add ability to use repo templates

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

.circleci/config.yml

@@ -0,0 +1,17 @@
+version: 2.1
+
+orbs:
+  moul: moul/build@1.14.0 # https://github.com/moul/build
+
+workflows:
+  main:
+    jobs:
+      - moul/golang-build:
+          gopkg: moul.io/protoc-gen-gotemplate
+      - moul/golang-build:
+          gopkg: moul.io/protoc-gen-gotemplate
+          tag: '1.12'
+      - moul/golang-build:
+          gopkg: moul.io/protoc-gen-gotemplate
+          tag: '1.11'
+      - moul/docker-build

.dockerignore

@@ -0,0 +1,3 @@
+Dockerfile
+*~
+.git/

.gitattributes

@@ -0,0 +1,15 @@
+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Collapse vendored and generated files on GitHub
+vendor/* linguist-vendored
+rules.mk linguist-vendored
+*/vendor/* linguist-vendored
+*.gen.* linguist-generated
+*.pb.go linguist-generated
+go.sum linguist-generated
+go.mod linguist-generated
+gen.sum linguist-generated
+
+# Reduce conflicts on markdown files
+*.md merge=union

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @moul

.github/FUNDING.yml

@@ -0,0 +1,6 @@
+#github: ["moul"]
+patreon: moul
+open_collective: moul
+custom:
+- "https://www.buymeacoffee.com/moul"
+- "https://manfred.life/donate"

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,31 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[BUG] "
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Type '....'
+3. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots / Logs**
+If applicable, add screenshots or logs to help explain your problem.
+
+**Versions (please complete the following information, if relevant):**
+- Software version: [e.g. v1.2.3, latest, building from sources]
+- OS: [e.g. Ubuntu, Mac, iOS, ...]
+- Golang version [e.g. 1.13]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/custom.md

@@ -0,0 +1,8 @@
+---
+name: Custom
+about: 'Anything else: questions, discussions, thanks, ascii-arts, ...'
+title: ''
+labels: discussion
+assignees: moul
+
+---

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[IDEA] "
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,9 @@
+<!--
+Thank you for your contribution to this repo!
+
+Before submitting a pull request, please check the following:
+- reference any related issue, PR, link
+- use the "WIP" title prefix if you need help or more time to finish your PR
+
+you can remove this markdown comment
+-->

.github/renovate.json

@@ -1,5 +1,6 @@
 {
   "extends": [
     "config:base"
-  ]
+  ],
+  "groupName": "all"
 }

.github/workflows/release.yml

@@ -0,0 +1,13 @@
+name: Semantic Release
+
+on: push
+
+jobs:
+  semantic-release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: codfish/semantic-release-action@v1
+        if: github.ref == 'refs/heads/master'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -1,28 +1,25 @@
-vendor/**/.travis.yml
+# Temporary files
+*~
+*#
+.#*
+coverage.txt
 
-/protoc-gen-gotemplate
+# Vendors
-
+package-lock.json
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
+node_modules/
-*.o
+vendor/
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
 
+# Binaries for programs and plugins
+dist/
+gin-bin
 *.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
 *.test
-*.prof
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out

.golangci.yml

@@ -0,0 +1,34 @@
+run:
+  deadline: 1m
+  tests: false
+  #skip-files:
+  #  - ".*\\.gen\\.go"
+
+linters-settings:
+  golint:
+    min-confidence: 0
+  maligned:
+    suggest-new: true
+  goconst:
+    min-len: 5
+    min-occurrences: 4
+  misspell:
+    locale: US
+
+linters:
+  disable-all: true
+  enable:
+    - goconst
+    - misspell
+    - deadcode
+    - misspell
+    - structcheck
+    - errcheck
+    - unused
+    - varcheck
+    - staticcheck
+    - unconvert
+    - gofmt
+    - goimports
+    - golint
+    - ineffassign

.releaserc.js

@@ -0,0 +1,8 @@
+module.exports = {
+    branch: 'master',
+    plugins: [
+        '@semantic-release/commit-analyzer',
+        '@semantic-release/release-notes-generator',
+        '@semantic-release/github',
+    ],
+};

.travis.yml

@@ -1,20 +0,0 @@
-language: go
-go: 1.11.x
-go_import_path: moul.io/protoc-gen-gotemplate
-install:
-- go get github.com/Masterminds/glide
-- wget https://raw.githubusercontent.com/grpc-ecosystem/grpc-gateway/master/.travis/install-protoc.sh && chmod +x install-protoc.sh && ./install-protoc.sh 3.4.0
-- go get -u github.com/golang/protobuf/protoc-gen-go
-- go get github.com/securego/gosec/cmd/gosec/...
-- go get -u github.com/alecthomas/gometalinter
-- gometalinter --install
-script:
-- make install
-- make test
-- make lint
-cache:
-  directories:
-  - $HOME/local
-env:
-  global:
-  - "PATH=$PATH:$HOME/local/bin"

AUTHORS

@@ -0,0 +1,28 @@
+# This file lists all individuals having contributed content to the repository.
+# For how it is generated, see 'https://github.com/moul/rules.mk'
+
+Alexandre Beslic <abeslic@abronan.com>
+Anastasia DERUELLE <anastasia.deruelle@gmail.com>
+Gero <geronimo@eclypsium.com>
+gfanton <guilhem.fanton@gmail.com>
+Guilhem Fanton <guilhem.fanton@gmail.com>
+Jan Weitz <jan@iosphere.de>
+jhayotte <julien.hayotte@gmail.com>
+Julien Hayotte <julien.hayotte@gmail.com>
+Manfred Touron <m@42.am>
+Mathieu Acthernoene <zoontek@gmail.com>
+Mike Lee <mike.lee@safeguardproperties.com>
+moul-bot <41326314+moul-bot@users.noreply.github.com>
+Pat Moroney <pat@pat.email>
+Pat Moroney <pmoroney@name.com>
+Peter Monko <piotrek.monko@gmail.com>
+Pierre Roullon <pierre.roullon@gmail.com>
+Quentin Perez <qperez@ocs.online.net>
+Renovate Bot <bot@renovateapp.com>
+Sacha Froment <sfroment42@gmail.com>
+Shogo Iwano <shiwano@gmail.com>
+Thomas KERAMBLOCH <tkerambloch@vente-privee.com>
+Tommy PAGEARD <tpageard@vente-privee.com>
+Valerio Gheri <valerio.gheri@gmail.com>
+Victor Login <batazor111@gmail.com>
+webii <michal.jaglewicz@gmail.com>

Dockerfile

@@ -1,14 +1,18 @@
-FROM		znly/protoc:0.3.0
+# builder
-
+FROM    golang:1.15-alpine as builder
-ENV		GOPATH=/go \
+RUN     apk --no-cache add make git go rsync libc-dev
-		PATH=/go/bin:${PATH}
+RUN     go get -u golang.org/x/tools/cmd/goimports
-
+RUN     go get -u github.com/gobuffalo/packr/v2/packr2
-# Install deps and common tools
-RUN		apk --update add make git go rsync libc-dev \
- &&		go get -u golang.org/x/tools/cmd/goimports
-
-# Install protoc-gen-gotemplate
 COPY    . /go/src/moul.io/protoc-gen-gotemplate
 WORKDIR /go/src/moul.io/protoc-gen-gotemplate
-RUN		git remote set-url origin https://github.com/moul/protoc-gen-gotemplate
+RUN     packr2
-RUN		go install . ./cmd/web-editor
+RUN     go install -a -tags netgo -ldflags '-w -extldflags "-static"' . ./cmd/web-editor
+RUN     ls -la /go/bin
+
+# runtime
+FROM    znly/protoc:0.4.0
+COPY    --from=builder  /go/bin/web-editor            /go/bin/
+COPY    --from=builder  /go/bin/protoc-gen-gotemplate /go/bin/
+ENV     PATH=$PATH:/go/bin
+EXPOSE  8080
+ENTRYPOINT []

Makefile

@@ -1,14 +1,14 @@
-.PHONY: build
+GOPKG ?= moul.io/protoc-gen-gotemplate
-build:
+DOCKER_IMAGE ?= moul/protoc-gen-gotemplate
-	go build -v -i -o protoc-gen-gotemplate .
+GOBINS ?= . ./cmd/web-editor
+GOLIBS ?= .
 
-.PHONY: install
+all: test install
-install:
-	go install .
-	go install ./cmd/web-editor
 
-.PHONY: test
+include rules.mk
-test:	install
+
+.PHONY: examples
+examples:	install
 	cd examples/time && make
 	cd examples/enum && make
 	cd examples/import && make
@@ -18,19 +18,7 @@ test:	install
 	cd examples/flow && make
 	cd examples/sitemap && make
 	cd examples/go-generate && make
-# 	cd examples/single-package-mode && make
+  #cd examples/single-package-mode && make
 	cd examples/helpers && make
 	cd examples/arithmetics && make
-#	cd examples/go-kit && make
+  #cd examples/go-kit && make
-
-.PHONY: docker.build
-docker.build:
-	docker build --pull -t moul/protoc-gen-gotemplate .
-
-.PHONY: docker.push
-docker.push: docker.build
-	docker push moul/protoc-gen-gotemplate
-
-.PHONY: lint
-lint:
-	gometalinter --disable-all --enable=errcheck --enable=vet --enable=vetshadow --enable=golint --enable=gosec --enable=ineffassign --enable=goconst --enable=goimports --enable=gofmt --exclude="Binds to all network interfaces" --exclude="should have comment" --enable=staticcheck --enable=gosimple --enable=misspell --deadline=120s . ./cmd/... ./helpers/...

README.md

@@ -76,56 +76,57 @@ This project uses [Masterminds/sprig](https://github.com/Masterminds/sprig) libr
 Non-exhaustive list of new helpers:
 
 * **all the functions from [sprig](https://github.com/Masterminds/sprig)**
-* `string`
+* `add`
-* `json`
-* `prettyjson`
-* `splitArray`
-* `first`
-* `last`
-* `upperFirst`
-* `lowerFirst`
-* `camelCase`
-* `lowerCamelCase`
-* `kebabCase`
-* `contains`
-* `trimstr`
-* `index`
-* `snakeCase`
-* `getProtoFile`
-* `getMessageType`
-* `getEnumValue`
-* `isFieldMessage`
-* `isFieldMessageTimeStamp`
-* `isFieldRepeated`
-* `haskellType`
-* `goType`
-* `goZeroValue`
-* `goTypeWithPackage`
-* `jsType`
-* `jsSuffixReserved`
-* `namespacedFlowType`
-* `httpVerb`
-* `httpPath`
-* `httpPathsAdditionalBindings`
-* `httpBody`
-* `shortType`
-* `urlHasVarsFromMessage`
-* `lowerGoNormalize`
-* `goNormalize`
-* `leadingComment`
-* `trailingComment`
-* `leadingDetachedComments`
-* `stringFieldExtension`
-* `stringMethodOptionsExtension`
 * `boolFieldExtension`
-* `isFieldMap`
+* `camelCase`
+* `contains`
+* `divide`
 * `fieldMapKeyType`
 * `fieldMapValueType`
-* `replaceDict`
+* `first`
-* `add`
+* `getEnumValue`
-* `subtract`
+* `getMessageType`
+* `getProtoFile`
+* `goNormalize`
+* `goTypeWithPackage`
+* `goType`
+* `goZeroValue`
+* `haskellType`
+* `httpBody`
+* `httpPath`
+* `httpPathsAdditionalBindings`
+* `httpVerb`
+* `index`
+* `int64FieldExtension`
+* `isFieldMap`
+* `isFieldMessageTimeStamp`
+* `isFieldMessage`
+* `isFieldRepeated`
+* `jsSuffixReserved`
+* `jsType`
+* `json`
+* `kebabCase`
+* `last`
+* `leadingComment`
+* `leadingDetachedComments`
+* `lowerCamelCase`
+* `lowerFirst`
+* `lowerGoNormalize`
 * `multiply`
-* `divide`
+* `namespacedFlowType`
+* `prettyjson`
+* `replaceDict`
+* `shortType`
+* `snakeCase`
+* `splitArray`
+* `stringFieldExtension`
+* `stringMethodOptionsExtension`
+* `string`
+* `subtract`
+* `trailingComment`
+* `trimstr`
+* `upperFirst`
+* `urlHasVarsFromMessage`
 
 See the project helpers for the complete list.
 
@@ -152,6 +153,10 @@ $> docker run --rm -v "$(pwd):$(pwd)" -w "$(pwd)" moul/protoc-gen-gotemplate -I.
 * [translator](https://github.com/moul/translator): Translator Micro-service using Gettext and Go-Kit
 * [acl](https://github.com/moul/acl): ACL micro-service (gRPC/protobuf + http/json)
 
+## See also
+
+* [pbhbs](https://github.com/gponsinet/pbhbs): protobuf gen based on handlebarjs template
+
 ## License
 
 MIT

assets/assets

@@ -0,0 +1,6 @@
+  /Users/moul/go/src/moul.io/protoc-gen-gotemplate/assets:
+  total used in directory 552 available 9223372036849978910
+  drwxr-xr-x   4 moul  staff     128 Dec  9 11:31 .
+  lrwxr-xr-x   1 moul  staff      33 Dec  9 11:31 .#web-editor.jpg -> moul@manfred-spacegray.local.9471
+  drwxr-xr-x  21 moul  staff     672 Sep 13 18:05 ..
+  -rw-r--r--@  1 moul  staff  280357 Oct 26  2017 web-editor.jpg

clean.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"go/parser"
+	"go/token"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func isGenerated(name string) bool {
+	const (
+		genCodeGenerated = "code generated"
+		genDoNotEdit     = "do not edit"
+		genAutoFile      = "autogenerated file"
+	)
+
+	markers := []string{genCodeGenerated, genDoNotEdit, genAutoFile}
+
+	fileset := token.NewFileSet()
+	syntax, err := parser.ParseFile(fileset, name, nil, parser.PackageClauseOnly|parser.ParseComments)
+	if err != nil {
+		return false
+	}
+
+	for _, comment := range syntax.Comments {
+		for _, marker := range markers {
+			if strings.Contains(strings.ToLower(comment.Text()), marker) {
+				return true
+			}
+		}
+	}
+
+	return false
+}
+
+func cleanDir(dir string) error {
+	return filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if dir == "vendor" {
+			return filepath.SkipDir
+		}
+		if isGenerated(path) {
+			err = os.Remove(path)
+		}
+		return err
+	})
+}

clone.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"go/types"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing/filemode"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/go-git/go-git/v5/storage/memory"
+)
+
+func clone(srcRepo string, dstDir string) error {
+	if !strings.HasPrefix(srcRepo, "https://") {
+		srcRepo = "https://" + srcRepo
+	}
+
+	u, err := url.Parse(srcRepo)
+	if err != nil {
+		return err
+	}
+
+	var rev string
+	if idx := strings.Index(u.Path, "@"); idx > 0 {
+		rev = u.Path[idx+1:]
+	}
+
+	cloneOpts := &git.CloneOptions{
+		URL: srcRepo,
+		//	Progress: os.Stdout,
+	}
+
+	if len(rev) == 0 {
+		cloneOpts.SingleBranch = true
+		cloneOpts.Depth = 1
+	}
+
+	if err := cloneOpts.Validate(); err != nil {
+		return err
+	}
+
+	repo, err := git.CloneContext(context.Background(), memory.NewStorage(), nil, cloneOpts)
+	if err != nil {
+		return err
+	}
+
+	ref, err := repo.Head()
+	if err != nil {
+		return err
+	}
+
+	commit, err := repo.CommitObject(ref.Hash())
+	if err != nil {
+		return err
+	}
+
+	tree, err := commit.Tree()
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(dstDir, os.FileMode(0755)); err != nil {
+		return err
+	}
+
+	if err := cleanDir(dstDir); err != nil {
+		return err
+	}
+
+	err = tree.Files().ForEach(func(file *object.File) error {
+		if file == nil {
+			return types.Error{Msg: "file pointer is empty"}
+		}
+
+		fmode, err := file.Mode.ToOSFileMode()
+		if err != nil {
+			return err
+		}
+
+		switch file.Mode {
+		case filemode.Executable:
+			return writeFile(file, dstDir, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, fmode)
+		case filemode.Dir:
+			return os.MkdirAll(filepath.Join(dstDir, file.Name), fmode)
+		case filemode.Regular:
+			return writeFile(file, dstDir, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, fmode)
+		default:
+			return fmt.Errorf("unsupported filetype %v for %s", file.Mode, file.Name)
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

cmd/web-editor/main.go

@@ -11,6 +11,7 @@ import (
 	"os/exec"
 	"path/filepath"
 
+	packr "github.com/gobuffalo/packr/v2"
 	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
 )
@@ -101,7 +102,9 @@ func returnError(w http.ResponseWriter, err error) {
 func main() {
 	r := mux.NewRouter()
 
-	r.Handle("/", http.FileServer(http.Dir("static")))
+	box := packr.New("static", "./static")
+
+	r.Handle("/", http.FileServer(box))
 	r.HandleFunc("/generate", generate)
 	addr := fmt.Sprintf(":%s", os.Getenv("PORT"))
 	if addr == ":" {

cmd/web-editor/static/index.html

@@ -90,7 +90,7 @@
 
     <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
     <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.3/styles/github.min.css">
-    <style>.ace_editor { height: 80%; }</style>
+    <style>.ace_editor { height: 80%; min-height: 500px; }</style>
   </head>
   <body ng-app="pggt">
     <div class="container-fluid" ng-controller="PggtCtrl">

copy.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"io"
+	"log"
+	"os"
+	"path/filepath"
+
+	"github.com/go-git/go-git/v5/plumbing/object"
+)
+
+func writeFile(file *object.File, dir string, flag int, mode os.FileMode) error {
+	path := filepath.Join(dir, file.Name)
+
+	if err := os.MkdirAll(filepath.Dir(path), os.FileMode(0755)); err != nil {
+		return err
+	}
+
+	w, err := os.OpenFile(path, flag, mode)
+	if err != nil {
+		return err
+	}
+
+	defer func() {
+		if err := w.Close(); err != nil {
+			log.Printf("Err: failed to close file: %v", err)
+		}
+	}()
+
+	r, err := file.Reader()
+	if err != nil {
+		return err
+	}
+
+	defer func() {
+		if err := r.Close(); err != nil {
+			log.Printf("Err: failed to close file: %v", err)
+		}
+	}()
+
+	if _, err = io.Copy(w, r); err != nil {
+		return err
+	}
+
+	return nil
+}

encoder.go

@@ -11,7 +11,7 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/protoc-gen-go/descriptor"
-	"github.com/golang/protobuf/protoc-gen-go/plugin"
+	plugin_go "github.com/golang/protobuf/protoc-gen-go/plugin"
 
 	pgghelpers "moul.io/protoc-gen-gotemplate/helpers"
 )
@@ -210,10 +210,8 @@ func (e *GenericTemplateBasedEncoder) Files() []*plugin_go.CodeGeneratorResponse
 		case f := <-resultChan:
 			files = append(files, f)
 		case err = <-errChan:
-		}
-	}
-	if err != nil {
 			panic(err)
 		}
+	}
 	return files
 }

examples/go-kit/services/session/gen/endpoints/endpoints.go

@@ -5,8 +5,8 @@ import (
 	"fmt"
 
 	"github.com/go-kit/kit/endpoint"
-	pb "moul.io/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
 	oldcontext "golang.org/x/net/context"
+	pb "moul.io/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
 )
 
 var _ = endpoint.Chain

examples/go-kit/services/sprint/gen/endpoints/endpoints.go

@@ -5,8 +5,8 @@ import (
 	"fmt"
 
 	"github.com/go-kit/kit/endpoint"
-	pb "moul.io/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
 	oldcontext "golang.org/x/net/context"
+	pb "moul.io/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
 )
 
 var _ = endpoint.Chain

examples/go-kit/services/user/gen/endpoints/endpoints.go

@@ -5,8 +5,8 @@ import (
 	"fmt"
 
 	"github.com/go-kit/kit/endpoint"
-	pb "moul.io/protoc-gen-gotemplate/examples/go-kit/services/user/gen/pb"
 	oldcontext "golang.org/x/net/context"
+	pb "moul.io/protoc-gen-gotemplate/examples/go-kit/services/user/gen/pb"
 )
 
 var _ = endpoint.Chain

examples/import/output/output.go

@@ -2,39 +2,25 @@
 package company
 
 import (
+	"context"
+
 	"moul.io/protoc-gen-gotemplate/examples/import/output/models/article"
 	"moul.io/protoc-gen-gotemplate/examples/import/output/models/common"
 )
 
 type Repository interface {
-     GetArticle(getarticle *common.GetArticle ) (*company.Article, []*company.Storage,  error)
+	GetArticle(getarticle *common.GetArticle) (*company.Article, []*company.Storage, error)
 }
 
-
-
-
-
-
-
 // ------------------------- Public SDK -----------------------------
 
-
-
-
-
-
-
 // GetArticle : proto: missing extension proto: missing extension
 func (sdk *Sdk) GetArticle(ctx context.Context,
-  getarticle *article.GetArticle, token, requestID string)(article *article.Article, storages []*article.GetArticleResponse_Storage, err error) {
+	getarticle *article.GetArticle, token, requestID string) (article *article.Article, storages []*article.GetArticleResponse_Storage, err error) {
 
 	out := &pb.GetArticleResponse{}
 	_ = out
 
-
 	return out.Article, out.Storages, nil
 
 }
-
- 
- 

examples/single-package-mode/output/bbb/service.go

@@ -4,8 +4,8 @@ package bbb
 import (
 	"fmt"
 
-	"moul.io/protoc-gen-gotemplate/examples/single-package-mode/output/aaa"
 	"golang.org/x/net/context"
+	"moul.io/protoc-gen-gotemplate/examples/single-package-mode/output/aaa"
 )
 
 type Service struct{}

examples/time/output/time.go

@@ -6,5 +6,5 @@ import (
 )
 
 type Repository interface {
-     GetFoo(timestamp *timestamp.Timestamp ) (*timestamp.Timestamp,  error)
+	GetFoo(timestamp *timestamp.Timestamp) (*timestamp.Timestamp, error)
 }

go.mod

@@ -1,29 +1,21 @@
 module moul.io/protoc-gen-gotemplate
 
 require (
-	github.com/Masterminds/semver v1.2.2 // indirect
+	github.com/Masterminds/goutils v1.1.0 // indirect
-	github.com/Masterminds/sprig v2.14.1+incompatible
+	github.com/Masterminds/semver v1.5.0 // indirect
-	github.com/aokoli/goutils v0.0.0-20170502144750-e57d01ace047 // indirect
+	github.com/Masterminds/sprig v2.22.0+incompatible
-	github.com/dgrijalva/jwt-go v0.0.0-20160621201154-c9eaceb2896d // indirect
+	github.com/go-git/go-git/v5 v5.2.0
-	github.com/go-kit/kit v0.0.0-20161109000648-9f5c614cd1e7 // indirect
+	github.com/gobuffalo/packr/v2 v2.8.0
-	github.com/go-logfmt/logfmt v0.3.0 // indirect
+	github.com/golang/protobuf v1.3.2
-	github.com/go-stack/stack v1.5.3 // indirect
+	github.com/google/uuid v1.1.1 // indirect
-	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
+	github.com/gorilla/handlers v1.4.2
-	github.com/golang/protobuf v0.0.0-20161117033126-8ee79997227b
+	github.com/gorilla/mux v1.7.3
-	github.com/gorilla/context v0.0.0-20160226214623-1ea25387ff6f // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.12.1
-	github.com/gorilla/handlers v0.0.0-20161028133215-e1b2144f2167
+	github.com/huandu/xstrings v1.3.0
-	github.com/gorilla/mux v1.5.0
+	github.com/mitchellh/copystructure v1.0.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway v1.2.2
+	github.com/mitchellh/reflectwalk v1.0.1 // indirect
-	github.com/huandu/xstrings v0.0.0-20151130125119-3959339b3335
+	google.golang.org/genproto v0.0.0-20200113173426-e1de0a7b01eb
-	github.com/imdario/mergo v0.0.0-20171009183408-7fe0c75c13ab // indirect
+	gopkg.in/yaml.v2 v2.2.7 // indirect
-	github.com/kr/fs v0.0.0-20131111012553-2788f0dbd169 // indirect
-	github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 // indirect
-	github.com/satori/go.uuid v1.1.0 // indirect
-	github.com/spf13/cobra v0.0.3 // indirect
-	github.com/spf13/pflag v1.0.3 // indirect
-	golang.org/x/crypto v0.0.0-20170516161655-0fe963104e9d // indirect
-	golang.org/x/net v0.0.0-20170108160505-da2b4fa28524 // indirect
-	golang.org/x/text v0.0.0-20161216064924-a49bea13b776 // indirect
-	google.golang.org/genproto v0.0.0-20170517234824-bb3573be0c48
-	google.golang.org/grpc v1.0.4 // indirect
 )
+
+go 1.13

go.sum

@@ -1,41 +1,281 @@
-github.com/Masterminds/semver v1.2.2 h1:ptelpryog9A0pR4TGFvIAvw2c8SaNrYkFtfrxhSviss=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/Masterminds/semver v1.2.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Masterminds/sprig v2.14.1+incompatible h1:rTHERm50Xp1Cbb8x7xBCeDp//jMMqqR44EWw7KwSXUQ=
+github.com/Masterminds/goutils v1.1.0 h1:zukEsf/1JZwCMgHiK3GZftabmxiCw4apj3a28RPBiVg=
-github.com/Masterminds/sprig v2.14.1+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
+github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
-github.com/aokoli/goutils v0.0.0-20170502144750-e57d01ace047 h1:Bn0iqJ/349f606hR0juIGyheAI6+hyg9XUOLhN9udLo=
+github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
-github.com/aokoli/goutils v0.0.0-20170502144750-e57d01ace047/go.mod h1:SijmP0QR8LtwsmDs8Yii5Z/S4trXFGFC2oO5g9DP+DQ=
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-github.com/go-kit/kit v0.0.0-20161109000648-9f5c614cd1e7/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
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helpers/helpers.go

@@ -85,6 +85,9 @@ var ProtoHelpersFuncMap = template.FuncMap{
 
 		return strings.ToLower(s[:1]) + s[1:]
 	},
+	"upperCase": func(s string) string {
+		return strings.ToUpper(s)
+	},
 	"kebabCase": func(s string) string {
 		return strings.Replace(xstrings.ToSnakeCase(s), "_", "-", -1)
 	},
@@ -94,15 +97,15 @@ var ProtoHelpersFuncMap = template.FuncMap{
 	"trimstr": func(cutset, s string) string {
 		return strings.Trim(s, cutset)
 	},
-	"index": func(array interface{}, i int32) interface{} {
+	"index": func(array interface{}, i int) interface{} {
 		slice := reflect.ValueOf(array)
 		if slice.Kind() != reflect.Slice {
 			panic("Error in index(): given a non-slice type")
 		}
-		if i < 0 || int(i) >= slice.Len() {
+		if i < 0 || i >= slice.Len() {
 			panic("Error in index(): index out of bounds")
 		}
-		return slice.Index(int(i)).Interface()
+		return slice.Index(i).Interface()
 	},
 	"add": func(a int, b int) int {
 		return a + b
@@ -146,9 +149,14 @@ var ProtoHelpersFuncMap = template.FuncMap{
 	"leadingComment":               leadingComment,
 	"trailingComment":              trailingComment,
 	"leadingDetachedComments":      leadingDetachedComments,
+	"stringFileOptionsExtension":   stringFileOptionsExtension,
+	"stringMessageExtension":       stringMessageExtension,
 	"stringFieldExtension":         stringFieldExtension,
+	"int64FieldExtension":          int64FieldExtension,
+	"int64MessageExtension":        int64MessageExtension,
 	"stringMethodOptionsExtension": stringMethodOptionsExtension,
 	"boolMethodOptionsExtension":   boolMethodOptionsExtension,
+	"boolMessageExtension":         boolMessageExtension,
 	"boolFieldExtension":           boolFieldExtension,
 	"isFieldMap":                   isFieldMap,
 	"fieldMapKeyType":              fieldMapKeyType,
@@ -156,6 +164,12 @@ var ProtoHelpersFuncMap = template.FuncMap{
 	"replaceDict":                  replaceDict,
 	"setStore":                     setStore,
 	"getStore":                     getStore,
+	"goPkg":                        goPkg,
+	"goPkgLastElement":             goPkgLastElement,
+	"cppType":                      cppType,
+	"cppTypeWithPackage":           cppTypeWithPackage,
+	"rustType":                     rustType,
+	"rustTypeWithPackage":          rustTypeWithPackage,
 }
 
 var pathMap map[interface{}]*descriptor.SourceCodeInfo_Location
@@ -282,12 +296,12 @@ func samePath(a, b []int32) bool {
 	return true
 }
 
-func findSourceInfoLocation(i interface{}) *descriptor.SourceCodeInfo_Location {
+/*func findSourceInfoLocation(i interface{}) *descriptor.SourceCodeInfo_Location {
 	if pathMap == nil {
 		return nil
 	}
 	return pathMap[i]
-}
+}*/
 
 func leadingComment(i interface{}) string {
 	loc := pathMap[i]
@@ -342,6 +356,46 @@ func stringMethodOptionsExtension(fieldID int32, f *descriptor.MethodDescriptorP
 	return *str
 }
 
+// stringFileOptionsExtension extracts file options of a string type.
+// To define your own extensions see:
+// https://developers.google.com/protocol-buffers/docs/proto#customoptions
+// Typically the fieldID of private extensions should be in the range:
+// 50000-99999
+func stringFileOptionsExtension(fieldID int32, f *descriptor.FileDescriptorProto) string {
+	if f == nil {
+		return ""
+	}
+	if f.Options == nil {
+		return ""
+	}
+	var extendedType *descriptor.FileOptions
+	var extensionType *string
+
+	eds := proto.RegisteredExtensions(f.Options)
+	if eds[fieldID] == nil {
+		ed := &proto.ExtensionDesc{
+			ExtendedType:  extendedType,
+			ExtensionType: extensionType,
+			Field:         fieldID,
+			Tag:           fmt.Sprintf("bytes,%d", fieldID),
+		}
+		proto.RegisterExtension(ed)
+		eds = proto.RegisteredExtensions(f.Options)
+	}
+
+	ext, err := proto.GetExtension(f.Options, eds[fieldID])
+	if err != nil {
+		return ""
+	}
+
+	str, ok := ext.(*string)
+	if !ok {
+		return ""
+	}
+
+	return *str
+}
+
 func stringFieldExtension(fieldID int32, f *descriptor.FieldDescriptorProto) string {
 	if f == nil {
 		return ""
@@ -377,6 +431,111 @@ func stringFieldExtension(fieldID int32, f *descriptor.FieldDescriptorProto) str
 	return *str
 }
 
+func int64FieldExtension(fieldID int32, f *descriptor.FieldDescriptorProto) int64 {
+	if f == nil {
+		return 0
+	}
+	if f.Options == nil {
+		return 0
+	}
+	var extendedType *descriptor.FieldOptions
+	var extensionType *int64
+
+	eds := proto.RegisteredExtensions(f.Options)
+	if eds[fieldID] == nil {
+		ed := &proto.ExtensionDesc{
+			ExtendedType:  extendedType,
+			ExtensionType: extensionType,
+			Field:         fieldID,
+			Tag:           fmt.Sprintf("varint,%d", fieldID),
+		}
+		proto.RegisterExtension(ed)
+		eds = proto.RegisteredExtensions(f.Options)
+	}
+
+	ext, err := proto.GetExtension(f.Options, eds[fieldID])
+	if err != nil {
+		return 0
+	}
+
+	i, ok := ext.(*int64)
+	if !ok {
+		return 0
+	}
+
+	return *i
+}
+
+func int64MessageExtension(fieldID int32, f *descriptor.DescriptorProto) int64 {
+	if f == nil {
+		return 0
+	}
+	if f.Options == nil {
+		return 0
+	}
+	var extendedType *descriptor.MessageOptions
+	var extensionType *int64
+
+	eds := proto.RegisteredExtensions(f.Options)
+	if eds[fieldID] == nil {
+		ed := &proto.ExtensionDesc{
+			ExtendedType:  extendedType,
+			ExtensionType: extensionType,
+			Field:         fieldID,
+			Tag:           fmt.Sprintf("varint,%d", fieldID),
+		}
+		proto.RegisterExtension(ed)
+		eds = proto.RegisteredExtensions(f.Options)
+	}
+
+	ext, err := proto.GetExtension(f.Options, eds[fieldID])
+	if err != nil {
+		return 0
+	}
+
+	i, ok := ext.(*int64)
+	if !ok {
+		return 0
+	}
+
+	return *i
+}
+
+func stringMessageExtension(fieldID int32, f *descriptor.DescriptorProto) string {
+	if f == nil {
+		return ""
+	}
+	if f.Options == nil {
+		return ""
+	}
+	var extendedType *descriptor.MessageOptions
+	var extensionType *string
+
+	eds := proto.RegisteredExtensions(f.Options)
+	if eds[fieldID] == nil {
+		ed := &proto.ExtensionDesc{
+			ExtendedType:  extendedType,
+			ExtensionType: extensionType,
+			Field:         fieldID,
+			Tag:           fmt.Sprintf("bytes,%d", fieldID),
+		}
+		proto.RegisterExtension(ed)
+		eds = proto.RegisteredExtensions(f.Options)
+	}
+
+	ext, err := proto.GetExtension(f.Options, eds[fieldID])
+	if err != nil {
+		return ""
+	}
+
+	str, ok := ext.(*string)
+	if !ok {
+		return ""
+	}
+
+	return *str
+}
+
 func boolMethodOptionsExtension(fieldID int32, f *descriptor.MethodDescriptorProto) bool {
 	if f == nil {
 		return false
@@ -393,7 +552,7 @@ func boolMethodOptionsExtension(fieldID int32, f *descriptor.MethodDescriptorPro
 			ExtendedType:  extendedType,
 			ExtensionType: extensionType,
 			Field:         fieldID,
-			Tag:           fmt.Sprintf("bytes,%d", fieldID),
+			Tag:           fmt.Sprintf("varint,%d", fieldID),
 		}
 		proto.RegisterExtension(ed)
 		eds = proto.RegisteredExtensions(f.Options)
@@ -447,6 +606,41 @@ func boolFieldExtension(fieldID int32, f *descriptor.FieldDescriptorProto) bool
 	return *b
 }
 
+func boolMessageExtension(fieldID int32, f *descriptor.DescriptorProto) bool {
+	if f == nil {
+		return false
+	}
+	if f.Options == nil {
+		return false
+	}
+	var extendedType *descriptor.MessageOptions
+	var extensionType *bool
+
+	eds := proto.RegisteredExtensions(f.Options)
+	if eds[fieldID] == nil {
+		ed := &proto.ExtensionDesc{
+			ExtendedType:  extendedType,
+			ExtensionType: extensionType,
+			Field:         fieldID,
+			Tag:           fmt.Sprintf("varint,%d", fieldID),
+		}
+		proto.RegisterExtension(ed)
+		eds = proto.RegisteredExtensions(f.Options)
+	}
+
+	ext, err := proto.GetExtension(f.Options, eds[fieldID])
+	if err != nil {
+		return false
+	}
+
+	b, ok := ext.(*bool)
+	if !ok {
+		return false
+	}
+
+	return *b
+}
+
 func init() {
 	for k, v := range sprig.TxtFuncMap() {
 		ProtoHelpersFuncMap[k] = v
@@ -722,6 +916,108 @@ func haskellType(pkg string, f *descriptor.FieldDescriptorProto) string {
 	}
 }
 
+// Warning does not handle message embedded like goTypeWithGoPackage does.
+func rustTypeWithPackage(f *descriptor.FieldDescriptorProto) string {
+	pkg := ""
+	if *f.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE || *f.Type == descriptor.FieldDescriptorProto_TYPE_ENUM {
+		if isTimestampPackage(*f.TypeName) {
+			pkg = "timestamp"
+		} else {
+			pkg = getPackageTypeName(*f.TypeName)
+		}
+	}
+	return rustType(pkg, f)
+}
+
+func rustType(pkg string, f *descriptor.FieldDescriptorProto) string {
+	isRepeat := *f.Label == descriptor.FieldDescriptorProto_LABEL_REPEATED
+	typeName := "???"
+	switch *f.Type {
+	case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
+		typeName = "f64"
+	case descriptor.FieldDescriptorProto_TYPE_FLOAT:
+		typeName = "f32"
+	case descriptor.FieldDescriptorProto_TYPE_INT64:
+		typeName = "i64"
+	case descriptor.FieldDescriptorProto_TYPE_UINT64:
+		typeName = "u64"
+	case descriptor.FieldDescriptorProto_TYPE_INT32:
+		typeName = "i32"
+	case descriptor.FieldDescriptorProto_TYPE_UINT32:
+		typeName = "u32"
+	case descriptor.FieldDescriptorProto_TYPE_BOOL:
+		typeName = "bool"
+	case descriptor.FieldDescriptorProto_TYPE_STRING:
+		typeName = "String"
+	case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
+		if pkg != "" {
+			pkg = pkg + "."
+		}
+		typeName = fmt.Sprintf("%s%s", pkg, shortType(*f.TypeName))
+	case descriptor.FieldDescriptorProto_TYPE_BYTES:
+		typeName = "Vec<u8>"
+	case descriptor.FieldDescriptorProto_TYPE_ENUM:
+		typeName = fmt.Sprintf("%s%s", pkg, shortType(*f.TypeName))
+	default:
+		break
+	}
+	if isRepeat {
+		return "Vec<" + typeName + ">"
+	}
+	return typeName
+}
+
+// Warning does not handle message embedded like goTypeWithGoPackage does.
+func cppTypeWithPackage(f *descriptor.FieldDescriptorProto) string {
+	pkg := ""
+	if *f.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE || *f.Type == descriptor.FieldDescriptorProto_TYPE_ENUM {
+		if isTimestampPackage(*f.TypeName) {
+			pkg = "timestamp"
+		} else {
+			pkg = getPackageTypeName(*f.TypeName)
+		}
+	}
+	return cppType(pkg, f)
+}
+
+func cppType(pkg string, f *descriptor.FieldDescriptorProto) string {
+	isRepeat := *f.Label == descriptor.FieldDescriptorProto_LABEL_REPEATED
+	typeName := "???"
+	switch *f.Type {
+	case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
+		typeName = "double"
+	case descriptor.FieldDescriptorProto_TYPE_FLOAT:
+		typeName = "float"
+	case descriptor.FieldDescriptorProto_TYPE_INT64:
+		typeName = "int64_t"
+	case descriptor.FieldDescriptorProto_TYPE_UINT64:
+		typeName = "uint64_t"
+	case descriptor.FieldDescriptorProto_TYPE_INT32:
+		typeName = "int32_t"
+	case descriptor.FieldDescriptorProto_TYPE_UINT32:
+		typeName = "uint32_t"
+	case descriptor.FieldDescriptorProto_TYPE_BOOL:
+		typeName = "bool"
+	case descriptor.FieldDescriptorProto_TYPE_STRING:
+		typeName = "std::string"
+	case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
+		if pkg != "" {
+			pkg = pkg + "."
+		}
+		typeName = fmt.Sprintf("%s%s", pkg, shortType(*f.TypeName))
+	case descriptor.FieldDescriptorProto_TYPE_BYTES:
+		typeName = "std::vector<uint8_t>"
+	case descriptor.FieldDescriptorProto_TYPE_ENUM:
+		typeName = fmt.Sprintf("%s%s", pkg, shortType(*f.TypeName))
+	default:
+		break
+	}
+	if isRepeat {
+		return "std::vector<" + typeName + ">"
+	}
+	return typeName
+}
+
 func goTypeWithEmbedded(pkg string, f *descriptor.FieldDescriptorProto, p *descriptor.FileDescriptorProto) string {
 	if pkg != "" {
 		pkg = pkg + "."
@@ -1128,3 +1424,13 @@ func replaceDict(src string, dict map[string]interface{}) string {
 	}
 	return src
 }
+
+func goPkg(f *descriptor.FileDescriptorProto) string {
+	return f.Options.GetGoPackage()
+}
+
+func goPkgLastElement(f *descriptor.FileDescriptorProto) string {
+	pkg := goPkg(f)
+	pkgSplitted := strings.Split(pkg, "/")
+	return pkgSplitted[len(pkgSplitted)-1]
+}

main.go

@@ -3,12 +3,13 @@ package main // import "moul.io/protoc-gen-gotemplate"
 import (
 	"io/ioutil"
 	"log"
+	"net/url"
 	"os"
 	"strings"
 
 	"github.com/golang/protobuf/proto"
 	"github.com/golang/protobuf/protoc-gen-go/generator"
-	"github.com/golang/protobuf/protoc-gen-go/plugin"
+	plugin_go "github.com/golang/protobuf/protoc-gen-go/plugin"
 	ggdescriptor "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor"
 
 	pgghelpers "moul.io/protoc-gen-gotemplate/helpers"
@@ -48,14 +49,12 @@ func main() {
 		debug             = false
 		all               = false
 		singlePackageMode = false
+		fileMode          = false
+		templateRepo      = ""
 	)
 	if parameter := g.Request.GetParameter(); parameter != "" {
 		for _, param := range strings.Split(parameter, ",") {
 			parts := strings.Split(param, "=")
-			if len(parts) != 2 {
-				log.Printf("Err: invalid parameter: %q", param)
-				continue
-			}
 			switch parts[0] {
 			case "template_dir":
 				templateDir = parts[1]
@@ -85,6 +84,20 @@ func main() {
 				default:
 					log.Printf("Err: invalid value for debug: %q", parts[1])
 				}
+			case "file-mode":
+				switch strings.ToLower(parts[1]) {
+				case boolTrue, "t":
+					fileMode = true
+				case boolFalse, "f":
+				default:
+					log.Printf("Err: invalid value for file-mode: %q", parts[1])
+				}
+			case "template_repo":
+				_, err := url.Parse(parts[1])
+				if err != nil {
+					log.Printf("Err: invalid value for template_repo: %q", parts[1])
+				}
+				templateRepo = parts[1]
 			default:
 				log.Printf("Err: unknown parameter: %q", param)
 			}
@@ -109,6 +122,21 @@ func main() {
 		}
 	}
 
+	if templateRepo != "" {
+		if templateDir, err = ioutil.TempDir("", "gen-*"); err != nil {
+			g.Error(err, "failed to create tmp dir")
+		}
+		defer func() {
+			if err := os.RemoveAll(templateDir); err != nil {
+				g.Error(err, "failed to remove tmp dir")
+			}
+		}()
+
+		if err = clone(templateRepo, templateDir); err != nil {
+			g.Error(err, "failed to clone repo")
+		}
+	}
+
 	// Generate the encoders
 	for _, file := range g.Request.GetProtoFile() {
 		if all {
@@ -125,6 +153,17 @@ func main() {
 			continue
 		}
 
+		if fileMode {
+			if s := file.GetService(); s != nil && len(s) > 0 {
+				encoder := NewGenericTemplateBasedEncoder(templateDir, file, debug, destinationDir)
+				for _, tmpl := range encoder.Files() {
+					concatOrAppend(tmpl)
+				}
+			}
+
+			continue
+		}
+
 		for _, service := range file.GetService() {
 			encoder := NewGenericServiceTemplateBasedEncoder(templateDir, service, file, debug, destinationDir)
 			for _, tmpl := range encoder.Files() {

rules.mk

@@ -0,0 +1,270 @@
+# +--------------------------------------------------------------+
+# | * * *                moul.io/rules.mk                        |
+# +--------------------------------------------------------------+
+# |                                                              |
+# |     ++              ______________________________________   |
+# |     ++++           /                                      \  |
+# |      ++++          |                                      |  |
+# |    ++++++++++      |   https://moul.io/rules.mk is a set  |  |
+# |   +++       |      |   of common Makefile rules that can  |  |
+# |   ++         |     |   be configured from the Makefile    |  |
+# |   +  -==   ==|     |   or with environment variables.     |  |
+# |  (   <*>   <*>     |                                      |  |
+# |   |          |    /|                      Manfred Touron  |  |
+# |   |         _)   / |                        manfred.life  |  |
+# |   |      +++    /  \______________________________________/  |
+# |    \      =+   /                                             |
+# |     \      +                                                 |
+# |     |\++++++                                                 |
+# |     |  ++++      ||//                                        |
+# |  ___|   |___    _||/__                                     __|
+# | /    ---    \   \|  |||                   __ _  ___  __ __/ /|
+# |/  |       |  \    \ /                    /  ' \/ _ \/ // / / |
+# ||  |       |  |    | |                   /_/_/_/\___/\_,_/_/  |
+# +--------------------------------------------------------------+
+
+all: help
+
+##
+## Common helpers
+##
+
+rwildcard = $(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
+
+##
+## rules.mk
+##
+ifneq ($(wildcard rules.mk),)
+.PHONY: rulesmk.bumpdeps
+rulesmk.bumpdeps:
+	wget -O rules.mk https://raw.githubusercontent.com/moul/rules.mk/master/rules.mk
+BUMPDEPS_STEPS += rulesmk.bumpdeps
+endif
+
+##
+## Maintainer
+##
+
+ifneq ($(wildcard .git/HEAD),)
+.PHONY: generate.authors
+generate.authors: AUTHORS
+AUTHORS: .git/
+	echo "# This file lists all individuals having contributed content to the repository." > AUTHORS
+	echo "# For how it is generated, see 'https://github.com/moul/rules.mk'" >> AUTHORS
+	echo >> AUTHORS
+	git log --format='%aN <%aE>' | LC_ALL=C.UTF-8 sort -uf >> AUTHORS
+GENERATE_STEPS += generate.authors
+endif
+
+##
+## Golang
+##
+
+ifndef GOPKG
+ifneq ($(wildcard go.mod),)
+GOPKG = $(shell sed '/module/!d;s/^omdule\ //' go.mod)
+endif
+endif
+ifdef GOPKG
+GO ?= go
+GOPATH ?= $(HOME)/go
+GOLIBS ?= $(shell find . -type f -name "go.mod" | grep -v /vendor/ | sed 's@/[^/]*$$@@' | sort | uniq)
+GO_INSTALL_OPTS ?=
+GO_TEST_OPTS ?= -test.timeout=30s
+
+ifdef GOBINS
+.PHONY: go.install
+go.install:
+	@set -e; for dir in $(GOBINS); do ( set -xe; \
+	  cd $$dir; \
+	  $(GO) install $(GO_INSTALL_OPTS) .; \
+	); done
+INSTALL_STEPS += go.install
+
+.PHONY: go.release
+go.release:
+	goreleaser --snapshot --skip-publish --rm-dist
+	@echo -n "Do you want to release? [y/N] " && read ans && \
+	  if [ $${ans:-N} = y ]; then set -xe; goreleaser --rm-dist; fi
+RELEASE_STEPS += go.release
+endif
+
+.PHONY: go.unittest coverage.txt
+go.unittest: coverage.txt
+coverage.txt:
+	@rm -f /tmp/coverage.txt
+	@touch /tmp/coverage.txt
+	@set -e; for dir in $(GOLIBS); do ( set -xe; \
+	  cd $$dir; \
+	  $(GO) test $(GO_TEST_OPTS) -cover -coverprofile=/tmp/profile.out -covermode=atomic -race ./...; \
+	  if [ -f /tmp/profile.out ]; then \
+	    cat /tmp/profile.out >> /tmp/coverage.txt; \
+	    rm -f /tmp/profile.out; \
+	  fi); done
+	mv /tmp/coverage.txt .
+
+.PHONY: go.coverfunc
+go.coverfunc: coverage.txt
+	go tool cover -func=./coverage.txt | grep -v .pb.go: | grep -v .pb.gw.go:
+
+.PHONY: go.lint
+go.lint:
+	@set -e; for dir in $(GOLIBS); do ( set -xe; \
+	  cd $$dir; \
+	  golangci-lint run --verbose ./...; \
+	); done
+
+.PHONY: go.tidy
+go.tidy:
+	@set -e; for dir in $(GOLIBS); do ( set -xe; \
+	  cd $$dir; \
+	  $(GO)	mod tidy; \
+	); done
+
+.PHONY: go.build
+go.build:
+	@set -e; for dir in $(GOLIBS); do ( set -xe; \
+	  cd $$dir; \
+	  $(GO)	build ./...; \
+	); done
+
+.PHONY: go.bump-deps
+go.bumpdeps:
+	@set -e; for dir in $(GOLIBS); do ( set -xe; \
+	  cd $$dir; \
+	  $(GO)	get -u ./...; \
+	); done
+
+.PHONY: go.bump-deps
+go.fmt:
+	if ! command -v goimports &>/dev/null; then GO111MODULE=off go get golang.org/x/tools/cmd/goimports; fi
+	@set -e; for dir in $(GOLIBS); do ( set -xe; \
+	  cd $$dir; \
+	  goimports -w . \
+	); done
+
+BUILD_STEPS += go.build
+BUMPDEPS_STEPS += go.bumpdeps
+TIDY_STEPS += go.tidy
+LINT_STEPS += go.lint
+UNITTEST_STEPS += go.unittest
+FMT_STEPS += go.fmt
+endif
+
+##
+## Node
+##
+
+ifndef NPM_PACKAGES
+ifneq ($(wildcard package.json),)
+NPM_PACKAGES = .
+endif
+endif
+ifdef NPM_PACKAGES
+.PHONY: npm.publish
+npm.publish:
+	@echo -n "Do you want to npm publish? [y/N] " && read ans && \
+	@if [ $${ans:-N} = y ]; then \
+	  set -e; for dir in $(NPM_PACKAGES); do ( set -xe; \
+	    cd $$dir; \
+	    npm publish --access=public; \
+	  ); done; \
+	fi
+RELEASE_STEPS += npm.publish
+endif
+
+##
+## Docker
+##
+
+ifndef DOCKER_IMAGE
+ifneq ($(wildcard Dockerfile),)
+DOCKER_IMAGE = $(notdir $(PWD))
+endif
+endif
+ifdef DOCKER_IMAGE
+ifneq ($(DOCKER_IMAGE),none)
+.PHONY: docker.build
+docker.build:
+	docker build \
+	  --build-arg VCS_REF=`git rev-parse --short HEAD` \
+	  --build-arg BUILD_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"` \
+	  --build-arg VERSION=`git describe --tags --always` \
+	  -t $(DOCKER_IMAGE) .
+
+BUILD_STEPS += docker.build
+endif
+endif
+
+##
+## Common
+##
+
+TEST_STEPS += $(UNITTEST_STEPS)
+TEST_STEPS += $(LINT_STEPS)
+TEST_STEPS += $(TIDY_STEPS)
+
+ifneq ($(strip $(TEST_STEPS)),)
+.PHONY: test
+test: $(PRE_TEST_STEPS) $(TEST_STEPS)
+endif
+
+ifdef INSTALL_STEPS
+.PHONY: install
+install: $(PRE_INSTALL_STEPS) $(INSTALL_STEPS)
+endif
+
+ifdef UNITTEST_STEPS
+.PHONY: unittest
+unittest: $(PRE_UNITTEST_STEPS) $(UNITTEST_STEPS)
+endif
+
+ifdef LINT_STEPS
+.PHONY: lint
+lint: $(PRE_LINT_STEPS) $(FMT_STEPS) $(LINT_STEPS)
+endif
+
+ifdef TIDY_STEPS
+.PHONY: tidy
+tidy: $(PRE_TIDY_STEPS) $(TIDY_STEPS)
+endif
+
+ifdef BUILD_STEPS
+.PHONY: build
+build: $(PRE_BUILD_STEPS) $(BUILD_STEPS)
+endif
+
+ifdef RELEASE_STEPS
+.PHONY: release
+release: $(PRE_RELEASE_STEPS) $(RELEASE_STEPS)
+endif
+
+ifdef BUMPDEPS_STEPS
+.PHONY: bumpdeps
+bumpdeps: $(PRE_BUMDEPS_STEPS) $(BUMPDEPS_STEPS)
+endif
+
+ifdef FMT_STEPS
+.PHONY: fmt
+fmt: $(PRE_FMT_STEPS) $(FMT_STEPS)
+endif
+
+ifdef GENERATE_STEPS
+.PHONY: generate
+generate: $(PRE_GENERATE_STEPS) $(GENERATE_STEPS)
+endif
+
+.PHONY: help
+help:
+	@echo "General commands:"
+	@[ "$(BUILD_STEPS)" != "" ]     && echo "  build"     || true
+	@[ "$(BUMPDEPS_STEPS)" != "" ]  && echo "  bumpdeps"  || true
+	@[ "$(FMT_STEPS)" != "" ]       && echo "  fmt"       || true
+	@[ "$(GENERATE_STEPS)" != "" ]  && echo "  generate"  || true
+	@[ "$(INSTALL_STEPS)" != "" ]   && echo "  install"   || true
+	@[ "$(LINT_STEPS)" != "" ]      && echo "  lint"      || true
+	@[ "$(RELEASE_STEPS)" != "" ]   && echo "  release"   || true
+	@[ "$(TEST_STEPS)" != "" ]      && echo "  test"      || true
+	@[ "$(TIDY_STEPS)" != "" ]      && echo "  tidy"      || true
+	@[ "$(UNITTEST_STEPS)" != "" ]  && echo "  unittest"  || true
+	@# FIXME: list other commands