Move copy_dart.py from client to tools

client/tools/copy_dart.py

-#!/usr/bin/env python
-# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-"""Used to merge and copy dart source files for deployment to AppEngine"""
-
-import fileinput
-import sys
-import shutil
-import os
-import re
-from os.path import abspath, basename, dirname, exists, isabs, join
-from glob import glob
-
-re_directive = re.compile(
-    r'^#(library|import|source|native|resource)\([\'"]([^\'"]*)[\'"](.*)\);$')
-
-class Library(object):
-  def __init__(self, name, imports, sources, natives, code):
-    self.name = name
-    self.imports = imports
-    self.sources = sources
-    self.natives = natives
-    self.code = code
-
-def parseLibrary(library):
-  """ Parses a .dart source file that is the root of a library, and returns
-      information about it: the name, the imports, included sources, and any
-      code in the file.
-  """
-  libraryname = None
-  imports = []
-  sources = []
-  natives = []
-  inlinecode = []
-  if exists(library):
-    # TODO(sigmund): stop parsing when import/source
-    for line in fileinput.input(library):
-      match = re_directive.match(line)
-      if match:
-        directive = match.group(1)
-        if directive == 'library':
-          assert libraryname is None
-          libraryname = match.group(2)
-        elif directive == 'source':
-          sources.append(match.group(2))
-        elif directive == 'import':
-          imports.append((match.group(2), match.group(3)))
-        elif directive == 'native':
-          natives.append(match.group(2))
-        elif directive == 'resource':
-          # currently ignored
-          pass
-        else:
-          raise 'unknown directive %s' % directive
-      else:
-        inlinecode.append(line)
-    fileinput.close()
-  return Library(libraryname, imports, sources, natives, inlinecode)
-
-def normjoin(*args):
-  return os.path.normpath(os.path.join(*args))
-
-def mergefiles(srcs, dstfile):
-  for src in srcs:
-    with open(src, 'r') as s:
-      dstfile.write(s.read())
-
-def copyfile(src, dst):
-  if not exists(dirname(dst)):
-    os.makedirs(dirname(dst))
-  with open(src, 'r') as s:
-    with open(dst, 'w') as d:
-      d.write(s.read())
-
-def main(outdir = None, *inputs):
-  if not outdir or not inputs:
-    print "Usage: %s OUTDIR INPUTS" % args[0]
-    print "  OUTDIR is the war directory to copy to"
-    print "  INPUTS is a list of files or patterns used to specify the input"
-    print "   .dart files"
-    print "This script should be run from the client root directory."
-    print "Files will be merged and copied to: OUTDIR/relative-path-of-file,"
-    print "except for dart files with absolute paths, which will be copied to"
-    print " OUTDIR/absolute-path-as-directories"
-    return 1
-
-  entry_libraries = []
-  for i in inputs:
-    entry_libraries.extend(glob(i))
-
-  for entrypoint in entry_libraries:
-    # Get the transitive set of dart files this entrypoint depends on, merging
-    # each library along the way.
-    worklist = [os.path.normpath(entrypoint)]
-    seen = set()
-    while len(worklist) > 0:
-      lib = worklist.pop()
-      if lib in seen:
-        continue
-
-      seen.add(lib)
-
-      if lib.startswith('dart:'):
-        continue
-
-      if (dirname(dirname(lib)).endswith('dom/generated/src')
-          or dirname(lib).endswith('dom/src')):
-        continue
-
-      if lib.endswith('json/json.dart'):
-        # TODO(jmesserly): Dartium interprets "json.dart" as "dart_json.dart",
-        # so we need that add dart_json.dart here. This is hacky.
-        lib = lib.replace('json.dart', 'dart_json.dart')
-
-      library = parseLibrary(lib)
-
-      # Ensure output directory exists
-      outpath = join(outdir, lib[1:] if isabs(lib) else lib)
-      dstpath = dirname(outpath)
-      if not exists(dstpath):
-        os.makedirs(dstpath)
-
-
-      # Create file containing all imports, and inlining all sources
-      with open(outpath, 'w') as f:
-        if library.name:
-          f.write("#library('%s');\n\n" % library.name)
-        else:
-          f.write("#library('%s');\n\n" % basename(lib))
-        for (importfile, optional_prefix) in library.imports:
-          f.write("#import('%s'%s);\n" % (importfile, optional_prefix))
-        for native in library.natives:
-          if isabs(native):
-            npath = native[1:]
-          else:
-            npath = native
-          f.write("#native('%s');\n" % npath)
-          copyfile(normjoin(dirname(lib), native),
-              join(dirname(outpath), npath))
-        f.write('%s' % (''.join(library.code)))
-        mergefiles([normjoin(dirname(lib), s) for s in library.sources], f)
-
-      for (i, prefix) in library.imports:
-        if not i.startswith('dart:'):
-          worklist.append(normjoin(dirname(lib), i));
-
-  return 0
-
-if __name__ == '__main__':
-  sys.exit(main(*sys.argv[1:]))