def updateManifest(self, manifestPath, chromebasepath, register):
'''updateManifest replaces the % in the chrome registration entries
with the given chrome base path, and updates the given manifest file.
'''
lock = lockFile(manifestPath + '.lck')
try:
myregister = dict.fromkeys([
s.replace('%', chromebasepath) for s in iter(register.keys())
])
manifestExists = os.path.isfile(manifestPath)
mode = (manifestExists and 'r+b') or 'wb'
mf = open(manifestPath, mode)
if manifestExists:
# import previous content into hash, ignoring empty ones and comments
imf = re.compile('(#.*)?$')
for l in re.split('[\r\n]+', mf.read()):
if imf.match(l):
continue
myregister[l] = None
mf.seek(0)
for k in myregister.keys():
mf.write(k + os.linesep)
mf.close()
finally:
lock = None
def __init__(self, file, mode="r", compression=zipfile.ZIP_STORED,
lock = False):
if lock:
assert isinstance(file, basestring)
self.lockfile = lockFile(file + '.lck')
else:
self.lockfile = None
if mode == 'a' and lock:
# appending to a file which doesn't exist fails, but we can't check
# existence util we hold the lock
if (not os.path.isfile(file)) or os.path.getsize(file) == 0:
mode = 'w'
zipfile.ZipFile.__init__(self, file, mode, compression)
self._remove = []
self.end = self.fp.tell()
self.debug = 0
def addEntriesToListFile(listFile, entries):
"""Given a file |listFile| containing one entry per line,
add each entry in |entries| to the file, unless it is already
present."""
lock = lockFile(listFile + ".lck")
try:
if os.path.exists(listFile):
f = open(listFile)
existing = set(x.strip() for x in f.readlines())
f.close()
else:
existing = set()
f = open(listFile, 'a')
for e in entries:
if e not in existing:
f.write("{0}\n".format(e))
existing.add(e)
f.close()
finally:
lock = None
def addEntriesToListFile(listFile, entries):
"""Given a file |listFile| containing one entry per line,
add each entry in |entries| to the file, unless it is already
present."""
lock = lockFile(listFile + ".lck")
try:
if os.path.exists(listFile):
f = open(listFile)
existing = set(x.strip() for x in f.readlines())
f.close()
else:
existing = set()
f = open(listFile, "a")
for e in entries:
if e not in existing:
f.write("{0}\n".format(e))
existing.add(e)
f.close()
finally:
lock = None
def __init__(self,
file,
mode="r",
compression=zipfile.ZIP_STORED,
lock=False):
if lock:
assert isinstance(file, basestring)
self.lockfile = lockFile(file + '.lck')
else:
self.lockfile = None
if mode == 'a' and lock:
# appending to a file which doesn't exist fails, but we can't check
# existence util we hold the lock
if (not os.path.isfile(file)) or os.path.getsize(file) == 0:
mode = 'w'
zipfile.ZipFile.__init__(self, file, mode, compression)
self._remove = []
self.end = self.fp.tell()
self.debug = 0
def updateManifest(self, manifestPath, chromebasepath, register):
'''updateManifest replaces the % in the chrome registration entries
with the given chrome base path, and updates the given manifest file.
'''
lock = lockFile(manifestPath + '.lck')
try:
myregister = dict.fromkeys(map(lambda s: s.replace('%', chromebasepath),
register.iterkeys()))
manifestExists = os.path.isfile(manifestPath)
mode = (manifestExists and 'r+b') or 'wb'
mf = open(manifestPath, mode)
if manifestExists:
# import previous content into hash, ignoring empty ones and comments
imf = re.compile('(#.*)?$')
for l in re.split('[\r\n]+', mf.read()):
if imf.match(l):
continue
myregister[l] = None
mf.seek(0)
for k in myregister.iterkeys():
mf.write(k + os.linesep)
mf.close()
finally:
lock = None
