87 lines
1.9 KiB
Go
87 lines
1.9 KiB
Go
package main
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import (
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"encoding/json"
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"strings"
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"text/template"
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"github.com/Masterminds/sprig"
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"github.com/huandu/xstrings"
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"github.com/golang/protobuf/protoc-gen-go/descriptor"
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)
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var ProtoHelpersFuncMap = template.FuncMap{
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"string": func(i interface {
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String() string
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}) string {
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return i.String()
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},
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"json": func(v interface{}) string {
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a, _ := json.Marshal(v)
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return string(a)
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},
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"prettyjson": func(v interface{}) string {
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a, _ := json.MarshalIndent(v, "", " ")
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return string(a)
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},
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"splitArray": func(sep string, s string) []string {
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return strings.Split(s, sep)
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},
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"first": func(a []string) string {
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return a[0]
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},
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"last": func(a []string) string {
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return a[len(a)-1]
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},
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"upperFirst": func(s string) string {
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return strings.ToUpper(s[:1]) + s[1:]
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},
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"lowerFirst": func(s string) string {
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return strings.ToLower(s[:1]) + s[1:]
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},
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"camelCase": func(s string) string {
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return xstrings.ToCamelCase(s)
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},
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"lowerCamelCase": func(s string) string {
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cc := xstrings.ToCamelCase(s)
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return strings.ToLower(cc[:1]) + cc[1:]
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},
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"snakeCase": func(s string) string {
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return xstrings.ToSnakeCase(s)
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},
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"kebabCase": func(s string) string {
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return strings.Replace(xstrings.ToSnakeCase(s), "_", "-", -1)
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},
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"getMessageType": getMessageType,
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"isFieldMessage": isFieldMessage,
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}
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func init() {
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for k, v := range sprig.TxtFuncMap() {
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ProtoHelpersFuncMap[k] = v
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}
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}
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func getMessageType(f *descriptor.FileDescriptorProto, name string) *descriptor.DescriptorProto {
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for _, m := range f.MessageType {
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// name usually contains the package name
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if strings.HasSuffix(name, *m.Name) {
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return m
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}
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}
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return nil
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}
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func isFieldMessage(f *descriptor.FieldDescriptorProto) bool {
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if f.Type != nil && *f.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE {
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return true
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}
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if f.TypeName != nil && (*f.TypeName)[0] == '.' {
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return true
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}
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return false
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}
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