✨ Feature: update linux.sh (#134)

Author: zhumengu

src/utils/clipboard/linux.sh

@@ -1,34 +1,49 @@
 #!/bin/sh
-if [ "$XDG_SESSION_TYPE" = "x11" ]; then
-  # require xclip(see http://stackoverflow.com/questions/592620/check-if-a-program-exists-from-a-bash-script/677212#677212)
-  command -v xclip >/dev/null 2>&1 || { echo >&1 "no xclip"; exit 1; }
-  # write image in clipboard to file (see http://unix.stackexchange.com/questions/145131/copy-image-from-clipboard-to-file)
-  filePath=`xclip -selection clipboard -o 2>/dev/null | grep ^file:// | cut -c8-`
-  if [ ! -n "$filePath" ] ;then
-    if
-        xclip -selection clipboard -target image/png -o >/dev/null 2>&1
-    then
-        xclip -selection clipboard -target image/png -o >$1 2>/dev/null
-        echo $1
+
+if [ -z "$DISPLAY" ]; then
+    echo "no support" >&2
+    exit 1
+fi
+
+case "$XDG_SESSION_TYPE" in
+wayland)
+    command -v wl-copy >/dev/null 2>&1 || {
+        echo >&2 "no wl-clipboard"
+        exit 1
+    }
+    filePath=$(wl-copy -o 2>/dev/null | grep ^file:// | cut -c8-)
+    if [ -z "$filePath" ]; then
+        if
+            wl-copy -t image/png image/png -o >"$1" 2>/dev/null
+        then
+            echo "$1"
+        else
+            rm -f "$1"
+            echo "no image"
+        fi
     else
-        echo "no image"
+        echo "$filePath"
     fi
-  else
-    echo $filePath
-  fi
-elif [ "$XDG_SESSION_TYPE" = "wayland" ]; then
-  command -v wl-copy >/dev/null 2>&1 || { echo >&1 "no wl-clipboard"; exit 1; }
-  filePath=`wl-copy -o 2>/dev/null | grep ^file:// | cut -c8-`
-  if [ ! -n "$filePath" ] ;then
-    if
-        wl-copy -t image/png -o >/dev/null 2>&1
-      then
-        wl-copy -t image/png image/png -o >$1 2>/dev/null
-        echo $1
+    ;;
+x11 | tty)
+    # require xclip(see http://stackoverflow.com/questions/592620/check-if-a-program-exists-from-a-bash-script/677212#677212)
+    command -v xclip >/dev/null 2>&1 || {
+        echo >&2 "no xclip"
+        exit 1
+    }
+    # write image in clipboard to file (see http://unix.stackexchange.com/questions/145131/copy-image-from-clipboard-to-file)
+    filePath=$(xclip -selection clipboard -o 2>/dev/null | grep ^file:// | cut -c8-)
+    if [ -z "$filePath" ]; then
+        if
+            xclip -selection clipboard -target image/png -o >"$1" 2>/dev/null
+        then
+            echo "$1"
+        else
+            rm -f "$1"
+            echo "no image"
+        fi
     else
-        echo "no image"
+        echo "$filePath"
     fi
-  else
-    echo $filePath
-  fi
-fi
+    ;;
+esac