346 lines
11 KiB
Python
346 lines
11 KiB
Python
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#!/usr/bin/env python
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#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# Script which checks Java API compatibility between two revisions of the
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# Java client.
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#
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# Originally sourced from Apache Kudu, which was based on the
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# compatibility checker from the Apache HBase project, but ported to
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# Python for better readability.
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import logging
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import os
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import re
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import shutil
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import subprocess
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import sys
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import urllib2
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try:
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import argparse
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except ImportError:
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sys.stderr.write("Please install argparse, e.g. via `pip install argparse`.")
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sys.exit(2)
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# Various relative paths
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REPO_DIR = os.getcwd()
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def check_output(*popenargs, **kwargs):
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r"""Run command with arguments and return its output as a byte string.
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Backported from Python 2.7 as it's implemented as pure python on stdlib.
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>>> check_output(['/usr/bin/python', '--version'])
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Python 2.6.2
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"""
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process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
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output, _ = process.communicate()
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retcode = process.poll()
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if retcode:
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cmd = kwargs.get("args")
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if cmd is None:
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cmd = popenargs[0]
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error = subprocess.CalledProcessError(retcode, cmd)
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error.output = output
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raise error
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return output
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def get_repo_dir():
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""" Return the path to the top of the repo. """
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dirname, _ = os.path.split(os.path.abspath(__file__))
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return os.path.join(dirname, "../..")
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def get_scratch_dir():
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""" Return the path to the scratch dir that we build within. """
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scratch_dir = os.path.join(get_repo_dir(), "target", "compat-check")
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if not os.path.exists(scratch_dir):
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os.makedirs(scratch_dir)
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return scratch_dir
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def get_java_acc_dir():
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""" Return the path where we check out the Java API Compliance Checker. """
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return os.path.join(get_repo_dir(), "target", "java-acc")
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def clean_scratch_dir(scratch_dir):
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""" Clean up and re-create the scratch directory. """
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if os.path.exists(scratch_dir):
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logging.info("Removing scratch dir %s...", scratch_dir)
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shutil.rmtree(scratch_dir)
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logging.info("Creating empty scratch dir %s...", scratch_dir)
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os.makedirs(scratch_dir)
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def checkout_java_tree(rev, path):
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""" Check out the Java source tree for the given revision into
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the given path. """
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logging.info("Checking out %s in %s", rev, path)
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os.makedirs(path)
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# Extract java source
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subprocess.check_call(["bash", '-o', 'pipefail', "-c",
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("git archive --format=tar %s | " +
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"tar -C \"%s\" -xf -") % (rev, path)],
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cwd=get_repo_dir())
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def get_git_hash(revname):
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""" Convert 'revname' to its SHA-1 hash. """
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return check_output(["git", "rev-parse", revname],
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cwd=get_repo_dir()).strip()
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def get_repo_name():
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"""Get the name of the repo based on the git remote."""
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remotes = check_output(["git", "remote", "-v"],
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cwd=get_repo_dir()).strip().split("\n")
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# Example output:
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# origin https://github.com/apache/hadoop.git (fetch)
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# origin https://github.com/apache/hadoop.git (push)
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remote_url = remotes[0].split("\t")[1].split(" ")[0]
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remote = remote_url.split("/")[-1]
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if remote.endswith(".git"):
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remote = remote[:-4]
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return remote
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def build_tree(java_path):
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""" Run the Java build within 'path'. """
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logging.info("Building in %s...", java_path)
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subprocess.check_call(["mvn", "-DskipTests", "-Dmaven.javadoc.skip=true",
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"package"],
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cwd=java_path)
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def checkout_java_acc(force):
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"""
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Check out the Java API Compliance Checker. If 'force' is true, will
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re-download even if the directory exists.
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"""
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acc_dir = get_java_acc_dir()
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if os.path.exists(acc_dir):
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logging.info("Java ACC is already downloaded.")
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if not force:
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return
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logging.info("Forcing re-download.")
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shutil.rmtree(acc_dir)
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logging.info("Downloading Java ACC...")
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url = "https://github.com/lvc/japi-compliance-checker/archive/1.8.tar.gz"
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scratch_dir = get_scratch_dir()
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path = os.path.join(scratch_dir, os.path.basename(url))
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jacc = urllib2.urlopen(url)
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with open(path, 'wb') as w:
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w.write(jacc.read())
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subprocess.check_call(["tar", "xzf", path],
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cwd=scratch_dir)
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shutil.move(os.path.join(scratch_dir, "japi-compliance-checker-1.8"),
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os.path.join(acc_dir))
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def find_jars(path):
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""" Return a list of jars within 'path' to be checked for compatibility. """
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all_jars = set(check_output(["find", path, "-name", "*.jar"]).splitlines())
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return [j for j in all_jars if (
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"-tests" not in j and
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"-sources" not in j and
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"-with-dependencies" not in j)]
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def write_xml_file(path, version, jars):
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"""Write the XML manifest file for JACC."""
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with open(path, "wt") as f:
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f.write("<version>" + version + "</version>\n")
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f.write("<archives>")
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for j in jars:
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f.write(j + "\n")
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f.write("</archives>")
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def run_java_acc(src_name, src_jars, dst_name, dst_jars, annotations):
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""" Run the compliance checker to compare 'src' and 'dst'. """
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logging.info("Will check compatibility between original jars:\n\t%s\n" +
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"and new jars:\n\t%s",
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"\n\t".join(src_jars),
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"\n\t".join(dst_jars))
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java_acc_path = os.path.join(get_java_acc_dir(), "japi-compliance-checker.pl")
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src_xml_path = os.path.join(get_scratch_dir(), "src.xml")
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dst_xml_path = os.path.join(get_scratch_dir(), "dst.xml")
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write_xml_file(src_xml_path, src_name, src_jars)
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write_xml_file(dst_xml_path, dst_name, dst_jars)
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out_path = os.path.join(get_scratch_dir(), "report.html")
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args = ["perl", java_acc_path,
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"-l", get_repo_name(),
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"-d1", src_xml_path,
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"-d2", dst_xml_path,
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"-report-path", out_path]
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if annotations is not None:
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annotations_path = os.path.join(get_scratch_dir(), "annotations.txt")
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with file(annotations_path, "w") as f:
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for ann in annotations:
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print >>f, ann
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args += ["-annotations-list", annotations_path]
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subprocess.check_call(args)
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def filter_jars(jars, include_filters, exclude_filters):
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"""Filter the list of JARs based on include and exclude filters."""
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filtered = []
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# Apply include filters
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for j in jars:
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found = False
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basename = os.path.basename(j)
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for f in include_filters:
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if f.match(basename):
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found = True
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break
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if found:
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filtered += [j]
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else:
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logging.debug("Ignoring JAR %s", j)
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# Apply exclude filters
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exclude_filtered = []
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for j in filtered:
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basename = os.path.basename(j)
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found = False
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for f in exclude_filters:
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if f.match(basename):
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found = True
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break
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if found:
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logging.debug("Ignoring JAR %s", j)
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else:
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exclude_filtered += [j]
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return exclude_filtered
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def main():
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"""Main function."""
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logging.basicConfig(level=logging.INFO)
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parser = argparse.ArgumentParser(
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description="Run Java API Compliance Checker.")
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parser.add_argument("-f", "--force-download",
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action="store_true",
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help="Download dependencies (i.e. Java JAVA_ACC) " +
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"even if they are already present")
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parser.add_argument("-i", "--include-file",
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action="append",
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dest="include_files",
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help="Regex filter for JAR files to be included. " +
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"Applied before the exclude filters. " +
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"Can be specified multiple times.")
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parser.add_argument("-e", "--exclude-file",
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action="append",
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dest="exclude_files",
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help="Regex filter for JAR files to be excluded. " +
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"Applied after the include filters. " +
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"Can be specified multiple times.")
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parser.add_argument("-a", "--annotation",
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action="append",
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dest="annotations",
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help="Fully-qualified Java annotation. " +
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"Java ACC will only check compatibility of " +
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"annotated classes. Can be specified multiple times.")
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parser.add_argument("--skip-clean",
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action="store_true",
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help="Skip cleaning the scratch directory.")
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parser.add_argument("--skip-build",
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action="store_true",
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help="Skip building the projects.")
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parser.add_argument("src_rev", nargs=1, help="Source revision.")
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parser.add_argument("dst_rev", nargs="?", default="HEAD",
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help="Destination revision. " +
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"If not specified, will use HEAD.")
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if len(sys.argv) == 1:
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parser.print_help()
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sys.exit(1)
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args = parser.parse_args()
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src_rev, dst_rev = args.src_rev[0], args.dst_rev
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logging.info("Source revision: %s", src_rev)
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logging.info("Destination revision: %s", dst_rev)
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# Construct the JAR regex patterns for filtering.
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include_filters = []
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if args.include_files is not None:
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for f in args.include_files:
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logging.info("Applying JAR filename include filter: %s", f)
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include_filters += [re.compile(f)]
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else:
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include_filters = [re.compile(".*")]
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exclude_filters = []
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if args.exclude_files is not None:
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for f in args.exclude_files:
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logging.info("Applying JAR filename exclude filter: %s", f)
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exclude_filters += [re.compile(f)]
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# Construct the annotation list
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annotations = args.annotations
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if annotations is not None:
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logging.info("Filtering classes using %d annotation(s):", len(annotations))
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for a in annotations:
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logging.info("\t%s", a)
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# Download deps.
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checkout_java_acc(args.force_download)
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# Set up the build.
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scratch_dir = get_scratch_dir()
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src_dir = os.path.join(scratch_dir, "src")
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dst_dir = os.path.join(scratch_dir, "dst")
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if args.skip_clean:
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logging.info("Skipping cleaning the scratch directory")
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else:
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clean_scratch_dir(scratch_dir)
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# Check out the src and dst source trees.
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checkout_java_tree(get_git_hash(src_rev), src_dir)
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checkout_java_tree(get_git_hash(dst_rev), dst_dir)
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# Run the build in each.
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if args.skip_build:
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logging.info("Skipping the build")
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else:
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build_tree(src_dir)
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build_tree(dst_dir)
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# Find the JARs.
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src_jars = find_jars(src_dir)
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dst_jars = find_jars(dst_dir)
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# Filter the JARs.
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src_jars = filter_jars(src_jars, include_filters, exclude_filters)
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dst_jars = filter_jars(dst_jars, include_filters, exclude_filters)
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if len(src_jars) == 0 or len(dst_jars) == 0:
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logging.error("No JARs found! Are your filters too strong?")
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sys.exit(1)
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run_java_acc(src_rev, src_jars,
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dst_rev, dst_jars, annotations)
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if __name__ == "__main__":
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main()
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