Prepare release pipeline

.github/workflows/gradle.yml

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+name: Java CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK
+      uses: actions/setup-java@v2
+      with:
+        distribution: 'temurin'
+        java-version: '17'
+    - name: Validate gradlew integrity
+      uses: gradle/wrapper-validation-action@v1
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.gradle/caches
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/build.gradle', '**/gradle-wrapper.properties') }}
+    - name: Build with Gradle
+      run: ./gradlew pmdMain build
+    - name: PMD report
+      uses: jwgmeligmeyling/pmd-github-action@v1
+      if: failure()
+      with:
+        path: '**/reports/pmd/main.xml'
+    - name: Stop Gradle
+      run: |
+        ./gradlew --stop
+    - name: Calculate artifact names
+      id: calculate_artifact_names
+      run: |
+        VERSION=$(awk -F '=' '/^version/ { print $2; }' build.properties)
+        BUILD=$(awk -F '=' '/build_number/ { print $2; }' build.properties)
+        echo "forge=build/libs/Zeta-${VERSION}-${BUILD}.jar" >> "$GITHUB_OUTPUT"
+    - name: Sign jars
+      env:
+        SIGNING_KEY: ${{ secrets.VIOLET_MOON_SIGNING_KEY }}
+      if: ${{ env.SIGNING_KEY != '' }}
+      run: |
+        echo "${SIGNING_KEY}" | gpg --import -
+        gpg --local-user "Violet Moon Signing Key" --armor \
+          --detach-sign ${{ steps.calculate_artifact_names.outputs.forge }}
+    - name: Archive Forge Artifacts
+      uses: actions/upload-artifact@v2
+      with:
+        name: Forge
+        path: |
+          ${{ steps.calculate_artifact_names.outputs.forge }}
+          ${{ steps.calculate_artifact_names.outputs.forge }}.asc
+    - name: Upload Releases
+      if: startsWith(github.ref, 'refs/tags/release-')
+      env:
+        GH_TOKEN: ${{ github.token }}
+        GIT_REF: ${{ github.ref }}
+        FORGE_JAR: ${{ steps.calculate_artifact_names.outputs.forge }}
+        CURSEFORGE_TOKEN: ${{ secrets.VAZKII_CURSEFORGE_TOKEN }}
+        MODRINTH_TOKEN: ${{ secrets.VAZKII_MODRINTH_TOKEN }}
+      run: |
+        scripts/upload_releases.sh

scripts/upload_releases.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# Remove 'refs/tags/' from front
+TAGNAME="${GIT_REF/#refs\/tags\/}"
+
+# Remove 'release-' from front
+VERSION="${TAGNAME/#release-}"
+MC_VERSION=$(echo "${VERSION}" | cut -d '-' -f 1)
+
+function release_github() {
+	echo >&2 'Creating GitHub Release'
+	local GH_RELEASE_RESPONSE
+	GH_RELEASE_RESPONSE="$(gh api \
+	   --method POST \
+	   -H "Accept: application/vnd.github+json" \
+	   -H "X-GitHub-Api-Version: 2022-11-28" \
+	   /repos/VazkiiMods/Zeta/releases \
+	   -f tag_name="${TAGNAME}")"
+	GH_RELEASE_PAGE=$(echo "$GH_RELEASE_RESPONSE" | jq -r .html_url)
+
+	echo >&2 'Uploading Forge Jar and Signature to GitHub'
+	gh release upload "${TAGNAME}" "${FORGE_JAR}#Forge Jar"
+	gh release upload "${TAGNAME}" "${FORGE_JAR}.asc#Forge Signature"
+}
+
+function release_modrinth() {
+	echo >&2 'Uploading Forge Jar to Modrinth'
+	local MODRINTH_FORGE_SPEC
+	MODRINTH_FORGE_SPEC=$(cat <<EOF
+{
+	"dependencies": [],
+	"version_type": "release",
+	"loaders": ["forge"],
+	"featured": false,
+	"project_id": "MVARlG2f",
+	"file_parts": [
+		"jar"
+	],
+	"primary_file": "jar"
+}
+EOF
+					   )
+
+	MODRINTH_FORGE_SPEC=$(echo "${MODRINTH_FORGE_SPEC}" | \
+							  jq --arg name "${VERSION}" \
+								 --arg mcver "${MC_VERSION}" \
+								 --arg changelog "${GH_RELEASE_PAGE}" \
+								 '.name=$ARGS.named.name | .version_number=$ARGS.named.name | .game_versions=[$ARGS.named.mcver] | .changelog=$ARGS.named.changelog')
+	curl 'https://api.modrinth.com/v2/version' \
+		 -H "Authorization: $MODRINTH_TOKEN" \
+		 -F "data=$MODRINTH_FORGE_SPEC" \
+		 -F "jar=@${FORGE_JAR}" # TODO modrinth doesn't allow asc files. Remember to readd "signature" to the spec when reenabling this. \ -F "signature=@${FORGE_JAR}.asc"
+}
+
+function release_curseforge() {
+	# Java versions, Loaders, and Environment tags are actually "game versions" (lmfao), as are real game versions.
+
+	# Hardcoded from https://minecraft.curseforge.com/api/game/version-types (which is undocumented, btw)
+	# I'm not betting on these changing any time soon, so hardcoding is ok
+	local CURSEFORGE_JAVA_VERSION=8326 # Java 17
+	local CURSEFORGE_FORGE_VERSION=7498
+	local CURSEFORGE_CLIENT_VERSION=9638
+	local CURSEFORGE_SERVER_VERSION=9639
+	# For the Minecraft one, don't hardcode so we don't have to remember to come change this every time.
+	# Each game version seems to be duplicated three times:
+	# Once with type ID 1 (unused?), once with its major-version-specific type ID, and once with the type ID for "Addons" 615
+	# We want the second one. Just dirtily pluck it out based on this.
+	local CURSEFORGE_GAME_VERSION
+	CURSEFORGE_GAME_VERSION=$(curl https://minecraft.curseforge.com/api/game/versions \
+								   -H 'Accept: application/json' \
+								   -H "X-Api-Token: ${CURSEFORGE_TOKEN}" | \
+								  jq --arg mcver "${MC_VERSION}" \
+									 'map(select(.name == $ARGS.named.mcver and .gameVersionTypeID != 1 and .gameVersionTypeID != 615)) | first | .id')
+
+	echo >&2 'Uploading Forge Jar to CurseForge'
+	local CURSEFORGE_FORGE_SPEC
+	CURSEFORGE_FORGE_SPEC=$(cat <<EOF
+{
+    "changelogType": "text",
+    "releaseType": "release"
+}
+EOF
+						 )
+
+	local CURSEFORGE_FORGE_GAMEVERS="[\
+$CURSEFORGE_JAVA_VERSION,\
+$CURSEFORGE_CLIENT_VERSION,\
+$CURSEFORGE_SERVER_VERSION,\
+$CURSEFORGE_FORGE_VERSION,\
+$CURSEFORGE_GAME_VERSION]"
+
+	CURSEFORGE_FORGE_SPEC=$(echo "$CURSEFORGE_FORGE_SPEC" | \
+								jq --arg changelog "$GH_RELEASE_PAGE" \
+								   --argjson gamevers "$CURSEFORGE_FORGE_GAMEVERS" \
+								   '.gameVersions=$ARGS.named.gamevers | .changelog=$ARGS.named.changelog')
+	curl 'https://minecraft.curseforge.com/api/projects/968868/upload-file' \
+		 -H "X-Api-Token: $CURSEFORGE_TOKEN" \
+		 -F "metadata=$CURSEFORGE_FORGE_SPEC" \
+		 -F "file=@$FORGE_JAR"
+	# TODO: Upload the asc as an 'Additional file'
+}
+
+release_github
+release_modrinth
+release_curseforge