| #!/usr/bin/env python |
| """Java 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 |
| from os.path import abspath, exists, dirname |
| import os, sys, codecs, subprocess, shutil, logging |
| |
| def copy(src, dst): |
| with codecs.open(src, 'r', 'utf-8') as s: |
| body = s.read() |
| with codecs.open(dst, 'w', 'utf-8') as d: |
| d.write(body) |
| |
| def find_with_ext(basedir, ext): |
| result = [] |
| for root, _, files in os.walk(basedir, topdown=False): |
| for name in files: |
| if name.endswith(ext): |
| result.append(os.path.join(root,name)) |
| return result |
| |
| def javac(sources, classpath, target_dir): |
| cmd = [ "javac", |
| "-encoding", "UTF-8", |
| "-cp", ":".join(classpath), |
| "-d", target_dir |
| ]+sources |
| #print(cmd) |
| logging.info(" ".join(cmd)) |
| p = subprocess.Popen(cmd, |
| stdout=subprocess.PIPE, |
| stderr=subprocess.PIPE) |
| (o, e) = p.communicate() |
| if isinstance(o, bytes) and not isinstance(o, str): |
| o = o.decode('utf-8') |
| if isinstance(e, bytes) and not isinstance(e, str): |
| e = e.decode('utf-8') |
| ok = True |
| if o: |
| ok = False |
| sys.stdout.write(o) |
| sys.stdout.flush() |
| if e: |
| ok = False |
| sys.stderr.write(e) |
| sys.stderr.flush() |
| return ok |
| |
| def build(source_dir, classpath, target_dir, mainClass): |
| |
| # copy exec to <main>.java if it is there |
| src = "%s/exec" % source_dir |
| if os.path.isfile(src): |
| main_java = "%s/%s.java" % (source_dir, mainClass.split(".")[-1]) |
| copy(src,main_java) |
| logging.info("renamed exec to %s", main_java) |
| |
| # look for sources and compile |
| sources = find_with_ext(source_dir, ".java") |
| if len(sources) > 0: |
| jars = find_with_ext(source_dir, ".jar") |
| logging.info("compiling %d sources with %d jars", len(sources),len(jars)) |
| return javac(sources, classpath+jars, source_dir) |
| |
| return True |
| |
| def write_exec(target_dir, classpath, main): |
| launcher = "%s/exec" % target_dir |
| jars = find_with_ext(target_dir, ".jar") |
| jars.append(target_dir) |
| cmd = """#!/bin/bash |
| cd "%s" |
| /opt/java/openjdk/bin/java -Dfile.encoding=UTF-8 -cp "%s" Launcher "%s" "$@" |
| """ %( target_dir, ":".join(classpath+jars), main) |
| with codecs.open(launcher, 'w', 'utf-8') as d: |
| d.write(cmd) |
| os.chmod(launcher, 0o755) |
| |
| def parseMain(main): |
| if main == "main": |
| return "Main", "main" |
| a = main.split("#") |
| if(len(a)==1): |
| return a[0], "main" |
| return a[0], a[1] |
| |
| def assemble(argv): |
| mainClass, mainMethod = parseMain(argv[1]) |
| logging.info("%s %s", mainClass, mainMethod) |
| source_dir = os.path.abspath(argv[2]) |
| target_dir = os.path.abspath(argv[3]) |
| classpath = ["/usr/java/lib/launcher.jar", "/usr/java/lib/gson-2.8.5.jar"] |
| |
| # build |
| if build(source_dir, classpath, target_dir, mainClass): |
| shutil.rmtree(target_dir) |
| shutil.move(source_dir, target_dir) |
| logging.info("moved %s to %s", source_dir, target_dir) |
| # write the launcher is it is there |
| write_exec(target_dir, classpath, "%s#%s" % (mainClass, mainMethod)) |
| # launch it to check it can load with immediate exit - it should not produce any output |
| subprocess.call(["%s/exec" % target_dir, "-exit"]) |
| |
| sys.stdout.flush() |
| sys.stderr.flush() |
| |
| if __name__ == '__main__': |
| if len(sys.argv) < 4: |
| sys.stdout.write("usage: <main-class> <source-dir> <target-dir>\n") |
| sys.exit(1) |
| logging.basicConfig(filename="/var/log/compile.log") |
| assemble(sys.argv) |