Create & Init Project...

app/admin/main/config/pkg/lint/json/BUILD

@@ -0,0 +1,37 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_test",
+    "go_library",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["jsonlint_test.go"],
+    embed = [":go_default_library"],
+    tags = ["automanaged"],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["jsonlint.go"],
+    importpath = "go-common/app/admin/main/config/pkg/lint/json",
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+    deps = ["//app/admin/main/config/pkg/lint:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

app/admin/main/config/pkg/lint/json/jsonlint.go

@@ -0,0 +1,26 @@
+package jsonlint
+
+import (
+	"encoding/json"
+	"io"
+
+	"go-common/app/admin/main/config/pkg/lint"
+)
+
+const filetype = "json"
+
+type jsonlint struct{}
+
+func (jsonlint) Lint(r io.Reader) lint.Error {
+	var v interface{}
+	dec := json.NewDecoder(r)
+	err := dec.Decode(&v)
+	if err == nil {
+		return nil
+	}
+	return lint.Error{{Line: -1, Message: err.Error()}}
+}
+
+func init() {
+	lint.RegisterLinter(filetype, jsonlint{})
+}

app/admin/main/config/pkg/lint/json/jsonlint_test.go

@@ -0,0 +1,38 @@
+package jsonlint
+
+import (
+	"bytes"
+	"testing"
+)
+
+var testdata = `
+{
+	"a1": "a1",
+	"b2": 
+}
+`
+
+var testdataok = `
+{
+	"hello": "world"
+}
+`
+
+func TestJsonLint(t *testing.T) {
+	lint := jsonlint{}
+	r := bytes.NewBufferString(testdata)
+	lintErr := lint.Lint(r)
+	if lintErr == nil {
+		t.Fatalf("expect lintErr != nil")
+	}
+	t.Logf("%s", lintErr.Error())
+}
+
+func TestJsonLintOk(t *testing.T) {
+	lint := jsonlint{}
+	r := bytes.NewBufferString(testdataok)
+	lintErr := lint.Lint(r)
+	if lintErr != nil {
+		t.Error(lintErr)
+	}
+}