[NaCl SDK] Make the SDK examples buildable as a packaged app.

native_client_sdk/src/build_tools/build_app.py

Index: native_client_sdk/src/build_tools/build_app.py
diff --git a/native_client_sdk/src/build_tools/build_app.py b/native_client_sdk/src/build_tools/build_app.py
new file mode 100755
index 0000000000000000000000000000000000000000..d90fdffc799ccd31817007c644b299b1016429e0
--- /dev/null
+++ b/native_client_sdk/src/build_tools/build_app.py
@@ -0,0 +1,147 @@
+#!/usr/bin/env python
+# Copyright (c) 2013 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 optparse
+import os
+import re
+import sys
+
+if sys.version_info < (2, 6, 0):
+  sys.stderr.write("python 2.6 or later is required run this script\n")
+  sys.exit(1)
+
+import buildbot_common
+import build_sdk
+import build_utils
+import easy_template
+import generate_make
+
+sys.path.append(os.path.join(build_sdk.SDK_SRC_DIR, 'tools'))
+import getos
+import oshelpers
+
+# HACK: A few examples don't work properly as a packaged app right now.
+EXAMPLE_LIST = [
+#  'debugging',
+  'dlopen',
+  'file_histogram',
+  'file_io',
+  'gamepad',
+  'geturl',
+  'hello_nacl_io',
+  'hello_world_stdio',
+  'hello_world',
+  'hello_world_gles',
+#  'hello_world_instance3d',
+  'hello_world_interactive',
+  'input_events',
+  'load_progress',
+#  'mouselock',
+  'pi_generator',
+  'sine_synth',
+  'websocket',
+]
+
+
+def GenerateMake(outdir, toolchains):
+  args = ['--dstroot=%s' % outdir, '--master', '--config=Release',
+          '--first-valid-toolchain']
+  for toolchain in toolchains:
+    args.append('--' + toolchain)
+
+  for example in EXAMPLE_LIST:
+    dsc = os.path.join(build_sdk.SDK_EXAMPLE_DIR, example, 'example.dsc')
+    args.append(dsc)
+
+  print "Generating Makefiles: %s" % str(args)
+  if generate_make.main(args):
+    buildbot_common.ErrorExit('Failed to build examples.')
+
+
+def RemoveBuildCruft(outdir):
+  for root, _, files in os.walk(outdir):
+    for f in files:
+      path = os.path.join(root, f)
+      ext = os.path.splitext(path)[1]
+      if ext in ('.d', '.o'):
+        buildbot_common.RemoveFile(path)
+      elif f == 'dir.stamp':
+        buildbot_common.RemoveFile(path)
+
+
+def StripNexes(outdir, platform, pepperdir):
+  for root, _, files in os.walk(outdir):
+    for f in files:
+      path = os.path.join(root, f)
+      m = re.search(r'lib(32|64).*\.so', path)
+      arch = None
+      if m:
+        # System .so file. Must be x86, because ARM doesn't support glibc yet.
+        arch = 'x86_' + m.group(1)
+      else:
+        basename, ext = os.path.splitext(f)
+        if ext in ('.nexe', '.so'):
+          # We can get the arch from the filename...
+          valid_arches = ('x86_64', 'x86_32', 'arm')
+          for a in valid_arches:
+            if basename.endswith(a):
+              arch = a
+              break
+      if not arch:
+        continue
+
+      strip = GetStrip(pepperdir, platform, arch, 'newlib')
+      buildbot_common.Run([strip, path])
+
+
+def GetStrip(pepperdir, platform, arch, toolchain):
+  base_arch = {'x86_32': 'x86', 'x86_64': 'x86', 'arm': 'arm'}[arch]
+  bin_dir = os.path.join(pepperdir, 'toolchain',
+                         '%s_%s_%s' % (platform, base_arch, toolchain), 'bin')
+  strip_prefix = {'x86_32': 'i686', 'x86_64': 'x86_64', 'arm': 'arm'}[arch]
+  strip_name = '%s-nacl-strip' % strip_prefix
+  return os.path.join(bin_dir, strip_name)
+
+
+def main(args):
+  parser = optparse.OptionParser()
+  _, args = parser.parse_args(args[1:])
+
+  toolchains = ['newlib', 'glibc']
+
+  pepper_ver = str(int(build_utils.ChromeMajorVersion()))
+  pepperdir = os.path.join(build_sdk.OUT_DIR, 'pepper_' + pepper_ver)
+  app_dir = os.path.join(build_sdk.OUT_DIR, 'naclsdk_app')
+  app_examples_dir = os.path.join(app_dir, 'examples')
+  sdk_resources_dir = os.path.join(build_sdk.SDK_EXAMPLE_DIR, 'resources')
+  platform = getos.GetPlatform()
+
+  buildbot_common.RemoveDir(app_dir)
+  buildbot_common.MakeDir(app_dir)
+  GenerateMake(app_dir, toolchains)
+
+  easy_template.RunTemplateFile(
+      os.path.join(sdk_resources_dir, 'manifest.json.template'),
+      os.path.join(app_examples_dir, 'manifest.json'),
+      {'version': build_utils.ChromeVersionNoTrunk()})
+  buildbot_common.CopyFile(os.path.join(sdk_resources_dir, 'background.js'),
+                           os.path.join(app_examples_dir, 'background.js'))
+
+  os.environ['NACL_SDK_ROOT'] = pepperdir
+  build_sdk.BuildStepMakeAll(app_dir, platform, 'examples', 'Build Examples',
+      False, False, 'Release')
+
+  RemoveBuildCruft(app_dir)
+  StripNexes(app_dir, platform, pepperdir)
+
+  app_zip = os.path.join(app_dir, 'examples.zip')
+  os.chdir(app_examples_dir)
+  oshelpers.Zip([app_zip, '-r', '*'])
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))