Move to Gitea: install scripts, links and a release script that builds the DEBs, RPMs, Arch package and a new AppImage

scripts/install/nixos.sh

@@ -9,14 +9,11 @@ if [ "$(uname -m)" != x86_64 ]; then
     echo "OmaPhoto's flake builds for x86_64 alone." >&2
     exit 1
 fi
-# The newest release's tag, as GitHub redirects to it.
-latest=$(curl -fsSLI --proto '=https' -o /dev/null -w '%{url_effective}' https://github.com/ZacharyZhang-NY/OmaPhoto/releases/latest)
-tag=${latest##*/}
-case "$tag" in
-v[0-9]*) ;;
-*)
-    echo "No release found at $latest." >&2
+repo=https://git.zacharyzhang.com/ZacharyZhang-NY/OmaPhoto
+# The newest release's tag, from Gitea's API.
+tag=$(curl -fsSL --proto '=https' https://git.zacharyzhang.com/api/v1/repos/ZacharyZhang-NY/OmaPhoto/releases/latest | grep -o '"tag_name":"v[^"]*"' | cut -d'"' -f4) || tag=
+if [ -z "$tag" ]; then
+    echo "No release found at $repo/releases." >&2
     exit 1
-    ;;
-esac
-nix --extra-experimental-features "nix-command flakes" profile install "github:ZacharyZhang-NY/OmaPhoto/$tag"
+fi
+nix --extra-experimental-features "nix-command flakes" profile install "git+$repo?ref=refs/tags/$tag"