Automate Orcsoberfest/Percht Island updates

Closes #104.

.github/workflows/enable-orcsoberfest-island-pack.yml

@@ -0,0 +1,25 @@
+name: 'Enable Orcsoberfest Island pack'
+
+on:
+  schedule:
+    # Run annually at 04:00 UTC on February 1st.
+    - cron: '0 4 1 2 *'
+  workflow_dispatch:
+
+jobs:
+  import-markers:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+      - name: Install dependencies
+        run: npm install
+      - name: Enable pack
+        run: |
+          scripts/enable-pack.sh orcsoberfest
+          git config user.name 'Mathias Bynens'
+          git config user.email '[email protected]'
+          git commit data/markers.json -m 'Enable Orcsoberfest Island maps' -m 'This patch replaces the Percht Island maps (and their markers) with the Orcsoberfest Island maps (and their markers) in preparation for the upcoming event.'
+          git push

.github/workflows/enable-percht-island.yml

@@ -0,0 +1,25 @@
+name: 'Enable Percht Island pack'
+
+on:
+  schedule:
+    # Run annually at 04:00 UTC on December 1st.
+    - cron: '0 4 1 12 *'
+  workflow_dispatch:
+
+jobs:
+  import-markers:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+      - name: Install dependencies
+        run: npm install
+      - name: Enable pack
+        run: |
+          scripts/enable-pack.sh percht
+          git config user.name 'Mathias Bynens'
+          git config user.email '[email protected]'
+          git commit data/markers.json -m 'Enable Percht Island maps' -m 'This patch replaces the Orcsoberfest Island maps (and their markers) with the Percht Island maps (and their markers) in preparation for the upcoming event.'
+          git push

scripts/enable-pack.sh

@@ -3,11 +3,14 @@
 # Navigate to the root of the repository.
 cd "$(dirname "${BASH_SOURCE}")/..";
 
+# Ensure `tibia-maps` is in the PATH on CI.
+PATH="${PATH}:$(pwd)/node_modules/.bin";
+
 if [ -z "${1}" ]; then
 	echo 'No argument supplied. Example usage:';
 	echo '';
-	echo './scripts/enable-pack.sh orcsoberfest';
-	echo './scripts/enable-pack.sh percht';
+	echo 'scripts/enable-pack.sh orcsoberfest';
+	echo 'scripts/enable-pack.sh percht';
 	exit 0;
 fi;