third_party/closure_compiler/runner/build_runner_jar.py

   1 #!/usr/bin/python
   2 # Copyright 2014 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import os
   7 import shutil
   8 import subprocess
   9 import sys
  10 import tempfile
  11
  12
  13 def rel_to_abs(rel_path):
  14   script_path = os.path.dirname(os.path.abspath(__file__))
  15   return os.path.join(script_path, rel_path)
  16
  17
  18 java_bin_path = os.getenv('JAVA_HOME', '')
  19 if java_bin_path:
  20   java_bin_path = os.path.join(java_bin_path, 'bin')
  21
  22 main_class = 'org.chromium.closure.compiler.Runner'
  23 jar_name = 'runner.jar'
  24 src_dir = 'src'
  25 closure_jar_relpath = os.path.join('..', 'compiler', 'compiler.jar')
  26 src_path = rel_to_abs(src_dir)
  27
  28
  29 def run_and_communicate(command, error_template):
  30   print >> sys.stderr, command
  31   proc = subprocess.Popen(command, stdout=subprocess.PIPE, shell=True)
  32   proc.communicate()
  33   if proc.returncode:
  34     print >> sys.stderr, error_template % proc.returncode
  35     sys.exit(proc.returncode)
  36
  37
  38 def build_artifacts():
  39   print 'Compiling...'
  40   java_files = []
  41   for root, dirs, files in sorted(os.walk(src_path)):
  42     for file_name in files:
  43       java_files.append(os.path.join(root, file_name))
  44
  45   bin_path = tempfile.mkdtemp()
  46   manifest_file = tempfile.NamedTemporaryFile(mode='wt', delete=False)
  47   try:
  48     manifest_file.write('Class-Path: %s\n' % closure_jar_relpath)
  49     manifest_file.close()
  50     javac_path = os.path.join(java_bin_path, 'javac')
  51     javac_command = '%s -d %s -cp %s %s' % (
  52         javac_path, bin_path, rel_to_abs(closure_jar_relpath),
  53         ' '.join(java_files))
  54     run_and_communicate(javac_command, 'Error: javac returned %d')
  55
  56     print 'Building jar...'
  57     artifact_path = rel_to_abs(jar_name)
  58     jar_path = os.path.join(java_bin_path, 'jar')
  59     jar_command = '%s cvfme %s %s %s -C %s .' % (
  60         jar_path, artifact_path, manifest_file.name, main_class, bin_path)
  61     run_and_communicate(jar_command, 'Error: jar returned %d')
  62   finally:
  63     os.remove(manifest_file.name)
  64     shutil.rmtree(bin_path, True)
  65
  66   print 'Done.'
  67
  68
  69 def show_usage_and_die():
  70   print 'usage: %s' % os.path.basename(__file__)
  71   print 'Builds runner.jar from the %s directory contents' % src_dir
  72   sys.exit(1)
  73
  74
  75 def main():
  76   if len(sys.argv) > 1:
  77     show_usage_and_die()
  78
  79   build_artifacts()
  80
  81
  82 if __name__ == '__main__':
  83   main()