| #!/usr/bin/env python3 |
| """Python Action Builder |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You 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 |
| import os, sys, codecs, shutil |
| from os.path import abspath, exists, dirname |
| |
| # write a file creating intermediate directories |
| def write_file(file, body, executable=False): |
| os.makedirs(dirname(file), mode=0o755, exist_ok=True) |
| with open(file, mode="w", encoding="utf-8") as f: |
| f.write(body) |
| if executable: |
| os.chmod(file, 0o755) |
| |
| # copy a file eventually replacing a substring |
| def copy_replace(src, dst, match=None, replacement=""): |
| with codecs.open(src, 'r', 'utf-8') as s: |
| body = s.read() |
| if match: |
| body = body.replace(match, replacement) |
| write_file(dst, body) |
| |
| # assemble sources |
| def sources(launcher, main, src_dir): |
| # move exec in the right place if exists |
| src_file = "%s/exec" % src_dir |
| if exists(src_file): |
| copy_replace(src_file, "%s/main__.rb" % src_dir) |
| |
| # move main.rb in the right place if it exists |
| src_file = "%s/main.rb" % src_dir |
| if exists(src_file): |
| copy_replace(src_file, "%s/main__.rb" % src_dir) |
| |
| # write the boilerplate in a temp dir |
| copy_replace(launcher, "%s/exec__.rb" % src_dir, |
| "res = main(payload)", |
| "res = %s(payload)" % main ) |
| |
| # compile sources |
| def build(src_dir, tgt_dir): |
| # in general, compile your program into an executable format |
| # for scripting languages, move sources and create a launcher |
| # move away the action dir and replace with the new |
| shutil.rmtree(tgt_dir) |
| shutil.move(src_dir, tgt_dir) |
| write_file("%s/exec" % tgt_dir, """#!/bin/sh |
| cd "$(dirname $0)" |
| exec /usr/local/bin/ruby exec__.rb |
| """) |
| |
| if __name__ == '__main__': |
| if len(sys.argv) < 4: |
| sys.stdout.write("usage: <main-function> <source-dir> <target-dir>\n") |
| sys.stdout.flush() |
| sys.exit(1) |
| launcher = "%s/lib/launcher.rb" % dirname(dirname(sys.argv[0])) |
| sources(launcher, sys.argv[1], abspath(sys.argv[2])) |
| build(abspath(sys.argv[2]), abspath(sys.argv[3])) |
| sys.stdout.flush() |
| sys.stderr.flush() |