Run checkrefs.py as Gitea Actions workflow

.gitea/workflows/checkrefs.yml

@@ -0,0 +1,20 @@
+---
+name: checkrefs
+on:
+  - push
+  - pull_request
+jobs:
+  checkrefs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+      - name: Install lxml
+        run: pip3 install lxml
+      - name: Workaround for authentication problem with LFS
+        # https://gitea.com/gitea/act_runner/issues/164
+        run: git config --local http.${{ gitea.server_url }}/${{ gitea.repository }}.git/info/lfs/objects/.extraheader ''
+      - name: Download necessary LFS assets
+        run: git lfs pull -I binaries/data/mods/public/maps
+      - name: Check for missing references
+        run: ./source/tools/entity/checkrefs.py

build/jenkins/dockerfiles/tools.Dockerfile

@@ -1,13 +0,0 @@
-FROM python:3.12-slim-bookworm
-
-ARG DEBIAN_FRONTEND=noninteractive
-ARG DEBCONF_NOWARNINGS="yes"
-RUN apt -qq update && apt install -qqy --no-install-recommends \
-      git \
-      git-lfs \
-      subversion \
- && apt clean
-
-RUN git lfs install --system --skip-smudge
-
-RUN pip3 install --upgrade lxml

build/jenkins/pipelines/checkrefs.Jenkinsfile

@@ -1,45 +0,0 @@
-/* Copyright (C) 2024 Wildfire Games.
- * This file is part of 0 A.D.
- *
- * 0 A.D. is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 0 A.D. is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-// This pipeline runs source/tools/entity/checkrefs.py to identify
-// mistakes and oversights in references to game content (assets,
-// templates, etc).
-
-pipeline {
-	agent {
-		dockerfile {
-			label 'LinuxAgent'
-			customWorkspace 'workspace/checkrefs'
-			dir 'build/jenkins/dockerfiles'
-			filename 'tools.Dockerfile'
-		}
-	}
-
-	stages {
-		stage("Asset download") {
-			steps {
-				sh "git lfs pull -I binaries/data/mods/public/maps"
-			}
-		}
-
-		stage("Data checks") {
-			steps {
-				sh "python3 source/tools/entity/checkrefs.py -tax"
-			}
-		}
-	}
-}