Use bundle_data and create_bundle to add support for iOS app bundle.

build/config/ios/ios_gen_plist.py

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import argparse
+import plistlib
+import os
+import re
+import subprocess
+import sys
+import tempfile
+import shlex
+
+
+# Xcode substitutes variables like ${PRODUCT_NAME} when compiling Info.plist.
+# It also supports supports modifiers like :identifier or :rfc1034identifier.
+# SUBST_RE matches a variable substitution pattern with an optional modifier,
+# while IDENT_RE matches all characters that are not valid in an "identifier"
+# value (used when applying the modifier).
+SUBST_RE = re.compile(r'\$\{(?P<id>[^}]*?)(?P<modifier>:[^}]*)?\}')
+IDENT_RE = re.compile(r'[/\s]')
+
+
+class ArgumentParser(argparse.ArgumentParser):
+  """Subclass of argparse.ArgumentParser to work with GN response files.
+
+  GN response file writes all the arguments on a single line and assumes
+  that the python script uses shlext.split() to extract them. Since the
+  default ArgumentParser expects a single argument per line, we need to
+  provide a subclass to have the correct support for @{{response_file_name}}.
+  """
+
+  def convert_arg_line_to_args(self, arg_line):
+    return shlex.split(arg_line)
+
+
+def InterpolateList(values, substitutions):
+  """Interpolates variable references into |value| using |substitutions|.
+
+  Inputs:
+    values: a list of values
+    substitutions: a mapping of variable names to values
+
+  Returns:
+    A new list of values with all variables references ${VARIABLE} replaced
+    by their value in |substitutions| or None if any of the variable has no
+    subsitution.
+  """
+  result = []
+  for value in values:
+    interpolated = InterpolateValue(value, substitutions)
+    if interpolated is None:
+      return None
+    result.append(interpolated)
+  return result
+
+
+def InterpolateString(value, substitutions):
+  """Interpolates variable references into |value| using |substitutions|.
+
+  Inputs:
+    value: a string
+    substitutions: a mapping of variable names to values
+
+  Returns:
+    A new string with all variables references ${VARIABLES} replaced by their
+    value in |substitutions| or None if any of the variable has no substitution.
+  """
+  result = value
+  for match in reversed(list(SUBST_RE.finditer(value))):
+    variable = match.group('id')
+    if variable not in substitutions:
+      return None
+    # Some values need to be identifier and thus the variables references may
+    # contains :modifier attributes to indicate how they should be converted
+    # to identifiers ("identifier" replaces all invalid characters by '-' and
+    # "rfc1034identifier" replaces them by "_" to make valid URI too).
+    modifier = match.group('modifier')
+    if modifier == 'identifier':
+      interpolated = IDENT_RE.sub('-', substitutions[variable])
+    elif modifier == 'rfc1034identifier':
+      interpolated = IDENT_RE.sub('_', substitutions[variable])
+    else:
+      interpolated = substitutions[variable]
+    result = result[:match.start()] + interpolated + result[match.end():]
+  return result
+
+
+def InterpolateValue(value, substitutions):
+  """Interpolates variable references into |value| using |substitutions|.
+
+  Inputs:
+    value: a value, can be a dictionary, list, string or other
+    substitutions: a mapping of variable names to values
+
+  Returns:
+    A new value with all variables references ${VARIABLES} replaced by their
+    value in |substitutions| or None if any of the variable has no substitution.
+  """
+  if isinstance(value, dict):
+    return Interpolate(value, substitutions)
+  if isinstance(value, list):
+    return InterpolateList(value, substitutions)
+  if isinstance(value, str):
+    return InterpolateString(value, substitutions)
+  return value
+
+
+def Interpolate(plist, substitutions):
+  """Interpolates variable references into |value| using |substitutions|.
+
+  Inputs:
+    plist: a dictionary representing a Property List (.plist) file
+    substitutions: a mapping of variable names to values
+
+  Returns:
+    A new plist with all variables references ${VARIABLES} replaced by their
+    value in |substitutions|. All values that contains references with no
+    substitutions will be removed and the corresponding key will be cleared
+    from the plist (not recursively).
+  """
+  result = {}
+  for key in plist:
+    value = InterpolateValue(plist[key], substitutions)
+    if value is not None:
+      result[key] = value
+  return result
+
+
+def LoadPList(path):
+  """Loads Plist at |path| and returns it as a dictionary."""
+  fd, name = tempfile.mkstemp()
+  try:
+    subprocess.check_call(['plutil', '-convert', 'xml1', '-o', name, path])
+    with os.fdopen(fd, 'r') as f:
+      return plistlib.readPlist(f)
+  finally:
+    os.unlink(name)
+
+
+def SavePList(path, data):
+  """Saves |data| as a Plist to |path| in binary1 format."""
+  fd, name = tempfile.mkstemp()
+  try:
+    with os.fdopen(fd, 'w') as f:
+      plistlib.writePlist(data, f)
+    subprocess.check_call(['plutil', '-convert', 'binary1', '-o', path, name])
+  finally:
+    os.unlink(name)
+
+
+def MergePList(plist1, plist2):
+  """Merges |plist1| with |plist2| recursively.
+
+  Creates a new dictionary representing a Property List (.plist) files by
+  merging the two dictionary |plist1| and |plist2| recursively (only for
+  dictionary values).
+
+  Args:
+    plist1: a dictionary representing a Property List (.plist) file
+    plist2: a dictionary representing a Property List (.plist) file
+
+  Returns:
+    A new dictionary representing a Property List (.plist) file by merging
+    |plist1| with |plist2|. If any value is a dictionary, they are merged
+    recursively, otherwise |plist2| value is used.
+  """
+  if not isinstance(plist1, dict) or not isinstance(plist2, dict):
+    if plist2 is not None:
+      return plist2
+    else:
+      return plist1
+  result = {}
+  for key in set(plist1) | set(plist2):
+    if key in plist2:
+      value = plist2[key]
+    else:
+      value = plist1[key]
+    if isinstance(value, dict):
+      value = MergePList(plist1.get(key, None), plist2.get(key, None))
+    result[key] = value
+  return result
+
+
+def main():
+  parser = ArgumentParser(
+      description='A script to generate iOS application Info.plist.',
+      fromfile_prefix_chars='@')
+  parser.add_argument('-o', '--output', required=True,
+                      help='Path to output plist file.')
+  parser.add_argument('-s', '--subst', action='append', default=[],
+                      help='Substitution rule in the format "key=value".')
+  parser.add_argument('path', nargs="+", help='Path to input plist files.')
+  args = parser.parse_args()
+  substitutions = {}
+  for subst in args.subst:
+    key, value = subst.split('=', 1)
+    substitutions[key] = value
+  data = {}
+  for filename in args.path:
+    data = MergePList(data, LoadPList(filename))
+  data = Interpolate(data, substitutions)
+  SavePList(args.output, data)
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())