cool autostart patch

README.md

@@ -65,4 +65,5 @@ Most patches can be found on the suckless website: [https://dwm.suckless.org/pat
 * [cfacts](https://dwm.suckless.org/patches/cfacts/) - Assign different weights to clients in their respective stack in tiled layout
 * [cfacts-vanitygaps](https://github.com/bakkeby/patches/blob/master/dwm/dwm-cfacts-vanitygaps-6.2.diff) - Vanity gaps patch compatible with cfacts patch
 * [combo](https://dwm.suckless.org/patches/combo/) - Select multiple tags for tag or view by pressing all the right keys as a combo
+* [cool autostart](https://dwm.suckless.org/patches/cool_autostart/) - Execute commands from `autostart` array in `config.h` on startup and kill processes upon dwm exit
 * [fixborders](https://dwm.suckless.org/patches/alpha/) - Make borders opaque

config.def.h

@@ -27,6 +27,34 @@ static const char *colors[][3]      = {
 	[SchemeSel]  = { col_gray4, col_cyan,  col_cyan  },
 };
 
+static const char *const autostart[] = {
+	// System Restore Processes
+    "bash", "/home/sravan/.screenlayout/default-screen-layout.sh", NULL, // Restore default screen layout
+    "nitrogen", "--restore", NULL,                                       // Restore wallpaper
+    // System Tray Applications
+    "volctl", NULL,                                                      // PulseAudio Volume Control
+    "nyrna", NULL,                                                       // Nyrna Application Suspend
+    "blueman-tray", NULL,                                                // Blueman Bluetooth Manager
+    "nm-applet", NULL,                                                   // Network Manager Applet
+    "kdeconnect-indicator", NULL,                                        // KDE Connect
+    "flameshot", NULL,                                                   // Flameshot Screenshot Tool
+	"xfce4-power-manager", NULL,                                         // XFCE4 Power Manager
+    // Background Processes
+    "picom", "--config", "/home/sravan/.config/picom/picom.conf", NULL,  // Picom Compositor
+    "/usr/lib/xfce4/notifyd/xfce4-notifyd", NULL,                        // Xfce Notification Daemon
+    "greenclip", "daemon", NULL,                                         // Greenclip Clipboard Manager
+    "redshift", "-x", NULL,                                              // Reset redshift display gamma
+    "redshift-gtk", NULL,                                                // Redshift Blue Light Filter
+    "/usr/lib/polkit-gnome/polkit-gnome-authentication-agent-1", NULL,   // GNOME Polkit Authentication Agent
+    "slstatus", NULL,                                                    // slstatus status bar
+    "light-locker", "--lock-on-suspend", "--lock-on-lid", NULL,          // LightDM Locker
+    // Hardware Driver Applications
+    "solaar", "--window=hide", NULL,                                     // Logitech Mouse Driver
+    "polychromatic-tray-applet", NULL,                                   // Razer Keyboard Customization
+    "optimus-manager-qt", NULL,                                          // Optimus Manager Qt
+	NULL /* terminate */
+};
+
 /* tagging */
 static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
 

dwm.c

@@ -253,6 +253,7 @@ static int xerror(Display *dpy, XErrorEvent *ee);
 static int xerrordummy(Display *dpy, XErrorEvent *ee);
 static int xerrorstart(Display *dpy, XErrorEvent *ee);
 static void zoom(const Arg *arg);
+static void autostart_exec(void);
 
 static void keyrelease(XEvent *e);
 static void combotag(const Arg *arg);
@@ -301,6 +302,34 @@ static Window root, wmcheckwin;
 /* compile-time check if all tags fit into an unsigned int bit array. */
 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
 
+/* dwm will keep pid's of processes from autostart array and kill them at quit */
+static pid_t *autostart_pids;
+static size_t autostart_len;
+
+/* execute command from autostart array */
+static void
+autostart_exec() {
+	const char *const *p;
+	size_t i = 0;
+
+	/* count entries */
+	for (p = autostart; *p; autostart_len++, p++)
+		while (*++p);
+
+	autostart_pids = malloc(autostart_len * sizeof(pid_t));
+	for (p = autostart; *p; i++, p++) {
+		if ((autostart_pids[i] = fork()) == 0) {
+			setsid();
+			execvp(*p, (char *const *)p);
+			fprintf(stderr, "dwm: execvp %s\n", *p);
+			perror(" failed");
+			_exit(EXIT_FAILURE);
+		}
+		/* skip arguments */
+		while (*++p);
+	}
+}
+
 /* function implementations */
 static int combo = 0;
 
@@ -1423,6 +1452,16 @@ propertynotify(XEvent *e)
 void
 quit(const Arg *arg)
 {
+	size_t i;
+
+	/* kill child processes */
+	for (i = 0; i < autostart_len; i++) {
+		if (0 < autostart_pids[i]) {
+			kill(autostart_pids[i], SIGTERM);
+			waitpid(autostart_pids[i], NULL, 0);
+		}
+	}
+
 	running = 0;
 }
 
@@ -1858,9 +1897,25 @@ showhide(Client *c)
 void
 sigchld(int unused)
 {
+	pid_t pid;
+
 	if (signal(SIGCHLD, sigchld) == SIG_ERR)
 		die("can't install SIGCHLD handler:");
-	while (0 < waitpid(-1, NULL, WNOHANG));
+	while (0 < (pid = waitpid(-1, NULL, WNOHANG))) {
+		pid_t *p, *lim;
+
+		if (!(p = autostart_pids))
+			continue;
+		lim = &p[autostart_len];
+
+		for (; p < lim; p++) {
+			if (*p == pid) {
+				*p = -1;
+				break;
+			}
+		}
+
+	}
 }
 
 void
@@ -2425,6 +2480,7 @@ main(int argc, char *argv[])
 	if (!(dpy = XOpenDisplay(NULL)))
 		die("dwm: cannot open display");
 	checkotherwm();
+	autostart_exec();
 	setup();
 #ifdef __OpenBSD__
 	if (pledge("stdio rpath proc exec", NULL) == -1)

patches/dwm-cool-autostart-6.2.diff

@@ -0,0 +1,116 @@
+diff --git a/config.def.h b/config.def.h
+index 1c0b587..ed056a4 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -18,6 +18,11 @@ static const char *colors[][3]      = {
+ 	[SchemeSel]  = { col_gray4, col_cyan,  col_cyan  },
+ };
+ 
++static const char *const autostart[] = {
++	"st", NULL,
++	NULL /* terminate */
++};
++
+ /* tagging */
+ static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
+ 
+diff --git a/dwm.c b/dwm.c
+index 9fd0286..1facd56 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -234,6 +234,7 @@ static int xerror(Display *dpy, XErrorEvent *ee);
+ static int xerrordummy(Display *dpy, XErrorEvent *ee);
+ static int xerrorstart(Display *dpy, XErrorEvent *ee);
+ static void zoom(const Arg *arg);
++static void autostart_exec(void);
+ 
+ /* variables */
+ static const char broken[] = "broken";
+@@ -275,6 +276,34 @@ static Window root, wmcheckwin;
+ /* compile-time check if all tags fit into an unsigned int bit array. */
+ struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
+ 
++/* dwm will keep pid's of processes from autostart array and kill them at quit */
++static pid_t *autostart_pids;
++static size_t autostart_len;
++
++/* execute command from autostart array */
++static void
++autostart_exec() {
++	const char *const *p;
++	size_t i = 0;
++
++	/* count entries */
++	for (p = autostart; *p; autostart_len++, p++)
++		while (*++p);
++
++	autostart_pids = malloc(autostart_len * sizeof(pid_t));
++	for (p = autostart; *p; i++, p++) {
++		if ((autostart_pids[i] = fork()) == 0) {
++			setsid();
++			execvp(*p, (char *const *)p);
++			fprintf(stderr, "dwm: execvp %s\n", *p);
++			perror(" failed");
++			_exit(EXIT_FAILURE);
++		}
++		/* skip arguments */
++		while (*++p);
++	}
++}
++
+ /* function implementations */
+ void
+ applyrules(Client *c)
+@@ -1249,6 +1278,16 @@ propertynotify(XEvent *e)
+ void
+ quit(const Arg *arg)
+ {
++	size_t i;
++
++	/* kill child processes */
++	for (i = 0; i < autostart_len; i++) {
++		if (0 < autostart_pids[i]) {
++			kill(autostart_pids[i], SIGTERM);
++			waitpid(autostart_pids[i], NULL, 0);
++		}
++	}
++
+ 	running = 0;
+ }
+ 
+@@ -1632,9 +1671,25 @@ showhide(Client *c)
+ void
+ sigchld(int unused)
+ {
++	pid_t pid;
++
+ 	if (signal(SIGCHLD, sigchld) == SIG_ERR)
+ 		die("can't install SIGCHLD handler:");
+-	while (0 < waitpid(-1, NULL, WNOHANG));
++	while (0 < (pid = waitpid(-1, NULL, WNOHANG))) {
++		pid_t *p, *lim;
++
++		if (!(p = autostart_pids))
++			continue;
++		lim = &p[autostart_len];
++
++		for (; p < lim; p++) {
++			if (*p == pid) {
++				*p = -1;
++				break;
++			}
++		}
++
++	}
+ }
+ 
+ void
+@@ -2139,6 +2194,7 @@ main(int argc, char *argv[])
+ 	if (!(dpy = XOpenDisplay(NULL)))
+ 		die("dwm: cannot open display");
+ 	checkotherwm();
++	autostart_exec();
+ 	setup();
+ #ifdef __OpenBSD__
+ 	if (pledge("stdio rpath proc exec", NULL) == -1)
+