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#include "mk.h"
int
dorecipe(Node *node)
{
char buf[BIGBLOCK];
register Node *n;
Rule *r = 0;
Arc *a, *aa;
Word head, ahead, lp, ln, *w, *ww, *aw;
Symtab *s;
int did = 0;
aa = 0;
/*
pick up the rule
*/
for(a = node->prereqs; a; a = a->next)
if(*a->r->recipe)
r = (aa = a)->r;
/*
no recipe? go to buggery!
*/
if(r == 0){
if(!(node->flags&VIRTUAL) && !(node->flags&NORECIPE)){
fprint(2, "mk: no recipe to make '%s'\n", node->name);
Exit();
}
if(strchr(node->name, '(') && node->time == 0)
MADESET(node, MADE);
else
update(0, node);
if(tflag){
if(!(node->flags&VIRTUAL))
touch(node->name);
else if(explain)
Bprint(&bout, "no touch of virtual '%s'\n", node->name);
}
return(did);
}
/*
build the node list
*/
node->next = 0;
head.next = 0;
ww = &head;
ahead.next = 0;
aw = &ahead;
if(r->attr®EXP){
ww->next = newword(node->name);
aw->next = newword(node->name);
} else {
for(w = r->alltargets; w; w = w->next){
if(r->attr&META)
subst(aa->stem, w->s, buf);
else
strcpy(buf, w->s);
aw->next = newword(buf);
aw = aw->next;
if((s = symlook(buf, S_NODE, 0)) == 0)
continue; /* not a node we are interested in */
n = s->u.ptr;
if(aflag == 0 && n->time) {
for(a = n->prereqs; a; a = a->next)
if(a->n && outofdate(n, a, 0))
break;
if(a == 0)
continue;
}
ww->next = newword(buf);
ww = ww->next;
if(n == node) continue;
n->next = node->next;
node->next = n;
}
}
for(n = node; n; n = n->next)
if((n->flags&READY) == 0)
return(did);
/*
gather the params for the job
*/
lp.next = ln.next = 0;
for(n = node; n; n = n->next){
for(a = n->prereqs; a; a = a->next){
if(a->n){
addw(&lp, a->n->name);
if(outofdate(n, a, 0)){
addw(&ln, a->n->name);
if(explain)
fprint(1, "%s(%ld) < %s(%ld)\n",
n->name, n->time, a->n->name, a->n->time);
}
} else {
if(explain)
fprint(1, "%s has no prerequisites\n",
n->name);
}
}
MADESET(n, BEINGMADE);
}
/*print("lt=%s ln=%s lp=%s\n",wtos(head.next, ' '),wtos(ln.next, ' '),wtos(lp.next, ' '));*/
run(newjob(r, node, aa->stem, aa->match, lp.next, ln.next, head.next, ahead.next));
return(1);
}
void
addw(Word *w, char *s)
{
Word *lw;
for(lw = w; w = w->next; lw = w){
if(strcmp(s, w->s) == 0)
return;
}
lw->next = newword(s);
}
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