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#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import subprocess
import sys
import tempfile
import time
def find_dominating_file(dir, file):
"""Find directory containing file."""
if os.path.exists(os.path.join(dir, file)):
return dir
return find_dominating_file(os.path.dirname(dir), file)
def get_gradle_command(dir):
"""Find top-project gradlew or fallback to using gradle on sub-project dir."""
topdir = find_dominating_file(dir, 'gradlew')
if topdir:
return [os.path.join(topdir, 'gradlew'), '-p', topdir]
topdir = find_dominating_file(dir, 'build.gradle')
if topdir:
return ['gradle', '-p', topdir]
return ['gradle']
def filter_source_files(files):
"""Remove any item not looking like a Java source file."""
return [f for f in files if f.endswith('.java')]
def run_javac(encoding, source, target, bootcp, cp, files, output, args,
sourcefile):
"""Execute javac with the given options."""
command = ['javac']
if encoding:
command.extend(['-encoding', encoding])
if source:
command.extend(['-source', source])
if target:
command.extend(['-target', target])
if bootcp:
command.extend(['-bootclasspath', bootcp])
if cp:
command.extend(['-cp', ':'.join(cp)])
if output:
command.extend(['-d', output])
command.extend(args)
command.append(sourcefile)
with tempfile.NamedTemporaryFile(mode='w') as f:
command.append('@' + f.name)
for source in filter_source_files(files):
f.write(source)
f.write('\n')
f.flush()
return subprocess.call(command)
def file_in_list(needle, files):
"""Find needle in files and if so, return the list without needle.
Otherwise return None."""
for i in range(0, len(files) - 1):
if os.path.samefile(needle, files[i]):
return files[0:i] + files[i + 1:]
return None
def figure_out_java_compilation(sourcefile, tempfile):
"""Get options for Java compilation from gradle project and run javac."""
cmd = get_gradle_command(os.path.dirname(sourcefile))
cmd.extend(['-q', 'flycheckAndroidJava'])
output = subprocess.check_output(cmd, universal_newlines=True).split('\n')
data = None
for line in output:
if line == '***':
if data:
files = file_in_list(sourcefile, data['files'])
if files:
return run_javac(data['encoding'], data['source'],
data['target'], data['bootcp'],
data['cp'], files, data['output'],
data['args'], tempfile)
data = {}
elif data != None:
if line.startswith('args='):
data['args'] = line[6:-1].split(', ')
elif line.startswith('encoding='):
data['encoding'] = line[9:]
elif line.startswith('bootcp='):
data['bootcp'] = line[7:]
elif line.startswith('cp='):
data['cp'] = line[3:].split(':')
elif line.startswith('source='):
data['source'] = line[7:]
elif line.startswith('target='):
data['target'] = line[7:]
elif line.startswith('files='):
data['files'] = line[6:].split(':')
elif line.startswith('output='):
data['output'] = line[7:]
if data:
files = file_in_list(sourcefile, data['files'])
if files:
return run_javac(data['encoding'], data['source'], data['target'],
data['bootcp'], data['cp'], files, data['output'],
data['args'], tempfile)
return 0
if len(sys.argv) == 3:
sys.exit(figure_out_java_compilation(os.path.abspath(sys.argv[1]),
sys.argv[2]))
elif len(sys.argv) == 2:
sys.exit(figure_out_java_compilation(os.path.abspath(sys.argv[1]),
sys.argv[1]))
else:
sys.exit(-1)
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