Remove travis directory

This reflects that we no longer uses travis. Scripts are moved to ci
folder.

Author: liyuqian

.cirrus.yml

@@ -43,6 +43,6 @@ format_and_dart_test_task:
     cp $CIRRUS_WORKING_DIR -r ./flutter
     gclient sync
 
-  format_script: cd $ENGINE_PATH/src/flutter && ./travis/format.sh
-  build_script: cd $ENGINE_PATH/src/flutter && ./travis/build.sh
-  test_script: cd $ENGINE_PATH/src/flutter && ./travis/test.sh
+  format_script: cd $ENGINE_PATH/src/flutter && ./ci/format.sh
+  build_script: cd $ENGINE_PATH/src/flutter && ./ci/build.sh
+  test_script: cd $ENGINE_PATH/src/flutter && ./ci/test.sh

CONTRIBUTING.md

@@ -1,7 +1,7 @@
 Contributing to the Flutter engine
 ==================================
 
-[![Build Status](https://travis-ci.org/flutter/engine.svg)](https://travis-ci.org/flutter/engine)
+[![Build Status](https://cirrus-ci.com/flutter/engine.svg)](https://cirrus-ci.com/flutter/engine)
 
 _See also: [Flutter's code of conduct](https://flutter.io/design-principles/#code-of-conduct)_
 

travis/analyze.sh renamed to ci/analyze.sh

@@ -7,5 +7,5 @@ cd ..
 
 flutter/tools/gn --unoptimized
 ninja -C out/host_debug_unopt generate_dart_ui
-flutter/travis/analyze.sh
-flutter/travis/licenses.sh
+flutter/ci/analyze.sh
+flutter/ci/licenses.sh

travis/build.sh renamed to ci/build.sh

@@ -3,10 +3,10 @@ set -e
 shopt -s nullglob
 
 echo "Verifying license script is still happy..."
-(cd flutter/tools/licenses; pub get; dart --checked lib/main.dart --src ../../.. --out ../../../out/license_script_output --golden ../../travis/licenses_golden)
+(cd flutter/tools/licenses; pub get; dart --checked lib/main.dart --src ../../.. --out ../../../out/license_script_output --golden ../../ci/licenses_golden)
 
 for f in out/license_script_output/licenses_*; do
-    if ! cmp -s flutter/travis/licenses_golden/$(basename $f) $f
+    if ! cmp -s flutter/ci/licenses_golden/$(basename $f) $f
     then
         echo "License script got different results than expected for $f."
         echo "Please rerun the licenses script locally to verify that it is"
@@ -16,7 +16,7 @@ for f in out/license_script_output/licenses_*; do
         echo "For more information, see the script in:"
         echo "  https://github.com/flutter/engine/tree/master/tools/licenses"
         echo ""
-        diff -U 6 flutter/travis/licenses_golden/$(basename $f) $f
+        diff -U 6 flutter/ci/licenses_golden/$(basename $f) $f
         exit 1
     fi
 done

travis/check_roll.sh renamed to ci/check_roll.sh

@@ -187,10 +187,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 LIBRARY: engine
 ORIGIN: ../../../LICENSE
 TYPE: LicenseType.bsd
-FILE: ../../../flutter/.cirrus.yml
 FILE: ../../../flutter/DEPS
-FILE: ../../../flutter/ci/docker/build/Dockerfile
-FILE: ../../../flutter/ci/docker/build/engine_gclient
 FILE: ../../../flutter/lib/io/dart_io.cc
 FILE: ../../../flutter/lib/io/dart_io.h
 FILE: ../../../flutter/lib/snapshot/libraries.json