custom alerting

Signed-off-by: junotx <junotx@126.com>

vendor/github.com/oklog/ulid/.travis.yml

@@ -0,0 +1,16 @@
+language: go
+sudo: false
+go:
+  - 1.10.x
+install:
+  - go get -v github.com/golang/lint/golint
+  - go get golang.org/x/tools/cmd/cover
+  - go get github.com/mattn/goveralls
+  - go get -d -t -v ./...
+  - go build -v ./...
+script:
+  - go vet ./...
+  - $HOME/gopath/bin/golint .
+  - go test -v -race ./...
+  - go test -v -covermode=count -coverprofile=cov.out
+  - $HOME/gopath/bin/goveralls -coverprofile=cov.out -service=travis-ci -repotoken "$COVERALLS_TOKEN" || true