print status when git is in a dirt state - fixes #10

pkg/utils/git.go

@@ -3,12 +3,12 @@ package utils
 import "strings"
 
 // IsDirty checks whether a repository is in a dirty state (has uncommitted changes).
-func IsDirty() bool {
+func IsDirty() (bool, string) {
 	out, err := RunCommand("git", "status", "--porcelain")
 	if strings.TrimSpace(out) != "" || err != nil {
-		return true
+		return true, out
 	}
-	return false
+	return false, ""
 }
 
 // GetTag gets the latest git tag for a repository.

pkg/v1/stages/setup/setup.go

@@ -43,11 +43,12 @@ func (Stage) Run(ctx *ctx.Context) error {
 	}
 
 	log.Debug("checking if git is in a clean state")
-	if utils.IsDirty() {
+	if isDirty, out := utils.IsDirty(); isDirty {
 		if ctx.AllowDirty {
 			log.Info("allowing git to be in a dirty state")
 		} else {
 			if err := ctx.CheckDryRun(ErrDirtyGit); err != nil {
+				log.Errorf("dirty git state detected\n" + out)
 				return err
 			}
 		}