From dbbc35dd247443d578777e6377f263d07c155705 Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Fri, 13 Dec 2024 10:44:11 -0600
Subject: [PATCH] scheme to store files in git notes

---
 main.go | 56 +++++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 39 insertions(+), 17 deletions(-)

diff --git a/main.go b/main.go
index 8d6cdf4..3dcc969 100644
--- a/main.go
+++ b/main.go
@@ -36,6 +36,10 @@ func main() {
 		os.Exit(-1)
 	}
 
+	if err := check.ValidGoSum(); err == nil {
+		okExit("go.mod and go.sum are already valid")
+	}
+
 	// skip restore if --force
 	if !argv.Force {
 		// try to restore from the git metadata
@@ -101,10 +105,10 @@ func findPwdRepo() *gitpb.Repo {
 	return nil
 }
 
-func okExit(thing string) {
+func okExit(msg string) {
+	log.Info("exit() go-mod-clean on", check.GetGoPath(), "ok")
 	log.DaemonMode(true)
-	log.Info(thing, "ok")
-	// log.Info("Finished go-mod-clean on", check.GetGoPath(), "ok")
+	log.Info(msg)
 	os.Exit(0)
 }
 
@@ -121,17 +125,21 @@ func saveAsMetadata(repo *gitpb.Repo) error {
 	if err := check.StrictRun(cmd); err != nil {
 		return err
 	}
+	cmd = []string{"git", "notes", "add", "-m", "// `autogen:go.mod`", cname}
+	if err := check.StrictRun(cmd); err != nil {
+		return err
+	}
 	if check.GoPrimitive {
-		cmd = []string{"git", "notes", "add", "-F", "go.mod", cname}
+		cmd = []string{"git", "notes", "append", "-F", "go.mod", cname}
 		if err := check.StrictRun(cmd); err != nil {
 			return err
 		}
 	} else {
-		cmd = []string{"git", "notes", "add", "-F", "go.mod", cname}
+		cmd = []string{"git", "notes", "append", "-F", "go.mod", cname}
 		if err := check.StrictRun(cmd); err != nil {
 			return err
 		}
-		cmd = []string{"git", "notes", "append", "-m", "GOSUM:", cname}
+		cmd = []string{"git", "notes", "append", "-m", "// `autogen:go.sum`", cname}
 		if err := check.StrictRun(cmd); err != nil {
 			return err
 		}
@@ -155,17 +163,31 @@ func restoreFromGit(repo *gitpb.Repo) bool {
 		return false
 	}
 
-	all := strings.Join(result.Stdout, "\n")
-	parts := strings.Split(all, "GOSUM:")
-
-	gomod := filepath.Join(filepath.Join(check.FullPath, "go.mod"))
-	newf, _ := os.OpenFile(gomod, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
-	fmt.Fprint(newf, strings.TrimSpace(parts[0]))
-
-	if len(parts) == 2 {
-		gosum := filepath.Join(filepath.Join(check.FullPath, "go.sum"))
-		newf, _ := os.OpenFile(gosum, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
-		fmt.Fprint(newf, strings.TrimSpace(parts[1]))
+	var newf *os.File
+	var body string
+	for _, line := range result.Stdout {
+		if strings.HasPrefix(line, "// `autogen:") {
+			if newf != nil {
+				fmt.Fprintln(newf, strings.TrimSpace(body))
+				newf.Close()
+				newf = nil
+				body = ""
+			}
+			fbase := strings.TrimPrefix(line, "// `autogen:")
+			fbase = strings.TrimSpace(fbase)
+			fbase = strings.TrimSuffix(fbase, "`")
+			// if line == // `autogen:`  , then the filename is blank
+			if fbase != "" {
+				fname := filepath.Join(filepath.Join(check.FullPath, fbase))
+				newf, _ = os.OpenFile(fname, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
+			}
+			continue
+		}
+		body += line + "\n"
+	}
+	if newf != nil {
+		fmt.Fprintln(newf, strings.TrimSpace(body))
+		newf.Close()
 	}
 	return true
 }