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# copy_in.py
#
# Copyright (C) 2013 to 2014 Tim Marston <tim@edm.am>
#
# This file is part of stdhome (hereafter referred to as "this program").
# See http://ed.am/dev/stdhome for more information.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import filecmp, os, shutil
from walker import Walker
import stdhome.the as the
class CopyInWalker( Walker ):
"""The copy-in walker traverses the repo, copying-in matching files from the
home directory. It will overwrite certin changes (modified files, files
that have changed to symlinks), but barf at others.
Walker source: home dir
Walker destination: repo
Walker traversing: repo
"""
def __init__( self ):
self.src_dir = the.full_home_dir
self.dst_dir = the.repo.full_dir
self.walk_list = self.generate_walk_list( the.repo.full_dir )
self.changed = list()
def process( self, rel_file, src_file, src_type, dst_file, dst_type ):
# directory (in repo)
if dst_type == 'd':
# if entity doesn't exist in home dir, delete directory in repo (and
# don't recurse, obviously!)
if src_type == '_':
if the.verbose > 1: print " _>d " + rel_file
shutil.rmtree( dst_file )
return False
# if entity is a directory in home dir, copy permissions to
# diurectory in repo, as necessary, and recurse
elif src_type == 'd':
# TODO: should check permissions and only do as necessary
if the.verbose > 1: print " d>d " + rel_file
shutil.copystat( src_file, dst_file )
return True
# TODO: serious differences in between ~/ and repo (e.g., files in
# one that are directories in the other) should be ignored (e.g.,
# not copied-in). And the stuff that is ignored during copy-in
# should also be ignored during copy-out and must not be added to
# the deploy_files list. Since these ignored files/directories are
# transparent to the user, they should have to explicitly permit
# them via an ignore file (e.g., ~/.stdhome/.ignore, akin to bzr's
# .bzrignore file). If these serious differences are not matched by
# the ignore file, an error should show (which will requie a
# separate "check" walk of the repo, as is done in copy_out).
else:
self.changed.append( "%s (now %s)" % (
rel_file, self.name_of_type( src_type ) ) )
return False
# file (in repo)
elif dst_type == 'f':
# if entity doesn't exist in home dir, delete file in repo
if src_type == '_':
if the.verbose > 1: print " _>f " + rel_file
os.unlink( dst_file )
# if entity in home dir is a symlink, replace file in repo
elif src_type == 'l':
if the.verbose > 1: print " l>f " + rel_file
os.unlink( dst_file )
os.symlink( os.readlink( src_file ), dst_file )
# if entity in home dir is a file, replace file in repo only if it
# differs
elif src_type == 'f':
if not filecmp.cmp( src_file, dst_file ):
if the.verbose > 1: print " f>f " + rel_file
os.unlink( dst_file )
shutil.copy( src_file, dst_file )
shutil.copystat( src_file, dst_file )
else:
if the.verbose > 1: print " f=f " + rel_file
# TODO: serious differences in between ~/ and repo (e.g., files in
# one that are directories in the other) should be ignored (e.g.,
# not copied-in). And the stuff that is ignored during copy-in
# should also be ignored during copy-out and must not be added to
# the deploy_files list. Since these ignored files/directories are
# transparent to the user, they should have to explicitly permit
# them via an ignore file (e.g., ~/.stdhome/.ignore, akin to bzr's
# .bzrignore file). If these serious differences are not matched by
# the ignore file, an error should show (which will requie a
# separate "check" walk of the repo, as is done in copy_out).
else:
self.changed.append( "%s (now %s)" % (
rel_file, self.name_of_type( src_type ) ) )
# symlink (in repo)
elif dst_type == 'l':
# if entity doesn't exist in home dir, delete symlink in repo
if src_type == '_':
if the.verbose > 1: print " _>l " + rel_file
os.unlink( dst_file )
# if entity in home dir is a symlink, replace symlink in repo only
# if it differs
elif src_type == 'l':
if os.readlink( src_file ) != os.readlink( dst_file ):
if the.verbose > 1: print " l>l " + rel_file
os.unlink( dst_file )
os.symlink( os.readlink( src_file ), dst_file )
else:
if the.verbose > 1: print " l=l " + rel_file
# if entity in home dir is a file, replace symlink in repo
elif src_type == 'f':
if the.verbose > 1: print " f>l " + rel_file
os.unlink( dst_file )
shutil.copy( src_file, dst_file )
shutil.copystat( src_file, dst_file )
# TODO: serious differences in between ~/ and repo (e.g., files in
# one that are directories in the other) should be ignored (e.g.,
# not copied-in). And the stuff that is ignored during copy-in
# should also be ignored during copy-out and must not be added to
# the deploy_files list. Since these ignored files/directories are
# transparent to the user, they should have to explicitly permit
# them via an ignore file (e.g., ~/.stdhome/.ignore, akin to bzr's
# .bzrignore file). If these serious differences are not matched by
# the ignore file, an error should show (which will requie a
# separate "check" walk of the repo, as is done in copy_out).
else:
self.changed.append( "%s (now %s)" % (
rel_file, self.name_of_type( src_type ) ) )
# can not recurse on a non-directory
return False
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