feat(cli): add current version command

README.md

@@ -194,7 +194,8 @@ following command:
 Print the next version, can be used to add version to your program
 
 ```bash
-./go-semantic-release next
+./go-semantic-release next // show next version (calculated by new commits since last version)
+./go-semantic-release last // show last released version 
 ```
 Example with go-lang
 

cmd/go-semantic-release/commands/last.go

@@ -0,0 +1,58 @@
+package commands
+
+import (
+	"fmt"
+	"github.com/Nightapes/go-semantic-release/pkg/semanticrelease"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(lastCmd)
+}
+
+var lastCmd = &cobra.Command{
+	Use:   "last",
+	Short: "Get last version",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		config, err := cmd.Flags().GetString("config")
+		if err != nil {
+			return err
+		}
+
+		repository, err := cmd.Flags().GetString("repository")
+		if err != nil {
+			return err
+		}
+
+		force, err := cmd.Flags().GetBool("no-cache")
+		if err != nil {
+			return err
+		}
+
+		ignoreConfigChecks, err := cmd.Flags().GetBool("no-checks")
+		if err != nil {
+			return err
+		}
+
+		s, err := semanticrelease.New(readConfig(config), repository, !ignoreConfigChecks)
+		if err != nil {
+			return err
+		}
+
+		provider, err := s.GetCIProvider()
+
+		if err != nil {
+			log.Infof("Will not calculate version, set fake version. Could not find CI Provider, if running locally, set env CI=true")
+			fmt.Println("0.0.0-fake.0")
+			return nil
+		}
+
+		releaseVersion, err := s.GetNextVersion(provider, force)
+		if err != nil {
+			return err
+		}
+		fmt.Println(releaseVersion.Last.Version.String())
+		return nil
+	},
+}