more on branches

Makefile

@@ -25,3 +25,8 @@ goimports:
 install: goimports
 	GO111MODULE=off go install \
 		-ldflags "-X main.VERSION=${VERSION} -X main.BUILDTIME=${BUILDTIME} -X gui.GUIVERSION=${VERSION}"
+
+clean:
+	rm -f go.*
+	rm -f going2git
+	-go-mod-clean --purge

go.tools

@@ -1,2 +0,0 @@
-cmake
-libssl-dev

main.go

@@ -1,13 +1,51 @@
 package main
 
+import (
+	"os"
+
+	git "go.wit.com/lib/libgit2"
+	"go.wit.com/log"
+)
+
 // are sent via -ldflags at buildtime
 var VERSION string
 var BUILDTIME string
 
 func main() {
+	var repo *git.Repository
 	if argv.Refs {
-		showRefs()
+		repo, _ = showRefs()
 	} else {
 		testMessage()
 	}
+	if repo == nil {
+		os.Exit(-1)
+	}
+	walkBranches(repo)
+}
+
+func walkBranches(repo *git.Repository) *git.Branch {
+	i, err := repo.NewBranchIterator(git.BranchLocal)
+	if err != nil {
+		log.Info("walkBranches() error", err)
+		return nil
+	}
+
+	for {
+		b, bt, err := i.Next()
+		if git.IsErrorCode(err, git.ErrorCodeIterOver) {
+			return nil
+		}
+		name, _ := b.Name()
+		if name == "jcarr" {
+			log.Info("found BranchLocal", name)
+			return b
+		}
+		if bt == git.BranchLocal {
+			log.Info("BranchLocal", name)
+		} else {
+			log.Info("Branch", name, bt)
+		}
+	}
+	return nil
 }

refs.go

@@ -8,18 +8,18 @@ import (
 	"go.wit.com/log"
 )
 
-func showRefs() error {
+func showRefs() (*git.Repository, error) {
 	log.Info("how do you do this with libgit2 and git2go? notsure.")
 	repo, err := git.OpenRepository(argv.RepoPath)
 	if err != nil {
 		log.Info("open failed", argv.RepoPath, err)
-		return err
+		return nil, err
 	}
 	ref, err := repo.Head()
 	log.Info("head", ref, err, ref.Name())
 	fmt.Printf("%+v\n", ref)
 	walkRepo(repo)
-	return nil
+	return repo, nil
 }
 
 func walkRepo(repo *git.Repository) {
@@ -27,12 +27,14 @@ func walkRepo(repo *git.Repository) {
 	exitIf(err)
 
 	for {
-		ref, err := ri.Next()
+		var ref *git.Reference
+		var err error
+		ref, err = ri.Next()
 		if err != nil {
 			log.Info("done", err)
 			return
 		}
-		log.Info("head", ref, err, ref.Name(), ref.SymbolicTarget(), ref.Shorthand())
+		log.Info("walkRepo() head", ref, err, "ref.Name =", ref.Name(), ref.SymbolicTarget(), ref.Shorthand())
 		// fmt.Printf("%+v\n", ref)
 		// SymbolicTarget()
 	}