set up exports

assets/build-icons.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# requires imagemagick and png2icns (usually found in libicns)
+
+convert logo.svg logo.png
+
+convert \
+  -density 300 \
+  -define icon:auto-resize=256,128,96,64,48,32,16 \
+  -background none \
+  logo.svg logo.ico
+
+
+# see: https://gist.github.com/plroebuck/af19a26c908838c7f9e363c571199deb
+
+icnsfilename="logo"
+iconsetdirname=$(mktemp -d -t logo-XXXXXXXXXX)
+sizes=( 16 32 128 256 512 )
+#densities=( 72 144 )
+densities=( 72 )
+
+for size in "${sizes[@]}"
+do
+    dimen="${size}x${size}"
+    for density in "${densities[@]}"
+    do
+        if [ "${density}" == "72" ];
+        then
+            ## std
+            resolution="${dimen}"
+            scale=""
+        else
+            ## hires
+            resolution="$(( $size * 2 ))x$(( $size * 2 ))"
+            scale="@2x"
+        fi
+        pngfilename="${iconsetdirname}/icon_${dimen}${scale}.png"
+        #echo \
+        convert \
+           -background "none" \
+           -density "${density}" \
+           -resize "${resolution}!" \
+           -units "PixelsPerInch" \
+           logo.svg "${pngfilename}"
+        if [ "$?" -ne 0 ]; then
+            echo "error creating icon file: ${pngfilename}" >&2
+            exit 1
+        else
+          echo "wrote temp icon file: ${pngfilename}" >&2
+        fi
+    done
+done
+
+
+png2icns logo.icns "${iconsetdirname}"/icon_*.png