Decouple macOS from the release job

apfel is a laptop that's frequently asleep/offline; gating the release
on it (needs: [macos, linux, flatpak]) meant the whole release stalled
whenever it wasn't reachable. macos now appends its own asset directly
via the Forgejo API once it finishes, polling for the release that
linux+flatpak already created/overrode, instead of going through
actions/forgejo-release (which can only blind-create, not append to an
existing release).

.forgejo/workflows/release.yml

@@ -30,14 +30,48 @@ jobs:
           GITHUB_TOKEN: ""
       - run: mv target/release/carrier target/release/carrier-macos-arm64
         working-directory: carrier
-      # actions/upload-artifact@v4 talks the newer Artifacts-v2 protocol,
+      # This runner is a laptop that's frequently asleep/offline, so this
-      # which Forgejo's server rejects ("not currently supported on GHES").
+      # job must not gate the release (and must not be gated by it either).
-      # forgejo/upload-artifact is Forgejo's own patched fork with that
+      # Instead of going through actions/forgejo-release - which only knows
-      # check disabled - needed on both upload and download ends.
+      # how to blind-create a release, not append to one that may already
-      - uses: https://code.forgejo.org/forgejo/upload-artifact@v5
+      # exist - this polls for the release the linux+flatpak job creates
-        with:
+      # and appends its own asset directly via the Forgejo API, landing
-          name: carrier-macos-arm64
+      # next to whatever binaries are already there. grep (not jq, whose
-          path: carrier/target/release/carrier-macos-arm64
+      # presence here isn't guaranteed) is safe for pulling the id out: per
+      # Forgejo's structs.Release, ID is the first declared field and Go's
+      # encoding/json marshals in declaration order, ahead of the nested
+      # per-asset "id" fields in the "assets" array.
+      - run: |
+          REPO="${{ forge.repository }}"
+          TAG="${{ forge.ref_name }}"
+          FORGEJO="${{ env.FORGEJO_SERVER_URL }}"
+          FORGEJO="${FORGEJO%%/}"
+          TOKEN="${{ forge.token }}"
+          FILE="target/release/carrier-macos-arm64"
+          NAME="carrier-macos-arm64"
+
+          release_id=""
+          for i in $(seq 1 40); do
+            body=$(curl --retry 5 -sS -H "Authorization: token $TOKEN" "$FORGEJO/api/v1/repos/$REPO/releases/tags/$TAG")
+            release_id=$(echo "$body" | grep -o '"id":[0-9]*' | head -1 | grep -o '[0-9]*')
+            if [ -n "$release_id" ]; then
+              break
+            fi
+            echo "release for $TAG not ready yet, waiting 15s ($i/40)"
+            sleep 15
+          done
+
+          if [ -z "$release_id" ]; then
+            echo "release for $TAG never appeared after 10 minutes" >&2
+            exit 1
+          fi
+
+          curl --retry 5 --fail -sS -X POST \
+            -H "Authorization: token $TOKEN" \
+            -H "Content-Type: multipart/form-data" \
+            -F "attachment=@$FILE" \
+            "$FORGEJO/api/v1/repos/$REPO/releases/$release_id/assets?name=$NAME"
+        working-directory: carrier
 
   linux:
     runs-on: linux-x86_64
@@ -105,9 +139,12 @@ jobs:
   # false) or races a delete-and-recreate that can wipe out the first job's
   # just-uploaded assets (override: true). So platform jobs only ever
   # produce artifacts; exactly one job, gated on both finishing, does the
-  # single release create + upload.
+  # single release create + upload. macos is deliberately left out of
+  # needs (see that job): re-running this job after macos has appended its
+  # asset will wipe that asset out via override - rerun macos again after
+  # to restore it.
   release:
-    needs: [macos, linux, flatpak]
+    needs: [linux, flatpak]
     runs-on: linux-x86_64
     steps:
       - uses: https://code.forgejo.org/forgejo/download-artifact@v7