/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/walker/copy_out.py

  • Committer: Tim Marston
  • Date: 2016-02-13 14:18:32 UTC
  • Revision ID: tim@ed.am-20160213141832-o0odt4p3nuj97211
switched init command (and update command) to checking for conflicts prior to
deployment.copy_out(), and removed remaining references to CopyInConflict
(supposedly done in r24)

Show diffs side-by-side

added added

removed removed

Lines of Context:
lib/stdhome/walker/copy_out.py
19
19
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
20
20
 
21
21
 
22
 
import filecmp, os, shutil
23
 
from walker import Walker
 
22
import re
 
23
from copy_base import CopyBaseWalker
24
24
import stdhome.the as the
25
 
 
26
 
 
27
 
class CopyOutWalker( Walker ):
 
25
from stdhome.file_matcher import FileMatcher
 
26
 
 
27
 
 
28
class CopyOutWalker( CopyBaseWalker ):
28
29
        """The copy-out walker traverses the repo, copying its content to the home
29
 
        directory.  It is run *after* checking for conflicts that might occur during
30
 
        copy-out, so any conflicts that exist can be assumed to be unimportant and
31
 
        disposable.  In other words, this will happily overwrite stuff in the home
32
 
        directory, without regard to its content.
 
30
        directory.  During an update, it is run *after* checking for conflicts that
 
31
        might occur during copy-out, so any conflicts that exist can be assumed to
 
32
        be unimportant and disposable.  In other words, this will happily overwrite
 
33
        stuff in the home directory, without regard to its content.
33
34
 
34
35
        Walker source:       repo
35
36
        Walker destination:  home dir
37
38
                                                        that no longer exists in the repo
38
39
        """
39
40
 
40
 
        def __init__( self, updated_files = None ):
 
41
        def __init__( self, walk_files = None ):
 
42
                CopyBaseWalker.__init__( self )
41
43
                self.src_dir = the.repo.full_dir
42
44
                self.dst_dir = the.full_home_dir
43
 
                self.walk_list = updated_files if updated_files is not None else \
44
 
                                                 self.generate_walk_list( the.repo.full_dir )
45
 
 
46
 
 
47
 
        def process( self, rel_file, src_file, src_type, dst_file, dst_type ):
48
 
 
49
 
                # directory (in repo)
50
 
                if src_type == 'd':
51
 
 
52
 
                        # if entity doesn't exist in home dir, create directory (no need to
53
 
                        # recurse, since we're copying the whole directory)
54
 
                        if dst_type == '_':
55
 
                                if the.verbose > 1: print "  _<d " + rel_file
56
 
                                os.mkdir( dst_file )
57
 
                                shutil.copystat( src_file, dst_file )
58
 
                                return False
59
 
 
60
 
                        # if entity is a file or symlink in home dir, replace it with
61
 
                        # directory (no need to recurse, since we're copying the whole
62
 
                        # directory)
63
 
                        elif dst_type == 'f' or dst_type == 'l':
64
 
                                if the.verbose > 1: print "  %s<d %s" % ( dst_type, rel_file )
65
 
                                os.unlink( dst_file )
66
 
                                os.mkdir( dst_file )
67
 
                                shutil.copystat( src_file, dst_file )
68
 
                                return False
69
 
 
70
 
                        # if entity is a directory in home dir, copy permissions, as
71
 
                        # required (and recurse)
72
 
                        elif dst_type == 'd':
73
 
                                # TODO: should check permission and only do as necessary
74
 
                                if the.verbose > 1: print "  d<d " + rel_file
75
 
                                shutil.copystat( src_file, dst_file )
76
 
                                return True
77
 
 
78
 
                        else:
79
 
                                raise NotImplementedError()
80
 
 
81
 
                # file (in repo)
82
 
                if src_type == 'f':
83
 
 
84
 
                        # if entity doesn't exist in home dir, copy file
85
 
                        if dst_type == '_':
86
 
                                if the.verbose > 1: print "  _<f " + rel_file
87
 
                                shutil.copy( src_file, dst_file )
88
 
                                shutil.copystat( src_file, dst_file )
89
 
 
90
 
                        # if entity is a symlink in home dir, replace it with file
91
 
                        elif dst_type == 'l':
92
 
                                if the.verbose > 1: print "  l<f " + rel_file
93
 
                                os.unlink( dst_file )
94
 
                                shutil.copy( src_file, dst_file )
95
 
                                shutil.copystat( src_file, dst_file )
96
 
 
97
 
                        # if entity is a file in home dir, replace it only if it differs
98
 
                        elif dst_type == 'f':
99
 
                                if not filecmp.cmp( src_file, dst_file ):
100
 
                                        if the.verbose > 1: print "  f<f " + rel_file
101
 
                                        os.unlink( dst_file )
102
 
                                        shutil.copy( src_file, dst_file )
103
 
                                        shutil.copystat( src_file, dst_file )
104
 
                                else:
105
 
                                        if the.verbose > 1: print "  f=f " + rel_file
106
 
 
107
 
                        # if entity is a directory in home dir, replace it with file
108
 
                        elif dst_type == 'd':
109
 
                                if the.verbose > 1: print "  d<f " + rel_file
110
 
                                shutil.rmtree( dst_file )
111
 
                                shutil.copy( src_file, dst_file )
112
 
                                shutil.copystat( src_file, dst_file )
113
 
 
114
 
                        else:
115
 
                                raise NotImplementedError()
116
 
 
117
 
                # link (in repo)
118
 
                if src_type == 'l':
119
 
 
120
 
                        # if entity doesn't exist in home dir, copy symlink
121
 
                        if dst_type == '_':
122
 
                                if the.verbose > 1: print "  _<l " + rel_file
123
 
                                os.symlink( os.readlink( src_file ), dst_file )
124
 
 
125
 
                        # if entity is a symlink in home dir, replace it only if it differs
126
 
                        elif dst_type == 'l':
127
 
                                if os.readlink( src_file ) != os.readlink( dst_file ):
128
 
                                        if the.verbose > 1: print "  l<l " + rel_file
129
 
                                        os.unlink( dst_file )
130
 
                                        os.symlink( os.readlink( src_file ), dst_file )
131
 
                                else:
132
 
                                        if the.verbose > 1: print "  l=l " + rel_file
133
 
 
134
 
                        # if entity is a file in home dir, replace it with file
135
 
                        elif dst_type == 'f':
136
 
                                if the.verbose > 1: print "  f<l " + rel_file
137
 
                                os.unlink( dst_file )
138
 
                                os.symlink( os.readlink( src_file ), dst_file )
139
 
 
140
 
                        # if entity is a directory in home dir, replace it with file
141
 
                        elif dst_type == 'd':
142
 
                                if the.verbose > 1: print "  d<l " + rel_file
143
 
                                shutil.rmtree( dst_file )
144
 
                                os.symlink( os.readlink( src_file ), dst_file )
145
 
 
146
 
                        else:
147
 
                                raise NotImplementedError()
148
 
 
149
 
                # deleted file
150
 
                if src_type == '_':
151
 
 
152
 
                        # if entity doesn't exist in home dir, we're good
153
 
                        if dst_type == '_':
154
 
                                pass;
155
 
 
156
 
                        # if entity is a file or symlink in home dir, delete it
157
 
                        if dst_type == 'f' or dst_type == 'l':
158
 
                                if the.verbose > 1: print "  %s<_ %s" % ( dst_type, rel_file )
159
 
                                os.unlink( dst_file )
160
 
 
161
 
                        # if entity is a directory in home dir, delete it
162
 
                        elif dst_type == 'd':
163
 
                                if the.verbose > 1: print "  d<_ " + rel_file
164
 
                                shutil.rmtree( dst_file )
165
 
 
166
 
                        else:
167
 
                                raise NotImplementedError()
168
 
 
169
 
                # non-directories can not be recursed in to
170
 
                return False
 
45
                self.walk_list = walk_files if walk_files is not None else \
 
46
                                                 self.generate_walk_list()
 
47
                self.check_dst_symlinks = True
 
48
                self.check_dst_ignores = True
 
49
 
 
50
 
 
51
        def print_op( self, rel_file, operation ):
 
52
                operation = re.sub( r'(.)(.)(.)', r'\3\2\1', operation )
 
53
                operation = re.sub( r'\>', r'<', operation )
 
54
                print "  %s %s" % ( operation, rel_file )