Fix bash completion installation

Currently this fails if the directory for the completion does not
already exist, at least with FreeBSD install(1).

Makefile

@@ -3,8 +3,9 @@ SCANNER := wayland-scanner
 PREFIX=/usr/local
 BINDIR=$(PREFIX)/bin
 MANDIR=$(PREFIX)/share/man
+BASHCOMPDIR=$(PREFIX)/share/bash-completion/completions
 
-CFLAGS+=-Wall -Werror -Wextra -Wpedantic -Wno-unused-parameter -Wconversion -Wformat-security -Wformat -Wsign-conversion -Wfloat-conversion -Wunused-result
+CFLAGS+=-Wall -Werror -Wextra -Wpedantic -Wno-unused-parameter -Wconversion -Wformat-security -Wformat -Wsign-conversion -Wfloat-conversion -Wunused-result -Wno-strict-prototypes
 LIBS=-lwayland-client
 OBJ=wlopm.o wlr-output-power-management-unstable-v1.o
 GEN=wlr-output-power-management-unstable-v1.c wlr-output-power-management-unstable-v1.h
@@ -21,15 +22,19 @@ $(OBJ): $(GEN)
 	$(SCANNER) client-header < $< > $@
 
 install: wlopm
-	install -D wlopm   $(DESTDIR)$(BINDIR)/wlopm
-	install -D wlopm.1 $(DESTDIR)$(MANDIR)/man1/wlopm.1
+	install -d $(DESTDIR)$(BINDIR)
+	install wlopm $(DESTDIR)$(BINDIR)
+	install -d $(DESTDIR)$(MANDIR)/man1
+	install -m 644 wlopm.1 $(DESTDIR)$(MANDIR)/man1
+	install -d $(DESTDIR)$(BASHCOMPDIR)
+	install bash-completion $(DESTDIR)$(BASHCOMPDIR)/wlopm
 
 uninstall:
 	$(RM) $(DESTDIR)$(BINDIR)/wlopm
 	$(RM) $(DESTDIR)$(MANDIR)/man1/wlopm.1
+	$(RM) $(DESTDIR)$(BASHCOMPDIR)/wlopm
 
 clean:
 	$(RM) wlopm $(GEN) $(OBJ)
 
 .PHONY: clean install
-

bash-completion

@@ -0,0 +1,14 @@
+function __wlopm_completion ()
+{
+    case "${COMP_WORDS[-2]}" in
+	"--on"|"--off"|"--toggle")
+	    OPTS="$(wlopm | cut -d' ' -f1 | tr '\n' ' ')"
+	    ;;
+
+	*)
+	    OPTS="-h --help -j --json -v --version --on --off --toggle"
+	    ;;
+    esac
+    COMPREPLY=($(compgen -W "${OPTS}" -- "${COMP_WORDS[${COMP_CWORD}]}"))
+}
+complete -F __wlopm_completion wlopm

wlopm.1

@@ -74,7 +74,7 @@ Toggle the power mode of the output
 .
 .SH OUTPUT NAMES
 .P
-Output names are compositor dependand.
+Output names are compositor dependent.
 .P
 If instead of an output name \fB*\fR is given as parameter to an operation,
 wlopm will do the operation for all discovered outputs.

wlopm.c

@@ -16,7 +16,6 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-#include <ctype.h>
 #include <errno.h>
 #include <signal.h>
 #include <stdbool.h>
@@ -35,7 +34,7 @@
 
 #include "wlr-output-power-management-unstable-v1.h"
 
-#define VERSION "0.1.0"
+#define VERSION "1.0.0"
 
 const char usage[] =
 	"Usage: wlopm [options...]\n"
@@ -93,8 +92,6 @@ struct zwlr_output_power_manager_v1 *wlr_output_power_manager = NULL;
 int ret = EXIT_SUCCESS;
 bool loop = true;
 
-static void noop () {}
-
 static void wlr_output_power_handle_mode (void *data, struct zwlr_output_power_v1 *wlr_output_power,
 		enum zwlr_output_power_v1_mode mode)
 {
@@ -122,13 +119,43 @@ static void wl_output_handle_name (void *data, struct wl_output *wl_output,
 	output->name = strdup(name);
 }
 
+static void wl_output_handle_geometry (void *data, struct wl_output *wl_output,
+		int32_t x, int32_t y, int32_t physical_width, int32_t physical_height,
+		int32_t subpixel, const char* make, const char* model, int32_t transform)
+{
+	/* This function is deliberately left empty. */
+}
+
+static void wl_output_handle_mode (void *data, struct wl_output *wl_output,
+		uint32_t flags, int32_t width, int32_t height, int32_t refresh)
+{
+	/* This function is deliberately left empty. */
+}
+
+static void wl_output_handle_scale (void *data, struct wl_output *wl_output,
+		int32_t scale)
+{
+	/* This function is deliberately left empty. */
+}
+
+static void wl_output_handle_description (void *data, struct wl_output *wl_output,
+		const char *description)
+{
+	/* This function is deliberately left empty. */
+}
+
+static void wl_output_handle_done (void *data, struct wl_output *wl_output)
+{
+	/* This function is deliberately left empty. */
+}
+
 static const struct wl_output_listener wl_output_listener = {
 	.name        = wl_output_handle_name,
-	.geometry    = noop,
-	.mode        = noop,
-	.scale       = noop,
-	.description = noop,
-	.done        = noop,
+	.geometry    = wl_output_handle_geometry,
+	.mode        = wl_output_handle_mode,
+	.scale       = wl_output_handle_scale,
+	.description = wl_output_handle_description,
+	.done        = wl_output_handle_done,
 };
 
 static void registry_handle_global (void *data, struct wl_registry *registry,
@@ -151,7 +178,7 @@ static void registry_handle_global (void *data, struct wl_registry *registry,
 			return;
 		}
 
-		output->wl_output = wl_registry_bind(registry, name, 
+		output->wl_output = wl_registry_bind(registry, name,
 				&wl_output_interface, 4);
 		wl_output_add_listener(output->wl_output, &wl_output_listener, output);
 		output->wlr_output_power = NULL;
@@ -165,9 +192,15 @@ static void registry_handle_global (void *data, struct wl_registry *registry,
 				&zwlr_output_power_manager_v1_interface, version);
 }
 
+static void registry_handle_global_remove (void *data, struct wl_registry *registry,
+    uint32_t name)
+{
+	/* We don't run long enough to care. */
+}
+
 static const struct wl_registry_listener registry_listener = {
 	.global        = registry_handle_global,
-	.global_remove = noop, /* We don't run long enough to care. */
+	.global_remove = registry_handle_global_remove,
 };
 
 static void sync_handle_done (void *data, struct wl_callback *wl_callback, uint32_t other_data);
@@ -570,4 +603,3 @@ int main(int argc, char *argv[])
 
 	return ret;
 }
-