Added Workflow

.github/workflows/generate_assets.yml

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+name: 'Generate Assets'
+on:
+  schedule:
+    - cron: "30 0,12 * * *" # Runs at 00:30 and 12:30, every day
+
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  actions: read
+  checks: write
+
+jobs:
+  check-version:
+    name: 'Check version'
+    runs-on: ubuntu-latest      
+
+    steps:
+      - name: 'Check for version change'
+        id: 'minecraft-manifest'
+        uses: MinecraftPlayground/minecraft-manifest@main
+        with:
+          token: ${{secrets.GITHUB_TOKEN}}
+
+      - name: 'Check for existing version'
+        id: 'check-existing-tag'
+        if: steps.minecraft-manifest.outputs.version-changed
+        uses: mukunku/tag-exists-action@v1.6.0
+        with:
+          tag: ${{steps.minecraft-manifest.outputs.version-current-snapshot}}
+
+    outputs:
+      generate-new: ${{steps.minecraft-manifest.outputs.version-changed && steps.check-existing-tag.outputs.exists == 'false'}}
+      version-current-snapshot: ${{steps.minecraft-manifest.outputs.version-current-snapshot}}
+      version-current-snapshot-url: ${{steps.minecraft-manifest.outputs.version-current-snapshot-url}}
+
+  generate-new-assets:
+    name: 'Generate new assets'
+    runs-on: ubuntu-latest
+    needs: [check-version]
+    if: needs.check-version.outputs.generate-new == 'true'
+    steps:
+      - name: 'Download JSON manifest file'
+        run: |
+          mkdir ./download
+          curl -L -o ./download/manifest.json ${{needs.check-version.outputs.version-current-snapshot-url}}
+          
+      - name: 'Downloading client.jar'
+        run: |
+          JAR_URL=$(jq -r '.downloads.client.url' ./download/manifest.json)
+          echo "Downloading client.jar from $JAR_URL"
+          curl -L -o ./download/client.jar $JAR_URL
+
+      - name: 'Extracting assets'
+        run: |
+          mkdir -p ./generated
+          unzip ./download/client.jar "pack.png" -d "./generated"
+          unzip ./download/client.jar "assets/*" -d "./generated"
+
+      - name: 'Uploading artifact'
+        uses: actions/upload-artifact@v4
+        with:
+          name: 'generated'
+          path: './generated'
+
+    outputs:
+      version-current-snapshot: ${{needs.check-version.outputs.version-current-snapshot}}
+
+  commit-and-tag-new-assets:
+    name: 'Commit and tag new assets'
+    runs-on: ubuntu-latest
+    needs: [generate-new-assets]
+    env: 
+      VERSION_CURRENT_SNAPSHOT: "${{needs.generate-new-assets.outputs.version-current-snapshot}}"
+
+    steps:
+      - name: 'Checkout repository'
+        uses: actions/checkout@v4
+
+      - name: 'Remove old assets'
+        run: |
+          git rm -rf --ignore-unmatch "./generated"
+      
+      - name: 'Add new assets'
+        uses: actions/download-artifact@v4
+        with:
+          name: 'generated'
+          path: './generated'
+
+      - name: 'Commit and push assets'
+        run: |
+          echo "Commit Message: New assets for version ${{env.VERSION_CURRENT_SNAPSHOT}}"
+          echo "Tag: ${{env.VERSION_CURRENT_SNAPSHOT}}"
+          echo "Tag Message: Release ${{env.VERSION_CURRENT_SNAPSHOT}}"
+          
+          git config --local user.name "github-actions[bot]"
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git add "./generated"
+          git commit -a -m "New assets for version ${{env.VERSION_CURRENT_SNAPSHOT}}" || exit 0
+          git tag -a "${{env.VERSION_CURRENT_SNAPSHOT}}" -m "Release ${{env.VERSION_CURRENT_SNAPSHOT}}"
+          git push origin main --tags

.gitignore

@@ -0,0 +1,2 @@
+.vscode/
+dist/

README.md

@@ -1 +1,5 @@
-# data
+# Version controlled history of Minecraft's generated assets
+This repository runs a workflow every 12 hours to check for a new version and generate new assets for the latest version. New versions are tagged and pushed to the repository.
+
+## Disclaimer
+This repository is working under the assumption that, because they intentionally provide a public API for downloading the `client.jar`, Mojang does not have anything against the resulting generated assets existing somewhere on the internet for public consumption. If ever this assumption is contradicted, the repository will be promptly removed.