Service isolate requests Observatory assets from embedder

runtime/tools/create_archive.py

+# Copyright (c) 2015, 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.
+#
+# This python script creates a tar archive and a C++ source file which contains
+# the tar archive as an array of bytes.
+
+import os
+import sys
+from os.path import join, splitext
+import time
+from optparse import OptionParser
+from datetime import date
+import tarfile
+import tempfile
+
+def makeArchive(tar_path, client_root, files):
+  tar = tarfile.open(tar_path, mode='w')
+  for input_file_name in files:
+    # Chop off client_root.
+    archive_file_name = input_file_name[ len(client_root) : ]
+    # Open input file and add it to the archive.
+    with open(input_file_name, 'rb') as input_file:
+      tarInfo = tarfile.TarInfo(name=archive_file_name)
+      input_file.seek(0,2)
+      tarInfo.size = input_file.tell()
+      input_file.seek(0)
+      tar.addfile(tarInfo, fileobj=input_file)
+  tar.close()
+
+def writeCCFile(output_file,
+                outer_namespace,
+                inner_namespace,
+                name,
+                tar_archive,
+                ):
+  cc_text = '''
+// Copyright (c) %d, 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.
+
+''' % date.today().year
+  cc_text += 'namespace %s {\n' % outer_namespace
+  if inner_namespace != None:
+    cc_text += 'namespace %s {\n' % inner_namespace
+  cc_text += '\n\n'
+  # Write the archive.
+  cc_text += 'static const char %s_[] = {\n  ' % name
+  lineCounter = 0
+  for byte in tar_archive:
+    cc_text += r" '\x%02x'," % ord(byte)
+    lineCounter += 1
+    if lineCounter == 10:
+      cc_text += '\n   '
+      lineCounter = 0
+  if lineCounter != 0:
+    cc_text += '\n   '
+  cc_text += '};\n'
+  cc_text += '\nunsigned int %s_len = %d;\n' % (name, len(tar_archive))
+  cc_text += '\nconst char* %s = %s_;\n' % (name, name)
+  if inner_namespace != None:
+    cc_text += '}  // namespace %s\n' % inner_namespace
+  cc_text += '} // namespace %s\n' % outer_namespace
+
+  open(output_file, 'w').write(cc_text)
+
+def main(args):
+  try:
+    # Parse input.
+    parser = OptionParser()
+    parser.add_option("--output",
+                      action="store", type="string",
+                      help="output file name")
+    parser.add_option("--tar_output",
+                      action="store", type="string",
+                      help="tar output file name")
+    parser.add_option("--outer_namespace",
+                      action="store", type="string",
+                      help="outer C++ namespace",
+                      default="dart")
+    parser.add_option("--inner_namespace",
+                      action="store", type="string",
+                      help="inner C++ namespace",
+                      default="bin")
+    parser.add_option("--name",
+                      action="store", type="string",
+                      help="name of tar archive symbol")
+    parser.add_option("--client_root",
+                      action="store", type="string",
+                      help="root directory client resources")
+
+    (options, args) = parser.parse_args()
+    if not options.output:
+      sys.stderr.write('--output not specified\n')
+      return -1
+    if not options.tar_output:
+      sys.stderr.write('--tar_output not specified\n')
+      return -1
+    if not options.name:
+      sys.stderr.write('--name not specified\n')
+      return -1
+    if not options.client_root:
+      sys.stderr.write('--client_root not specified')
+      return -1
+
+    files = [ ]
+
+    for dirname, dirnames, filenames in os.walk(options.client_root):
+      # strip out all dot files.
+      filenames = [f for f in filenames if not f[0] == '.']
+      dirnames[:] = [d for d in dirnames if not d[0] == '.']
+      for f in filenames:
+        src_path = os.path.join(dirname, f)
+        if (os.path.isdir(src_path)):
+            continue
+        files.append(src_path)
+
+    # Write out archive.
+    makeArchive(options.tar_output, options.client_root, files)
+
+    # Read it back in.
+    with open(options.tar_output, 'rb') as tar_file:
+      tar_archive = tar_file.read()
+
+    # Write CC file.
+    writeCCFile(options.output,
+                options.outer_namespace,
+                options.inner_namespace,
+                options.name,
+                tar_archive)
+    return 0
+
+  except Exception, inst:
+    sys.stderr.write('create_resources.py exception\n')
+    sys.stderr.write(str(inst))
+    sys.stderr.write('\n')
+    return -1
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))