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Diffstat (limited to 'contexts/data/lib/closure-library/closure/bin/build/depswriter.py')
| -rwxr-xr-x | contexts/data/lib/closure-library/closure/bin/build/depswriter.py | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/contexts/data/lib/closure-library/closure/bin/build/depswriter.py b/contexts/data/lib/closure-library/closure/bin/build/depswriter.py deleted file mode 100755 index dfecc4b..0000000 --- a/contexts/data/lib/closure-library/closure/bin/build/depswriter.py +++ /dev/null @@ -1,202 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2009 The Closure Library Authors. All Rights Reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS-IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - - -"""Generates out a Closure deps.js file given a list of JavaScript sources. - -Paths can be specified as arguments or (more commonly) specifying trees -with the flags (call with --help for descriptions). - -Usage: depswriter.py [path/to/js1.js [path/to/js2.js] ...] -""" - -import logging -import optparse -import os -import posixpath -import shlex -import sys - -import source -import treescan - - -__author__ = 'nnaze@google.com (Nathan Naze)' - - -def MakeDepsFile(source_map): - """Make a generated deps file. - - Args: - source_map: A dict map of the source path to source.Source object. - - Returns: - str, A generated deps file source. - """ - - # Write in path alphabetical order - paths = sorted(source_map.keys()) - - lines = [] - - for path in paths: - js_source = source_map[path] - - # We don't need to add entries that don't provide anything. - if js_source.provides: - lines.append(_GetDepsLine(path, js_source)) - - return ''.join(lines) - - -def _GetDepsLine(path, js_source): - """Get a deps.js file string for a source.""" - - provides = sorted(js_source.provides) - requires = sorted(js_source.requires) - - return 'goog.addDependency(\'%s\', %s, %s);\n' % (path, provides, requires) - - -def _GetOptionsParser(): - """Get the options parser.""" - - parser = optparse.OptionParser(__doc__) - - parser.add_option('--output_file', - dest='output_file', - action='store', - help=('If specified, write output to this path instead of ' - 'writing to standard output.')) - parser.add_option('--root', - dest='roots', - default=[], - action='append', - help='A root directory to scan for JS source files. ' - 'Paths of JS files in generated deps file will be ' - 'relative to this path. This flag may be specified ' - 'multiple times.') - parser.add_option('--root_with_prefix', - dest='roots_with_prefix', - default=[], - action='append', - help='A root directory to scan for JS source files, plus ' - 'a prefix (if either contains a space, surround with ' - 'quotes). Paths in generated deps file will be relative ' - 'to the root, but preceded by the prefix. This flag ' - 'may be specified multiple times.') - parser.add_option('--path_with_depspath', - dest='paths_with_depspath', - default=[], - action='append', - help='A path to a source file and an alternate path to ' - 'the file in the generated deps file (if either contains ' - 'a space, surround with whitespace). This flag may be ' - 'specified multiple times.') - return parser - - -def _NormalizePathSeparators(path): - """Replaces OS-specific path separators with POSIX-style slashes. - - Args: - path: str, A file path. - - Returns: - str, The path with any OS-specific path separators (such as backslash on - Windows) replaced with URL-compatible forward slashes. A no-op on systems - that use POSIX paths. - """ - return path.replace(os.sep, posixpath.sep) - - -def _GetRelativePathToSourceDict(root, prefix=''): - """Scans a top root directory for .js sources. - - Args: - root: str, Root directory. - prefix: str, Prefix for returned paths. - - Returns: - dict, A map of relative paths (with prefix, if given), to source.Source - objects. - """ - # Remember and restore the cwd when we're done. We work from the root so - # that paths are relative from the root. - start_wd = os.getcwd() - os.chdir(root) - - path_to_source = {} - for path in treescan.ScanTreeForJsFiles('.'): - prefixed_path = _NormalizePathSeparators(os.path.join(prefix, path)) - path_to_source[prefixed_path] = source.Source(source.GetFileContents(path)) - - os.chdir(start_wd) - - return path_to_source - - -def _GetPair(s): - """Return a string as a shell-parsed tuple. Two values expected.""" - try: - # shlex uses '\' as an escape character, so they must be escaped. - s = s.replace('\\', '\\\\') - first, second = shlex.split(s) - return (first, second) - except: - raise Exception('Unable to parse input line as a pair: %s' % s) - - -def main(): - """CLI frontend to MakeDepsFile.""" - logging.basicConfig(format=(sys.argv[0] + ': %(message)s'), - level=logging.INFO) - options, args = _GetOptionsParser().parse_args() - - path_to_source = {} - - # Roots without prefixes - for root in options.roots: - path_to_source.update(_GetRelativePathToSourceDict(root)) - - # Roots with prefixes - for root_and_prefix in options.roots_with_prefix: - root, prefix = _GetPair(root_and_prefix) - path_to_source.update(_GetRelativePathToSourceDict(root, prefix=prefix)) - - # Source paths - for path in args: - path_to_source[path] = source.Source(source.GetFileContents(path)) - - # Source paths with alternate deps paths - for path_with_depspath in options.paths_with_depspath: - srcpath, depspath = _GetPair(path_with_depspath) - path_to_source[depspath] = source.Source(source.GetFileContents(srcpath)) - - # Make our output pipe. - if options.output_file: - out = open(options.output_file, 'w') - else: - out = sys.stdout - - out.write('// This file was autogenerated by %s.\n' % sys.argv[0]) - out.write('// Please do not edit.\n') - - out.write(MakeDepsFile(path_to_source)) - - -if __name__ == '__main__': - main() |