extensions: include current version in "invalid version" message
It is "not so rare" for the mercurial version to be badly detected at build
time. In such case, version check for extensions gets confused.
To help pinpoint the error, we now include the Mercurial's version number in
the error message.
#!/usr/bin/env python
#
# simple script to be used in hooks
#
# put something like this in the repo .hg/hgrc:
#
# [hooks]
# changegroup = python "$TESTDIR/printenv.py" <hookname> [exit] [output]
#
# - <hookname> is a mandatory argument (e.g. "changegroup")
# - [exit] is the exit code of the hook (default: 0)
# - [output] is the name of the output file (default: use sys.stdout)
# the file will be opened in append mode.
#
from __future__ import absolute_import
import os
import sys
try:
import msvcrt
msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError:
pass
exitcode = 0
out = sys.stdout
out = getattr(out, 'buffer', out)
name = sys.argv[1]
if len(sys.argv) > 2:
exitcode = int(sys.argv[2])
if len(sys.argv) > 3:
out = open(sys.argv[3], "ab")
# variables with empty values may not exist on all platforms, filter
# them now for portability sake.
env = [(k, v) for k, v in os.environ.items()
if k.startswith("HG_") and v]
env.sort()
out.write(b"%s hook: " % name.encode('ascii'))
if os.name == 'nt':
filter = lambda x: x.replace('\\', '/')
else:
filter = lambda x: x
vars = [b"%s=%s" % (k.encode('ascii'), filter(v).encode('ascii'))
for k, v in env]
out.write(b" ".join(vars))
out.write(b"\n")
out.close()
sys.exit(exitcode)