feat: add switch to print prior version0.2.0

1 files changed, 8 insertions, 1 deletions

diff --git a/main.go b/main.go
index dba9462..8fd73a1 100644
--- a/main.go
+++ b/main.go
@@ -132,7 +132,9 @@ var (
 	validPartArgs     = []string{"major", "minor", "patch"}
 	preReleaseFmtArgs = make(map[string]string)
 	preRelease        bool
-	rootCmd           = &cobra.Command{
+	printLastVersion  bool
+
+	rootCmd = &cobra.Command{
 		Use:     "bumpver part [major|minor|patch] file [-|file]",
 		Short:   "A tool for bumping semver git tags.",
 		Example: cmdExamples,
@@ -169,6 +171,10 @@ var (
 			if (lastVersion == &semver.Version{}) {
 				return errors.New("No tags found. Not doing anything")
 			}
+			if printLastVersion {
+				fmt.Fprint(cmd.OutOrStdout(), lastVersion)
+				return nil
+			}
 			versionPart := ""
 			if preRelease {
 				versionPart = part
@@ -274,6 +280,7 @@ func init() {
 	}
 
 	rootCmd.PersistentFlags().BoolVarP(&preRelease, "prerelease", "p", false, "create a prerelease tag for the (major|minor|patch)")
+	rootCmd.PersistentFlags().BoolVarP(&printLastVersion, "last-version", "l", false, "print version just before the bump that would occur")
 	rootCmd.PersistentFlags().String("prerelease-fmt", "PR.$KeyArg PR_NUM.$BumpInt", "The format string for prerelease versions")
 	rootCmd.PersistentFlags().StringToStringVarP(&preReleaseFmtArgs, "key-args", "k", nil, "key=arg for the fmt string")
 	rootCmd.PersistentFlags().String("repo-dir", cwd, "repo to examine")