support multiple resolutions

info/info.go

@@ -159,14 +159,24 @@ func GetInfoString(options map[string]string) string {
 			lines++
 
 		case "resolution":
-			resolution := getRawScreenResolution()
+			resolutions := getRawScreenResolutions()
 
-			output += formatAndColor(
-				"\x1b[%vG${caccent}Resolution${creset}: %v\n",
-				offset,
-				resolution,
-			)
-			lines++
+			for _, res := range resolutions {
+				output += formatAndColor(
+					"\x1b[%vG${caccent}Resolution${creset}: %v\n",
+					offset,
+					res,
+				)
+				lines++
+			}
+
+			if len(resolutions) == 0 {
+				output += formatAndColor(
+					"\x1b[%vG${caccent}Resolution${creset}: n/a\n",
+					offset,
+				)
+				lines++
+			}
 
 		case "cpu":
 			cpu := getRawCpu()

info/raw_darwin.go

@@ -139,19 +139,19 @@ func getRawGpus() []string {
 }
 
 // Returns main screen resolution
-func getRawScreenResolution() string {
+func getRawScreenResolutions() []string {
 	out, err := exec.Command("system_profiler", "SPDisplaysDataType").Output()
 	if err != nil {
-		return "n/a"
+		return []string{}
 	}
 
 	contents := string(out)
 	match := extractResolutionRegex.FindStringSubmatch(contents)
 	if len(match) == 0 {
-		return "n/a"
+		return []string{}
 	}
 
-	return match[1]
+	return []string{match[1]}
 }
 
 // Returns OS pretty name

info/raw_linux.go

@@ -36,6 +36,9 @@ var (
 	getGpuModelRegex = regexp.MustCompile(`.*\[(.*)\]`)
 )
 
+// Regex used to extract resolutions from "xrandr --nograb --current"
+var getResolutionRegex = regexp.MustCompile(`connected(?: primary)? (\d+)x(\d+)`)
+
 // Regex used to remove too much spaces between words
 var removeExtraSpacesRegex = regexp.MustCompile(`\s+`)
 
@@ -216,13 +219,25 @@ func getRawGpus() []string {
 }
 
 // Returns main screen resolution
-func getRawScreenResolution() string {
-	raw, err := os.ReadFile("/sys/class/graphics/fb0/virtual_size")
+func getRawScreenResolutions() []string {
+	out, err := exec.Command("xrandr", "--nograb", "--current").Output()
 	if err != nil {
-		return "n/a"
+		return []string{}
+	}
+
+	contents := string(out)
+	match := getResolutionRegex.FindAllStringSubmatch(contents, -1)
+	if len(match) == 0 {
+		return []string{}
+	}
+
+	resolutions := []string{}
+
+	for _, resMatch := range match {
+		resolutions = append(resolutions, fmt.Sprintf("%vx%v", resMatch[1], resMatch[2]))
 	}
 
-	return strings.Replace(string(raw), ",", "x", -1)
+	return resolutions
 }
 
 // Returns OS pretty name