Add manual release announcement dispatch

.github/workflows/discord-release.yml

@@ -3,32 +3,53 @@ name: Announce release on Discord
 on:
   release:
     types: [published]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: Release tag to announce
+        required: true
+        type: string
 
-permissions: {}
+permissions:
+  contents: read
 
 jobs:
   announce:
-    if: ${{ !github.event.release.prerelease }}
     runs-on: ubuntu-latest
 
     steps:
       - name: Send Discord announcement
         env:
           DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
-          RELEASE_NAME: ${{ github.event.release.name }}
-          RELEASE_TAG: ${{ github.event.release.tag_name }}
-          RELEASE_URL: ${{ github.event.release.html_url }}
-          RELEASE_BODY: ${{ github.event.release.body }}
+          RELEASE_TAG_INPUT: ${{ inputs.tag }}
           REPO: ${{ github.repository }}
+          GH_TOKEN: ${{ github.token }}
         run: |
           test -n "$DISCORD_WEBHOOK_URL"
 
+          if [ "$GITHUB_EVENT_NAME" = "workflow_dispatch" ]; then
+            test -n "$RELEASE_TAG_INPUT"
+            curl --fail-with-body \
+              -H "Accept: application/vnd.github+json" \
+              -H "Authorization: Bearer $GH_TOKEN" \
+              -H "X-GitHub-Api-Version: 2022-11-28" \
+              "$GITHUB_API_URL/repos/$REPO/releases/tags/$RELEASE_TAG_INPUT" \
+              > release.json
+          else
+            jq '.release' "$GITHUB_EVENT_PATH" > release.json
+          fi
+
+          if [ "$(jq -r '.prerelease' release.json)" = "true" ]; then
+            echo "Skipping prerelease."
+            exit 0
+          fi
+
           jq -n \
             --arg repo "$REPO" \
-            --arg name "$RELEASE_NAME" \
-            --arg tag "$RELEASE_TAG" \
-            --arg url "$RELEASE_URL" \
-            --arg body "$RELEASE_BODY" \
+            --arg name "$(jq -r '.name // ""' release.json)" \
+            --arg tag "$(jq -r '.tag_name' release.json)" \
+            --arg url "$(jq -r '.html_url' release.json)" \
+            --arg body "$(jq -r '.body // ""' release.json)" \
             '($body | if length > 1500 then .[:1500] + "...\n\n[Read more](" + $url + ")" else . end) as $description |
             {
               username: "Basecoat Releases",