add webp script

.github/workflows/bundle.sh

@@ -0,0 +1,33 @@
+#/bin/sh
+set -e
+PACKAGE=libwebp
+
+# Update
+pacman -Sy
+OUTPUT=$(mktemp -d)
+
+pkgs=$(echo mingw-w64-{i686,x86_64}-${PACKAGE})
+URLS=$(pacman -Sp $pkgs --cache=$OUTPUT)
+VERSION=$(pacman -Si mingw-w64-x86_64-${PACKAGE} | awk '/^Version/{print $3}')
+
+# Set version for next step
+echo "::set-output name=VERSION::${VERSION}"
+echo "::set-output name=PACKAGE::${PACKAGE}"
+echo "Bundling $PACKAGE-$VERSION"
+echo "# $PACKAGE $VERSION" > README.md
+echo "" >> README.md
+
+for URL in $URLS; do
+  curl -OLs $URL
+  FILE=$(basename $URL)
+  echo "Extracting: $FILE"
+  echo " - $FILE" >> readme.md
+  tar xf $FILE -C ${OUTPUT}
+  unlink $FILE
+done
+rm -Rf lib
+mkdir -p lib
+cp -Rf ${OUTPUT}/mingw64/include .
+cp -Rf ${OUTPUT}/mingw64/lib lib/x64
+cp -Rf ${OUTPUT}/mingw32/lib lib/i386
+ls -ltrRh .

.github/workflows/bundle.yml

@@ -0,0 +1,30 @@
+name: bundle binaries
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+      - name: Prepare git
+        run: |
+          git config --global core.autocrlf false
+          git config --global user.email '[email protected]'
+          git config --global user.name  'Jeroen Ooms (via CI)'
+      - uses: actions/checkout@v3
+      - uses: r-windows/install-rtools@master
+      - id: download
+        name: Download libraries
+        run: |
+          cd $(cygpath ${GITHUB_WORKSPACE})
+          .github/workflows/bundle.sh
+        shell: c:\rtools40\usr\bin\bash.exe --login {0}
+      - name: Push binaries
+        run: |
+          version=${{ steps.download.outputs.VERSION }}
+          git add README.md include lib*
+          git commit -m "Bundle $version ($(date +%F))" || exit 0
+          git tag $version
+          git push origin master $version
+        shell: bash