commit e0041ee5139dcd4173fe8f47ff691c0d41951341
from: Omar Polo <op@omarpolo.com>
date: Thu Oct 01 09:47:02 2020 UTC

add exec action for keys

users can now exec command on specifics keys.  For example:

        match class Something
        on "C-<F5>" do exec my-program

commit - 13cc0916743705e32211da7fcf5499197e36e883
commit + e0041ee5139dcd4173fe8f47ff691c0d41951341
blob - ed7bd95c1204a39113a29c6b727504fe3c8a9cc5
blob + 32657d48a66e7b0a1bac2addbf2a5e8efdcbe614
--- parse.y
+++ parse.y
@@ -28,6 +28,7 @@
 
 #define SPECIAL(X) ((struct action){.type = (ASPECIAL), .special = (X) })
 #define FAKE_KEY(K) ((struct action){.type = (AFAKE), .send_key = (K) })
+#define EXEC(S) ((struct action){.type = (AEXEC), .str = (S) })
 
 %}
  
@@ -42,7 +43,7 @@
 
 %token TMATCH TCLASS
 %token TON TDO
-%token TTOGGLE TACTIVATE TDEACTIVATE TIGNORE
+%token TTOGGLE TACTIVATE TDEACTIVATE TIGNORE TEXEC
 %token TERR
 
 %token <key>	TKEY
@@ -85,4 +86,5 @@ action		: TKEY			{ $$ = FAKE_KEY($1); }
 		| TACTIVATE		{ $$ = SPECIAL(AACTIVATE); }
 		| TDEACTIVATE		{ $$ = SPECIAL(ADEACTIVATE); }
 		| TIGNORE		{ $$ = SPECIAL(AIGNORE); }
+		| TEXEC TSTRING		{ $$ = EXEC($2); }
 		;
blob - 232d734c950fdfca53cb00a1cac2b6ed52927914
blob + ebe717c4d4a3395fcf52d2aba753bcf331bed9dd
--- star-platinum.c
+++ star-platinum.c
@@ -17,6 +17,7 @@
 #include "star-platinum.h"
 
 #include <err.h>
+#include <signal.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
@@ -122,6 +123,8 @@ main(int argc, char **argv)
 	struct rule *r;
 	XEvent e;
 	Window root;
+
+	signal(SIGCHLD, SIG_IGN); /* don't allow zombies */
 
 	fname = NULL;
 	while ((ch = getopt(argc, argv, "c:dn")) != -1) {
@@ -187,7 +190,7 @@ main(int argc, char **argv)
 	XSelectInput(d, root, KeyPressMask);
 	XFlush(d);
 
-	pledge("stdio", "");
+	pledge("stdio proc exec", NULL);
 
 	while (1) {
 		XNextEvent(d, &e);
@@ -341,12 +344,38 @@ do_action(struct action a, Window focused, int pressed
 		}
 		break;
 
+	case AEXEC: {
+		pid_t p;
+		const char *sh;
+
+		switch (p = fork()) {
+		case -1:
+			err(1, "fork");
+
+		case 0:
+			if ((sh = getenv("SHELL")) == NULL)
+				sh = "/bin/sh";
+			printf("before exec'ing %s -c '%s'\n", sh, a.str);
+			execlp(sh, sh, "-c", a.str, NULL);
+			err(1, "execlp");
+		}
+
+		break;
+	}
+
 	default:
 		/* unreachable */
 		abort();
 	}
 }
 
+void
+free_action(struct action a)
+{
+	if (a.type == AEXEC)
+		free(a.str);
+}
+
 
 /* match */
 
@@ -522,16 +551,29 @@ printkey(struct key k)
 void
 printaction(struct action a)
 {
-	if (a.type == ASPECIAL) {
+	switch (a.type) {
+	case ASPECIAL:
 		switch (a.special) {
 		case ATOGGLE: printf("toggle"); break;
 		case AACTIVATE: printf("activate"); break;
 		case ADEACTIVATE: printf("deactivate"); break;
 		case AIGNORE: printf("ignore"); break;
+		default: abort(); /* unreachable */
 		}
-	} else {
+		break;
+
+	case AFAKE:
 		printf("send key ");
 		printkey(a.send_key);
+		break;
+
+	case AEXEC:
+		printf("exec %s", a.str);
+		break;
+
+	default:
+		/* unreachable */
+		abort();
 	}
 }
 
@@ -544,13 +586,16 @@ printmatch(struct match *m)
 	}
 	printf("match ");
 	switch (m->prop) {
+	case MANY:
+		printf("all");
+		break;
 	case MCLASS:
-		printf("class");
+		printf("class %s", m->str);
 		break;
 	default:
+		/* unreachable */
 		abort();
 	}
-	printf(" %s", m->str);
 
 	if (m->next == NULL)
 		printf("\n");
blob - 88db9ef46ddebea1d3579a804908d39b992ff23c
blob + f6a752b1d4a5b367add9cb6b943f2d63a5a816d3
--- star-platinum.h
+++ star-platinum.h
@@ -37,18 +37,21 @@ struct key {
 struct action {
 #define ASPECIAL	1
 #define AFAKE		2
+#define AEXEC		3
 	int type;
 	union {
-#define ATOGGLE		3
-#define AACTIVATE	4
-#define ADEACTIVATE	5
-#define AIGNORE		6
+#define ATOGGLE		1
+#define AACTIVATE	2
+#define ADEACTIVATE	3
+#define AIGNORE		4
 		int special;
 		struct key send_key;
+		char *str;
 	};
 };
 
 void			 do_action(struct action, Window, int);
+void			 free_action(struct action);
 
 struct match {
 #define MANY		1