From 4d71a37916fa87884a8376e02bd4c2db0dde91c1 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Mon, 2 May 2022 16:14:48 +0200
Subject: [PATCH] wip: switch to io/fs

References: https://github.com/emersion/go-webdav/issues/40
---
 client.go | 19 ++++++++++---------
 webdav.go | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+), 9 deletions(-)

diff --git a/client.go b/client.go
index ad0a748..58c3ea4 100644
--- a/client.go
+++ b/client.go
@@ -3,6 +3,7 @@ package webdav
 import (
 	"fmt"
 	"io"
+	"io/fs"
 	"net/http"
 	"time"
 
@@ -74,13 +75,13 @@ var fileInfoPropfind = internal.NewPropNamePropfind(
 	internal.GetETagName,
 )
 
-func fileInfoFromResponse(resp *internal.Response) (*FileInfo, error) {
+func fileInfoFromResponse(resp *internal.Response) (*fileInfo, error) {
 	path, err := resp.Path()
 	if err != nil {
 		return nil, err
 	}
 
-	fi := &FileInfo{Path: path}
+	fi := FileInfo{Path: path}
 
 	var resType internal.ResourceType
 	if err := resp.DecodeProp(&resType); err != nil {
@@ -116,10 +117,10 @@ func fileInfoFromResponse(resp *internal.Response) (*FileInfo, error) {
 	}
 	fi.ModTime = time.Time(getMod.LastModified)
 
-	return fi, nil
+	return &fileInfo{fi}, nil
 }
 
-func (c *Client) Stat(name string) (*FileInfo, error) {
+func (c *Client) Stat(name string) (fs.FileInfo, error) {
 	resp, err := c.ic.PropfindFlat(name, fileInfoPropfind)
 	if err != nil {
 		return nil, err
@@ -141,24 +142,24 @@ func (c *Client) Open(name string) (io.ReadCloser, error) {
 	return resp.Body, nil
 }
 
-func (c *Client) Readdir(name string, recursive bool) ([]FileInfo, error) {
+func (c *Client) ReadDir(name string) ([]fs.DirEntry, error) {
 	depth := internal.DepthOne
-	if recursive {
+	/*if recursive {
 		depth = internal.DepthInfinity
-	}
+	}*/
 
 	ms, err := c.ic.Propfind(name, depth, fileInfoPropfind)
 	if err != nil {
 		return nil, err
 	}
 
-	l := make([]FileInfo, 0, len(ms.Responses))
+	l := make([]fs.DirEntry, 0, len(ms.Responses))
 	for _, resp := range ms.Responses {
 		fi, err := fileInfoFromResponse(&resp)
 		if err != nil {
 			return l, err
 		}
-		l = append(l, *fi)
+		l = append(l, fi)
 	}
 
 	return l, nil
diff --git a/webdav.go b/webdav.go
index 4dd369c..5188d74 100644
--- a/webdav.go
+++ b/webdav.go
@@ -4,6 +4,8 @@
 package webdav
 
 import (
+	"io/fs"
+	"path"
 	"time"
 )
 
@@ -15,3 +17,48 @@ type FileInfo struct {
 	MIMEType string
 	ETag     string
 }
+
+type fileInfo struct {
+	FileInfo
+}
+
+var (
+	_ fs.FileInfo = (*fileInfo)(nil)
+	_ fs.DirEntry = (*fileInfo)(nil)
+)
+
+func (fi *fileInfo) Name() string {
+	return path.Base(fi.Path)
+}
+
+func (fi *fileInfo) Size() int64 {
+	return fi.FileInfo.Size
+}
+
+func (fi *fileInfo) Mode() fs.FileMode {
+	var mode fs.FileMode
+	if fi.FileInfo.IsDir {
+		mode |= fs.ModeDir
+	}
+	return mode
+}
+
+func (fi *fileInfo) ModTime() time.Time {
+	return fi.FileInfo.ModTime
+}
+
+func (fi *fileInfo) IsDir() bool {
+	return fi.FileInfo.IsDir
+}
+
+func (fi *fileInfo) Sys() interface{} {
+	return nil
+}
+
+func (fi *fileInfo) Type() fs.FileMode {
+	return fi.Mode()
+}
+
+func (fi *fileInfo) Info() (fs.FileInfo, error) {
+	return fi, nil
+}