apenwarr-redo/redo.py
Avery Pennarun 03a054ca79 Add a --debug-locks option.
Get rid of the "locked..." and "...unlocked!" messages by default, since
they're not usually interesting.  But add a new option to bring them back in
case we end up with trouble debugging the locking stuff.  (I don't really
100% trust it yet, although I haven't had a problem for a while now.)
2010-11-21 06:23:41 -08:00

71 lines
2 KiB
Python
Executable file

#!/usr/bin/python
import sys, os
import options, jwack, atoi
optspec = """
redo [targets...]
--
j,jobs= maximum number of jobs to build at once
d,debug print dependency checks as they happen
v,verbose print commands as they are run
shuffle randomize the build order to find dependency bugs
debug-locks print messages about file locking (useful for debugging)
"""
o = options.Options('redo', optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
targets = extra or ['all']
if opt.debug:
os.environ['REDO_DEBUG'] = str(opt.debug or 0)
if opt.verbose:
os.environ['REDO_VERBOSE'] = '1'
if opt.shuffle:
os.environ['REDO_SHUFFLE'] = '1'
if opt.debug_locks:
os.environ['REDO_DEBUG_LOCKS'] = '1'
is_root = not os.environ.get('REDO', '')
if is_root:
# toplevel call to redo
exenames = [os.path.abspath(sys.argv[0]), os.path.realpath(sys.argv[0])]
if exenames[0] == exenames[1]:
exenames = [exenames[0]]
dirnames = [os.path.dirname(p) for p in exenames]
os.environ['PATH'] = ':'.join(dirnames) + ':' + os.environ['PATH']
base = os.path.commonprefix([os.path.abspath(os.path.dirname(t))
for t in targets] + [os.getcwd()])
bsplit = base.split('/')
for i in range(len(bsplit)-1, 0, -1):
newbase = '/'.join(bsplit[:i])
if os.path.exists(newbase + '/.redo'):
base = newbase
break
os.environ['REDO_BASE'] = base
os.environ['REDO_STARTDIR'] = os.getcwd()
os.environ['REDO'] = os.path.abspath(sys.argv[0])
import vars, state, builder
from helpers import err
if is_root:
state.init()
try:
j = atoi.atoi(opt.jobs or 1)
if j < 1 or j > 1000:
err('invalid --jobs value: %r\n' % opt.jobs)
jwack.setup(j)
try:
retcode = builder.main(targets, builder.build)
finally:
jwack.force_return_tokens()
if retcode:
err('exiting: %d\n' % retcode)
sys.exit(retcode)
except KeyboardInterrupt:
sys.exit(200)