rename Copy => CopyAll, update docs

README.md

@@ -1,21 +1,49 @@
-# vfscopy
+# [vfscopy](https://git.rootprojects.org/root/vfscopy)
 
-Copy a Virtual FileSystem, such as
+Recursively copy a Virtual FileSystem, such as
 [http.FileSystem](https://golang.org/pkg/net/http/#FileSystem),
-recursively to a native file system destination.
+to a native file system destination.
 
 Works with any file system that implements http.FileSystem,
-such as `vfsgen`, `fileb0x`, `gobindata`.
+including `vfsgen`, `fileb0x`, `gobindata` and most others.
+
+## Example: native file system (os)
 
 ```go
 httpfs := http.Dir("/tmp/public/")
 vfs := vfscopy.NewVFS(httpfs)
 
-if err := Copy(vfs, ".", "/tmp/dst/"); nil != err {
+if err := vfscopy.CopyAll(vfs, ".", "/tmp/dst/"); nil != err {
     fmt.Fprintf(os.Stderr, "couldn't copy vfs: %v\n", err)
 }
 ```
 
+## Example: vfsgen
+
+**Note**: `vfsgen` does not support symlinks or file permissions.
+
+```go
+package main
+
+import (
+    "fmt"
+
+    "git.rootprojects.org/root/vfscopy"
+
+    // vfsgen-generated file system
+    "git.example.com/org/project/assets"
+)
+
+func main() {
+    vfs := vfscopy.NewVFS(assets.Assets)
+
+    if err := vfscopy.CopyAll(vfs, ".", "/tmp/dst/"); nil != err {
+        fmt.Fprintf(os.Stderr, "couldn't copy vfs: %v\n", err)
+    }
+    fmt.Println("Done.")
+}
+```
+
 ## Test
 
 ```bash

copy.go

@@ -13,8 +13,8 @@ const (
 	tmpPermissionForDirectory = os.FileMode(0755)
 )
 
-// Copy copies src to dest, doesn't matter if src is a directory or a file.
-func Copy(vfs FileSystem, src, dest string, opt ...Options) error {
+// CopyAll copies src to dest, doesn't matter if src is a directory or a file.
+func CopyAll(vfs FileSystem, src, dest string, opt ...Options) error {
 	// FYI: os.Open does a proper lstat
 	f, err := vfs.Open(src)
 	if err != nil {

copy_test.go

@@ -26,7 +26,7 @@ func TestNativeRecursiveCopy(t *testing.T) {
 			_ = os.RemoveAll(tmpDir)
 		}()
 
-		if err := Copy(vfs, ".", tmpDir, opts); nil != err {
+		if err := CopyAll(vfs, ".", tmpDir, opts); nil != err {
 			t.Errorf("error: %v", err)
 			return
 		}
@@ -48,7 +48,7 @@ func TestVFSRecursiveCopy(t *testing.T) {
 			_ = os.RemoveAll(tmpDir)
 		}()
 
-		if err := Copy(vfs, ".", tmpDir, opts); nil != err {
+		if err := CopyAll(vfs, ".", tmpDir, opts); nil != err {
 			t.Errorf("copy error: %v", err)
 			return
 		}