Add a top-level .gitignore (#1383)

.gitignore

@@ -0,0 +1,133 @@
+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+.pub-cache/
+.svn/
+.dart_tool/
+.vscode/
+.clangd
+.gdb_history
+.history
+.cxx
+*.iml
+compile_commands.json
+*.log
+*.pyc
+*.swp
+
+# Gradle?
+.uuid
+
+pubspec.lock
+
+# iOS and macOS dependencies
+.build/
+Podfile.lock
+Pods/
+.swiftpm/
+.symlinks/
+
+*instrumentscli*.trace
+*.cipd
+
+# Build directories are produced when building using the Flutter CLI.
+build
+
+# This file is produced as a back-up when web_benchmarks fails to parse a
+# Chrome trace.
+chrome-trace.json
+
+# Generated files on example apps
+flutter_export_environment.sh
+.flutter-plugins*
+local.properties
+keystore.properties
+**/Flutter/Generated.xcconfig
+**/Flutter/App.framework/
+**/Flutter/ephemeral/
+**/Flutter/Flutter.podspec
+**/Flutter/Flutter.framework/
+**/Flutter/flutter_assets/
+**/Flutter/.last_build_id
+**/Pods/
+
+ServiceDefinitions.json
+xcuserdata/
+DerivedData/
+dgph
+
+generated_plugin_registrant.*
+GeneratedPluginRegistrant.*
+
+# Gradle 
+gradle-wrapper.jar
+.gradle/
+gradlew
+gradlew.bat
+
+.project
+.classpath
+.settings
+
+# Directory created by dartdoc.
+doc/api/
+
+# Avoid committing generated Javascript files:
+*.dart.js
+*.info.json      # Produced by the --dump-info flag.
+*.js             # When generated by dart2js. Don't specify *.js if your
+                 # project includes source files written in JavaScript.
+*.js_
+*.js.deps
+*.js.map
+
+# Generated shared libraries.
+*.so
+*.so.*
+*.dylib
+*.dll
+
+# Files generated by tests for debugging purposes.
+**/test/debug_generated/*
+coverage/
+
+## Downloaded files and build artifacts
+*.jar
+*.class
+*.exe
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# CMake
+CMakeFiles/
+CMakeScripts/
+Makefile
+cmake_install.cmake
+CMakeCache.txt
+
+# Android
+**/android/app/debug
+**/android/app/profile
+**/android/app/release
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json

pkgs/ffigen/third_party/cjson_library/.gitignore

@@ -1,17 +1,5 @@
-# CMake generated files and directories.
-CMakeCache.txt
-CMakeFiles/
-CmakeScripts/
-Makefile
-cmake_install.cmake
-
 # Xcode tooling generated via `cmake -G Xcode .`.
 cjson_library.xcodeproj/
 
 # Xcode generated build and output directories.
 cjson_library.build/
-
-# Generated shared library files.
-*.dylib
-*.so.*
-*.dll