feat: restartsig patch

config.def.h

@@ -133,6 +133,7 @@ static const Key keys[] = {
 	TAGKEYS(                        XK_underscore,             7)
 	TAGKEYS(                        XK_ccedilla,               8)
 	{ MODKEY|ShiftMask,             XK_q,      quit,           {0} },
+	{ MODKEY|Mod1Mask,              XK_q,      quit,           {1} },
 };
 
 /* button definitions */

dwm.1

@@ -150,6 +150,9 @@ Reset the gaps around windows to
 .TP
 .B Mod4\-Shift\-q
 Quit dwm.
+.TP
+.B Mod4\-Mod1\-q
+Restart dwm.
 .SS Mouse commands
 .TP
 .B Mod4\-Button1
@@ -163,6 +166,13 @@ Resize focused window while dragging. Tiled windows will be toggled to the float
 .SH CUSTOMIZATION
 dwm is customized by creating a custom config.h and (re)compiling the source
 code. This keeps it fast, secure and simple.
+.SH SIGNALS
+.TP
+.B SIGHUP - 1
+Restart the dwm process.
+.TP
+.B SIGTERM - 15
+Cleanly terminate the dwm process.
 .SH SEE ALSO
 .BR dmenu (1),
 .BR st (1)

dwm.c

@@ -236,6 +236,8 @@ static void setup(void);
 static void seturgent(Client *c, int urg);
 static void showhide(Client *c);
 static void sigchld(int unused);
+static void sighup(int unused);
+static void sigterm(int unused);
 static void spawn(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
@@ -299,6 +301,7 @@ static void (*handler[LASTEvent]) (XEvent *) = {
 	[UnmapNotify] = unmapnotify
 };
 static Atom wmatom[WMLast], netatom[NetLast];
+static int restart = 0;
 static int running = 1;
 static Cur *cursor[CurLast];
 static Clr **scheme;
@@ -1376,6 +1379,7 @@ propertynotify(XEvent *e)
 void
 quit(const Arg *arg)
 {
+	if(arg->i) restart = 1;
 	running = 0;
 }
 
@@ -1682,6 +1686,9 @@ setup(void)
 	/* clean up any zombies immediately */
 	sigchld(0);
 
+	signal(SIGHUP, sighup);
+	signal(SIGTERM, sigterm);
+
 	/* init screen */
 	screen = DefaultScreen(dpy);
 	sw = DisplayWidth(dpy, screen);
@@ -1781,6 +1788,20 @@ sigchld(int unused)
 	while (0 < waitpid(-1, NULL, WNOHANG));
 }
 
+void
+sighup(int unused)
+{
+	Arg a = {.i = 1};
+	quit(&a);
+}
+
+void
+sigterm(int unused)
+{
+	Arg a = {.i = 0};
+	quit(&a);
+}
+
 void
 spawn(const Arg *arg)
 {
@@ -2495,6 +2516,7 @@ main(int argc, char *argv[])
 #endif /* __OpenBSD__ */
 	scan();
 	run();
+	if(restart) execvp(argv[0], argv);
 	cleanup();
 	XCloseDisplay(dpy);
 	return EXIT_SUCCESS;

patches/dwm-restartsig-20180523-6.2.diff

@@ -0,0 +1,139 @@
+From 2991f37f0aaf44b9f9b11e7893ff0af8eb88f649 Mon Sep 17 00:00:00 2001
+From: Christopher Drelich <cd@cdrakka.com>
+Date: Wed, 23 May 2018 22:50:38 -0400
+Subject: [PATCH] Modifies quit to handle restarts and adds SIGHUP and SIGTERM
+ handlers.
+
+Modified quit() to restart if it receives arg .i = 1
+MOD+CTRL+SHIFT+Q was added to confid.def.h to do just that.
+
+Signal handlers were handled for SIGHUP and SIGTERM.
+If dwm receives these signals it calls quit() with
+arg .i = to 1 or 0, respectively.
+
+To restart dwm:
+MOD+CTRL+SHIFT+Q
+or
+kill -HUP dwmpid
+
+To quit dwm cleanly:
+MOD+SHIFT+Q
+or
+kill -TERM dwmpid
+---
+ config.def.h |  1 +
+ dwm.1        | 10 ++++++++++
+ dwm.c        | 22 ++++++++++++++++++++++
+ 3 files changed, 33 insertions(+)
+
+diff --git a/config.def.h b/config.def.h
+index a9ac303..e559429 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -94,6 +94,7 @@ static Key keys[] = {
+ 	TAGKEYS(                        XK_8,                      7)
+ 	TAGKEYS(                        XK_9,                      8)
+ 	{ MODKEY|ShiftMask,             XK_q,      quit,           {0} },
++	{ MODKEY|ControlMask|ShiftMask, XK_q,      quit,           {1} }, 
+ };
+ 
+ /* button definitions */
+diff --git a/dwm.1 b/dwm.1
+index 13b3729..36a331c 100644
+--- a/dwm.1
++++ b/dwm.1
+@@ -142,6 +142,9 @@ Add/remove all windows with nth tag to/from the view.
+ .TP
+ .B Mod1\-Shift\-q
+ Quit dwm.
++.TP
++.B Mod1\-Control\-Shift\-q
++Restart dwm.
+ .SS Mouse commands
+ .TP
+ .B Mod1\-Button1
+@@ -155,6 +158,13 @@ Resize focused window while dragging. Tiled windows will be toggled to the float
+ .SH CUSTOMIZATION
+ dwm is customized by creating a custom config.h and (re)compiling the source
+ code. This keeps it fast, secure and simple.
++.SH SIGNALS
++.TP
++.B SIGHUP - 1
++Restart the dwm process.
++.TP
++.B SIGTERM - 15
++Cleanly terminate the dwm process.
+ .SH SEE ALSO
+ .BR dmenu (1),
+ .BR st (1)
+diff --git a/dwm.c b/dwm.c
+index bb95e26..286eecd 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -205,6 +205,8 @@ static void setup(void);
+ static void seturgent(Client *c, int urg);
+ static void showhide(Client *c);
+ static void sigchld(int unused);
++static void sighup(int unused);
++static void sigterm(int unused);
+ static void spawn(const Arg *arg);
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
+@@ -260,6 +262,7 @@ static void (*handler[LASTEvent]) (XEvent *) = {
+ 	[UnmapNotify] = unmapnotify
+ };
+ static Atom wmatom[WMLast], netatom[NetLast];
++static int restart = 0;
+ static int running = 1;
+ static Cur *cursor[CurLast];
+ static Clr **scheme;
+@@ -1248,6 +1251,7 @@ propertynotify(XEvent *e)
+ void
+ quit(const Arg *arg)
+ {
++	if(arg->i) restart = 1;
+ 	running = 0;
+ }
+ 
+@@ -1536,6 +1540,9 @@ setup(void)
+ 	/* clean up any zombies immediately */
+ 	sigchld(0);
+ 
++	signal(SIGHUP, sighup);
++	signal(SIGTERM, sigterm);
++
+ 	/* init screen */
+ 	screen = DefaultScreen(dpy);
+ 	sw = DisplayWidth(dpy, screen);
+@@ -1637,6 +1644,20 @@ sigchld(int unused)
+ }
+ 
+ void
++sighup(int unused)
++{
++	Arg a = {.i = 1};
++	quit(&a);
++}
++
++void
++sigterm(int unused)
++{
++	Arg a = {.i = 0};
++	quit(&a);
++}
++
++void
+ spawn(const Arg *arg)
+ {
+ 	if (arg->v == dmenucmd)
+@@ -2139,6 +2160,7 @@ main(int argc, char *argv[])
+ 	setup();
+ 	scan();
+ 	run();
++	if(restart) execvp(argv[0], argv);
+ 	cleanup();
+ 	XCloseDisplay(dpy);
+ 	return EXIT_SUCCESS;
+-- 
+2.7.4
+