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Diffstat (limited to 'classes/utils.bbclass')
-rw-r--r-- | classes/utils.bbclass | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/classes/utils.bbclass b/classes/utils.bbclass index ecb00ec26e..6ff11dd4a7 100644 --- a/classes/utils.bbclass +++ b/classes/utils.bbclass @@ -1,3 +1,33 @@ +def subprocess_setup(): + import signal + # Python installs a SIGPIPE handler by default. This is usually not what + # non-Python subprocesses expect. + signal.signal(signal.SIGPIPE, signal.SIG_DFL) + +def oe_popen(d, cmd, **kwargs): + """ Convenience function to call out processes with our exported + variables in the environment. + """ + from subprocess import Popen + + if kwargs.get("env") is None: + env = d.getVar("__oe_popen_env", False) + if env is None: + env = {} + for v in d.keys(): + if d.getVarFlag(v, "export"): + env[v] = d.getVar(v, True) or "" + d.setVar("__oe_popen_env", env) + kwargs["env"] = env + + kwargs["preexec_fn"] = subprocess_setup + + return Popen(cmd, **kwargs) + +def oe_system(d, cmd): + """ Popen based version of os.system. """ + return oe_popen(d, cmd, shell=True).wait() + # like os.path.join but doesn't treat absolute RHS specially def base_path_join(a, *p): path = a |