integrate error codes with pkg/errors to provide error tracing (#1200)

* use pingcap/errcode
tikv · Sep 30, 2018 · 744c3a6 · 744c3a6
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commit 744c3a6
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diff --git a/Gopkg.lock b/Gopkg.lock
diff --git a/Gopkg.toml b/Gopkg.toml
@@ -40,6 +40,10 @@
   name = "github.com/pkg/errors"
   version = ">= 0.8.0"
 
+[[constraint]]
+  name = "github.com/pingcap/errcode"
+  version = ">= 0.1.0"
+
 [[override]]
   name = "github.com/BurntSushi/toml"
   revision = "3012a1dbe2e4bd1391d42b32f0577cb7bbc7f005"
diff --git a/docs/development.md b/docs/development.md
@@ -42,5 +42,5 @@ Consider that raml2html depends on various npm packages and can only be run unde
 
 ## Error responses
 
-Error responses from the server are switching to using [error codes](../pkg/error_code/error_code.go).
+Error responses from the server are switching to using [errcode codes](https://github.com/pingcap/errcode).
 The should use the `errorResp` function. Please look at other places in the codebase that use `errorResp`.
diff --git a/pkg/error_code/error_code_test.go b/pkg/error_code/error_code_test.go