apenwarr-redo/redo-unlocked.py
Seamus Connor 190b4c34ff Replaced all instances of 'python' with 'python2'
On systems where 'python' refers to python3, redo
failed to launch. All invocations of python have been
made explicitly python2 invocations. All tests pass
on an Arch Linux system as of this commit.
2018-11-14 10:52:09 -08:00

35 lines
983 B
Python
Executable file

#!/usr/bin/env python2
import sys, os
import state
from log import err
if len(sys.argv[1:]) < 2:
err('%s: at least 2 arguments expected.\n' % sys.argv[0])
sys.exit(1)
target = sys.argv[1]
deps = sys.argv[2:]
for d in deps:
assert(d != target)
me = state.File(name=target)
# Build the known dependencies of our primary target. This *does* require
# grabbing locks.
os.environ['REDO_NO_OOB'] = '1'
argv = ['redo-ifchange'] + deps
rv = os.spawnvp(os.P_WAIT, argv[0], argv)
if rv:
sys.exit(rv)
# We know our caller already owns the lock on target, so we don't have to
# acquire another one; tell redo-ifchange about that. Also, REDO_NO_OOB
# persists from up above, because we don't want to do OOB now either.
# (Actually it's most important for the primary target, since it's the one
# who initiated the OOB in the first place.)
os.environ['REDO_UNLOCKED'] = '1'
argv = ['redo-ifchange', target]
rv = os.spawnvp(os.P_WAIT, argv[0], argv)
if rv:
sys.exit(rv)