372 lines
13 KiB
Python
372 lines
13 KiB
Python
|
"""distutils.filelist
|
||
|
|
|
||
|
|
Provides the FileList class, used for poking about the filesystem
|
||
|
|
and building lists of files.
|
||
|
|
"""
|
||
|
|
|
||
|
|
import os
|
||
|
|
import re
|
||
|
|
import fnmatch
|
||
|
|
import functools
|
||
|
|
|
||
|
|
from distutils.util import convert_path
|
||
|
|
from distutils.errors import DistutilsTemplateError, DistutilsInternalError
|
||
|
|
from distutils import log
|
||
|
|
|
||
|
|
|
||
|
|
class FileList:
|
||
|
|
"""A list of files built by on exploring the filesystem and filtered by
|
||
|
|
applying various patterns to what we find there.
|
||
|
|
|
||
|
|
Instance attributes:
|
||
|
|
dir
|
||
|
|
directory from which files will be taken -- only used if
|
||
|
|
'allfiles' not supplied to constructor
|
||
|
|
files
|
||
|
|
list of filenames currently being built/filtered/manipulated
|
||
|
|
allfiles
|
||
|
|
complete list of files under consideration (ie. without any
|
||
|
|
filtering applied)
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, warn=None, debug_print=None):
|
||
|
|
# ignore argument to FileList, but keep them for backwards
|
||
|
|
# compatibility
|
||
|
|
self.allfiles = None
|
||
|
|
self.files = []
|
||
|
|
|
||
|
|
def set_allfiles(self, allfiles):
|
||
|
|
self.allfiles = allfiles
|
||
|
|
|
||
|
|
def findall(self, dir=os.curdir):
|
||
|
|
self.allfiles = findall(dir)
|
||
|
|
|
||
|
|
def debug_print(self, msg):
|
||
|
|
"""Print 'msg' to stdout if the global DEBUG (taken from the
|
||
|
|
DISTUTILS_DEBUG environment variable) flag is true.
|
||
|
|
"""
|
||
|
|
from distutils.debug import DEBUG
|
||
|
|
|
||
|
|
if DEBUG:
|
||
|
|
print(msg)
|
||
|
|
|
||
|
|
# Collection methods
|
||
|
|
|
||
|
|
def append(self, item):
|
||
|
|
self.files.append(item)
|
||
|
|
|
||
|
|
def extend(self, items):
|
||
|
|
self.files.extend(items)
|
||
|
|
|
||
|
|
def sort(self):
|
||
|
|
# Not a strict lexical sort!
|
||
|
|
sortable_files = sorted(map(os.path.split, self.files))
|
||
|
|
self.files = []
|
||
|
|
for sort_tuple in sortable_files:
|
||
|
|
self.files.append(os.path.join(*sort_tuple))
|
||
|
|
|
||
|
|
# Other miscellaneous utility methods
|
||
|
|
|
||
|
|
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]
|
||
|
|
|
||
|
|
# "File template" methods
|
||
|
|
|
||
|
|
def _parse_template_line(self, line):
|
||
|
|
words = line.split()
|
||
|
|
action = words[0]
|
||
|
|
|
||
|
|
patterns = dir = dir_pattern = None
|
||
|
|
|
||
|
|
if action in ('include', 'exclude', 'global-include', 'global-exclude'):
|
||
|
|
if len(words) < 2:
|
||
|
|
raise DistutilsTemplateError(
|
||
|
|
"'%s' expects <pattern1> <pattern2> ..." % action
|
||
|
|
)
|
||
|
|
patterns = [convert_path(w) for w in words[1:]]
|
||
|
|
elif action in ('recursive-include', 'recursive-exclude'):
|
||
|
|
if len(words) < 3:
|
||
|
|
raise DistutilsTemplateError(
|
||
|
|
"'%s' expects <dir> <pattern1> <pattern2> ..." % action
|
||
|
|
)
|
||
|
|
dir = convert_path(words[1])
|
||
|
|
patterns = [convert_path(w) for w in words[2:]]
|
||
|
|
elif action in ('graft', 'prune'):
|
||
|
|
if len(words) != 2:
|
||
|
|
raise DistutilsTemplateError(
|
||
|
|
"'%s' expects a single <dir_pattern>" % action
|
||
|
|
)
|
||
|
|
dir_pattern = convert_path(words[1])
|
||
|
|
else:
|
||
|
|
raise DistutilsTemplateError("unknown action '%s'" % action)
|
||
|
|
|
||
|
|
return (action, patterns, dir, dir_pattern)
|
||
|
|
|
||
|
|
def process_template_line(self, line): # noqa: C901
|
||
|
|
# 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':
|
||
|
|
self.debug_print("include " + ' '.join(patterns))
|
||
|
|
for pattern in patterns:
|
||
|
|
if not self.include_pattern(pattern, anchor=1):
|
||
|
|
log.warn("warning: no files found matching '%s'", pattern)
|
||
|
|
|
||
|
|
elif action == 'exclude':
|
||
|
|
self.debug_print("exclude " + ' '.join(patterns))
|
||
|
|
for pattern in patterns:
|
||
|
|
if not self.exclude_pattern(pattern, anchor=1):
|
||
|
|
log.warn(
|
||
|
|
(
|
||
|
|
"warning: no previously-included files "
|
||
|
|
"found matching '%s'"
|
||
|
|
),
|
||
|
|
pattern,
|
||
|
|
)
|
||
|
|
|
||
|
|
elif action == 'global-include':
|
||
|
|
self.debug_print("global-include " + ' '.join(patterns))
|
||
|
|
for pattern in patterns:
|
||
|
|
if not self.include_pattern(pattern, anchor=0):
|
||
|
|
log.warn(
|
||
|
|
(
|
||
|
|
"warning: no files found matching '%s' "
|
||
|
|
"anywhere in distribution"
|
||
|
|
),
|
||
|
|
pattern,
|
||
|
|
)
|
||
|
|
|
||
|
|
elif action == 'global-exclude':
|
||
|
|
self.debug_print("global-exclude " + ' '.join(patterns))
|
||
|
|
for pattern in patterns:
|
||
|
|
if not self.exclude_pattern(pattern, anchor=0):
|
||
|
|
log.warn(
|
||
|
|
(
|
||
|
|
"warning: no previously-included files matching "
|
||
|
|
"'%s' found anywhere in distribution"
|
||
|
|
),
|
||
|
|
pattern,
|
||
|
|
)
|
||
|
|
|
||
|
|
elif action == 'recursive-include':
|
||
|
|
self.debug_print("recursive-include {} {}".format(dir, ' '.join(patterns)))
|
||
|
|
for pattern in patterns:
|
||
|
|
if not self.include_pattern(pattern, prefix=dir):
|
||
|
|
msg = (
|
||
|
|
"warning: no files found matching '%s' " "under directory '%s'"
|
||
|
|
)
|
||
|
|
log.warn(msg, pattern, dir)
|
||
|
|
|
||
|
|
elif action == 'recursive-exclude':
|
||
|
|
self.debug_print("recursive-exclude {} {}".format(dir, ' '.join(patterns)))
|
||
|
|
for pattern in patterns:
|
||
|
|
if not self.exclude_pattern(pattern, prefix=dir):
|
||
|
|
log.warn(
|
||
|
|
(
|
||
|
|
"warning: no previously-included files matching "
|
||
|
|
"'%s' found under directory '%s'"
|
||
|
|
),
|
||
|
|
pattern,
|
||
|
|
dir,
|
||
|
|
)
|
||
|
|
|
||
|
|
elif action == 'graft':
|
||
|
|
self.debug_print("graft " + dir_pattern)
|
||
|
|
if not self.include_pattern(None, prefix=dir_pattern):
|
||
|
|
log.warn("warning: no directories found matching '%s'", dir_pattern)
|
||
|
|
|
||
|
|
elif action == 'prune':
|
||
|
|
self.debug_print("prune " + dir_pattern)
|
||
|
|
if not self.exclude_pattern(None, prefix=dir_pattern):
|
||
|
|
log.warn(
|
||
|
|
("no previously-included directories found " "matching '%s'"),
|
||
|
|
dir_pattern,
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
raise DistutilsInternalError(
|
||
|
|
"this cannot happen: invalid action '%s'" % action
|
||
|
|
)
|
||
|
|
|
||
|
|
# Filtering/selection methods
|
||
|
|
|
||
|
|
def include_pattern(self, pattern, anchor=1, prefix=None, is_regex=0):
|
||
|
|
"""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, False otherwise.
|
||
|
|
"""
|
||
|
|
# XXX docstring lying about what the special chars are?
|
||
|
|
files_found = False
|
||
|
|
pattern_re = translate_pattern(pattern, anchor, prefix, is_regex)
|
||
|
|
self.debug_print("include_pattern: applying regex r'%s'" % pattern_re.pattern)
|
||
|
|
|
||
|
|
# delayed loading of allfiles list
|
||
|
|
if self.allfiles is None:
|
||
|
|
self.findall()
|
||
|
|
|
||
|
|
for name in self.allfiles:
|
||
|
|
if pattern_re.search(name):
|
||
|
|
self.debug_print(" adding " + name)
|
||
|
|
self.files.append(name)
|
||
|
|
files_found = True
|
||
|
|
return files_found
|
||
|
|
|
||
|
|
def exclude_pattern(self, pattern, anchor=1, prefix=None, is_regex=0):
|
||
|
|
"""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, False otherwise.
|
||
|
|
"""
|
||
|
|
files_found = False
|
||
|
|
pattern_re = translate_pattern(pattern, anchor, prefix, is_regex)
|
||
|
|
self.debug_print("exclude_pattern: applying regex r'%s'" % pattern_re.pattern)
|
||
|
|
for i in range(len(self.files) - 1, -1, -1):
|
||
|
|
if pattern_re.search(self.files[i]):
|
||
|
|
self.debug_print(" removing " + self.files[i])
|
||
|
|
del self.files[i]
|
||
|
|
files_found = True
|
||
|
|
return files_found
|
||
|
|
|
||
|
|
|
||
|
|
# Utility functions
|
||
|
|
|
||
|
|
|
||
|
|
def _find_all_simple(path):
|
||
|
|
"""
|
||
|
|
Find all files under 'path'
|
||
|
|
"""
|
||
|
|
all_unique = _UniqueDirs.filter(os.walk(path, followlinks=True))
|
||
|
|
results = (
|
||
|
|
os.path.join(base, file) for base, dirs, files in all_unique for file in files
|
||
|
|
)
|
||
|
|
return filter(os.path.isfile, results)
|
||
|
|
|
||
|
|
|
||
|
|
class _UniqueDirs(set):
|
||
|
|
"""
|
||
|
|
Exclude previously-seen dirs from walk results,
|
||
|
|
avoiding infinite recursion.
|
||
|
|
Ref https://bugs.python.org/issue44497.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __call__(self, walk_item):
|
||
|
|
"""
|
||
|
|
Given an item from an os.walk result, determine
|
||
|
|
if the item represents a unique dir for this instance
|
||
|
|
and if not, prevent further traversal.
|
||
|
|
"""
|
||
|
|
base, dirs, files = walk_item
|
||
|
|
stat = os.stat(base)
|
||
|
|
candidate = stat.st_dev, stat.st_ino
|
||
|
|
found = candidate in self
|
||
|
|
if found:
|
||
|
|
del dirs[:]
|
||
|
|
self.add(candidate)
|
||
|
|
return not found
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def filter(cls, items):
|
||
|
|
return filter(cls(), items)
|
||
|
|
|
||
|
|
|
||
|
|
def findall(dir=os.curdir):
|
||
|
|
"""
|
||
|
|
Find all files under 'dir' and return the list of full filenames.
|
||
|
|
Unless dir is '.', return full filenames with dir prepended.
|
||
|
|
"""
|
||
|
|
files = _find_all_simple(dir)
|
||
|
|
if dir == os.curdir:
|
||
|
|
make_rel = functools.partial(os.path.relpath, start=dir)
|
||
|
|
files = map(make_rel, files)
|
||
|
|
return list(files)
|
||
|
|
|
||
|
|
|
||
|
|
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 (currently: just os.sep).
|
||
|
|
sep = os.sep
|
||
|
|
if os.sep == '\\':
|
||
|
|
# we're using a regex to manipulate a regex, so we need
|
||
|
|
# to escape the backslash twice
|
||
|
|
sep = r'\\\\'
|
||
|
|
escaped = r'\1[^%s]' % sep
|
||
|
|
pattern_re = re.sub(r'((?<!\\)(\\\\)*)\.', escaped, pattern_re)
|
||
|
|
return pattern_re
|
||
|
|
|
||
|
|
|
||
|
|
def translate_pattern(pattern, anchor=1, prefix=None, is_regex=0):
|
||
|
|
"""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
|
||
|
|
|
||
|
|
# ditch start and end characters
|
||
|
|
start, _, end = glob_to_re('_').partition('_')
|
||
|
|
|
||
|
|
if pattern:
|
||
|
|
pattern_re = glob_to_re(pattern)
|
||
|
|
assert pattern_re.startswith(start) and pattern_re.endswith(end)
|
||
|
|
else:
|
||
|
|
pattern_re = ''
|
||
|
|
|
||
|
|
if prefix is not None:
|
||
|
|
prefix_re = glob_to_re(prefix)
|
||
|
|
assert prefix_re.startswith(start) and prefix_re.endswith(end)
|
||
|
|
prefix_re = prefix_re[len(start) : len(prefix_re) - len(end)]
|
||
|
|
sep = os.sep
|
||
|
|
if os.sep == '\\':
|
||
|
|
sep = r'\\'
|
||
|
|
pattern_re = pattern_re[len(start) : len(pattern_re) - len(end)]
|
||
|
|
pattern_re = r'{}\A{}{}.*{}{}'.format(start, prefix_re, sep, pattern_re, end)
|
||
|
|
else: # no prefix -- respect anchor flag
|
||
|
|
if anchor:
|
||
|
|
pattern_re = r'{}\A{}'.format(start, pattern_re[len(start) :])
|
||
|
|
|
||
|
|
return re.compile(pattern_re)
|