add MegaLinter and .editorconfig

.editorconfig

@@ -0,0 +1,35 @@
+root = true
+
+# Global
+[*]
+indent_style = unset
+indent_size = 4
+tab_width = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+# Unreal Engine 3 / Source
+[*.{uc,uci}]
+indent_style = tab
+
+[*.upkg]
+
+# Unreal Engine 3 / i18n
+[*.{chn,cht,cze,dan,deu,dut,esl,esn,fra,frc,hun,int,ita,jpn,kor,pol,por,ptb,rus,tur,ukr}]
+charset = utf-16le
+
+# Other
+[*.md]
+trim_trailing_whitespace = false
+
+[*.{txt,cfg}]
+insert_final_newline = unset
+
+[*.yml]
+indent_style = space
+indent_size = 2
+
+[.gitignore]
+insert_final_newline = unset

.github/workflows/mega-linter.yml

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+---
+name: MegaLinter
+
+permissions: read-all
+
+on:
+  push:
+  pull_request:
+    branches: [master]
+
+env:
+  APPLY_FIXES: none
+  APPLY_FIXES_EVENT: pull_request
+  APPLY_FIXES_MODE: commit
+  DISABLE: SPELL
+
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: MegaLinter
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
+
+      - name: MegaLinter
+        id: ml
+        uses: oxsecurity/megalinter@v6
+        env:
+          VALIDATE_ALL_CODEBASE: true
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Archive production artifacts
+        if: ${{ success() }} || ${{ failure() }}
+        uses: actions/upload-artifact@v3
+        with:
+          name: MegaLinter reports
+          path: |
+            megalinter-reports
+            mega-linter.log
+
+      - name: Create Pull Request with applied fixes
+        id: cpr
+        if: steps.ml.outputs.has_updated_sources == 1 && (env.APPLY_FIXES_EVENT == 'all' || env.APPLY_FIXES_EVENT == github.event_name) && env.APPLY_FIXES_MODE == 'pull_request' && (github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository)
+        uses: peter-evans/create-pull-request@v5
+        with:
+          token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
+          commit-message: "[MegaLinter] Apply linters automatic fixes"
+          title: "[MegaLinter] Apply linters automatic fixes"
+          labels: bot
+      - name: Create PR output
+        if: steps.ml.outputs.has_updated_sources == 1 && (env.APPLY_FIXES_EVENT == 'all' || env.APPLY_FIXES_EVENT == github.event_name) && env.APPLY_FIXES_MODE == 'pull_request' && (github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository)
+        run: |
+          echo "Pull Request Number - ${{ steps.cpr.outputs.pull-request-number }}"
+          echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"
+
+      - name: Prepare commit
+        if: steps.ml.outputs.has_updated_sources == 1 && (env.APPLY_FIXES_EVENT == 'all' || env.APPLY_FIXES_EVENT == github.event_name) && env.APPLY_FIXES_MODE == 'commit' && github.ref != 'refs/heads/main' && (github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository)
+        run: sudo chown -Rc $UID .git/
+      - name: Commit and push applied linter fixes
+        if: steps.ml.outputs.has_updated_sources == 1 && (env.APPLY_FIXES_EVENT == 'all' || env.APPLY_FIXES_EVENT == github.event_name) && env.APPLY_FIXES_MODE == 'commit' && github.ref != 'refs/heads/main' && (github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository)
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          branch: ${{ github.event.pull_request.head.ref || github.head_ref || github.ref }}
+          commit_message: "[MegaLinter] Apply linters fixes"
+          commit_user_name: megalinter-bot
+          commit_user_email: nicolas.vuillamy@ox.security