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path: root/build/scripts/compile_java.py
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import optparse 
import contextlib 
import os 
import shutil 
import subprocess as sp 
import tarfile 
import zipfile 
import sys
 
 
def parse_args(args):
    parser = optparse.OptionParser() 
    parser.add_option('--javac-bin') 
    parser.add_option('--jar-bin') 
    parser.add_option('--vcs-mf')
    parser.add_option('--package-prefix') 
    parser.add_option('--jar-output') 
    parser.add_option('--srcs-jar-output') 
    return parser.parse_args(args)
 
 
def mkdir_p(directory): 
    if not os.path.exists(directory): 
        os.makedirs(directory) 
 
 
def split_cmd_by_delim(cmd, delim='DELIM'):
    result = [[]]
    for arg in cmd:
        if arg == delim:
            result.append([])
        else:
            result[-1].append(arg)
    return result


def main(): 
    cmd_parts = split_cmd_by_delim(sys.argv)
    assert len(cmd_parts) == 3
    args, javac_opts, peers = cmd_parts
    opts, jsrcs = parse_args(args)
 
    jsrcs += list(filter(lambda x: x.endswith('.jsrc'), peers))
    peers = list(filter(lambda x: not x.endswith('.jsrc'), peers))

    sources_dir = 'src' 
    mkdir_p(sources_dir) 
    for s in jsrcs: 
        if s.endswith('.jsrc'): 
            with contextlib.closing(tarfile.open(s, 'r')) as tf: 
                tf.extractall(sources_dir) 
 
    srcs = [] 
    for r, _, files in os.walk(sources_dir): 
        for f in files: 
            srcs.append(os.path.join(r, f)) 
    srcs += jsrcs
    srcs = list(filter(lambda x: x.endswith('.java'), srcs))
 
    classes_dir = 'cls' 
    mkdir_p(classes_dir) 
    classpath = os.pathsep.join(peers)
 
    if srcs: 
        temp_sources_file = 'temp.sources.list'
        with open(temp_sources_file, 'w') as ts:
            ts.write(' '.join(srcs))
        sp.check_call([opts.javac_bin, '-nowarn', '-g', '-classpath', classpath, '-encoding', 'UTF-8', '-d', classes_dir] + javac_opts + ['@' + temp_sources_file])
 
    for s in jsrcs: 
        if s.endswith('-sources.jar'): 
            with zipfile.ZipFile(s) as zf: 
                zf.extractall(sources_dir) 
 
        elif s.endswith('.jar'): 
            with zipfile.ZipFile(s) as zf: 
                zf.extractall(classes_dir) 
 
    if opts.vcs_mf:
        sp.check_call([opts.jar_bin, 'cfm', opts.jar_output, opts.vcs_mf, os.curdir], cwd=classes_dir)
    else:
        sp.check_call([opts.jar_bin, 'cfM', opts.jar_output, os.curdir], cwd=classes_dir)
 
    if opts.srcs_jar_output: 
        for s in jsrcs: 
            if s.endswith('.java'): 
                if opts.package_prefix: 
                    d = os.path.join(sources_dir, *(opts.package_prefix.split('.') + [os.path.basename(s)])) 
 
                else: 
                    d = os.path.join(sources_dir, os.path.basename(s)) 
 
                shutil.copyfile(s, d) 
 
        if opts.vcs_mf:
            sp.check_call([opts.jar_bin, 'cfm', opts.srcs_jar_output, opts.vcs_mf, os.curdir], cwd=sources_dir)
        else:
            sp.check_call([opts.jar_bin, 'cfM', opts.srcs_jar_output, os.curdir], cwd=sources_dir)
 
 
if __name__ == '__main__': 
    main()