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Edit File: pycompile
#! /usr/bin/python2 # -*- coding: utf-8 -*- vim: et ts=4 sw=4 # # Copyright © 2010-2019 Piotr Ożarowski <piotr@debian.org> # Copyright © 2010 Canonical Ltd # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. from __future__ import with_statement import logging import optparse import os import sys from os import environ, listdir from os.path import exists, isdir, islink, join from subprocess import PIPE, STDOUT, Popen sys.path.insert(1, '/usr/share/python/') from debpython.version import SUPPORTED, debsorted, vrepr, \ get_requested_versions, parse_vrange, getver from debpython import files as dpf from debpython.namespace import add_namespace_files from debpython.option import Option, compile_regexpr from debpython.tools import memoize, PUBLIC_DIR_RE # initialize script logging.basicConfig(format='%(levelname).1s: %(module)s:%(lineno)d: ' '%(message)s') log = logging.getLogger(__name__) STDINS = {} WORKERS = {} """TODO: move it to manpage Examples: pycompile -p python-mako # package's public files pycompile -p foo /usr/share/foo # package's private files pycompile -p foo -V 2.6- /usr/share/foo # private files, Python >= 2.6 pycompile -V 2.6 /usr/lib/python2.6/dist-packages # python2.6 only pycompile -V 2.6 /usr/lib/foo/bar.py # python2.6 only """ ### EXCLUDES ################################################### @memoize def get_exclude_patterns_from_dir(name='/usr/share/python/bcep/'): """Return patterns for files that shouldn't be bytecompiled.""" if not isdir(name): return [] result = [] for fn in listdir(name): with file(join(name, fn), 'r') as lines: for line in lines: type_, vrange, dname, pattern = line.split('|', 3) vrange = parse_vrange(vrange) versions = get_requested_versions(vrange, available=True) if not versions: # pattern doesn't match installed Python versions continue pattern = pattern.rstrip('\n') if type_ == 're': pattern = compile_regexpr(None, None, pattern) result.append((type_, versions, dname, pattern)) return result def get_exclude_patterns(directory='/', patterns=None, versions=None): """Return patterns for files that shouldn't be compiled in given dir.""" if versions is not None: # make sure it's a set (debsorted returns a list) versions = set(versions) if patterns: if versions is None: versions = set(SUPPORTED) patterns = [('re', versions, directory, i) for i in patterns] else: patterns = [] for type_, vers, dname, pattern in get_exclude_patterns_from_dir(): # skip patterns that do not match requested directory if not dname.startswith(directory[:len(dname)]): continue # skip patterns that do not match requested versions if versions and not versions & vers: continue patterns.append((type_, vers, dname, pattern)) return patterns def filter_files(files, e_patterns, compile_versions): """Generate (file, versions_to_compile) pairs.""" for fn in files: valid_versions = set(compile_versions) # all by default for type_, vers, dname, pattern in e_patterns: if type_ == 'dir' and fn.startswith(dname): valid_versions = valid_versions - vers elif type_ == 're' and pattern.match(fn): valid_versions = valid_versions - vers # move to the next file if all versions were removed if not valid_versions: break if valid_versions: public_dir = PUBLIC_DIR_RE.match(fn) if public_dir: yield fn, set([getver(public_dir.group(1))]) else: yield fn, valid_versions ### COMPILE #################################################### def py_compile(version, optimize, workers): if not isinstance(version, basestring): version = vrepr(version) cmd = "/usr/bin/python%s%s -m py_compile -" \ % (version, ' -O' if optimize else '') process = Popen(cmd, bufsize=1, shell=True, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True) workers[version] = process # keep the reference for .communicate() stdin = process.stdin while True: filename = (yield) stdin.write(filename + '\n') def compile(files, versions, force, optimize, e_patterns=None): global STDINS, WORKERS # start Python interpreters that will handle byte compilation for version in versions: if version not in STDINS: coroutine = py_compile(version, optimize, WORKERS) coroutine.next() STDINS[version] = coroutine # byte compile files for fn, versions_to_compile in filter_files(files, e_patterns, versions): cfn = fn + 'o' if optimize else 'c' if not exists(fn): # pycentral's hook should clean it later if islink(fn): log.warn('dangling symlink skipped: %s (%s)', fn, os.readlink(fn)) continue if exists(cfn) and not force: ftime = os.stat(fn).st_mtime try: ctime = os.stat(cfn).st_mtime except os.error: ctime = 0 if ctime > ftime: continue for version in versions_to_compile: try: pipe = STDINS[version] except KeyError: # `pycompile /usr/lib/` invoked, add missing worker pipe = py_compile(version, optimize, WORKERS) pipe.next() STDINS[version] = pipe pipe.send(fn) ################################################################ def main(): usage = '%prog [-V [X.Y][-][A.B]] DIR_OR_FILE [-X REGEXPR]\n' + \ ' %prog -p PACKAGE' parser = optparse.OptionParser(usage, version='%prog 1.0', option_class=Option) parser.add_option('-v', '--verbose', action='store_true', dest='verbose', help='turn verbose mode on') parser.add_option('-q', '--quiet', action='store_false', dest='verbose', default=False, help='be quiet') parser.add_option('-f', '--force', action='store_true', dest='force', default=False, help='force rebuild even if timestamps are up-to-date') parser.add_option('-O', action='store_true', dest='optimize', default=False, help="byte-compile to .pyo files") parser.add_option('-p', '--package', help='specify Debian package name whose files should be bytecompiled') parser.add_option('-V', type='version_range', dest='vrange', help="""force private modules to be bytecompiled with Python version from given range, regardless of the default Python version in the system. If there are no other options, bytecompile all public modules for installed Python versions that match given range. VERSION_RANGE examples: '2.5' (version 2.5 only), '2.5-' (version 2.5 or newer), '2.5-2.7' (version 2.5 or 2.6), '-3.0' (all supported 2.X versions)""") parser.add_option('-X', '--exclude', action='append', dest='regexpr', type='regexpr', help='exclude items that match given REGEXPR. You may use this option \ multiple times to build up a list of things to exclude.') (options, args) = parser.parse_args() if options.verbose or environ.get('PYCOMPILE_DEBUG') == '1': log.setLevel(logging.DEBUG) log.debug('argv: %s', sys.argv) log.debug('options: %s', options) log.debug('args: %s', args) else: log.setLevel(logging.WARN) if options.regexpr and not args: parser.error('--exclude option works with private directories ' 'only, please use /usr/share/python/bcep to specify ' 'public modules to skip') if options.vrange and options.vrange[0] == options.vrange[1] and\ options.vrange != (None, None) and\ exists("/usr/bin/python%d.%d" % options.vrange[0]): # specific version requested, use it even if it's not in SUPPORTED versions = set(options.vrange[:1]) else: versions = get_requested_versions(options.vrange, available=True) if not versions: log.error('Requested versions are not installed') exit(3) if options.package and args: # package's private directories # get requested Python version compile_versions = debsorted(versions)[:1] log.debug('compile versions: %s', versions) pkg_files = tuple(dpf.from_package(options.package)) for item in args: e_patterns = get_exclude_patterns(item, options.regexpr, \ compile_versions) if not exists(item): log.warn('No such file or directory: %s', item) else: log.debug('byte compiling %s using Python %s', item, compile_versions) files = dpf.filter_directory(pkg_files, item) compile(files, compile_versions, options.force, options.optimize, e_patterns) elif options.package: # package's public modules # no need to limit versions here, version is hardcoded in path or # via -V option e_patterns = get_exclude_patterns() files = dpf.from_package(options.package, extensions=('.py', '.so')) files = dpf.filter_public(files, versions) files = add_namespace_files(files, options.package, action=True) files = dpf.filter_out_ext(files, ('.so',)) compile(files, versions, options.force, options.optimize, e_patterns) elif args: # other directories/files versions = debsorted(versions)[:1] for item in args: e_patterns = get_exclude_patterns(item, options.regexpr, versions) files = dpf.from_directory(item, extensions=('.py', '.so')) files = add_namespace_files(files, action=True) files = dpf.filter_out_ext(files, ('.so',)) compile(files, versions, options.force, options.optimize, e_patterns) else: parser.print_usage() exit(1) # wait for all processes to finish rv = 0 for process in WORKERS.itervalues(): child_output, child_unused = process.communicate() if process.returncode not in (None, 0): # FIXME: find out the package the file belongs to sys.stderr.write(child_output) rv = process.returncode if rv != 0: rv += 100 exit(rv) if __name__ == '__main__': main()