apenwarr-redo/redo.py
Avery Pennarun 613625b580 Add more assertions about uncommitted sqlite transactions.
I think we were sometimes leaving half-done sqlite transactions sitting
around for a long time (eg. across sub-calls to .do files).  This
seemed to be okay on Linux, but caused sqlite deadlocks on MacOS.  Most
likely it's not the operating system, but the sqlite version and
journal mode in use.

In any case, the correct thing to do is to actually commit or rollback
transactions, not leave them hanging around.

...unfortunately this doesn't actually fix my MacOS deadlocks, which
makes me rather nervous.
2018-10-06 05:06:19 -04:00

75 lines
2.1 KiB
Python
Executable file

#!/usr/bin/env python
import sys, os
import options
from helpers import 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 read from .do files (variables intact)
x,xtrace print commands as they are executed (variables expanded)
k,keep-going keep going as long as possible even if some targets fail
shuffle randomize the build order to find dependency bugs
debug-locks print messages about file locking (useful for debugging)
debug-pids print process ids as part of log messages (useful for debugging)
version print the current version and exit
old-args use old-style definitions of $1,$2,$3 (deprecated)
"""
o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
targets = extra
if opt.version:
import version
print version.TAG
sys.exit(0)
if opt.debug:
os.environ['REDO_DEBUG'] = str(opt.debug or 0)
if opt.verbose:
os.environ['REDO_VERBOSE'] = '1'
if opt.xtrace:
os.environ['REDO_XTRACE'] = '1'
if opt.keep_going:
os.environ['REDO_KEEP_GOING'] = '1'
if opt.shuffle:
os.environ['REDO_SHUFFLE'] = '1'
if opt.debug_locks:
os.environ['REDO_DEBUG_LOCKS'] = '1'
if opt.debug_pids:
os.environ['REDO_DEBUG_PIDS'] = '1'
if opt.old_args:
os.environ['REDO_OLD_ARGS'] = '1'
import vars_init
vars_init.init(targets)
import vars, state, builder, jwack
from log import warn, err
try:
for t in targets:
if os.path.exists(t):
f = state.File(name=t)
if not f.is_generated:
warn('%s: exists and not marked as generated; not redoing.\n'
% f.nicename())
j = atoi(opt.jobs or 1)
if j < 1 or j > 1000:
err('invalid --jobs value: %r\n' % opt.jobs)
jwack.setup(j)
try:
assert(state.is_flushed())
retcode = builder.main(targets, lambda t: True)
assert(state.is_flushed())
finally:
try:
state.rollback()
finally:
jwack.force_return_tokens()
sys.exit(retcode)
except KeyboardInterrupt:
sys.exit(200)