Implemented directory walk

build/Build.go

@@ -5,9 +5,12 @@ import (
 	"bytes"
 	"os"
 	"path/filepath"
+	"strings"
 
-	"git.akyoto.dev/cli/q/build/elf"
-	"git.akyoto.dev/cli/q/cli/log"
+	"git.akyoto.dev/cli/q/directory"
+	"git.akyoto.dev/cli/q/elf"
+	"git.akyoto.dev/cli/q/errors"
+	"git.akyoto.dev/cli/q/log"
 )
 
 // Build describes a compiler build.
@@ -43,29 +46,25 @@ func (build *Build) Run() error {
 	return nil
 }
 
-// Executable returns the path to the executable.
-func (build *Build) Executable() string {
-	return filepath.Join(build.Directory, build.Name)
-}
-
 // Compile compiles all the functions.
 func (build *Build) Compile() error {
-	file, err := os.Open(build.Directory)
+	stat, err := os.Stat(build.Directory)
 
 	if err != nil {
 		return err
 	}
 
-	defer file.Close()
-	files, err := file.Readdirnames(0)
-
-	if err != nil {
-		return err
+	if !stat.IsDir() {
+		return &errors.InvalidDirectory{Path: build.Directory}
 	}
 
-	for _, name := range files {
-		log.Info.Println(name)
-	}
+	directory.Walk(build.Directory, func(file string) {
+		if !strings.HasSuffix(file, ".q") {
+			return
+		}
+
+		log.Info.Println(file)
+	})
 
 	build.Code.Write([]byte{
 		0xb8, 0x01, 0x00, 0x00, 0x00, // mov eax, 1
@@ -83,6 +82,11 @@ func (build *Build) Compile() error {
 	return nil
 }
 
+// Executable returns the path to the executable.
+func (build *Build) Executable() string {
+	return filepath.Join(build.Directory, build.Name)
+}
+
 // writeToDisk writes the executable file to disk.
 func writeToDisk(filePath string, code []byte, data []byte) error {
 	file, err := os.Create(filePath)