del transaction before lock before wlock
This way rollbacks happen while the repo is still locked.
Deleting lock before wlock is not strictly necessary, but is
more consistent with the locking order.
#!/usr/bin/env python
"""Test the running system for features availability. Exit with zero
if all features are there, non-zero otherwise.
"""
import optparse
import os
import sys
def has_symlink():
return hasattr(os, "symlink")
checks = {
"symlink": (has_symlink, "symbolic links"),
}
def list_features():
for name, feature in checks.iteritems():
desc = feature[1]
print name + ':', desc
parser = optparse.OptionParser("%prog [options] [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)
quiet = options.quiet
failures = 0
def error(msg):
global failures
if not quiet:
sys.stderr.write(msg + '\n')
failures += 1
for feature in args:
if feature not in checks:
error('hghave: unknown feature: ' + feature)
continue
check, desc = checks[feature]
if not check():
error('hghave: missing feature: ' + desc)
if failures != 0:
sys.exit(1)