ci: add Dependabot auto-merge workflow

feat: update build system

.github/workflows/dependabot-auto-merge.yml

@@ -0,0 +1,24 @@
+name: Dependabot auto-merge
+
+on:
+  pull_request_target:
+    branches:
+      - master
+      - main
+    types:
+      - opened
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  enableAutoMerge:
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.user.login == 'dependabot[bot]'
+    steps:
+      - name: Enable auto-merge for Dependabot PRs
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

src/AMBuilder

@@ -5,24 +5,29 @@ projectName = 'TransmitManager'
 
 project = builder.LibraryProject(projectName)
 project.sources += [
-  os.path.join(Extension.ext_root, 'src', 'extension.cpp'),
-  os.path.join(Extension.sm_root, 'public', 'smsdk_ext.cpp')
+    os.path.join(Extension.ext_root, 'src', 'extension.cpp'),
+    os.path.join(Extension.sm_root, 'public', 'smsdk_ext.cpp')
 ]
 
 for sdk_name in Extension.sdks:
-  sdk = Extension.sdks[sdk_name]
-  if sdk['name'] in ['mock']:
-    continue
+    sdk = Extension.sdks[sdk_name]
+    if sdk['name'] in ['mock']:
+        continue
 
-  for cxx in builder.targets:
-    if not cxx.target.arch in sdk['platforms'][cxx.target.platform]:
-      continue
+    for cxx in builder.targets:
+        if not cxx.target.arch in sdk['platforms'][cxx.target.platform]:
+            continue
 
-    binary = Extension.HL2ExtConfig(project, builder, cxx, projectName + '.ext.' + sdk['extension'], sdk)
+        binary = Extension.HL2ExtConfig(project, builder, cxx, projectName + '.ext.' + sdk['extension'], sdk)
 
-    Extension.AddCDetour(binary)
+        Extension.AddCDetour(binary)
 
-    if cxx.target.platform in ['windows']:
-      binary.compiler.postlink += [ 'legacy_stdio_definitions.lib' ]
+        # Silence fatal errors on unrecognized Clang warning flags from CDetour
+        if cxx.family in ['gcc', 'clang']:
+            binary.compiler.cflags += ['-Wno-unknown-warning-option']
+            binary.compiler.cxxflags += ['-Wno-unknown-warning-option']
+
+        if cxx.target.platform in ['windows']:
+            binary.compiler.postlink += [ 'legacy_stdio_definitions.lib' ]
 
 Extension.extensions += builder.Add(project)