Convert java library javac/jar to python

build/android/javac.py

+#!/usr/bin/env python
+#
+# Copyright 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 fnmatch
+import optparse
+import os
+import subprocess
+import sys
+
+from pylib import build_utils
+
+def DoJavac(options):
+  output_dir = options.output_dir
+
+  src_dirs = build_utils.ParseGypList(options.src_dirs)
+  java_files = build_utils.FindInDirectories(src_dirs, '*.java')
+  if options.javac_includes:
+    javac_includes = build_utils.ParseGypList(options.javac_includes)
+    filtered_java_files = []
+    for f in java_files:
+      for include in javac_includes:
+        if fnmatch.fnmatch(f, include):
+          filtered_java_files.append(f)
+          break
+    java_files = filtered_java_files
+
+  # Compiling guava with certain orderings of input files causes a compiler
+  # crash... Sorted order works, so use that.
+  # See https://code.google.com/p/guava-libraries/issues/detail?id=950
+  java_files.sort()
+
+  classpath = build_utils.ParseGypList(options.classpath)
+
+  # Delete the classes directory. This ensures that all .class files in the
+  # output are actually from the input .java files. For example, if a .java
+  # file is deleted or an inner class is removed, the classes directory should
+  # not contain the corresponding old .class file after running this action.
+  build_utils.DeleteDirectory(output_dir)
+  build_utils.MakeDirectory(output_dir)
+
+  subprocess.check_call([
+      'javac',
+      '-g',
+      '-Xlint:unchecked',
+      '-source', '1.5',
+      '-target', '1.5',
+      '-classpath', ':'.join(classpath),
+      '-d', output_dir] +
+      java_files)
+
+
+def main(argv):
+  parser = optparse.OptionParser()
+  parser.add_option('--src-dirs', help='Directories containing java files.')
+  parser.add_option('--javac-includes',
+      help='A list of file patterns. If provided, only java files that match' +
+        'one of the patterns will be compiled.')
+  parser.add_option('--classpath', help='Classpath for javac.')
+  parser.add_option('--output-dir', help='Directory for javac output.')
+  parser.add_option('--stamp', help='Path to touch on success.')
+
+  # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
+  parser.add_option('--ignore', help='Ignored.')
+
+  options, _ = parser.parse_args()
+
+  DoJavac(options)
+
+  if options.stamp:
+    build_utils.Touch(options.stamp)
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
+
+