save and restore from git notes

1 files changed, 85 insertions, 0 deletions

diff --git a/redoGoMod.go b/redoGoMod.go
new file mode 100644
index 0000000..f25a3b4
--- /dev/null
+++ b/redoGoMod.go
@@ -0,0 +1,85 @@
+package main
+
+// recreates the go.mod and go.sum files
+
+import (
+	"errors"
+	"os"
+
+	"go.wit.com/lib/protobuf/gitpb"
+	"go.wit.com/log"
+)
+
+// remove every go.mod and go.sum
+// testing to see where this stuff is coming from
+func eraseGoMod(repo *gitpb.Repo) {
+	// unset the go development ENV var to generate release files
+	if err := repo.StrictRun([]string{"rm", "-f", "go.mod", "go.sum"}); err != nil {
+		log.Warn(repo.GoPath, "rm go.mod go.sum failed", err)
+	}
+}
+
+// sets the required golang version in go.mod
+func setGoVersion(repo *gitpb.Repo, version string) error {
+	// most things should build with golang after 1.20
+	if err := repo.StrictRun([]string{"go", "mod", "edit", "-go=" + version}); err != nil {
+		log.Warn(repo.GoPath, "go mod edit failed", err)
+		return err
+	}
+	return nil
+}
+
+// wrapper around 'go mod init' and 'go mod tidy'
+func redoGoMod(repo *gitpb.Repo) (bool, error) {
+	// unset the go development ENV var to generate release files
+	os.Unsetenv("GO111MODULE")
+	if err := repo.StrictRun([]string{"rm", "-f", "go.mod", "go.sum"}); err != nil {
+		log.Warn("rm go.mod go.sum failed", err)
+		return false, err
+	}
+	if err := repo.StrictRun([]string{"go", "mod", "init", repo.GoPath}); err != nil {
+		log.Warn("go mod init failed", err)
+		return false, err
+	}
+	if err := repo.StrictRun([]string{"go", "mod", "tidy"}); err != nil {
+		log.Warn("go mod tidy failed", err)
+		return false, err
+	}
+
+	// most things should build with golang after 1.20 // todo: allow this to be set somewhere
+	if err := setGoVersion(repo, "1.20"); err != nil {
+		log.Warn(repo.GoPath, "go mod edit failed", err)
+		return false, err
+	}
+
+	repo.GoDeps = nil
+	repo.GoPrimitive = false
+
+	// if there is not a go.sum file, it better be a primitive golang project
+	if !repo.Exists("go.sum") {
+		// this should never happen
+		return false, errors.New("MakeRedomod() logic failed")
+
+		ok, err := repo.IsPrimitive()
+		if err != nil {
+			// this means this repo does not depend on any other package
+			log.Info("PRIMATIVE repo error:", repo.GoPath, "err =", err)
+			return false, err
+		}
+
+		if ok {
+			// this means the repo is primitive so there is no go.sum
+			repo.GoPrimitive = true
+			return true, nil
+		}
+	}
+
+	repo.GoDeps = new(gitpb.GoDeps)
+	if !repo.Exists("go.sum") {
+		// this should never happen
+		return false, errors.New("MakeRedomod() logic failed")
+	}
+
+	// return the attempt to parse go.sum
+	return repo.ParseGoSum()
+}