diff --git a/.gitignore b/.gitignore
index c7f0a565e1..749c86dc6f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,81 @@
-.idea
-.history
+# Miscellaneous
+*.lock
+*.log
+*.pyc
+*.swp
 .DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
 *.iml
+*.ipr
+*.iws
+.idea/
+
+# Visual Studio Code related
+.vscode/
+
+# Flutter repo-specific
+/bin/cache/
+/dev/benchmarks/mega_gallery/
+/dev/bots/.recipe_deps
+/dev/bots/android_tools/
+/dev/docs/doc/
+/dev/docs/lib/
+/dev/docs/pubspec.yaml
+/packages/flutter/coverage/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.flutter-plugins
+.packages
+.pub/
+build/
+flutter_*.png
+linked_*.ds
+unlinked.ds
+unlinked_spec.ds
+
+# Android related
+**/android/**/GeneratedPluginRegistrant.java
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/GeneratedPluginRegistrant.h
+**/ios/**/GeneratedPluginRegistrant.m
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/ServiceDefinitions.json
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
diff --git a/bin/.gitignore b/bin/.gitignore
deleted file mode 100644
index 860c0083d0..0000000000
--- a/bin/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-cache
-
diff --git a/dev/automated_tests/.gitignore b/dev/automated_tests/.gitignore
deleted file mode 100644
index 52808ddc1e..0000000000
--- a/dev/automated_tests/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.atom
-.DS_Store
-.buildlog
-.idea
-.packages
-.pub/
-build/
-packages
-pubspec.lock
diff --git a/dev/benchmarks/.gitignore b/dev/benchmarks/.gitignore
deleted file mode 100644
index fb01c85cfd..0000000000
--- a/dev/benchmarks/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-mega_gallery/
diff --git a/dev/benchmarks/complex_layout/.gitignore b/dev/benchmarks/complex_layout/.gitignore
deleted file mode 100644
index 14c7d4c3f7..0000000000
--- a/dev/benchmarks/complex_layout/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
diff --git a/dev/benchmarks/complex_layout/android/.gitignore b/dev/benchmarks/complex_layout/android/.gitignore
deleted file mode 100644
index 3caaa44678..0000000000
--- a/dev/benchmarks/complex_layout/android/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
-
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/dev/benchmarks/complex_layout/ios/.gitignore b/dev/benchmarks/complex_layout/ios/.gitignore
deleted file mode 100644
index cdf5481282..0000000000
--- a/dev/benchmarks/complex_layout/ios/.gitignore
+++ /dev/null
@@ -1,42 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-*.lock
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
-*.mode2v3
-*.perspectivev3
-
-!default.pbxuser
-!default.mode1v3
-!default.mode2v3
-!default.perspectivev3
-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/benchmarks/microbenchmarks/.gitignore b/dev/benchmarks/microbenchmarks/.gitignore
deleted file mode 100644
index 14c7d4c3f7..0000000000
--- a/dev/benchmarks/microbenchmarks/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
diff --git a/dev/benchmarks/microbenchmarks/android/.gitignore b/dev/benchmarks/microbenchmarks/android/.gitignore
deleted file mode 100644
index 3caaa44678..0000000000
--- a/dev/benchmarks/microbenchmarks/android/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
-
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/dev/benchmarks/microbenchmarks/ios/.gitignore b/dev/benchmarks/microbenchmarks/ios/.gitignore
deleted file mode 100644
index cdf5481282..0000000000
--- a/dev/benchmarks/microbenchmarks/ios/.gitignore
+++ /dev/null
@@ -1,42 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-*.lock
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
-*.mode2v3
-*.perspectivev3
-
-!default.pbxuser
-!default.mode1v3
-!default.mode2v3
-!default.perspectivev3
-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/bots/.gitignore b/dev/bots/.gitignore
deleted file mode 100644
index 36bb2ff609..0000000000
--- a/dev/bots/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-*.pyc
-.recipe_deps
-android_tools
-.packages
-pubspec.lock
diff --git a/dev/devicelab/.gitignore b/dev/devicelab/.gitignore
deleted file mode 100644
index 00154e92d3..0000000000
--- a/dev/devicelab/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.DS_Store
-.buildlog
-.idea
-.packages
-.pub/
-build/
-packages
-pubspec.lock
-.atom/
diff --git a/dev/docs/.gitignore b/dev/docs/.gitignore
deleted file mode 100644
index b306039015..0000000000
--- a/dev/docs/.gitignore
+++ /dev/null
@@ -1,8 +0,0 @@
-.pub/
-packages
-.packages
-pubspec.lock
-
-pubspec.yaml
-doc/
-lib/
diff --git a/dev/integration_tests/channels/.gitignore b/dev/integration_tests/channels/.gitignore
deleted file mode 100644
index eb15c3d27c..0000000000
--- a/dev/integration_tests/channels/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
-.flutter-plugins
diff --git a/dev/integration_tests/channels/android/.gitignore b/dev/integration_tests/channels/android/.gitignore
deleted file mode 100644
index 3caaa44678..0000000000
--- a/dev/integration_tests/channels/android/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
-
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/dev/integration_tests/channels/ios/.gitignore b/dev/integration_tests/channels/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/dev/integration_tests/channels/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
-*.mode2v3
-*.perspectivev3
-
-!default.pbxuser
-!default.mode1v3
-!default.mode2v3
-!default.perspectivev3
-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/integration_tests/external_ui/.gitignore b/dev/integration_tests/external_ui/.gitignore
deleted file mode 100644
index eb15c3d27c..0000000000
--- a/dev/integration_tests/external_ui/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
-.flutter-plugins
diff --git a/dev/integration_tests/external_ui/android/.gitignore b/dev/integration_tests/external_ui/android/.gitignore
deleted file mode 100644
index 1658458c92..0000000000
--- a/dev/integration_tests/external_ui/android/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
diff --git a/dev/integration_tests/external_ui/ios/.gitignore b/dev/integration_tests/external_ui/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/dev/integration_tests/external_ui/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
-*.mode2v3
-*.perspectivev3
-
-!default.pbxuser
-!default.mode1v3
-!default.mode2v3
-!default.perspectivev3
-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/integration_tests/flavors/.gitignore b/dev/integration_tests/flavors/.gitignore
deleted file mode 100644
index eb15c3d27c..0000000000
--- a/dev/integration_tests/flavors/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
-.flutter-plugins
diff --git a/dev/integration_tests/flavors/android/.gitignore b/dev/integration_tests/flavors/android/.gitignore
deleted file mode 100644
index 1658458c92..0000000000
--- a/dev/integration_tests/flavors/android/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
diff --git a/dev/integration_tests/flavors/ios/.gitignore b/dev/integration_tests/flavors/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/dev/integration_tests/flavors/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
-*.mode2v3
-*.perspectivev3
-
-!default.pbxuser
-!default.mode1v3
-!default.mode2v3
-!default.perspectivev3
-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/integration_tests/platform_interaction/.gitignore b/dev/integration_tests/platform_interaction/.gitignore
deleted file mode 100644
index eb15c3d27c..0000000000
--- a/dev/integration_tests/platform_interaction/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
-.flutter-plugins
diff --git a/dev/integration_tests/platform_interaction/android/.gitignore b/dev/integration_tests/platform_interaction/android/.gitignore
deleted file mode 100644
index 3caaa44678..0000000000
--- a/dev/integration_tests/platform_interaction/android/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
-
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/dev/integration_tests/platform_interaction/ios/.gitignore b/dev/integration_tests/platform_interaction/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/dev/integration_tests/platform_interaction/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
-*.mode2v3
-*.perspectivev3
-
-!default.pbxuser
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-!default.perspectivev3
-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/integration_tests/ui/.gitignore b/dev/integration_tests/ui/.gitignore
deleted file mode 100644
index eb15c3d27c..0000000000
--- a/dev/integration_tests/ui/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
-.flutter-plugins
diff --git a/dev/integration_tests/ui/android/.gitignore b/dev/integration_tests/ui/android/.gitignore
deleted file mode 100644
index 3caaa44678..0000000000
--- a/dev/integration_tests/ui/android/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
-
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/dev/integration_tests/ui/ios/.gitignore b/dev/integration_tests/ui/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/dev/integration_tests/ui/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
-*.mode1v3
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-
-!default.pbxuser
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-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
-/Flutter/app.zip
-/Flutter/App.framework
-/Flutter/Flutter.framework
-/Flutter/Generated.xcconfig
-/ServiceDefinitions.json
-
-Pods/
diff --git a/dev/manual_tests/.gitignore b/dev/manual_tests/.gitignore
deleted file mode 100644
index 14c7d4c3f7..0000000000
--- a/dev/manual_tests/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
diff --git a/dev/manual_tests/android/.gitignore b/dev/manual_tests/android/.gitignore
deleted file mode 100644
index 3caaa44678..0000000000
--- a/dev/manual_tests/android/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-GeneratedPluginRegistrant.java
-
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/dev/manual_tests/ios/.gitignore b/dev/manual_tests/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/dev/manual_tests/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
-
-.DS_Store
-*.swp
-profile
-
-DerivedData/
-build/
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-
-*.pbxuser
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-
-!default.pbxuser
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-
-xcuserdata
-
-*.moved-aside
-
-*.pyc
-*sync/
-Icon?
-.tags*
-
-/Flutter/app.flx
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-/Flutter/Generated.xcconfig
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-Pods/
diff --git a/dev/missing_dependency_tests/.gitignore b/dev/missing_dependency_tests/.gitignore
deleted file mode 100644
index 52808ddc1e..0000000000
--- a/dev/missing_dependency_tests/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.atom
-.DS_Store
-.buildlog
-.idea
-.packages
-.pub/
-build/
-packages
-pubspec.lock
diff --git a/dev/tools/.gitignore b/dev/tools/.gitignore
deleted file mode 100644
index 8ba245b1b6..0000000000
--- a/dev/tools/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-.packages
-.pub/
-pubspec.lock
-packages
diff --git a/examples/.gitignore b/examples/.gitignore
deleted file mode 100644
index bdbe1f09fc..0000000000
--- a/examples/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.atom/
-.DS_Store
-.buildlog
-.idea
-.packages
-.pub/
-build/
-packages/
-pubspec.lock
-.flutter-plugins
diff --git a/examples/catalog/.gitignore b/examples/catalog/.gitignore
deleted file mode 100644
index b1adee6d45..0000000000
--- a/examples/catalog/.gitignore
+++ /dev/null
@@ -1,14 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
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-ios/.generated/
-packages
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-
-.generated/
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diff --git a/examples/catalog/android/.gitignore b/examples/catalog/android/.gitignore
deleted file mode 100644
index 45cf57208e..0000000000
--- a/examples/catalog/android/.gitignore
+++ /dev/null
@@ -1,15 +0,0 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
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-
-# Gradle wrapper files should normally be checked into source control.
-# See ../../README.md
-gradle-wrapper.jar
-/gradlew
-/gradlew.bat
diff --git a/examples/catalog/ios/.gitignore b/examples/catalog/ios/.gitignore
deleted file mode 100644
index 38864eed23..0000000000
--- a/examples/catalog/ios/.gitignore
+++ /dev/null
@@ -1,41 +0,0 @@
-.idea/
-.vagrant/
-.sconsign.dblite
-.svn/
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-.DS_Store
-*.swp
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-Pods/
diff --git a/examples/flutter_gallery/.gitignore b/examples/flutter_gallery/.gitignore
deleted file mode 100644
index bdbe1f09fc..0000000000
--- a/examples/flutter_gallery/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-.atom/
-.DS_Store
-.buildlog
-.idea
-.packages
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diff --git a/examples/flutter_gallery/android/.gitignore b/examples/flutter_gallery/android/.gitignore
deleted file mode 100644
index 45cf57208e..0000000000
--- a/examples/flutter_gallery/android/.gitignore
+++ /dev/null
@@ -1,15 +0,0 @@
-*.iml
-.gradle
-/local.properties
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