Use bufio.ReadString to read user input.

exercism.go

@@ -1,10 +1,12 @@
 package main
 
 import (
+	"bufio"
 	"fmt"
 	"github.com/exercism/cli/configuration"
 	"os"
 	"path/filepath"
+	"strings"
 )
 
 func logout(path string) {
@@ -21,32 +23,39 @@ func absolutePath(path string) (string, error) {
 
 func askForConfigInfo() (c configuration.Config) {
 	var un, key, dir string
+	delim := "\r\n"
+
+	bio := bufio.NewReader(os.Stdin)
 
 	currentDir, err := os.Getwd()
 	if err != nil {
 		panic(err)
 	}
 
 	fmt.Print("Your GitHub username: ")
-	_, err = fmt.Scanln(&un)
+	un, err = bio.ReadString('\n')
 	if err != nil {
 		panic(err)
 	}
 
 	fmt.Print("Your exercism.io API key: ")
-	_, err = fmt.Scanln(&key)
+	key, err = bio.ReadString('\n')
 	if err != nil {
 		panic(err)
 	}
 
 	fmt.Println("What is your exercism exercises project path?")
 	fmt.Printf("Press Enter to select the default (%s):\n", currentDir)
 	fmt.Print("> ")
-	_, err = fmt.Scanln(&dir)
+	dir, err = bio.ReadString('\n')
 	if err != nil && err.Error() != "unexpected newline" {
 		panic(err)
 	}
 
+	key = strings.TrimRight(key, delim)
+	un = strings.TrimRight(un, delim)
+	dir = strings.TrimRight(dir, delim)
+
 	if dir == "" {
 		dir = currentDir
 	}

exercism_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"github.com/exercism/cli/configuration"
 	"github.com/stretchr/testify/assert"
 	"io/ioutil"
@@ -28,3 +29,35 @@ func TestLogoutDeletesConfigFile(t *testing.T) {
 
 	asserFileDoesNotExist(t, configuration.Filename(tmpDir))
 }
+
+func TestAskForConfigInfoAllowsSpaces(t *testing.T) {
+	oldStdin := os.Stdin
+	dirName := "dirname with spaces"
+	userName := "TestUsername"
+	apiKey := "abc123"
+
+	fakeStdin, err := ioutil.TempFile("", "stdin_mock")
+	assert.NoError(t, err)
+
+	fakeStdin.WriteString(fmt.Sprintf("%s\r\n%s\r\n%s\r\n", userName, apiKey, dirName))
+	assert.NoError(t, err)
+
+	file, err := os.Open(fakeStdin.Name())
+	defer file.Close()
+
+	os.Stdin = file
+
+	c := askForConfigInfo()
+	os.Stdin = oldStdin
+	absoluteDirName, _ := absolutePath(dirName)
+	_, err = os.Stat(absoluteDirName)
+	if err != nil {
+		t.Errorf("Excercism directory [%s] was not created.", absoluteDirName)
+	}
+	os.Remove(absoluteDirName)
+	os.Remove(fakeStdin.Name())
+
+	assert.Equal(t, c.ExercismDirectory, absoluteDirName)
+	assert.Equal(t, c.GithubUsername, userName)
+	assert.Equal(t, c.ApiKey, apiKey)
+}