feat: app cmd ls

See coop-cloud/organising#484

pkg/config/env.go

@@ -249,3 +249,39 @@ func CheckEnv(app App) ([]EnvVar, error) {
 
 	return envVars, nil
 }
+
+// ReadAbraShCmdNames reads the names of commands.
+func ReadAbraShCmdNames(abraSh string) ([]string, error) {
+	var cmdNames []string
+
+	file, err := os.Open(abraSh)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return cmdNames, nil
+		}
+		return cmdNames, err
+	}
+	defer file.Close()
+
+	cmdNameRegex, err := regexp.Compile(`(\w+)(\(\).*\{)`)
+	if err != nil {
+		return cmdNames, err
+	}
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		matches := cmdNameRegex.FindStringSubmatch(line)
+		if len(matches) > 0 {
+			cmdNames = append(cmdNames, matches[1])
+		}
+	}
+
+	if len(cmdNames) > 0 {
+		logrus.Debugf("read %s from %s", strings.Join(cmdNames, " "), abraSh)
+	} else {
+		logrus.Debugf("read 0 command names from %s", abraSh)
+	}
+
+	return cmdNames, nil
+}