GN(android): Add scripts & runtime logic for installing _managed apks

build/android/gyp/create_managed_install_script.py

Index: build/android/gyp/create_managed_install_script.py
diff --git a/build/android/gyp/create_managed_install_script.py b/build/android/gyp/create_managed_install_script.py
new file mode 100755
index 0000000000000000000000000000000000000000..2ccfba7cd09765740781ecab20fce586e9c1ac15
--- /dev/null
+++ b/build/android/gyp/create_managed_install_script.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+# Copyright 2015 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.
+
+"""Creates a script to run a "_managed" .apk."""
+
+import argparse
+import os
+import sys
+
+from util import build_utils
+
+
+SCRIPT_TEMPLATE = """\
+#!/usr/bin/env python
+#
+# This file was generated by build/android/gyp/create_managed_install_script.py
+
+import os
+import subprocess
+import sys
+
+def main():
+  script_directory = os.path.dirname(__file__)
+
+  def resolve_path(path):
+    return os.path.abspath(os.path.join(script_directory, path))
+
+  cmd_path = resolve_path({cmd_path})
+  cmd_args = [cmd_path] + {cmd_args}
+  cmd_path_args = {cmd_path_args}
+  for arg, path in cmd_path_args:
+    if arg:
+      cmd_args.append(arg)
+    cmd_args.append(resolve_path(path))
+
+  return subprocess.call(cmd_args + sys.argv[1:])
+
+if __name__ == '__main__':
+  sys.exit(main())
+"""
+
+
+def main(args):
+  args = build_utils.ExpandFileArgs(args)
+  parser = argparse.ArgumentParser()
+  build_utils.AddDepfileOption(parser)
+  parser.add_argument('--script-output-path',
+                      help='Output path for executable script.',
+                      required=True)
+  parser.add_argument('--apk-path',
+                      help='Path to the .apk to install.',
+                      required=True)
+  parser.add_argument('--split',
+                      action='append',
+                      dest='splits',
+                      default=[],
+                      help='A glob matching the apk splits. '
+                           'Can be specified multiple times.')
+  parser.add_argument('--lib-dir',
+                      help='Path to native libraries directory.')
+
+  options = parser.parse_args(args)
+
+  def relativize(path):

[jbudorick, 2015/08/23 02:01:28]

Why relative paths?

[agrieve, 2015/08/26 00:22:39]

It's copied from create_test_runner_script.py. I'd guess the reason is to
transform relative input paths into relative paths to a known point. 
They end up as absolute paths when they finally get to the
install_incremental.py script, so might be overcomplicating things to resolve
them in the generated script.
Still, it does make it a bit more portable to not have absolute paths in files,
so I like it for this reason.

+    return os.path.relpath(path, os.path.dirname(options.script_output_path))
+
+  managed_install_path = os.path.join(
+      os.path.dirname(__file__), os.path.pardir, 'managed_install.py')

[jbudorick, 2015/08/23 02:01:28]

Should use constants.DIR_SOURCE_ROOT:
https://code.google.com/p/chromium/codesearch#chromium/src/build/android/pyli...

[agrieve, 2015/08/26 00:22:39]

Done.

+  managed_install_path = relativize(managed_install_path)
+
+  managed_install_path_args = [
+      (None, relativize(options.apk_path)),
+  ]
+  if options.lib_dir:
+      managed_install_path_args.append(
+          ('--lib-dir', relativize(options.lib_dir)))
+  for split_arg in options.splits:
+    managed_install_path_args.append(('--split', relativize(split_arg)))
+
+  with open(options.script_output_path, 'w') as script:
+    script.write(SCRIPT_TEMPLATE.format(
+        cmd_path=repr(managed_install_path),
+        cmd_args='[]',
+        cmd_path_args=repr(managed_install_path_args)))
+
+  os.chmod(options.script_output_path, 0750)
+
+  if options.depfile:
+    build_utils.WriteDepfile(
+        options.depfile,
+        build_utils.GetPythonDependencies())
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))