WIP Add auto-update workflow

.github/workflows/update.yml

@@ -0,0 +1,137 @@
+name: Auto Update
+
+on:
+  #schedule:
+  #  - cron:  '0 0 * * *'
+  workflow_dispatch:
+
+env:
+  REF_CORE: development-v6
+  REF_WEB: development-v6
+  REF_FTL: development-v6
+# @TODO when v6 is released these should be set to master
+
+jobs:
+  check:
+    concurrency: check
+    runs-on: ubuntu-latest
+    continue-on-error: true
+
+    outputs:
+      CORE_HASH:  ${{ steps.new-hashes.outputs.CORE_HASH }}
+      WEB_HASH:  ${{ steps.new-hashes.outputs.WEB_HASH }}
+      FTL_HASH:  ${{ steps.new-hashes.outputs.FTL_HASH }}
+
+    steps:
+      - name: Checkout own repository
+        uses: actions/checkout@v4
+
+      - name: Checkout pi-hole/pi-hole repository
+        uses: actions/checkout@v4
+        with:
+          repository: pi-hole/pi-hole
+          ref: ${{ env.REF_CORE }}
+          path: ./dev/core
+
+      - name: Checkout pi-hole/web repository
+        uses: actions/checkout@v4
+        with:
+          repository: pi-hole/web
+          ref: ${{ env.REF_WEB }}
+          path: ./dev/web
+
+      - name: Checkout pi-hole/FTL repository
+        uses: actions/checkout@v4
+        with:
+          repository: pi-hole/FTL
+          ref: ${{ env.REF_FTL }}
+          path: ./dev/FTL
+
+      - name: Set old hashes
+        id: old-hashes
+        run: |
+          echo "CORE_HASH=$(sed -n "s/^  REF_CORE: \([[:alnum:]_-]*\).*$/\1/p" ./.github/workflows/build.yml)" >> $GITHUB_OUTPUT
+          echo "WEB_HASH=$(sed -n "s/^  REF_WEB: \([[:alnum:]_-]*\).*$/\1/p" ./.github/workflows/build.yml)" >> $GITHUB_OUTPUT
+          echo "FTL_HASH=$(sed -n "s/^  REF_FTL: \([[:alnum:]_-]*\).*$/\1/p" ./.github/workflows/build.yml)" >> $GITHUB_OUTPUT
+
+      - name: Set new hashes
+        id: new-hashes
+        run: |
+          echo "CORE_HASH=$(git -C "./dev/core" rev-parse --abbrev-ref HEAD)" >> $GITHUB_OUTPUT
+          echo "WEB_HASH=$(git -C "./dev/web" rev-parse --abbrev-ref HEAD)" >> $GITHUB_OUTPUT
+          echo "FTL_HASH=$(git -C "./dev/FTL" rev-parse --abbrev-ref HEAD)" >> $GITHUB_OUTPUT
+
+      - name: Hashes for pi-hole/pi-hole are different
+        if: ${{ steps.old-hashes.outputs.CORE_HASH == steps.new-hashes.outputs.CORE_HASH }}
+        run: exit 1
+
+      - name: Hashes for pi-hole/web are different
+        if: ${{ steps.old-hashes.outputs.WEB_HASH == steps.new-hashes.outputs.WEB_HASH }}
+        run: exit 1
+
+      - name: Hashes for pi-hole/FTL are different
+        if: ${{ steps.old-hashes.outputs.FTL_HASH == steps.new-hashes.outputs.FTL_HASH }}
+        run: exit 1
+
+      - name: Apply patches (core)
+        id: patch-core
+        uses: ./.github/actions/patch
+        with:
+          patches_prefix: core
+          git_path: ./dev/core
+
+      - name: Apply patches (web)
+        id: patch-web
+        uses: ./.github/actions/patch
+        with:
+          patches_prefix: web
+          git_path: ./dev/web
+
+      - name: Apply patches (FTL)
+        id: patch-FTL
+        uses: ./.github/actions/patch
+        with:
+          patches_prefix: FTL
+          git_path: ./dev/FTL
+
+  update:
+    concurrency: update
+    needs: [check]
+    if: ${{ needs.check.result == 'success' }}
+    runs-on: ubuntu-latest
+    continue-on-error: true
+
+    #permissions:
+    #  contents: write
+
+    steps:
+      - name: Checkout own repository
+        uses: actions/checkout@v4
+
+      - name: Replace refs in build workflow
+        run: |
+          sed 's/  REF_CORE:.*$/  REF_CORE: ${{ needs.check.outputs.CORE_HASH }}/' -i ./.github/workflows/build.yml
+          sed 's/  REF_WEB:.*$/  REF_WEB: ${{ needs.check.outputs.WEB_HASH }}/' -i ./.github/workflows/build.yml
+          sed 's/  REF_FTL:.*$/  REF_FTL: ${{ needs.check.outputs.FTL_HASH }}/' -i ./.github/workflows/build.yml
+
+      - name: Is repository modified?
+        id: modified
+        run: |
+          echo "RESULT=$([ "git diff" != "" ] && echo yes || echo no)" >> $GITHUB_OUTPUT
+
+      - name: Create tag
+        if: ${{ steps.modified.outputs.RESULT == 'yes' }}
+        id: tag
+        run: echo "RESULT=$(bash ./scripts/tag.sh)" >> $GITHUB_OUTPUT
+
+      - name: Echo tag
+        run: echo ${{ steps.tag.outputs.RESULT }}
+
+      #- name: Commit and Push changes
+      #  if: ${{ steps.tag.outputs.RESULT != '' }}
+      #  uses: uses: stefanzweifel/git-auto-commit-action@v5
+      #  with:
+      #    commit_message: 'Automatic update to ${{ steps.tag.outputs.RESULT }}'
+      #    file_pattern: ./.github/workflow/build.yml
+      #    tagging_message: ${{ steps.tag.outputs.RESULT }}
+      #    push_options: --dry-run

scripts/tag.sh

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+#!/bin/bash
+# Made by Jack'lul <jacklul.github.io>
+
+REVISION=0
+TAG=""
+LIMIT=100
+
+while [ "$TAG" = "" ] || git tag | grep -q "$TAG"; do
+    REVISION=$((REVISION+1))
+    TAG=$(date +%Y.%m.%d)-$REVISION
+
+    LIMIT=$((LIMIT-1))
+    if [ $LIMIT -le 0 ]; then
+        exit 1
+    fi
+done
+
+echo "$TAG"