Fix default local cache location (#204)

Author: aledbf

cmd/build.go

@@ -211,9 +211,13 @@ func getBuildOpts(cmd *cobra.Command) ([]leeway.BuildOption, cache.LocalCache) {
 	} else {
 		localCacheLoc = os.Getenv(leeway.EnvvarCacheDir)
 		if localCacheLoc == "" {
-			localCacheLoc = filepath.Join(os.TempDir(), "cache")
+			localCacheLoc = filepath.Join(os.TempDir(), "leeway", "cache")
 		}
 	}
+	// Ensure cache directory exists with proper permissions
+	if err := os.MkdirAll(localCacheLoc, 0755); err != nil {
+		log.WithError(err).Fatal("failed to create cache directory")
+	}
 	log.WithField("location", localCacheLoc).Debug("set up local cache")
 	localCache, err := local.NewFilesystemCache(localCacheLoc)
 	if err != nil {

pkg/leeway/build.go

@@ -120,7 +120,12 @@ func newBuildContext(options buildOptions) (ctx *buildContext, err error) {
 
 	buildDir := os.Getenv(EnvvarBuildDir)
 	if buildDir == "" {
-		buildDir = filepath.Join(os.TempDir(), "build")
+		buildDir = filepath.Join(os.TempDir(), "leeway", "build")
+	}
+
+	// Ensure cache directory exists with proper permissions
+	if err := os.MkdirAll(buildDir, 0755); err != nil {
+		log.WithError(err).Fatal("failed to create build directory")
 	}
 
 	var buildLimit *semaphore.Weighted