378 lines
13 KiB
Python
378 lines
13 KiB
Python
"""Class representing the list of files in a distribution.
|
|
|
|
The Manifest class can be used to:
|
|
|
|
- read or write a MANIFEST file
|
|
- read a template file and find out the file list
|
|
"""
|
|
# XXX todo: document + add tests
|
|
import re
|
|
import os
|
|
import fnmatch
|
|
|
|
from packaging import logger
|
|
from packaging.util import write_file, convert_path
|
|
from packaging.errors import (PackagingTemplateError,
|
|
PackagingInternalError)
|
|
|
|
__all__ = ['Manifest']
|
|
|
|
# a \ followed by some spaces + EOL
|
|
_COLLAPSE_PATTERN = re.compile('\\\w*\n', re.M)
|
|
_COMMENTED_LINE = re.compile('#.*?(?=\n)|\n(?=$)', re.M | re.S)
|
|
|
|
|
|
class Manifest(object):
|
|
"""A list of files built by on exploring the filesystem and filtered by
|
|
applying various patterns to what we find there.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self.allfiles = None
|
|
self.files = []
|
|
|
|
#
|
|
# Public API
|
|
#
|
|
|
|
def findall(self, dir=os.curdir):
|
|
self.allfiles = _findall(dir)
|
|
|
|
def append(self, item):
|
|
self.files.append(item)
|
|
|
|
def extend(self, items):
|
|
self.files.extend(items)
|
|
|
|
def sort(self):
|
|
# Not a strict lexical sort!
|
|
self.files = [os.path.join(*path_tuple) for path_tuple in
|
|
sorted(os.path.split(path) for path in self.files)]
|
|
|
|
def clear(self):
|
|
"""Clear all collected files."""
|
|
self.files = []
|
|
if self.allfiles is not None:
|
|
self.allfiles = []
|
|
|
|
def remove_duplicates(self):
|
|
# Assumes list has been sorted!
|
|
for i in range(len(self.files) - 1, 0, -1):
|
|
if self.files[i] == self.files[i - 1]:
|
|
del self.files[i]
|
|
|
|
def read_template(self, path_or_file):
|
|
"""Read and parse a manifest template file.
|
|
'path' can be a path or a file-like object.
|
|
|
|
Updates the list accordingly.
|
|
"""
|
|
if isinstance(path_or_file, str):
|
|
f = open(path_or_file)
|
|
else:
|
|
f = path_or_file
|
|
|
|
try:
|
|
content = f.read()
|
|
# first, let's unwrap collapsed lines
|
|
content = _COLLAPSE_PATTERN.sub('', content)
|
|
# next, let's remove commented lines and empty lines
|
|
content = _COMMENTED_LINE.sub('', content)
|
|
|
|
# now we have our cleaned up lines
|
|
lines = [line.strip() for line in content.split('\n')]
|
|
finally:
|
|
f.close()
|
|
|
|
for line in lines:
|
|
if line == '':
|
|
continue
|
|
try:
|
|
self._process_template_line(line)
|
|
except PackagingTemplateError as msg:
|
|
logger.warning("%s, %s", path_or_file, msg)
|
|
|
|
def write(self, path):
|
|
"""Write the file list in 'self.filelist' (presumably as filled in
|
|
by 'add_defaults()' and 'read_template()') to the manifest file
|
|
named by 'self.manifest'.
|
|
"""
|
|
if os.path.isfile(path):
|
|
with open(path) as fp:
|
|
first_line = fp.readline()
|
|
|
|
if first_line != '# file GENERATED by packaging, do NOT edit\n':
|
|
logger.info("not writing to manually maintained "
|
|
"manifest file %r", path)
|
|
return
|
|
|
|
self.sort()
|
|
self.remove_duplicates()
|
|
content = self.files[:]
|
|
content.insert(0, '# file GENERATED by packaging, do NOT edit')
|
|
logger.info("writing manifest file %r", path)
|
|
write_file(path, content)
|
|
|
|
def read(self, path):
|
|
"""Read the manifest file (named by 'self.manifest') and use it to
|
|
fill in 'self.filelist', the list of files to include in the source
|
|
distribution.
|
|
"""
|
|
logger.info("reading manifest file %r", path)
|
|
with open(path) as manifest:
|
|
for line in manifest.readlines():
|
|
self.append(line)
|
|
|
|
def exclude_pattern(self, pattern, anchor=True, prefix=None,
|
|
is_regex=False):
|
|
"""Remove strings (presumably filenames) from 'files' that match
|
|
'pattern'.
|
|
|
|
Other parameters are the same as for 'include_pattern()', above.
|
|
The list 'self.files' is modified in place. Return True if files are
|
|
found.
|
|
"""
|
|
files_found = False
|
|
pattern_re = _translate_pattern(pattern, anchor, prefix, is_regex)
|
|
for i in range(len(self.files) - 1, -1, -1):
|
|
if pattern_re.search(self.files[i]):
|
|
del self.files[i]
|
|
files_found = True
|
|
|
|
return files_found
|
|
|
|
#
|
|
# Private API
|
|
#
|
|
|
|
def _parse_template_line(self, line):
|
|
words = line.split()
|
|
if len(words) == 1 and words[0] not in (
|
|
'include', 'exclude', 'global-include', 'global-exclude',
|
|
'recursive-include', 'recursive-exclude', 'graft', 'prune'):
|
|
# no action given, let's use the default 'include'
|
|
words.insert(0, 'include')
|
|
|
|
action = words[0]
|
|
patterns = dir = dir_pattern = None
|
|
|
|
if action in ('include', 'exclude',
|
|
'global-include', 'global-exclude'):
|
|
if len(words) < 2:
|
|
raise PackagingTemplateError(
|
|
"%r expects <pattern1> <pattern2> ..." % action)
|
|
|
|
patterns = [convert_path(word) for word in words[1:]]
|
|
|
|
elif action in ('recursive-include', 'recursive-exclude'):
|
|
if len(words) < 3:
|
|
raise PackagingTemplateError(
|
|
"%r expects <dir> <pattern1> <pattern2> ..." % action)
|
|
|
|
dir = convert_path(words[1])
|
|
patterns = [convert_path(word) for word in words[2:]]
|
|
|
|
elif action in ('graft', 'prune'):
|
|
if len(words) != 2:
|
|
raise PackagingTemplateError(
|
|
"%r expects a single <dir_pattern>" % action)
|
|
|
|
dir_pattern = convert_path(words[1])
|
|
|
|
else:
|
|
raise PackagingTemplateError("unknown action %r" % action)
|
|
|
|
return action, patterns, dir, dir_pattern
|
|
|
|
def _process_template_line(self, line):
|
|
# Parse the line: split it up, make sure the right number of words
|
|
# is there, and return the relevant words. 'action' is always
|
|
# defined: it's the first word of the line. Which of the other
|
|
# three are defined depends on the action; it'll be either
|
|
# patterns, (dir and patterns), or (dir_pattern).
|
|
action, patterns, dir, dir_pattern = self._parse_template_line(line)
|
|
|
|
# OK, now we know that the action is valid and we have the
|
|
# right number of words on the line for that action -- so we
|
|
# can proceed with minimal error-checking.
|
|
if action == 'include':
|
|
for pattern in patterns:
|
|
if not self._include_pattern(pattern, anchor=True):
|
|
logger.warning("no files found matching %r", pattern)
|
|
|
|
elif action == 'exclude':
|
|
for pattern in patterns:
|
|
if not self.exclude_pattern(pattern, anchor=True):
|
|
logger.warning("no previously-included files "
|
|
"found matching %r", pattern)
|
|
|
|
elif action == 'global-include':
|
|
for pattern in patterns:
|
|
if not self._include_pattern(pattern, anchor=False):
|
|
logger.warning("no files found matching %r "
|
|
"anywhere in distribution", pattern)
|
|
|
|
elif action == 'global-exclude':
|
|
for pattern in patterns:
|
|
if not self.exclude_pattern(pattern, anchor=False):
|
|
logger.warning("no previously-included files "
|
|
"matching %r found anywhere in "
|
|
"distribution", pattern)
|
|
|
|
elif action == 'recursive-include':
|
|
for pattern in patterns:
|
|
if not self._include_pattern(pattern, prefix=dir):
|
|
logger.warning("no files found matching %r "
|
|
"under directory %r", pattern, dir)
|
|
|
|
elif action == 'recursive-exclude':
|
|
for pattern in patterns:
|
|
if not self.exclude_pattern(pattern, prefix=dir):
|
|
logger.warning("no previously-included files "
|
|
"matching %r found under directory %r",
|
|
pattern, dir)
|
|
|
|
elif action == 'graft':
|
|
if not self._include_pattern(None, prefix=dir_pattern):
|
|
logger.warning("no directories found matching %r",
|
|
dir_pattern)
|
|
|
|
elif action == 'prune':
|
|
if not self.exclude_pattern(None, prefix=dir_pattern):
|
|
logger.warning("no previously-included directories found "
|
|
"matching %r", dir_pattern)
|
|
else:
|
|
raise PackagingInternalError(
|
|
"this cannot happen: invalid action %r" % action)
|
|
|
|
def _include_pattern(self, pattern, anchor=True, prefix=None,
|
|
is_regex=False):
|
|
"""Select strings (presumably filenames) from 'self.files' that
|
|
match 'pattern', a Unix-style wildcard (glob) pattern.
|
|
|
|
Patterns are not quite the same as implemented by the 'fnmatch'
|
|
module: '*' and '?' match non-special characters, where "special"
|
|
is platform-dependent: slash on Unix; colon, slash, and backslash on
|
|
DOS/Windows; and colon on Mac OS.
|
|
|
|
If 'anchor' is true (the default), then the pattern match is more
|
|
stringent: "*.py" will match "foo.py" but not "foo/bar.py". If
|
|
'anchor' is false, both of these will match.
|
|
|
|
If 'prefix' is supplied, then only filenames starting with 'prefix'
|
|
(itself a pattern) and ending with 'pattern', with anything in between
|
|
them, will match. 'anchor' is ignored in this case.
|
|
|
|
If 'is_regex' is true, 'anchor' and 'prefix' are ignored, and
|
|
'pattern' is assumed to be either a string containing a regex or a
|
|
regex object -- no translation is done, the regex is just compiled
|
|
and used as-is.
|
|
|
|
Selected strings will be added to self.files.
|
|
|
|
Return True if files are found.
|
|
"""
|
|
files_found = False
|
|
pattern_re = _translate_pattern(pattern, anchor, prefix, is_regex)
|
|
|
|
# delayed loading of allfiles list
|
|
if self.allfiles is None:
|
|
self.findall()
|
|
|
|
for name in self.allfiles:
|
|
if pattern_re.search(name):
|
|
self.files.append(name)
|
|
files_found = True
|
|
|
|
return files_found
|
|
|
|
|
|
#
|
|
# Utility functions
|
|
#
|
|
def _findall(dir=os.curdir):
|
|
"""Find all files under 'dir' and return the list of full filenames
|
|
(relative to 'dir').
|
|
"""
|
|
from stat import S_ISREG, S_ISDIR, S_ISLNK
|
|
|
|
list = []
|
|
stack = [dir]
|
|
pop = stack.pop
|
|
push = stack.append
|
|
|
|
while stack:
|
|
dir = pop()
|
|
names = os.listdir(dir)
|
|
|
|
for name in names:
|
|
if dir != os.curdir: # avoid the dreaded "./" syndrome
|
|
fullname = os.path.join(dir, name)
|
|
else:
|
|
fullname = name
|
|
|
|
# Avoid excess stat calls -- just one will do, thank you!
|
|
stat = os.stat(fullname)
|
|
mode = stat.st_mode
|
|
if S_ISREG(mode):
|
|
list.append(fullname)
|
|
elif S_ISDIR(mode) and not S_ISLNK(mode):
|
|
push(fullname)
|
|
|
|
return list
|
|
|
|
|
|
def _glob_to_re(pattern):
|
|
"""Translate a shell-like glob pattern to a regular expression.
|
|
|
|
Return a string containing the regex. Differs from
|
|
'fnmatch.translate()' in that '*' does not match "special characters"
|
|
(which are platform-specific).
|
|
"""
|
|
pattern_re = fnmatch.translate(pattern)
|
|
|
|
# '?' and '*' in the glob pattern become '.' and '.*' in the RE, which
|
|
# IMHO is wrong -- '?' and '*' aren't supposed to match slash in Unix,
|
|
# and by extension they shouldn't match such "special characters" under
|
|
# any OS. So change all non-escaped dots in the RE to match any
|
|
# character except the special characters.
|
|
# XXX currently the "special characters" are just slash -- i.e. this is
|
|
# Unix-only.
|
|
pattern_re = re.sub(r'((?<!\\)(\\\\)*)\.', r'\1[^/]', pattern_re)
|
|
|
|
return pattern_re
|
|
|
|
|
|
def _translate_pattern(pattern, anchor=True, prefix=None, is_regex=False):
|
|
"""Translate a shell-like wildcard pattern to a compiled regular
|
|
expression.
|
|
|
|
Return the compiled regex. If 'is_regex' true,
|
|
then 'pattern' is directly compiled to a regex (if it's a string)
|
|
or just returned as-is (assumes it's a regex object).
|
|
"""
|
|
if is_regex:
|
|
if isinstance(pattern, str):
|
|
return re.compile(pattern)
|
|
else:
|
|
return pattern
|
|
|
|
if pattern:
|
|
pattern_re = _glob_to_re(pattern)
|
|
else:
|
|
pattern_re = ''
|
|
|
|
if prefix is not None:
|
|
# ditch end of pattern character
|
|
empty_pattern = _glob_to_re('')
|
|
prefix_re = _glob_to_re(prefix)[:-len(empty_pattern)]
|
|
# match both path separators, as in Postel's principle
|
|
sep_pat = "[" + re.escape(os.path.sep + os.path.altsep
|
|
if os.path.altsep else os.path.sep) + "]"
|
|
pattern_re = "^" + sep_pat.join([prefix_re, ".*" + pattern_re])
|
|
else: # no prefix -- respect anchor flag
|
|
if anchor:
|
|
pattern_re = "^" + pattern_re
|
|
|
|
return re.compile(pattern_re)
|