int
run_gnode(GNode *gn)
{
if (gn != NULL && (gn->type & OP_DUMMY) == 0) {
expand_commands(gn);
return run_prepared_gnode(gn);
} else {
return NOSUCHNODE;
}
}
static Job *
prepare_job(GNode *gn, int flags)
{
bool cmdsOK; /* true if the nodes commands were all right */
bool noExec; /* Set true if we decide not to run the job */
/*
* Check the commands now so any attributes from .DEFAULT have a chance
* to migrate to the node
*/
cmdsOK = Job_CheckCommands(gn);
expand_commands(gn);
if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
/*
* We're serious here, but if the commands were bogus, we're
* also dead...
*/
if (!cmdsOK)
job_failure(gn, Punt);
if (Lst_IsEmpty(&gn->commands))
noExec = true;
else
noExec = false;
} else if (noExecute) {
if (!cmdsOK || Lst_IsEmpty(&gn->commands))
noExec = true;
else
noExec = false;
} else {
/*
* Just touch the target and note that no shell should be
* executed. Check
* the commands, too, but don't die if they're no good -- it
* does no harm to keep working up the graph.
*/
Job_Touch(gn);
noExec = true;
}
/*
* If we're not supposed to execute a shell, don't.
*/
if (noExec) {
/*
* We only want to work our way up the graph if we aren't here
* because the commands for the job were no good.
*/
if (cmdsOK && !aborting) {
gn->built_status = MADE;
Make_Update(gn);
}
return NULL;
} else {
Job *job; /* new job descriptor */
job = emalloc(sizeof(Job));
if (job == NULL)
Punt("JobStart out of memory");
job->node = gn;
/*
* Set the initial value of the flags for this job based on the
* global ones and the node's attributes... Any flags supplied
* by the caller are also added to the field.
*/
job->flags = flags;
if (gn->type & OP_CHEAP)
return job;
if ((gn->type & OP_EXPENSIVE) ||
expensive_commands(&gn->expanded))
job->flags |= JOB_IS_EXPENSIVE;
return job;
}
}
