tests/hghave

obsolete: sort obsmarkers during exchange

Because bundle2 allows a more precise exchange of obsmarkers during pull, it
sends them in a different order (previously unstable because of sets.)  As
a result, they are added to the repository in a different order. To stabilize
the order and ensure tests are unchanged when moving from bundle1 to bundle2 we
sort markers when exchanging them.

In the long run, the obsstore will probably not use a linear storage.

#!/usr/bin/env python
"""Test the running system for features availability. Exit with zero
if all features are there, non-zero otherwise. If a feature name is
prefixed with "no-", the absence of feature is tested.
"""
import optparse
import sys
import hghave

checks = hghave.checks

def list_features():
    for name, feature in sorted(checks.iteritems()):
        desc = feature[1]
        print name + ':', desc

def test_features():
    failed = 0
    for name, feature in checks.iteritems():
        check, _ = feature
        try:
            check()
        except Exception, e:
            print "feature %s failed:  %s" % (name, e)
            failed += 1
    return failed

parser = optparse.OptionParser("%prog [options] [features]")
parser.add_option("--test-features", action="store_true",
                  help="test available features")
parser.add_option("--list-features", action="store_true",
                  help="list available features")
parser.add_option("-q", "--quiet", action="store_true",
                  help="check features silently")

if __name__ == '__main__':
    options, args = parser.parse_args()
    if options.list_features:
        list_features()
        sys.exit(0)

    if options.test_features:
        sys.exit(test_features())

    quiet = options.quiet

    failures = 0

    def error(msg):
        global failures
        if not quiet:
            sys.stderr.write(msg + '\n')
        failures += 1

    for feature in args:
        negate = feature.startswith('no-')
        if negate:
            feature = feature[3:]

        if feature not in checks:
            error('skipped: unknown feature: ' + feature)
            sys.exit(2)

        check, desc = checks[feature]
        try:
            available = check()
        except Exception, e:
            error('hghave check failed: ' + feature)
            continue

        if not negate and not available:
            error('skipped: missing feature: ' + desc)
        elif negate and available:
            error('skipped: system supports %s' % desc)

    if failures != 0:
        sys.exit(1)