| #!/usr/bin/python |
| """Golang Action Compiler |
| # |
| # 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. |
| # |
| """ |
| |
| import os |
| import re |
| import sys |
| import codecs |
| import subprocess |
| |
| def sources(launcher, source_dir, main): |
| |
| func = main.capitalize() |
| has_main = None |
| |
| # copy the exec to exec.go |
| # also check if it has a main in it |
| src = "%s/exec" % source_dir |
| dst = "%s/exec__.go" % source_dir |
| if os.path.isfile(src): |
| with codecs.open(src, 'r', 'utf-8') as s: |
| with codecs.open(dst, 'w', 'utf-8') as d: |
| body = s.read() |
| has_main = re.match(r".*package\s+main\W.*func\s+main\s*\(\s*\)", body, flags=re.DOTALL) |
| d.write(body) |
| |
| # copy the launcher fixing the main |
| if not has_main: |
| dst = "%s/main__.go" % source_dir |
| if os.path.isdir("%s/main" % source_dir): |
| dst = "%s/main/main__.go" % source_dir |
| with codecs.open(dst, 'w', 'utf-8') as d: |
| with codecs.open(launcher, 'r', 'utf-8') as e: |
| code = e.read() |
| code = code.replace("Main", func) |
| d.write(code) |
| |
| def build(parent, source_dir, target): |
| # compile... |
| env = { |
| "PATH": os.environ["PATH"], |
| "GOPATH": os.path.abspath(parent), |
| "GOCACHE": "/tmp", |
| "GO111MODULE": "off" |
| } |
| if os.path.isdir("%s/main" % source_dir): |
| source_dir += "/main" |
| p = subprocess.Popen( |
| ["go", "build", "-ldflags=-s -w", "-o", target], |
| stdout=subprocess.PIPE, |
| stderr=subprocess.PIPE, |
| cwd=source_dir, |
| env=env) |
| (o, e) = p.communicate() |
| |
| # stdout/stderr may be either text or bytes, depending on Python |
| # version, so if bytes, decode to text. Note that in Python 2 |
| # a string will match both types; so also skip decoding in that case |
| 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') |
| |
| # remove the comments mentioning the folder in order to normalize output |
| o = re.sub(r"# .*\n", "", o, flags=re.MULTILINE) |
| e = re.sub(r"# .*\n", "", e, flags=re.MULTILINE) |
| |
| if o: |
| sys.stdout.write(o) |
| sys.stdout.flush() |
| |
| if e: |
| sys.stderr.write(e) |
| sys.stderr.flush() |
| |
| def main(argv): |
| if len(argv) < 4: |
| print("usage: <main-file> <source-dir> <target-dir>") |
| sys.exit(1) |
| |
| main = argv[1] |
| source_dir = argv[2] |
| target_dir = argv[3] |
| |
| parent = os.path.dirname(os.path.abspath(source_dir)) |
| target = os.path.abspath("%s/exec" % target_dir) |
| |
| sources(argv[0]+".launcher.go", source_dir, main) |
| build(parent, source_dir, target) |
| |
| if __name__ == '__main__': |
| main(sys.argv) |