Add a base clang-tidy configuration

.clang-tidy

@@ -0,0 +1,22 @@
+Checks: >
+    -clang-analyzer-cplusplus.NewDeleteLeaks,
+    -clang-analyzer-optin.performance.Padding,
+    -clang-analyzer-security.FloatLoopCounter,
+    -clang-analyzer-security.insecureAPI.strcpy,
+
+WarningsAsErrors: '*'
+
+# No negative lookahead available here, which makes things difficult.
+#
+# We want checks to run on JUCE files included from the JUCE modules. We can
+# restrict these to files named `juce_.*`.
+#
+# We also want checks to run on any files inlcuded from the examples or extras
+# directories. However, some include paths generated by the Android Studio build
+# system look like:
+#
+#   ~/JUCE/examples/DemoRunner/Builds/Android/app/../../../../../modules/juce_box2d/box2d/Collision/b2CollideEdge.cpp
+#
+# Since we can only opt-in to paths, we restrict the maximum depth of the path
+# past examples/extras.
+HeaderFilterRegex: '(.*\/modules\/juce_.*juce_[^\/]*$)|(\/(examples|extras)(\/[^\/]*){1,7}$)'