Allow to specify git directory when releasing

.forgejo/workflows/cache.yaml

@@ -18,7 +18,7 @@ jobs:
       - name: Push Pim's blog to Nix cache
         run: /bin/attic push home blog-pim
       - name: Push Pim's blog to container registry
-        run: nix --extra-experimental-features "nix-command flakes" run ./checkout#packages.x86_64-linux.release ./checkout#packages.x86_64-linux.blog-pim blog-pim
+        run: nix --extra-experimental-features "nix-command flakes" run ./checkout#packages.x86_64-linux.release ./checkout#packages.x86_64-linux.blog-pim blog-pim ./checkout
       - name: Build forgejo-nix-action
         run: nix build --extra-experimental-features nix-command --extra-experimental-features flakes --no-allow-dirty --out-link forgejo-nix-action ./checkout#packages.x86_64-linux.forgejo-nix-action
       - name: Push forgjeo-nix-action to Nix cache

release.sh

@@ -5,17 +5,18 @@ IFS=$'\n\t'
 
 flakeref="${1-}"
 name="${2-}"
+gitdir="${3:-.}"
 
 if [ -z "$flakeref" ] || [ -z "$name" ];
   then
-    echo "Usage: $0 FLAKEREF NAME"
+    echo "Usage: $0 FLAKEREF NAME [GITDIR]"
     exit 1
 fi
 
 imagename=$(nix eval --no-allow-dirty --raw $flakeref.imageName)
 imagetag=$(nix eval --no-allow-dirty --raw $flakeref.imageTag)
 image=$(nix build --no-allow-dirty $flakeref --print-out-paths --no-link)
-gitrev=$(git rev-parse HEAD)
+gitrev=$(git --git-dir $gitdir/.git --work-tree $gitdir rev-parse HEAD)
 
 docker load < $image
 docker tag $imagename:$imagetag git.kun.is/home/$name:$gitrev