damb: wayland support, more appropriate dependency check

1 files changed, 80 insertions, 37 deletions

diff --git a/damb b/damb
index 8a7548b..02eea34 100755
--- a/damb
+++ b/damb
@@ -1,60 +1,103 @@
 #!/bin/sh
-# https://sinanmohd.com
 
-####################
-## user variables ##
-####################
 # dir where audio files are stored
 amb_dir="$HOME/.local/share/damb"
-# pid file location
 pid_file="/tmp/damb.pid"
-# dir where config files are stored
 config_dir="$HOME/.config/damb"
+menu="dmenu"
 
-get_opt()
+die()
 {
-        printf "select\nlinks\nrandom\nstream\nstop" | dmenu -p "הּ  "
+	: "${1:?}"
+
+	command -v notify-send > /dev/null &&
+		notify-send " damb" "$1"
+
+	printf "\033[31;1merr: %b\033[0m\n" "$1"
+	exit "${2:-1}"
 }
 
-get_ambs() 
+dep_check()
 {
-        find "$amb_dir" -type f -exec basename {} \;
+	: "${1:?}"
+
+	for dep; do
+		command -v "$dep" 1>/dev/null ||
+			die "$dep not found, please install it" 127
+	done
+
+	unset dep
 }
 
-send_err()
+get_opt()
 {
-        printf "error: %s\n" "$1"
-        notify-send " damb" "error, $1"
+        printf "select\nlinks\nrandom\nstream\nstop" | "$menu" -p "הּ  "
+}
 
+get_ambs()
+{
+        find "$amb_dir" -type f -exec basename {} \;
 }
 
 get_link()
 {
         grep -v "^#.*$" "$config_dir"/links |
-                grep "$(grep -v "^#.*$" "$config_dir"/links | cut -d '=' -f1 | dmenu -p "  " -l 25)" |
+                grep "$(grep -v "^#.*$" "$config_dir"/links | cut -d '=' -f1 | "$menu" -p "  " -l 25)" |
                 cut -d '=' -f2 | tr -d ' '
 }
 
-case "$(get_opt)" in
-        select) ffplay -volume 20 -nodisp -loop 0 "$amb_dir/$(get_ambs | dmenu -p "  " -l 25)" &
-                echo "$!" >> "$pid_file"
-                ;;
-        links)  mpv --no-video --no-resume-playback "$(get_link)" &
-                echo "$!" >> "$pid_file"
-                ;;
-        random) ffplay -volume 20 -nodisp -loop 0 "$amb_dir/$(get_ambs | shuf -n1)" &
-                echo "$!" >> "$pid_file"
-                ;;
-        stop)   while IFS= read -r process
-                do
-                        kill -2 "$process"
-                done < "$pid_file"
-
-                rm "$pid_file"
-                ;;
-        stream) mpv --no-video "$(xclip -o -sel clip)" &
-                echo "$!" >> "$pid_file"
-                ;;
-        "")     ;; # stay quiet when user quits the program during selection
-        *)      send_err "option not implemented";;
-esac
+main()
+{
+	[ -z "$DISPLAY" ] &&
+		menu="bemenu"
+
+	dep_check "$menu"
+
+	case "$(get_opt)" in
+	select)
+		dep_check "ffplay"
+		ffplay -volume 20 -nodisp -loop 0 "$amb_dir/$(get_ambs | "$menu" -p "  " -l 25)" &
+		echo "$!" >> "$pid_file"
+		;;
+	links)
+		dep_check "mpv"
+		mpv --no-video --no-resume-playback "$(get_link)" &
+		echo "$!" >> "$pid_file"
+		;;
+	random)
+		dep_check "ffplay"
+		ffplay -volume 20 -nodisp -loop 0 "$amb_dir/$(get_ambs | shuf -n1)" &
+		echo "$!" >> "$pid_file"
+		;;
+	stop)
+		while read -r process
+		do
+			kill -2 "$process"
+		done < "$pid_file"
+
+		rm "$pid_file"
+		;;
+	stream)
+		paste=
+		dep_check "mpv"
+
+		if [ -z "$DISPLAY" ]
+		then
+			dep_check "wl-paste"
+			paste="$(wl-paste)"
+		else
+			dep_check "xclip"
+			paste="$(xclip -o -sel clip)"
+		fi
+
+		mpv --no-video "$paste" &
+		echo "$!" >> "$pid_file"
+		;;
+	"")
+		;; # stay quiet when user quits the program during selection
+	*)
+		"option not implemented";;
+	esac
+}
+
+main