scons_gd/scons/test/SideEffect/parallel.py
2022-10-15 16:06:26 +02:00

139 lines
3.5 KiB
Python

#!/usr/bin/env python
#
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
"""
Verify that targets with the same SideEffect are not built in parallel
when the -j option is used.
"""
import TestSCons
_python_ = TestSCons._python_
test = TestSCons.TestSCons()
test.write('build.py', """
import os
import sys
import time
lockdir = 'build.lock'
logfile = 'log.txt'
try:
os.mkdir(lockdir)
except OSError as e:
msg = 'could not create lock directory: %s\\n' % e
sys.stderr.write(msg)
sys.exit(1)
src, target = sys.argv[1:]
with open(logfile, 'ab') as f:
f.write(('%s -> %s\\n' % (src, target)).encode())
with open(target, 'wb') as ofp, open(src, 'rb') as ifp:
ofp.write(ifp.read())
# Give the other threads a chance to start.
time.sleep(1)
os.rmdir(lockdir)
""")
test.write('SConstruct', """\
Build = Builder(action=r'%(_python_)s build.py $SOURCE $TARGET')
env = Environment(BUILDERS={'Build':Build})
env.Build('h1.out', 'h1.in')
env.Build('g2.out', 'g2.in')
env.Build('f3.out', 'f3.in')
SideEffect('log.txt', ['h1.out', 'g2.out', 'f3.out'])
env.Build('log.out', 'log.txt')
""" % locals())
test.write('h1.in', 'h1.in\n')
test.write('g2.in', 'g2.in\n')
test.write('f3.in', 'f3.in\n')
test.write('baz.in', 'baz.in\n')
test.run(arguments = "-j 4 .")
test.must_match('h1.out', 'h1.in\n')
test.must_match('g2.out', 'g2.in\n')
test.must_match('f3.out', 'f3.in\n')
test.must_exist('log.txt')
test.must_exist('log.out')
stdout = test.stdout()
build_lines = [
'build.py h1.in h1.out',
'build.py g2.in g2.out',
'build.py f3.in f3.out',
]
missing = []
for line in build_lines:
if stdout.find(line) == -1:
missing.append(line)
if missing:
print("===== standard output is missing the following lines:")
print('\n'.join(missing))
print("===== STDOUT ========================================")
print(stdout)
test.fail_test()
log = test.read('log.txt', mode='r')
log_lines = [
'f3.in -> f3.out',
'h1.in -> h1.out',
'g2.in -> g2.out',
]
missing = []
for line in log_lines:
if log.find(line) == -1:
missing.append(line)
if missing:
print("===== log file 'log.txt' is missing the following lines:")
print('\n'.join(missing))
print("===== STDOUT ===========================================")
print(log)
test.fail_test()
test.pass_test()
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4: