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Teach _LinkFile._Link to handle globs.

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This allows a project to use globs in the linkfile src attribute. When
a glob is used in the src the dest field must be a directory. Then
_LinkFile._Link(self) calls will create symbolic links in the dest
directory to all of the entries in the src as defined by the glob
specification.

Below all of the entries in master-configs/ will have symbolic links
in <root dir>/configs directory:

  <project name="helloworld.git" path="apps/helloworld">
      <linkfile src="master-configs/*" dest="configs"/>
  </project>

Change-Id: Idfed8fa47c83d2ca6e2b8e867731b8e2f9e2eb47
This commit is contained in:
Wink Saville 2015-06-03 08:05:17 -07:00
parent 472ce9f5fa
commit 4c426ef1d4
1 changed files with 44 additions and 11 deletions
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55
project.py
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@ -16,6 +16,7 @@ from __future__ import print_function
import contextlib
import errno
import filecmp
import glob
import os
import random
import re
@ -233,28 +234,60 @@ class _CopyFile(object):
_error('Cannot copy file %s to %s', src, dest)
class _LinkFile(object):
def __init__(self, src, dest, relsrc, absdest):
def __init__(self, git_worktree, src, dest, relsrc, absdest):
self.git_worktree = git_worktree
self.src = src
self.dest = dest
self.src_rel_to_dest = relsrc
self.abs_dest = absdest
def _Link(self):
src = self.src_rel_to_dest
dest = self.abs_dest
def __linkIt(self, relSrc, absDest):
# link file if it does not exist or is out of date
if not os.path.islink(dest) or os.readlink(dest) != src:
if not os.path.islink(absDest) or (os.readlink(absDest) != relSrc):
try:
# remove existing file first, since it might be read-only
if os.path.exists(dest):
os.remove(dest)
if os.path.exists(absDest):
os.remove(absDest)
else:
dest_dir = os.path.dirname(dest)
dest_dir = os.path.dirname(absDest)
if not os.path.isdir(dest_dir):
os.makedirs(dest_dir)
os.symlink(src, dest)
os.symlink(relSrc, absDest)
except IOError:
_error('Cannot link file %s to %s', src, dest)
_error('Cannot link file %s to %s', relSrc, absDest)
def _Link(self):
"""Link the self.rel_src_to_dest and self.abs_dest. Handles wild cards
on the src linking all of the files in the source in to the destination
directory.
"""
# We use the absSrc to handle the situation where the current directory
# is not the root of the repo
absSrc = os.path.join(self.git_worktree, self.src)
if os.path.exists(absSrc):
# Entity exists so just a simple one to one link operation
self.__linkIt(self.src_rel_to_dest, self.abs_dest)
else:
# Entity doesn't exist assume there is a wild card
absDestDir = self.abs_dest
if os.path.exists(absDestDir) and not os.path.isdir(absDestDir):
_error('Link error: src with wildcard, %s must be a directory',
absDestDir)
else:
absSrcFiles = glob.glob(absSrc)
for absSrcFile in absSrcFiles:
# Create a releative path from source dir to destination dir
absSrcDir = os.path.dirname(absSrcFile)
relSrcDir = os.path.relpath(absSrcDir, absDestDir)
# Get the source file name
srcFile = os.path.basename(absSrcFile)
# Now form the final full paths to srcFile. They will be
# absolute for the desintaiton and relative for the srouce.
absDest = os.path.join(absDestDir, srcFile)
relSrc = os.path.join(relSrcDir, srcFile)
self.__linkIt(relSrc, absDest)
class RemoteSpec(object):
def __init__(self,
@ -1362,7 +1395,7 @@ class Project(object):
# make src relative path to dest
absdestdir = os.path.dirname(absdest)
relsrc = os.path.relpath(os.path.join(self.worktree, src), absdestdir)
self.linkfiles.append(_LinkFile(src, dest, relsrc, absdest))
self.linkfiles.append(_LinkFile(self.worktree, src, dest, relsrc, absdest))
def AddAnnotation(self, name, value, keep):
self.annotations.append(_Annotation(name, value, keep))