/stdhome : revision 45

19

# along with this program. If not, see <http://www.gnu.org/licenses/>.

20

21

22

import filecmp, os, shutil

23

from walker import Walker

22

from copy_base import CopyBaseWalker

24

23

import stdhome.the as the

25

26

27

class CopyInWalker( Walker ):

24

from stdhome.file_matcher import FileMatcher

25

26

27

class CopyInWalker( CopyBaseWalker ):

28

"""The copy-in walker traverses the repo, copying-in matching files from the

29

home directory. It will overwrite certin changes (modified files, files

30

that have changed to symlinks), but barf at others.

29

home directory.

31

30

32

31

Walker source: home dir

33

32

Walker destination: repo

34

33

Walker traversing: repo

35

34

"""

36

35

37

def __init__( self ):

36

def __init__( self, walk_files = None ):

37

CopyBaseWalker.__init__( self )

38

self.src_dir = the.full_home_dir

39

self.dst_dir = the.repo.full_dir

40

self.walk_list = self.generate_walk_list( the.repo.full_dir )

41

42

self.changed = list()

43

44

45

def process( self, rel_file, src, dst ):

46

47

# directory (in repo)

48

if dst.type == 'd':

49

50

# if entity doesn't exist in home dir, delete directory in repo (and

51

# don't recurse, obviously!)

52

if src.type == '_':

53

if the.verbose > 1: print " _>d " + rel_file

54

shutil.rmtree( dst.file )

55

return False

56

57

# if entity is a directory in home dir, copy permissions to

58

# diurectory in repo, as necessary, and recurse

59

elif src.type == 'd':

60

# TODO: should check permissions and only do as necessary

61

if the.verbose > 1: print " d>d " + rel_file

62

shutil.copystat( src.file, dst.file )

63

return True

64

65

# TODO: if entity is a directory symlink in the home direcotry,

66

# silently accept it if it is explicitly matched by the accept list.

67

# In which case, we'll also need to add this rel_file to a

68

# not_deployed file list so that, after this walk, we can remove it

69

# from the deployment's deploy_list. If we don't, the directory in

70

# the repo will get copied-out.

71

# elif src.link_type == 'd' and self.accept_list.matches( rel_file ):

72

# if the.verbose > 1: print " d@d " + rel_file

73

# return True

74

75

# TODO: serious differences between ~/ and repo (e.g., files in one

76

# that are directories in the other) should be ignored (e.g., not

77

# copied-in). And the stuff that is ignored during copy-in should

78

# also be ignored during copy-out and must not be added to the

79

# deployment's deploy_files list. Since these ignored files and

80

# directories are transparent to the user, they must be explicitly

81

# permitted via an "ignore list" in ~/.stdhomerc. If these serious

82

# differences are not matched by the ignore list, an error should be

83

# shown (which will require a separate "check" walk of the repo, as

84

# is done in copy_out).

85

else:

86

self.changed.append( "%s (%s => %s)" % ( rel_file,

87

dst.get_type_name(), src.get_type_name() ) )

88

return False

89

90

# file (in repo)

91

elif dst.type == 'f':

92

93

# if entity doesn't exist in home dir, delete file in repo

94

if src.type == '_':

95

if the.verbose > 1: print " _>f " + rel_file

96

os.unlink( dst.file )

97

98

# if entity in home dir is a symlink, replace file in repo

99

elif src.type == 'l':

100

if the.verbose > 1: print " l>f " + rel_file

101

os.unlink( dst.file )

102

os.symlink( os.readlink( src.file ), dst.file )

103

104

# if entity in home dir is a file, replace file in repo only if it

105

# differs

106

elif src.type == 'f':

107

if not filecmp.cmp( src.file, dst.file ):

108

if the.verbose > 1: print " f>f " + rel_file

109

os.unlink( dst.file )

110

shutil.copy( src.file, dst.file )

111

shutil.copystat( src.file, dst.file )

112

else:

113

if the.verbose > 1: print " f=f " + rel_file

114

115

# TODO: serious differences between ~/ and repo (e.g., files in one

116

# that are directories in the other) should be ignored (e.g., not

117

# copied-in). And the stuff that is ignored during copy-in should

118

# also be ignored during copy-out and must not be added to the

119

# deployment's deploy_files list. Since these ignored files and

120

# directories are transparent to the user, they must be explicitly

121

# permitted via an "ignore list" in ~/.stdhomerc. If these serious

122

# differences are not matched by the ignore list, an error should be

123

# show (which will require a separate "check" walk of the repo, as

124

# is done in copy_out).

125

else:

126

self.changed.append( "%s (%s => %s)" % ( rel_file,

127

dst.get_type_name(), src.get_type_name() ) )

128

129

# symlink (in repo)

130

elif dst.type == 'l':

131

132

# if entity doesn't exist in home dir, delete symlink in repo

133

if src.type == '_':

134

if the.verbose > 1: print " _>l " + rel_file

135

os.unlink( dst.file )

136

137

# if entity in home dir is a symlink, replace symlink in repo only

138

# if it differs

139

elif src.type == 'l':

140

if os.readlink( src.file ) != os.readlink( dst.file ):

141

if the.verbose > 1: print " l>l " + rel_file

142

os.unlink( dst.file )

143

os.symlink( os.readlink( src.file ), dst.file )

144

else:

145

if the.verbose > 1: print " l=l " + rel_file

146

147

# if entity in home dir is a file, replace symlink in repo

148

elif src.type == 'f':

149

if the.verbose > 1: print " f>l " + rel_file

150

os.unlink( dst.file )

151

shutil.copy( src.file, dst.file )

152

shutil.copystat( src.file, dst.file )

153

154

# TODO: serious differences between ~/ and repo (e.g., files in one

155

# that are directories in the other) should be ignored (e.g., not

156

# copied-in). And the stuff that is ignored during copy-in should

157

# also be ignored during copy-out and must not be added to the

158

# deployment's deploy_files list. Since these ignored files and

159

# directories are transparent to the user, they must be explicitly

160

# permitted via an "ignore list" in ~/.stdhomerc. If these serious

161

# differences are not matched by the ignore list, an error should be

162

# show (which will require a separate "check" walk of the repo, as

163

# is done in copy_out).

164

else:

165

self.changed.append( "%s (%s => %s)" % ( rel_file,

166

dst.get_type_name(). src.get_type_name() ) )

167

168

# can not recurse on a non-directory

169

return False

40

self.walk_list = walk_files if walk_files is not None else \

41

self.generate_walk_list()

42

self.check_src_symlinks = True

43

44

45

def print_op( self, rel_file, operation ):

46

print " %s %s" % ( operation, rel_file )