64
 
                        elif opt in [ '--repo', '-r' ]:
65
 
                                if not re.search( '^[-a-zA-z0-9.]+$', optarg ):
66
 
                                        raise the.program.FatalError(
 
57
                        if [ '--repo', '-r' ].count( opt ):
 
58
                                if not re.match( '^[-a-zA-z0-9.]+$', optarg ):
 
59
                                        raise the.FatalError(
67
60
                                                'invalid repository name: ' + optarg )
68
 
                                the.repo = optarg
69
 
                        elif opt == "--vcs":
70
 
                                self.vcs = optarg
71
 
                        elif opt in [ '--verbose', '-v' ]:
72
 
                                the.verbose += 1
 
61
                                self.repo = optarg
 
62
                        elif [ '--verbose', '-v' ].count( opt ):
 
63
                                the.verbose = True
73
64
                        elif opt == "--help":
74
65
                                self.print_help()
75
 
 
 
66
                
76
67
                # discard first argument (the command)
77
68
                args.pop( 0 )
78
69
 
79
70
                # URL argument
80
71
                self.url = args[ 0 ].strip() if len( args ) else None
81
72
 
82
 
                # check remaining arguments
 
73
                # remaining arguments
83
74
                if len( args ) > 1:
84
75
                        raise the.program.UsageError( 'too many arguments' )
85
76
 
86
77
 
87
78
        def run( self ):
 
79
                the.set_repo( self.repo )
88
80
 
89
 
                # set up repo and check it *doesn't* already exists
 
81
                # repo dir must not already exist
90
82
                the.repo.check_dir_exists( False )
91
 
                the.repo.set_vcs( self.vcs )
92
83
 
93
84
                # ensure our top-level directory exists
94
 
                if not os.path.exists( the.full_dir ):
95
 
                        os.mkdir( the.full_dir )
 
85
                if not os.path.exists( the.expanded_dir ):
 
86
                        os.mkdir( the.expanded_dir )
96
87
 
97
 
                # checkout a remote repo, or create an empty local one?
98
88
                if self.url:
99
89
 
100
90
                        # expand url if it's a simple hostname
101
 
                        if re.search( '^[0-9a-zA-z.]+$', self.url ):
102
 
                                self.url = the.repo.vcs.expand_repo_url( self.url )
 
91
                        if re.match( '^[0-9a-zA-z.]+$', self.url ):
 
92
                                self.url = 'sftp://%s/%s/%s' % \
 
93
                                                   ( self.url, the.dir, the.repo.name )
103
94
 
104
95
                        # initialise deployment (with an empty repo)
105
 
                        deployment = Deployment()
 
96
                        deployment = Deployment( self.repo )
106
97
                        deployment.copy_in()
107
98
 
108
99
                        # perform bzr checkout
109
 
                        if the.verbose >= 1: print "checking out %s" % the.repo.dir
110
 
                        try:
111
 
                                the.repo.vcs.checkout( self.url )
112
 
                        except Exception:
113
 
 
114
 
                                # attempt to clean-up repo dir
115
 
                                if os.path.exists( the.repo.full_dir ):
116
 
                                        try:
117
 
                                                shutil.rmtree( the.repo.full_dir )
118
 
                                        except OSError:
119
 
                                                pass
120
 
 
121
 
                                raise
122
 
 
123
 
                        message = ''
124
 
 
125
 
                        # check for deployment conclicts
126
 
                        conflicts = deployment.get_conflicts()
127
 
                        if conflicts:
128
 
                                message += 'deployment conflicts:\n  %s' % \
129
 
                                                   '\n  '.join( conflicts )
130
 
 
131
 
                        # stop if there are conflicts
132
 
                        if message:
133
 
                                raise the.program.FatalError(
134
 
                                        'there were conflicts...\n' + message )
 
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:
 
106
 
 
107
                                # attempt to clean-up repo dir, and die
 
108
                                try:
 
109
                                        shutil.rmtree( the.repo.expanded_dir )
 
110
                                except OSError as e:
 
111
                                        pass
 
112
                                raise the.program.FatalError( 'checkout failed', out )
135
113
 
136
114
                        # perform deployment
137
 
                        deployment.copy_out( self.quiet )
 
115
                        deployment.copy_out()
138
116
 
139
117
                else:
140
118
 
141
119
                        # perform bzr init
142
 
                        if the.verbose >= 1: print 'initialising %s' % the.repo.dir
143
 
                        try:
144
 
                                the.repo.vcs.init()
145
 
                        except Exception:
 
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:
146
126
 
147
127
                                # attempt to clean-up repo dir, and die
148
 
                                if os.path.exists( the.repo.full_dir ):
149
 
                                        try:
150
 
                                                shutil.rmtree( the.repo.full_dir )
151
 
                                        except OSError:
152
 
                                                pass
153
 
 
154
 
                                raise
 
128
                                try:
 
129
                                        shutil.rmtree( the.repo.expanded_dir )
 
130
                                except OSError as e:
 
131
                                        pass
 
132
                                raise the.program.FatalError( 'init failed', out )