feat(zsh): add mkcd() & new icat() function

dot_zshrc

@@ -48,14 +48,59 @@ if [ -x /usr/bin/dircolors ]; then
   alias grep='grep --color=auto'
 fi
 
+# Make directories & cd into them
+function mkcd() {
+  mkdir -p $@ && cd ${@:$#}
+}
+
 # Display images in the terminal
 function icat() {
-  if [ "$TERM_PROGRAM" = "WezTerm" ]; then
-    wezterm imgcat "$@"
-  elif [ "$TERM" = "xterm-kitty" ]; then
-    kitty +kitten icat "$@"
+  function display() {
+    if [[ "$TERM_PROGRAM" == "WezTerm" ]]; then
+      cat - | wezterm imgcat
+    elif [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
+      cat - | $(alias imgcat | cut -d "=" -f2-)
+    elif [[ "$TERM" = "xterm-kitty" ]]; then
+      cat - | kitty +kitten icat
+    else
+      echo "No image viewer defined for this terminal" && return 1
+    fi
+    return 0
+  }
+  function displaySVG() {
+    [[ ! -x "$(command -v convert)" ]] && echo "convert not found, install imagemagick" && return 1
+    convert -background none -density 192 - png:- | display
+  }
+  function displayVID() {
+    ffmpeg -i "$1" -vf scale=720:-1 -r 10 -f image2pipe -vcodec ppm - &>/dev/null | convert -delay 10 -loop 1 - gif:- | display
+  }
+
+  if [ ! -t 0 ]; then
+    input="$(cat - | base64)"
+    headers="$(echo "$input" | base64 -d | file - --mime-type | cut -d " " -f2-)"
+
+    case $headers in
+      *svg*) echo "$input" | base64 -d | displaySVG ;;
+      *video*) echo "haven't figured this part out yet" && return 1;;
+      *image*) echo "$input" | base64 -d | display ;;
+      *) echo "Unknown file type" && return 1 ;;
+    esac
+  elif [[ "$1" == http* ]]; then
+    case "$(curl -sSLI "$1" | grep -i "^content-type:")" in
+      *svg*) curl -fsSL "$1" | displaySVG ;;
+      *video*) echo "haven't figured this part out yet" && return 1;;
+      *image*) curl -fsSL "$1" | display ;;
+      *) echo "Unknown file type" && return 1 ;;
+    esac
   else
-    echo 'No image viewer defined for this terminal'
+    [[ -z "$1" ]] && echo "Usage: icat <file|url>" && return 1
+    [[ ! -f "$1" ]] && echo "File not found: $1" && return 1
+    case "$(file -b --mime-type "$1")" in
+      *svg*) cat "$1" | displaySVG ;;
+      *video*) displayVID $1 ;;
+      *image*) cat "$1" | display ;;
+      *) echo "Unknown file type" && return 1 ;;
+    esac
   fi
 }