Fixed google.protobuf.Timestamp transformation.

Gopkg.toml

@@ -48,3 +48,7 @@
 [prune]
   go-tests = true
   unused-packages = true
+
+[[constraint]]
+  name = "github.com/pkg/errors"
+  version = "0.8.1"

Makefile

@@ -1,25 +1,27 @@
-VERSION=1.0.1-dev
+VERSION=1.0.2-dev
 BUILDTIME=$(shell date +"%Y-%m-%dT%T%z")
 LDFLAGS= -ldflags '-X github.com/bold-commerce/protoc-gen-struct-transformer/generator.version=$(VERSION) -X github.com/bold-commerce/protoc-gen-struct-transformer/generator.buildTime=$(BUILDTIME)'
 
-.PHONY: re-generate-example
+.PHONY: re-generate-example imports generate install build version
+
 re-generate-example:
 	protoc \
 		--proto_path=vendor/github.com/gogo:. \
-		--struct-transformer_out=package=transform,debug=false:. \
+		--struct-transformer_out=package=transform,debug=false,helper-package=helpers:. \
 		--gogofaster_out=Moptions/annotations.proto=github.com/bold-commerce/protoc-gen-struct-transformer/options:. \
 		./example/message.proto
 
-.PHONY: imports
 imports:
 	$(GOBIN)/goimports -w example/transform/message_transformer.go
 
-.PHONY: generate
-generate: re-generate-example imports
+generate: version re-generate-example imports
 
 install:
 	go install $(LDFLAGS)
 
 build: OUTPUT=.
 build:
 	go build $(LDFLAGS) -o $(OUTPUT)
+
+version:
+	protoc-gen-struct-transformer --version

example/helpers/helpers.go

@@ -0,0 +1,35 @@
+// Package helpers contains manually written functions for transforming custom
+// types. Such package should be written by end-user because plugin has no idea
+// which types could be used. It generates just function names for non-standard
+// types.
+package helpers
+
+import (
+	"time"
+
+	"github.com/bold-commerce/protoc-gen-struct-transformer/example/nulls"
+)
+
+func TimeToNullsTime(t time.Time) nulls.Time {
+	return nulls.Time{Time: t}
+}
+
+func NullsTimeToTime(nt nulls.Time) time.Time {
+	return nt.Time
+}
+
+func TimePtrToNullsTimePtr(t *time.Time) *nulls.Time {
+	return &nulls.Time{Time: *t}
+}
+
+func NullsTimePtrToTimePtr(nt *nulls.Time) *time.Time {
+	return &nt.Time
+}
+
+func TimePtrToNullsTime(t *time.Time) nulls.Time {
+	return nulls.Time{Time: *t}
+}
+
+func NullsTimeToTimePtr(nt nulls.Time) *time.Time {
+	return &nt.Time
+}