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Added 'lockfile' option to scons

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It uses a lockfile to prevent multiple instances of scons from being run
in the same working copy at the same time.
This commit is contained in:
Sergey Popov 2009-10-10 11:00:12 +00:00
parent 15cc0203d0
commit 068103c765
1 changed files with 9 additions and 1 deletions
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10
SConstruct
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@ -90,7 +90,8 @@ opts.AddVariables(
BoolVariable('distcc', 'Use distcc', False),
BoolVariable('ccache', "Use ccache", False),
('cxxtool', 'Set c++ compiler command if not using standard compiler.'),
BoolVariable("fast", "Make scons faster at cost of less precise dependency tracking.", False)
BoolVariable("fast", "Make scons faster at cost of less precise dependency tracking.", False),
BoolVariable("lockfile", "Create a lockfile to prevent multiple instances of scons from being run at the same time on this working copy.", False)
)
#
@ -100,6 +101,13 @@ opts.AddVariables(
sys.path.insert(0, "./scons")
env = Environment(tools=["tar", "gettext", "install", "python_devel", "scanreplace"], options = opts, toolpath = ["scons"])
if env["lockfile"]:
print "Creating lockfile"
lockfile = os.path.abspath("scons.lock")
open(lockfile, "wx").write(str(os.getpid()))
import atexit
atexit.register(os.remove, lockfile)
opts.Save('.scons-option-cache', env)
env.SConsignFile("$build_dir/sconsign.dblite")