figure out the version

Signed-off-by: Jeff Carr <jcarr@wit.com>

draw.go

@@ -76,7 +76,8 @@ func draw(rs *RepoStatus) {
 
 	rs.releaseVersion = rs.grid.NewButton("release version", func() {
 		lasttag := rs.lasttag.Get()
-		log.Warn("Should release version here", lasttag)
+		ver := normalizeVersion(lasttag)
+		log.Warn("Should release version here", lasttag, ver)
 	})
 	rs.releaseVersion.Disable()
 

unix.go

@@ -5,6 +5,7 @@ import 	(
 	"os"
 	"os/exec"
 	"strings"
+	"regexp"
 
 	"go.wit.com/log"
 )
@@ -52,3 +53,39 @@ func listFiles(directory string) []string {
 
 	return files
 }
+
+/*
+// string handling examples that might be helpful for normalizeInt()
+isAlpha := regexp.MustCompile(`^[A-Za-z]+$`).MatchString
+
+for _, username := range []string{"userone", "user2", "user-three"} {
+    if !isAlpha(username) {
+        log.Log(GUI, "%q is not valid\n", username)
+    }
+}
+
+const alpha = "abcdefghijklmnopqrstuvwxyz"
+
+func alphaOnly(s string) bool {
+   for _, char := range s {
+      if !strings.Contains(alpha, strings.ToLower(string(char))) {
+         return false
+      }
+   }
+   return true
+}
+*/
+
+func normalizeVersion(s string) string {
+	// reg, err := regexp.Compile("[^a-zA-Z0-9]+")
+	parts := strings.Split(s, "-")
+	if len(parts) == 0 { return "" }
+	reg, err := regexp.Compile("[^0-9.]+")
+	if err != nil {
+		log.Log(WARN, "normalizeVersion() regexp.Compile() ERROR =", err)
+		return parts[0]
+	}
+	clean := reg.ReplaceAllString(parts[0], "")
+	log.Log(WARN, "normalizeVersion() s =", clean)
+	return clean
+}