Fix caching on build

- Fix cache on x64
- Run tar as root

.github/workflows/build.yml

@@ -160,42 +160,49 @@ jobs:
       with:
         node-version: 18
 
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install libarchive-tools zsh crossbuild-essential-${{matrix.arch}}
+
+    - name: Setup tar to run as root
+      run: sudo chmod u+s "$(command -v tar)"
+      if: matrix.build-arch != 'x64'
+
     - name: Download cached sysroot
       uses: actions/cache@v3
-      id: cache-sysroot
+      id: dl-cached-sysroot
       if: matrix.build-arch !='x64'
       with:
         key: sysroot-${{matrix.build-arch}}
         path: /${{matrix.build-arch}}-sysroot
 
-    - name: Install deps (amd64)
+    - name: Setup crossbuild sysroot
       run: |
-        sudo apt-get update
-        sudo apt-get install libarchive-tools zsh crossbuild-essential-${{matrix.arch}}
+        sudo apt-get update -y && sudo apt-get install debootstrap qemu-user-static binfmt-support -y
+        sudo qemu-debootstrap --include=libfontconfig1-dev,libsecret-1-dev,libnss3,libatk1.0-0,libatk-bridge2.0-0,libgdk-pixbuf2.0-0,libgtk-3-0,libgbm1 --variant=buildd --exclude=snapd --components=main,restricted,universe,multiverse --extractor=dpkg-deb --arch ${{matrix.arch}} bionic /${{matrix.build-arch}}-sysroot/ http://ports.ubuntu.com/ubuntu-ports/
+        sudo find /${{matrix.build-arch}}-sysroot -type l -lname '/*' -exec sh -c 'file="$0"; dir=$(dirname "$file"); target=$(readlink "$0"); prefix=$(dirname "$dir" | sed 's@[^/]*@\.\.@g'); newtarget="$prefix$target"; ln -snf $newtarget $file' {} \; ;
+      if: matrix.build-arch != 'x64' && steps.dl-cached-sysroot.outputs.cache-hit != 'true'
 
-    - name: Setup Crossbuild (${{matrix.arch}})
+    - name: Setup env to use ${{matrix.build-arch}} sysroot
       run: |
-          echo "CFLAGS=--sysroot=/${{matrix.build-arch}}-sysroot/" >> $GITHUB_ENV
-          echo "CXXFLAGS=--sysroot=/${{matrix.build-arch}}-sysroot/" >> $GITHUB_ENV
-          echo "LDFLAGS=--sysroot=/${{matrix.build-arch}}-sysroot/" >> $GITHUB_ENV
-
-          [[ ${npm_config_arch} == 'arm' ]] && echo "npm_config_arch=armv7l" >> $GITHUB_ENV
+        echo "CFLAGS=--sysroot=/${{matrix.build-arch}}-sysroot/" >> $GITHUB_ENV
+        echo "CXXFLAGS=--sysroot=/${{matrix.build-arch}}-sysroot/" >> $GITHUB_ENV
+        echo "LDFLAGS=--sysroot=/${{matrix.build-arch}}-sysroot/" >> $GITHUB_ENV
 
-          if [[ ${{matrix.arch}} == 'armhf' ]]; then
-            echo "PKG_CONFIG_PATH=/${{matrix.build-arch}}-sysroot/usr/lib/pkgconfig/:/${{matrix.build-arch}}-sysroot/usr/lib/arm-linux-gnueabihf/pkgconfig/" >> $GITHUB_ENV
-          elif [[ ${{matrix.arch}} == 'arm64' ]]; then
-            echo "PKG_CONFIG_PATH=/${{matrix.build-arch}}-sysroot/usr/lib/pkgconfig/:/${{matrix.build-arch}}-sysroot/usr/lib/aarch64-linux-gnu/pkgconfig/" >> $GITHUB_ENV
-          fi
+        [[ ${npm_config_arch} == 'arm' ]] && echo "npm_config_arch=armv7l" >> $GITHUB_ENV
 
-          sudo apt-get update -y && sudo apt-get install debootstrap qemu-user-static binfmt-support -y
-          sudo qemu-debootstrap --include=libfontconfig1-dev,libsecret-1-dev,libnss3,libatk1.0-0,libatk-bridge2.0-0,libgdk-pixbuf2.0-0,libgtk-3-0,libgbm1 --variant=buildd --exclude=snapd --components=main,restricted,universe,multiverse --extractor=dpkg-deb --arch ${{matrix.arch}} bionic /${{matrix.build-arch}}-sysroot/ http://ports.ubuntu.com/ubuntu-ports/
-          sudo find /${{matrix.build-arch}}-sysroot -type l -lname '/*' -exec sh -c 'file="$0"; dir=$(dirname "$file"); target=$(readlink "$0"); prefix=$(dirname "$dir" | sed 's@[^/]*@\.\.@g'); newtarget="$prefix$target"; ln -snf $newtarget $file' {} \; ;
-      if: matrix.build-arch != 'x64' && steps.cache-sysroot.outputs.cache-hit != 'true'
+        if [[ ${{matrix.arch}} == 'armhf' ]]; then
+          echo "PKG_CONFIG_PATH=/${{matrix.build-arch}}-sysroot/usr/lib/pkgconfig/:/${{matrix.build-arch}}-sysroot/usr/lib/arm-linux-gnueabihf/pkgconfig/" >> $GITHUB_ENV
+        elif [[ ${{matrix.arch}} == 'arm64' ]]; then
+          echo "PKG_CONFIG_PATH=/${{matrix.build-arch}}-sysroot/usr/lib/pkgconfig/:/${{matrix.build-arch}}-sysroot/usr/lib/aarch64-linux-gnu/pkgconfig/" >> $GITHUB_ENV
+        fi
+      if: matrix.build-arch != 'x64'
 
     - name: Install npm_modules (amd64)
       run: |
-          npm i -g yarn node-gyp
-          yarn --network-timeout 1000000 --arch=${{matrix.build-arch}} --target-arch=${{matrix.build-arch}}
+        npm i -g yarn node-gyp
+        yarn --network-timeout 1000000 --arch=${{matrix.build-arch}} --target-arch=${{matrix.build-arch}}
 
     - name: Webpack (${{matrix.arch}})
       run: yarn run build --arch=${{matrix.build-arch}} --target_arch=${{matrix.build-arch}}