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Classes | Functions
ZipPythonDir Namespace Reference

## Classes
class | ZipdirError

## Functions
def | _zipChanges (directory, infolist)
def | checkEncoding (fileObj)
def | zipdir (directory, no_pyc=False)
def | main (argv=None)

## Function Documentation

def ZipPythonDir._zipChanges | ( |  | directory,
|  |  | infolist
| ) |  |
| private

Definition at line 31 of file ZipPythonDir.py.

31 def _zipChanges(directory, infolist):
32 # gets the dates of the files in the zip archive
33 infos = {}
34 for i in infolist:
35 fn = i.filename
36 if fn.endswith(".pyc"):
37 fn = fn[:-1]
38 infos[fn] = i.date_time
39
40 # gets the changes
41 added = []
42 modified = []
43 untouched = []
44 removed = []
45 all_files = set()
46
47 log = logging.getLogger("zipdir")
48 dirlen = len(directory) + 1
49 for root, dirs, files in os.walk(directory):
50 if "lib-dynload" in dirs:
51 # exclude the directory containing binary modules
52 dirs.remove("lib-dynload")
53 arcdir = root[dirlen:]
54 for f in files:
55 ext = os.path.splitext(f)[1]
56 if ext == ".py": # extensions that can enter the zip file
57 filename = os.path.join(arcdir, f)
58 all_files.add(filename)
59 if filename not in infos:
60 action = "A"
61 added.append(filename)
62 else:
63 filetime = time.localtime(
64 os.stat(os.path.join(directory, filename))[stat.ST_MTIME])[:6]
65 if filetime > infos[filename]:
66 action = "M"
67 modified.append(filename)
68 else:
69 action = "U"
70 untouched.append(filename)
71 if action in ['U']:
72 log.debug(" %s -> %s", action, filename)
73 else:
74 log.info(" %s -> %s", action, filename)
75 # cases that can be ignored
76 elif (ext not in [".pyc", ".pyo", ".stamp", ".cmtref", ".confdb"]
77 and not f.startswith('.__afs')):
78 raise ZipdirError(
79 "Cannot add '%s' to the zip file, only '.py' are allowed." % os.path.join(arcdir, f))
80 # check for removed files
81 for filename in infos:
82 if filename not in all_files:
83 removed.append(filename)
84 log.info(" %s -> %s", "R", filename)
85 return (added, modified, untouched, removed)
86
87
ZipPythonDir.ZipdirError
Definition: ZipPythonDir.py:19
ZipPythonDir._zipChanges
def _zipChanges(directory, infolist)
Definition: ZipPythonDir.py:31

def ZipPythonDir.checkEncoding | ( |  | fileObj | ) |

    Check that a file honors the declared encoding (default ASCII for Python 2
    and UTF-8 for Python 3).

    Raises a UnicodeDecodeError in case of decoding problems and LookupError if
    the specified codec does not exists.

    See http://www.python.org/dev/peps/pep-0263/

Definition at line 88 of file ZipPythonDir.py.

88 def checkEncoding(fileObj):
89 '''
90 Check that a file honors the declared encoding (default ASCII for Python 2
91 and UTF-8 for Python 3).
92
93 Raises a UnicodeDecodeError in case of decoding problems and LookupError if
94 the specified codec does not exists.
95
96 See http://www.python.org/dev/peps/pep-0263/
97 '''
98 from itertools import islice
99
100 # default encoding
101 if sys.version_info[0] <= 2:
102 enc = 'ascii'
103 else:
104 enc = 'utf-8'
105
106 # find the encoding of the file, if specified (in the first two lines)
107 enc_exp = re.compile(r"coding[:=]\s*([-\w.]+)")
108 for l in islice(fileObj, 2):
109 m = enc_exp.search(l)
110 if m:
111 enc = m.group(1)
112 break
113
114 if hasattr(fileObj, 'name'):
115 logging.getLogger('checkEncoding').debug('checking encoding %s on %s',
116 enc, fileObj.name)
117 else:
118 logging.getLogger('checkEncoding').debug('checking encoding %s on file object',
119 enc)
120 # try to read the file with the declared encoding
121 fileObj.seek(0)
122 codecs.getreader(enc)(fileObj).read()
123
124
125 # Make a zip file out of a directory containing python modules
ZipPythonDir.checkEncoding
def checkEncoding(fileObj)
Definition: ZipPythonDir.py:88
hivetimeline.read
def read(f, regex='.*', skipevents=0)
Definition: hivetimeline.py:22

def ZipPythonDir.main | ( |  | argv = `None` | ) |

Definition at line 188 of file ZipPythonDir.py.

188 def main(argv=None):
189 from optparse import OptionParser
190 parser = OptionParser(usage="%prog [options] directory1 [directory2 ...]")
191 parser.add_option("--no-pyc", action="store_true",
192 help="copy the .py files without pre-compiling them")
193 parser.add_option("--quiet", action="store_true",
194 help="do not print info messages")
195 parser.add_option("--debug", action="store_true",
196 help="print debug messages (has priority over --quiet)")
197
198 if argv is None:
199 argv = sys.argv
200 opts, args = parser.parse_args(argv[1:])
201
202 if not args:
203 parser.error("Specify at least one directory to zip")
204
205 # Initialize the logging module
206 level = logging.INFO
207 if opts.quiet:
208 level = logging.WARNING
209 if opts.debug:
210 level = logging.DEBUG
211 logging.basicConfig(level=level)
212
213 # zip all the directories passed as arguments
214 for d in args:
215 zipdir(d, opts.no_pyc)
216
217
ZipPythonDir.main
def main(argv=None)
Definition: ZipPythonDir.py:188
ZipPythonDir.zipdir
def zipdir(directory, no_pyc=False)
Definition: ZipPythonDir.py:126

def ZipPythonDir.zipdir | ( |  | directory,
|  |  | no_pyc = `False`
| ) |  |

Definition at line 126 of file ZipPythonDir.py.

126 def zipdir(directory, no_pyc=False):
127 filename = os.path.realpath(directory + ".zip")
128 log = logging.getLogger("zipdir")
129 if not os.path.isdir(directory):
130 log.warning('directory %s missing, creating empty .zip file', directory)
131 open(filename, "ab").close()
132 return
133 msg = "Zipping directory '%s'"
134 if no_pyc:
135 msg += " (without pre-compilation)"
136 log.info(msg, directory)
137
138 # Open the file in read an update mode
139 if os.path.exists(filename):
140 zipFile = open(filename, "r+b")
141 else:
142 # If the file does not exist, we need to create it.
143 # "append mode" ensures that, in case of two processes trying to
144 # create the file, they do not truncate each other file
145 zipFile = open(filename, "ab")
146
147 try:
148 if zipfile.is_zipfile(filename):
149 infolist = zipfile.ZipFile(filename).infolist()
150 else:
151 infolist = []
152 (added, modified, untouched, removed) = _zipChanges(directory, infolist)
153 if added or modified or removed:
154 tempBuf = StringIO()
155 z = zipfile.PyZipFile(tempBuf, "w", zipfile.ZIP_DEFLATED)
156 for f in added + modified + untouched:
157 src = os.path.join(directory, f)
158 checkEncoding(open(src, 'rb'))
159 if no_pyc:
160 log.debug("adding '%s'", f)
161 z.write(src, f)
162 else:
163 # Remove the .pyc file to always force a re-compilation
164 if os.path.exists(src + 'c'):
165 log.debug("removing old .pyc for '%s'", f)
166 os.remove(src + 'c')
167 log.debug("adding '%s'", f)
168 z.writepy(src, os.path.dirname(f))
169 z.close()
170 zipFile.seek(0)
171 zipFile.write(tempBuf.getvalue())
172 zipFile.truncate()
173 log.info("File '%s' closed", filename)
174 else:
175 log.info("Nothing to do on '%s'", filename)
176 except UnicodeDecodeError, x:
177 log.error("Wrong encoding in file '%s':", src)
178 log.error(" %s", x)
179 log.error("Probably you forgot the line '# -*- coding: utf-8 -*-'")
180 sys.exit(1)
181 finally:
182 zipFile.close()
183
184 # Main function of the script.
185 # Parse arguments and call zipdir() for each directory passed as argument
186
187
ZipPythonDir.checkEncoding
def checkEncoding(fileObj)
Definition: ZipPythonDir.py:88
ZipPythonDir._zipChanges
def _zipChanges(directory, infolist)
Definition: ZipPythonDir.py:31
ZipPythonDir.zipdir
def zipdir(directory, no_pyc=False)
Definition: ZipPythonDir.py:126