minor update to how resolveScript works to allow 'show' command to di…

…stinguish bare playbooks vs scriptnames

cmd/main.go

@@ -213,10 +213,10 @@ func resolveScript(cmdName string, scriptName string, curPlaybookFile string, al
 	if playFile == "" {
 		playFile = "."
 	}
-	if playScript == "" {
+	if !allowBarePlaybook && playScript == "" {
 		return emptyRtn, fmt.Errorf("playbook script name cannot be empty")
 	}
-	if !mdparser.IsValidScriptName(playScript) {
+	if playScript != "" && !mdparser.IsValidScriptName(playScript) {
 		return emptyRtn, fmt.Errorf("invalid characters in playbook script name '%s'", playScript)
 	}
 	return commanddef.ScriptDef{PlaybookFile: playFile, PlaybookScript: playScript}, nil

pkg/pathutil/pathutil.go

@@ -126,13 +126,19 @@ func SplitScriptName(scriptName string) (string, string, error) {
 		fields := strings.SplitN(scriptName, "::", 2)
 		return fields[0], fields[1], nil
 	}
+	if strings.HasSuffix(scriptName, ".md") {
+		return scriptName, "", nil
+	}
 	if strings.HasPrefix(scriptName, "^") {
 		return "^", scriptName[1:], nil
 	}
 	m := dotPrefixRe.FindStringSubmatch(scriptName)
 	if m != nil {
 		return m[1], scriptName[len(m[1]):], nil
 	}
+	if strings.HasPrefix(scriptName, ".") {
+		return scriptName, "", nil
+	}
 	return "", scriptName, nil
 }
 

pkg/pathutil/pathutil_test.go

@@ -27,6 +27,16 @@ func TestSplitScriptName(t *testing.T) {
 	trySplit(t, "@sawka::foo", "@sawka", "foo")
 	trySplit(t, ".hello.md::test", ".hello.md", "test")
 	trySplit(t, "./foo.md::bar", "./foo.md", "bar")
+	trySplit(t, ".", ".", "")
+	trySplit(t, "..", "..", "")
+	trySplit(t, "^", "^", "")
+	trySplit(t, "^foo.md", "^foo.md", "")
+	trySplit(t, "^sub/test.md", "^sub/test.md", "")
+	trySplit(t, ".foo.md", ".foo.md", "")
+	trySplit(t, "test.md", "test.md", "")
+	trySplit(t, "./test.md", "./test.md", "")
+	trySplit(t, "../test.md", "../test.md", "")
+	trySplit(t, "/home/test.md", "/home/test.md", "")
 }
 
 func tryResolve(t *testing.T, resolver Resolver, input string, goodResolve string, shouldError bool) {