snapshot of https://github.com/cortezaproject/corteza.git (2024.9.x, 2026-09-18; blobs > 131072B omitted)

server/assets/embed.go

@@ -0,0 +1,93 @@
+package assets
+
+import (
+	"embed"
+	"fmt"
+	"io/fs"
+	"os"
+	"path"
+
+	"go.uber.org/zap"
+)
+
+var (
+	//go:embed src/*
+	ff embed.FS
+)
+
+// Files return files from assets path or falls back to embedded files
+//
+// @todo try to find a way to merge this with auth/assets
+func Files(log *zap.Logger, aPath string) (files fs.FS) {
+	var err error
+	if len(aPath) > 0 {
+		if files, err = fromPath(aPath); err != nil {
+			// log warning but fallback to embedded assets
+			log.Warn(
+				fmt.Sprintf("failed to use custom assets path (HTTP_SERVER_ASSETS_PATH=%s)", aPath),
+				zap.Error(err),
+			)
+		}
+	}
+
+	if files == nil {
+		aPath = "embedded"
+		files, err = fs.Sub(ff, "src")
+		if err != nil {
+			// something is seriously wrong, we might as well panic
+			panic(err)
+		}
+	}
+
+	return
+}
+
+func fromPath(path string) (assets fs.FS, err error) {
+	// at least icon file should exist in the custom asset path
+	// otherwise we default to embedded files
+	const check = "icon.svg"
+
+	var (
+		fi os.FileInfo
+	)
+
+	if fi, err = os.Stat(path); err != nil {
+		return
+
+	}
+
+	if !fi.IsDir() {
+		return nil, fmt.Errorf("expecting directory")
+	}
+
+	assets = os.DirFS(path)
+	if _, err = assets.Open(check); err != nil {
+		return nil, err
+	}
+
+	return
+}
+
+func DirEntries(dir string) (fileNames, subDirs []string, err error) {
+	dirEntries, err := fs.ReadDir(ff, path.Join("src", dir))
+	if err != nil {
+		return nil, nil, err
+	}
+
+	for _, dirEntry := range dirEntries {
+		fileInfo, err := dirEntry.Info()
+		if err != nil {
+			return nil, nil, err
+		}
+
+		// if the entry is a directory skip it
+		if fileInfo.IsDir() {
+			subDirs = append(subDirs, dirEntry.Name())
+			continue
+		}
+
+		fileNames = append(fileNames, dirEntry.Name())
+	}
+
+	return fileNames, subDirs, err
+}