add block spotify

README.md

@@ -9,6 +9,7 @@ Blocks compatible with [i3blocks](https://github.com/vivien/i3blocks).
 * `tmux` for `app` and `date` blocks
 * `df` for `du` block
 * `xdg-open` for `du` block
+* `playerctl` for `spotify` block
 
 ## Installation
 
@@ -68,6 +69,12 @@ Show indicator of RSS.
 rss <block_name> <feed_url> <feed_reader_url> <foreground_color_when_no_item> <foreground_color_when_items>
 ```
 
+Show current song played (spotify).
+
+```
+spotify
+```
+
 Show volume.
 
 ```

blocks/spotify/main.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+	r "gitnet.fr/deblan/i3-blocks-go/rendering"
+	"os"
+	"os/exec"
+)
+
+func GetMetadata(metadata string) string {
+	output, _ := exec.Command("playerctl", "-p", "spotify", "metadata", metadata).Output()
+	data := string(output)
+
+	if len(data) > 20 {
+		data = fmt.Sprintf("%s…", data[0:20])
+	}
+
+	return data
+}
+
+func GetTitle() string {
+	return GetMetadata("xesam:title")
+}
+
+func GetArtist() string {
+	return GetMetadata("xesam:artist")
+}
+
+func main() {
+	title := GetTitle()
+	artist := GetArtist()
+
+	if title == "" {
+		return
+	}
+
+	label := r.TextWithPadding(artist, r.FB{
+		Foreground: r.Color("grey1"),
+		Background: r.Color("black3"),
+	})
+
+	value := r.TextWithPadding(title, r.FB{
+		Foreground: r.Color("grey2"),
+		Background: r.Color("black1"),
+	})
+
+	if os.Getenv("BLOCK_BUTTON") == "1" {
+		exec.Command("i3-msg", `workspace "6. MEDIA"`).Output()
+	}
+
+	options := r.NewBlockOptions()
+	options.FullText = fmt.Sprintf("%s%s", label, value)
+	block := r.Block("spotify", options)
+
+	fmt.Println(block)
+}