config/rebuild_check.py
author Eric Rahm <erahm@mozilla.com>
Thu, 10 Nov 2016 12:47:23 -0800
changeset 348770 e27050b02d69b88e19e0dcd151916f78259f9bb1
parent 150758 0e91dc91caf177531722ee33ef74da6ad1d664d2
permissions -rw-r--r--
Bug 1313488 - Part 1: Convert XPCOM test TestDeadlockDetector to a gtest. r=froydnj This converts TestDeadlockDetector to a gtest. The logic for spawning off subprocesses is replaced with gtest's built-in death tests. On linux this will clone() the process and assert that the child process generates the appropriate assertion message. On OSX it will use fork(). In theory this should work on Windows as well buy spawning a new process but this test currently disabled there. MozReview-Commit-ID: 9Sl0hHBVGT3

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os
import errno

def mtime(path):
    try:
        return os.stat(path).st_mtime
    except OSError as e:
        if e.errno == errno.ENOENT:
            return -1
        raise

def rebuild_check(args):
    target = args[0]
    deps = args[1:]
    t = mtime(target)
    if t < 0:
        print target
        return

    newer = []
    removed = []
    for dep in deps:
        deptime = mtime(dep)
        if deptime < 0:
            removed.append(dep)
        elif mtime(dep) > t:
            newer.append(dep)

    if newer and removed:
        print 'Rebuilding %s because %s changed and %s was removed' % (target, ', '.join(newer), ', '.join(removed))
    elif newer:
        print 'Rebuilding %s because %s changed' % (target, ', '.join(newer))
    elif removed:
        print 'Rebuilding %s because %s was removed' % (target, ', '.join(removed))
    else:
        print 'Rebuilding %s for an unknown reason' % target

if __name__ == '__main__':
    import sys
    rebuild_check(sys.argv[1:])