make a protofile for the app itself

that turns out to be a lot of fun!

Makefile

@@ -1,20 +1,37 @@
 VERSION = $(shell git describe --tags)
-BUILDTIME = $(shell date +%Y.%m.%d)
+BUILDTIME = $(shell date +%Y.%m.%d_%H%M)
 
-run: goimports vet install
+test: goimports build auto
+
+full: clean goimports auto vet install
 
 vet:
 	@GO111MODULE=off go vet
 	@echo this go binary package should build okay
 
+cleanbuild:
+	rm -f auto.marshal.pb.go auto.sort.pb.go autogenpb
+
 build:
 	GO111MODULE=off go build \
 		-ldflags "-X main.VERSION=${VERSION} -X main.BUILDTIME=${BUILDTIME} -X gui.GUIVERSION=${VERSION}"
 
+bak:
+	mv -f autogenpb autogenpb.last
+
 install:
 	GO111MODULE=off go install \
 		-ldflags "-X main.VERSION=${VERSION} -X main.BUILDTIME=${BUILDTIME} -X gui.GUIVERSION=${VERSION}"
 
+auto.pb.go: auto.proto
+	./autogenpb --proto auto.proto --package testfiles
+	rm -f auto.sort.pb.go auto.marshal.pb.go
+
+auto:
+	cd testfiles; rm -f go.* *.pb.go
+	cd testfiles; ../autogenpb --proto auto.proto --package yellow
+	cd testfiles; GO111MODULE=off go vet
+
 goimports:
 	goimports -w *.go
 
@@ -25,8 +42,7 @@ redomod:
 	go mod edit -go=1.20
 
 reset:
-	# clear your terminal
-	reset
+	-rm -f auto.sort.pb.go
 
 clean:
 	-rm -f go.*

addMutex.go

@@ -13,8 +13,8 @@ import (
 	"go.wit.com/log"
 )
 
-func addMutex(names map[string]string) error {
-	fullname := names["protobase"] + ".pb.go"
+func (pb *Files) addMutex(f *File) error {
+	fullname := f.Filebase + ".pb.go"
 	log.Info("fullname:", fullname)
 	data, err := os.ReadFile(fullname)
 	if err != nil {
@@ -22,14 +22,21 @@ func addMutex(names map[string]string) error {
 		return err
 	}
 
-	w, _ := os.OpenFile(names["protobase"]+".pb.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
+	w, _ := os.OpenFile(f.Filebase+".pb.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
 
 	var found bool
 
 	lines := strings.Split(string(data), "\n")
 	for _, line := range lines {
+		if strings.HasPrefix(line, "package ") {
+			log.Info("CHANGING package:", line, "to package:", f.Package)
+			fmt.Fprintln(w, "package "+f.Package)
+			// log.Info("CHANGING package:", line, "to package:main")
+			// fmt.Fprintln(w, "package "+"main")
+			continue
+		}
 		// log.Info("line:", line)
-		start := "type " + names["Bases"] + " struct {"
+		start := "type " + "sunshine" + " struct {"
 		if strings.HasSuffix(line, start) {
 			found = true
 			log.Info("FOUND line:", line)

apple.proto

@@ -1,21 +0,0 @@
-syntax = "proto3";
-
-// experiment to identify .pb files incase things go sideways
-package autogenpb;
-
-message Apple {	       	        	// `autogenpb:marshal`
-	string   name           = 1;    // `autogenpb:unique` // generates SortByName() functions
-	string   genus          = 2;    // `autogenpb:unique` // generates SortByGenus() functions
-}
-
-// autogenpb:no-sort // means don't generate sort functions
-message Apples {	        	// `autogenpb:marshal`
-	string   uuid	        = 1;    // could be useful for /usr/share/file/magic someday?
-	string   version        = 2;    // could be used for protobuf schema change violations?
-}
-
-// `autogenpb:no-sort autogenpb:no-marshal` // means don't generate sort functions
-message Pears {
-	string   uuid	        = 1;    // could be useful for /usr/share/file/magic someday?
-	string   version        = 2;    // could be used for protobuf schema change violations?
-}

argv.go

@@ -9,6 +9,7 @@ package main
 var argv args
 
 type args struct {
+	Package   string   `arg:"--package"                 help:"the package name"`
 	LoBase    string   `arg:"--lobase"                  help:"lowercase basename"`
 	UpBase    string   `arg:"--upbase"                  help:"uppercase basename"`
 	Proto     string   `arg:"--proto"                   help:"the .proto filename"`

header.go

@@ -6,7 +6,8 @@ import (
 )
 
 func headerComment(w io.Writer) {
-	fmt.Fprintln(w, "")
+	// technically this should be the first line and in this exact format:
+	fmt.Fprintln(w, "// Code generated by go.wit.com/apps/autogenpb. DO NOT EDIT.")
 	fmt.Fprintln(w, "// This file was autogenerated with autogenpb", VERSION, "DO NOT EDIT")
 	fmt.Fprintln(w, "//     go install go.wit.com/apps/autogenpb@latest")
 	fmt.Fprintln(w, "//")
@@ -23,8 +24,9 @@ func headerComment(w io.Writer) {
 }
 
 func header(w io.Writer, names map[string]string) {
-	fmt.Fprintln(w, "package "+names["package"])
+	// header must come first
 	headerComment(w)
+	fmt.Fprintln(w, "package "+names["package"])
 	fmt.Fprintln(w, "import (")
 	fmt.Fprintln(w, "	\"fmt\"")
 	fmt.Fprintln(w, "	\"sort\"")

main.go

@@ -28,6 +28,9 @@ var uniqueKeys []string
 func main() {
 	pp := arg.MustParse(&argv)
 
+	var pb *Files
+	pb = new(Files)
+
 	// you need a proto file
 	if argv.Proto == "" {
 		log.Info("you must provide --proto <filename>")
@@ -47,10 +50,9 @@ func main() {
 		os.Exit(-1)
 	}
 
-	if err := findGlobalAutogenpb(argv.Proto); err != nil {
-		log.Info("autogenpb parse error:", err)
-		os.Exit(-1)
-	}
+	f := new(File)
+	pb.Files = append(pb.Files, f)
+	f.Filename = argv.Proto
 
 	// todo, look for go.work files
 	if argv.GoSrc == "" {
@@ -65,45 +67,42 @@ func main() {
 	}
 	log.Info(argv.GoSrc, argv.GoPath)
 
+	pwd, _ := os.Getwd()
+	log.Info("pwd = ", pwd)
+
 	if !shell.Exists("go.sum") {
 		shell.RunQuiet([]string{"go", "mod", "init"})
 		shell.RunQuiet([]string{"go", "mod", "tidy"})
-		shell.RunQuiet([]string{"go", "mod", "edit", "-go=1.18"}) // TODO: make this a global
+		shell.RunQuiet([]string{"go", "mod", "edit", "-go=1.18"}) // TODO: pass this as ENV. verify protobuf version needed
 	}
 
+	var packageName string
 	var result cmd.Status
 	var cmd []string
-	// if forge.IsGoWork() {
-	if false {
-		cmd = []string{"go", "work", "use"}
-		result = shell.Run(cmd)
-		log.Info(strings.Join(result.Stdout, "\n"))
-		log.Info(strings.Join(result.Stderr, "\n"))
-		if !shell.Exists("go.mod") {
-			cmd = []string{"go", "mod", "init"}
-			result = shell.Run(cmd)
-			log.Info(strings.Join(result.Stdout, "\n"))
-			log.Info(strings.Join(result.Stderr, "\n"))
-		}
-		cmd = []string{"go", "list", "-f", "'{{.Name}}'"}
-		result = shell.Run(cmd)
-		log.Info(strings.Join(result.Stdout, "\n"))
-		log.Info(strings.Join(result.Stderr, "\n"))
-	} else {
+	if argv.Package == "" {
 		// TODO: switch to using forgepb
 		// switch to forgepb
 		os.Setenv("GO111MODULE", "off") // keeps go list working if go version is back versioned for compatability
 		cmd = []string{"go", "list", "-f", "'{{.Name}}'"}
 		result = shell.RunQuiet(cmd)
 		os.Unsetenv("GO111MODULE")
-	}
 
-	packageName := strings.Join(result.Stdout, "\n")
+		packageName = strings.Join(result.Stdout, "\n")
 		packageName = strings.TrimSpace(packageName)
 		packageName = strings.Trim(packageName, "'")
 		// log.Info("packageName == ", packageName)
+	} else {
+		packageName = argv.Package
+	}
+	f.Package = packageName
 
 	protobase := strings.TrimSuffix(argv.Proto, ".proto")
+	f.Filebase = protobase
+
+	if err := pb.findGlobalAutogenpb(f); err != nil {
+		log.Info("autogenpb parse error:", err)
+		os.Exit(-1)
+	}
 
 	sortmap = make(map[string]string)
 	sortmap["package"] = packageName
@@ -132,19 +131,26 @@ func main() {
 	}
 
 	// parse sort & marshal options from the .proto file
+	// this goes through the .proto files and looks
+	// for `autogenpb: ` lines
 	if err := findAutogenpb(sortmap); err != nil {
 		log.Info("autogenpb parse error:", err)
 		os.Exit(-1)
 	}
 
 	// try to make foo.pb.go with protoc if it's not here
+	// this is helpful because the protoc-gen-go lines
+	// are also annoying to code by hand
 	sortmap["protoc"] = protobase + ".pb.go"
 	if !shell.Exists(sortmap["protoc"]) {
 		if err := protocBuild(sortmap); err != nil {
 			log.Info("protoc build error:", err)
 			os.Exit(-1)
 		}
+		pb.addMutex(f)
+		os.Exit(0)
 
+		/*
 			// experiment to add a mutex to the structs.
 			// this might fix my other not so great lock implementation on sort (?)
 			// seems to work, but proto.Marshal() breaks with nil reference
@@ -158,6 +164,7 @@ func main() {
 					sortmap["mutex"] = "false"
 				}
 			}
+		*/
 	}
 
 	// if foo.pb.go still doesn't exist, protoc failed

parseProtoFile.go

@@ -43,10 +43,10 @@ func findAutogenpb(names map[string]string) error {
 	return nil
 }
 
-func findGlobalAutogenpb(filename string) error {
+func (pb *Files) findGlobalAutogenpb(f *File) error {
 	// log.Info("starting findAutogenpb() on", filename)
 	// read in the .proto file
-	data, err := os.ReadFile(filename)
+	data, err := os.ReadFile(f.Filename)
 	if err != nil {
 		// log.Info("open config file :", err)
 		return err

protoc.go

@@ -42,6 +42,11 @@ func protocBuild(names map[string]string) error {
 	pwd, _ := os.Getwd()
 	log.Info("go.Getwd()", pwd)
 	if !strings.HasPrefix(pwd, argv.GoSrc) {
+		log.Info("are you building using a go.work file? If so,")
+		log.Info("your paths will not match because the default")
+		log.Info("is to use ~/go/src so you have to specify")
+		log.Info("where your path is with --go-src")
+		log.Info("todo: use forgepb to figure this out")
 		return errors.New("paths don't match")
 	}
 	gopath := strings.TrimPrefix(pwd, argv.GoSrc)