remove unused files from buck-tools

Change-Id: Ia0858a89a47b338c1593a8806b17d291f1897ea3

 python_binary(
 python_binary(
-  name = 'download_file',
-  main = 'download_file.py',
-  deps = [':util'],
-  visibility = ['PUBLIC'],
-)
-
-python_binary(
   name = 'onos-app-writer',
   name = 'onos-app-writer',
   main = 'onos_app.py',
   main = 'onos_app.py',
   deps = [],
   deps = [],
@@ -33,22 +26,6 @@ python_binary(
   visibility = ['PUBLIC'],
   visibility = ['PUBLIC'],
 )
 )
 
 
-python_binary(
-  name = 'pack_war',
-  main = 'pack_war.py',
-  deps = [':util'],
-  visibility = ['PUBLIC'],
-)
-
-python_library(
-  name = 'util',
-  srcs = [
-    'util.py',
-    '__init__.py'
-  ],
-  visibility = ['PUBLIC'],
-)
-
 def shquote(s):
 def shquote(s):
   return s.replace("'", "'\\''")
   return s.replace("'", "'\\''")
 
 

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-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration" value="end_of_line"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer" value="do not insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer" value="end_of_line"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement" value="do not insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="2"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk" value="1"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_binary_operator" value="insert"/>
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-<setting id="org.eclipse.jdt.core.compiler.source" value="1.7"/>
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-<setting id="org.eclipse.jdt.core.formatter.comment.format_line_comments" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations" value="insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.align_type_members_on_columns" value="false"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for" value="do not insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch" value="do not insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch" value="do not insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment" value="false"/>
-<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="80"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration" value="insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.indentation.size" value="4"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration" value="16"/>
-<setting id="org.eclipse.jdt.core.formatter.alignment_for_assignment" value="16"/>
-<setting id="org.eclipse.jdt.core.compiler.problem.assertIdentifier" value="error"/>
-<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_imports" value="0"/>
-<setting id="org.eclipse.jdt.core.formatter.comment.format_html" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration" value="16"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.comment.format_source_code" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_throws" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration" value="16"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.compiler.codegen.targetPlatform" value="1.7"/>
-<setting id="org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations" value="false"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_member" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.comment.format_header" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.comment.format_block_comments" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants" value="16"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/>
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-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
-<setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/>
-<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert"/>
-<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
-<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/>
-</profile>
-</profiles>

-#!/usr/bin/env python
-# Copyright (C) 2013 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from optparse import OptionParser
-import re
-from subprocess import check_call, CalledProcessError, Popen, PIPE
-
-MAIN = ['//buck-tools/eclipse:classpath']
-PAT = re.compile(r'"(//.*?)" -> "//buck-tools:download_file"')
-# TODO(davido): Remove this hack when Buck bugs are fixed:
-# https://github.com/facebook/buck/issues/656
-# https://github.com/facebook/buck/issues/658
-JGIT = re.compile(r'//org.eclipse.jgit.*')
-CELL = '//lib/jgit'
-
-opts = OptionParser()
-opts.add_option('--src', action='store_true')
-args, _ = opts.parse_args()
-
-targets = set()
-
-p = Popen(['buck', 'audit', 'classpath', '--dot'] + MAIN, stdout = PIPE)
-for line in p.stdout:
-  m = PAT.search(line)
-  if m:
-    n = m.group(1)
-    if JGIT.match(n):
-      n = CELL + n[1:]
-    if args.src and n.endswith('__download_bin'):
-      n = n[:-13] + 'src'
-    targets.add(n)
-r = p.wait()
-if r != 0:
-  exit(r)
-
-try:
-  check_call(['buck', 'build'] + sorted(targets))
-except CalledProcessError as err:
-  exit(1)

-#!/usr/bin/env python
-# Copyright (C) 2013 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from __future__ import print_function
-
-from hashlib import sha1
-from optparse import OptionParser
-from os import link, makedirs, path, remove
-import shutil
-from subprocess import check_call, CalledProcessError
-from sys import stderr
-from util import hash_file, resolve_url
-from zipfile import ZipFile, BadZipfile, LargeZipFile
-
-GERRIT_HOME = path.expanduser('~/.gerritcodereview')
-CACHE_DIR = path.join(GERRIT_HOME, 'buck-cache', 'downloaded-artifacts')
-# LEGACY_CACHE_DIR is only used to allow existing workspaces to move already
-# downloaded files to the new cache directory.
-# Please remove after 3 months (2015-10-07).
-LEGACY_CACHE_DIR = path.join(GERRIT_HOME, 'buck-cache')
-LOCAL_PROPERTIES = 'local.properties'
-
-
-def safe_mkdirs(d):
-  if path.isdir(d):
-    return
-  try:
-    makedirs(d)
-  except OSError as err:
-    if not path.isdir(d):
-      raise err
-
-
-def download_properties(root_dir):
-  """ Get the download properties.
-
-  First tries to find the properties file in the given root directory,
-  and if not found there, tries in the Gerrit settings folder in the
-  user's home directory.
-
-  Returns a set of download properties, which may be empty.
-
-  """
-  p = {}
-  local_prop = path.join(root_dir, LOCAL_PROPERTIES)
-  if not path.isfile(local_prop):
-    local_prop = path.join(GERRIT_HOME, LOCAL_PROPERTIES)
-  if path.isfile(local_prop):
-    try:
-      with open(local_prop) as fd:
-        for line in fd:
-          if line.startswith('download.'):
-            d = [e.strip() for e in line.split('=', 1)]
-            name, url = d[0], d[1]
-            p[name[len('download.'):]] = url
-    except OSError:
-      pass
-  return p
-
-
-def cache_entry(args):
-  if args.v:
-    h = args.v
-  else:
-    h = sha1(args.u.encode('utf-8')).hexdigest()
-  name = '%s-%s' % (path.basename(args.o), h)
-  return path.join(CACHE_DIR, name)
-
-# Please remove after 3 months (2015-10-07). See LEGACY_CACHE_DIR above.
-def legacy_cache_entry(args):
-  if args.v:
-    h = args.v
-  else:
-    h = sha1(args.u.encode('utf-8')).hexdigest()
-  name = '%s-%s' % (path.basename(args.o), h)
-  return path.join(LEGACY_CACHE_DIR, name)
-
-
-opts = OptionParser()
-opts.add_option('-o', help='local output file')
-opts.add_option('-u', help='URL to download')
-opts.add_option('-v', help='expected content SHA-1')
-opts.add_option('-x', action='append', help='file to delete from ZIP')
-opts.add_option('--exclude_java_sources', action='store_true')
-opts.add_option('--unsign', action='store_true')
-args, _ = opts.parse_args()
-
-root_dir = args.o
-while root_dir:
-  root_dir, n = path.split(root_dir)
-  if n == 'buck-out':
-    break
-
-redirects = download_properties(root_dir)
-cache_ent = cache_entry(args)
-legacy_cache_ent = legacy_cache_entry(args)
-src_url = resolve_url(args.u, redirects)
-
-# Please remove after 3 months (2015-10-07). See LEGACY_CACHE_DIR above.
-if not path.exists(cache_ent) and path.exists(legacy_cache_ent):
-  try:
-    safe_mkdirs(path.dirname(cache_ent))
-  except OSError as err:
-    print('error creating directory %s: %s' %
-          (path.dirname(cache_ent), err), file=stderr)
-    exit(1)
-  shutil.move(legacy_cache_ent, cache_ent)
-
-if not path.exists(cache_ent):
-  try:
-    safe_mkdirs(path.dirname(cache_ent))
-  except OSError as err:
-    print('error creating directory %s: %s' %
-          (path.dirname(cache_ent), err), file=stderr)
-    exit(1)
-
-  print('Download %s' % src_url, file=stderr)
-  try:
-    check_call(['curl', '--proxy-anyauth', '-ksfo', cache_ent, src_url])
-  except OSError as err:
-    print('could not invoke curl: %s\nis curl installed?' % err, file=stderr)
-    exit(1)
-  except CalledProcessError as err:
-    print('error using curl: %s' % err, file=stderr)
-    exit(1)
-
-if args.v:
-  have = hash_file(sha1(), cache_ent).hexdigest()
-  if args.v != have:
-    print((
-      '%s:\n' +
-      'expected %s\n' +
-      'received %s\n') % (src_url, args.v, have), file=stderr)
-    try:
-      remove(cache_ent)
-    except OSError as err:
-      if path.exists(cache_ent):
-        print('error removing %s: %s' % (cache_ent, err), file=stderr)
-    exit(1)
-
-exclude = []
-if args.x:
-  exclude += args.x
-if args.exclude_java_sources:
-  try:
-    with ZipFile(cache_ent, 'r') as zf:
-      for n in zf.namelist():
-        if n.endswith('.java'):
-          exclude.append(n)
-  except (BadZipfile, LargeZipFile) as err:
-    print('error opening %s: %s' % (cache_ent, err), file=stderr)
-    exit(1)
-
-if args.unsign:
-  try:
-    with ZipFile(cache_ent, 'r') as zf:
-      for n in zf.namelist():
-        if (n.endswith('.RSA')
-            or n.endswith('.SF')
-            or n.endswith('.LIST')):
-          exclude.append(n)
-  except (BadZipfile, LargeZipFile) as err:
-    print('error opening %s: %s' % (cache_ent, err), file=stderr)
-    exit(1)
-
-safe_mkdirs(path.dirname(args.o))
-if exclude:
-  try:
-    shutil.copyfile(cache_ent, args.o)
-  except (shutil.Error, IOError) as err:
-    print('error copying to %s: %s' % (args.o, err), file=stderr)
-    exit(1)
-  try:
-    check_call(['zip', '-d', args.o] + exclude)
-  except CalledProcessError as err:
-    print('error removing files from zip: %s' % err, file=stderr)
-    exit(1)
-else:
-  try:
-    link(cache_ent, args.o)
-  except OSError as err:
-    try:
-      shutil.copyfile(cache_ent, args.o)
-    except (shutil.Error, IOError) as err:
-      print('error copying to %s: %s' % (args.o, err), file=stderr)
-      exit(1)

-def java_doc(
-    name,
-    title,
-    pkgs,
-    paths,
-    srcs = [],
-    deps = [],
-    visibility = [],
-    do_it_wrong = False,
-  ):
-  if do_it_wrong:
-    sourcepath = paths
-  else:
-    sourcepath = ['$SRCDIR/' + n for n in paths]
-  genrule(
-    name = name,
-    cmd = ' '.join([
-      'while ! test -f .buckconfig; do cd ..; done;',
-      'javadoc',
-      '-quiet',
-      '-protected',
-      '-encoding UTF-8',
-      '-charset UTF-8',
-      '-notimestamp',
-      '-windowtitle "' + title + '"',
-      '-link http://docs.oracle.com/javase/7/docs/api',
-      '-subpackages ',
-      ':'.join(pkgs),
-      '-sourcepath ',
-      ':'.join(sourcepath),
-      ' -classpath ',
-      ':'.join(['$(classpath %s)' % n for n in deps]),
-      '-d $TMP',
-    ]) + ';jar cf $OUT -C $TMP .',
-    srcs = srcs,
-    out = name + '.jar',
-    visibility = visibility,
-)

-#!/usr/bin/env python
-# Copyright (C) 2013 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from __future__ import print_function
-from optparse import OptionParser
-from os import makedirs, path, symlink
-from subprocess import check_call
-import sys
-
-opts = OptionParser()
-opts.add_option('-o', help='path to write WAR to')
-opts.add_option('--lib', action='append', help='target for WEB-INF/lib')
-opts.add_option('--pgmlib', action='append', help='target for WEB-INF/pgm-lib')
-opts.add_option('--tmp', help='temporary directory')
-args, ctx = opts.parse_args()
-
-war = args.tmp
-jars = set()
-basenames = set()
-
-def prune(l):
-  return [j for e in l for j in e.split(':')]
-
-def link_jars(libs, directory):
-  makedirs(directory)
-  for j in libs:
-    if j not in jars:
-      # When jgit is consumed from its own cell,
-      # potential duplicates should be filtered.
-      # e.g. jsch.jar will be reached through:
-      # 1. /home/username/projects/gerrit/buck-out/gen/lib/jsch.jar
-      # 2. /home/username/projects/jgit/buck-out/gen/lib/jsch.jar
-      if (j.find('jgit/buck-out/gen/lib') > 0
-          and path.basename(j) in basenames):
-          continue
-      jars.add(j)
-      n = path.basename(j)
-      if j.find('buck-out/gen/gerrit-') > 0:
-        n = j[j.find('buck-out'):].split('/')[2] + '-' + n
-      basenames.add(n)
-      symlink(j, path.join(directory, n))
-
-if args.lib:
-  link_jars(prune(args.lib), path.join(war, 'WEB-INF', 'lib'))
-if args.pgmlib:
-  link_jars(prune(args.pgmlib), path.join(war, 'WEB-INF', 'pgm-lib'))
-try:
-  for s in ctx:
-    check_call(['unzip', '-q', '-d', war, s])
-  check_call(['zip', '-9qr', args.o, '.'], cwd=war)
-except KeyboardInterrupt:
-  print('Interrupted by user', file=sys.stderr)
-  exit(1)

-# Copyright (C) 2013 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import os
-from os import path
-
-REPO_ROOTS = {
-  'GERRIT': 'http://gerrit-maven.storage.googleapis.com',
-  'GERRIT_API': 'https://gerrit-api.commondatastorage.googleapis.com/release',
-  'MAVEN_CENTRAL': 'http://repo1.maven.org/maven2',
-  'MAVEN_LOCAL': 'file://' + path.expanduser('~/.m2/repository'),
-}
-
-
-def resolve_url(url, redirects):
-  """ Resolve URL of a Maven artifact.
-
-  prefix:path is passed as URL. prefix identifies known or custom
-  repositories that can be rewritten in redirects set, passed as
-  second arguments.
-
-  A special case is supported, when prefix neither exists in
-  REPO_ROOTS, no in redirects set: the url is returned as is.
-  This enables plugins to pass custom maven_repository URL as is
-  directly to maven_jar().
-
-  Returns a resolved path for Maven artifact.
-  """
-  s = url.find(':')
-  if s < 0:
-    return url
-  scheme, rest = url[:s], url[s+1:]
-  if scheme in redirects:
-    root = redirects[scheme]
-  elif scheme in REPO_ROOTS:
-    root = REPO_ROOTS[scheme]
-  else:
-    return url
-  root = root.rstrip('/')
-  rest = rest.lstrip('/')
-  return '/'.join([root, rest])
-
-
-def hash_file(hash_obj, path):
-  """Hash the contents of a file.
-
-  Args:
-    hash_obj: an open hash object, e.g. hashlib.sha1().
-    path: path to the file to hash.
-
-  Returns:
-    The passed-in hash_obj.
-  """
-  with open(path, 'rb') as f:
-    while True:
-      b = f.read(8192)
-      if not b:
-        break
-      hash_obj.update(b)
-  return hash_obj
-
-
-def hash_bower_component(hash_obj, path):
-  """Hash the contents of a bower component directory.
-
-  This is a stable hash of a directory downloaded with `bower install`, minus
-  the .bower.json file, which is autogenerated each time by bower. Used in lieu
-  of hashing a zipfile of the contents, since zipfiles are difficult to hash in
-  a stable manner.
-
-  Args:
-    hash_obj: an open hash object, e.g. hashlib.sha1().
-    path: path to the directory to hash.
-
-  Returns:
-    The passed-in hash_obj.
-  """
-  if not os.path.isdir(path):
-    raise ValueError('Not a directory: %s' % path)
-
-  path = os.path.abspath(path)
-  for root, dirs, files in os.walk(path):
-    dirs.sort()
-    for f in sorted(files):
-      if f == '.bower.json':
-        continue
-      p = os.path.join(root, f)
-      hash_obj.update(p[len(path)+1:])
-      hash_file(hash_obj, p)
-
-  return hash_obj