[general] better failure result handling and method to list files

in current directory

general/gochanges.go

@@ -2,6 +2,7 @@ package general
 
 import (
 	"bytes"
+	"io/ioutil"
 	"log"
 	"os/exec"
 	"path/filepath"
@@ -14,7 +15,9 @@ import (
 func RunCommand(command string, values ...string) (result string, errCode int) {
 	cmd := exec.Command(command, values...)
 	var out bytes.Buffer
+	var outErr bytes.Buffer
 	cmd.Stdout = &out
+	cmd.Stderr = &outErr
 
 	if err := cmd.Start(); err != nil {
 		log.Fatalf("cmd.Start: %v", err)
@@ -24,6 +27,7 @@ func RunCommand(command string, values ...string) (result string, errCode int) {
 		if exiterr, ok := err.(*exec.ExitError); ok {
 			if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {
 				errCode = status.ExitStatus()
+				result = outErr.String()
 				return result, errCode
 			}
 		} else {
@@ -54,6 +58,15 @@ func GetChangedGoFiles() (result []string) {
 	return result
 }
 
+// GetFilesFromDir returns a list of all files in the current directory
+func GetFilesList() (result []string) {
+	files, _ := ioutil.ReadDir("./")
+	for _, f := range files {
+		result = append(result, f.Name())
+	}
+	return result
+}
+
 // GetGitRoot returns the path with the .git directory
 func GetGitRoot() string {
 	gitDir, _ := RunCommand("git", "rev-parse", "--git-dir")