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"""
Modeled after unix command line.
>>> z = ZipWrap("foo.zip")
Can touch files (preceeding / is optional root is either "" or "/")
>>> z.touch("/bar", "hello world\\nstuff")
Can ``cat`` files
>>> z.cat("bar")
'hello world\\nstuff'
Can ``mkdir``
>>> z.mkdir("foo/bar/baz/biz")
Can ``cat`` root directory
>>> z.cat("/")
['foo', 'bar']
>>> z.touch("foo/bar/baz/junk", "stuff")
>>> z.cat("foo/bar/baz")
['junk', 'biz']
>>> z.cat("foo/bar/baz/junk")
'stuff'
>>> z.touch("empty")
>>> z.cat("empty")
''
Can ``rm``
>>> z.rm("bar")
>>> z.cat("bar")
Can ``save``
>>> z.zipit("test/foo.zip")
Can open existing ZIP files
>>> z2 = ZipWrap("test/foo.zip")
>>> z2.cat("foo/bar/baz/junk")
'stuff'
>>> os.remove("test/foo.zip")
Can open existing directories
>>> z3 = ZipWrap("test")
>>> z3.cat("/") # root dir
['testzipwrap.py']
>>> z3.cat("/") # root dir
Note that implementation actually uses a temp directory and puts
everything there. It's cleaned up upon garbage collection.
"""
import zipfile
import tempfile
import os
import shutil
__version__ = "0.1"
__author__ = "matt harrison"
__email__ = "matthewharrison@gmail.com"
__license__ = "psf"
class ZipWrap(object):
def __init__(self, path):
"""
Path can be an existing filename, or just a filename.
"""
self.path = path
self.src_dir = tempfile.mkdtemp()
self.cleanup = True
if os.path.exists(self.path):
self._read_existing()
def __del__(self):
if self.cleanup:
shutil.rmtree(self.src_dir)
def load_zipfile(self, path):
"""
import contents of a zipfile
"""
#try to add as zipfile
zin = zipfile.ZipFile(path)
for zinfo in zin.infolist():
name = zinfo.filename
if name.endswith("/"):
self.mkdir(name)
else:
content = zin.read(name)
self.touch(name, content)
def load_dir(self, path):
"""
import contents of a directory
"""
def visit_path(arg, dirname, names):
for name in names:
fpath = os.path.join(dirname, name)
new_path = fpath[len(path):]
if os.path.isfile(fpath):
content = open(fpath).read()
self.touch(new_path, content)
else:
self.mkdir(new_path)
os.path.walk(path, visit_path, None)
def _read_existing(self):
if os.path.isfile(self.path):
#try to add as zipfile
self.load_zipfile(self.path)
elif os.path.isdir(self.path):
self.load_dir(self.path)
def cat(self, path):
path = self._clean_path(path)
path = os.path.join(self.src_dir, path)
if os.path.exists(path):
if os.path.isfile(path):
return open(path).read()
elif os.path.isdir(path):
return os.listdir(path)
else:
raise IOError("no such file or dir %s" % path)
def touch(self, path, contents=None):
# make parent dirs first
self.mkdir(os.path.dirname(path))
path = self._clean_path(path)
path = os.path.join(self.src_dir, path)
fout = open(path, 'w')
if contents:
fout.write(contents)
def _clean_path(self, path):
"""os.path.join acts wierd if second item starts with /"""
if path.startswith("/"):
path = path[1:]
return path
def mkdir(self, path):
path = self._clean_path(path)
full_path = os.path.join(self.src_dir, path)
if not os.path.exists(full_path):
os.makedirs(full_path)
def rm(self, path):
path = self._clean_path(path)
path = os.path.join(self.src_dir, path)
if os.path.exists(path):
if os.path.isfile(path):
os.remove(path)
elif os.path.isdir(path):
shutil.rmtree(path)
def _rel_path(self, path, basepath=None):
"""
trim off basepath
"""
basepath = basepath or self.src_dir
return path[len(basepath)+1:]
def unzip(self, directory):
"""
Write contents of zipfile to directory
"""
if not os.path.exists(directory):
os.makedirs(directory)
shutil.copytree(self.src_dir, directory)
def zipit(self, save_as=None):
name = save_as or self.path
zout = zipfile.ZipFile(name, 'w')
dirs_n_files = dict(dirs=[], files=[])
def visit_path(dnf, dirname, names):
for name in names:
path = os.path.join(dirname, name)
if os.path.isfile(path):
dnf["files"].append(path)
else:
dnf["dirs"].append(path)
os.path.walk(self.src_dir, visit_path, dirs_n_files)
# add dirs first
# Note has issues with empty directories
for d in dirs_n_files["dirs"]:
new_path = d[len(self.src_dir):]
if not new_path.endswith("/"):
new_path = new_path+"/"
zinfo = zipfile.ZipInfo(new_path)
#zinfo.external_attr = 48
zinfo.external_attr = 16
##zout.writestr(zinfo, "")
for f in dirs_n_files["files"]:
new_path = f[len(self.src_dir):]
zout.write(f, new_path)
def _test():
import doctest
doctest.testmod()
if __name__ == "__main__":
_test()
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