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package vfsutil_test
import (
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"os"
"github.com/shurcooL/httpfs/vfsutil"
"golang.org/x/tools/godoc/vfs/httpfs"
"golang.org/x/tools/godoc/vfs/mapfs"
)
func ExampleWalk() {
var fs http.FileSystem = httpfs.New(mapfs.New(map[string]string{
"zzz-last-file.txt": "It should be visited last.",
"a-file.txt": "It has stuff.",
"another-file.txt": "Also stuff.",
"folderA/entry-A.txt": "Alpha.",
"folderA/entry-B.txt": "Beta.",
}))
walkFn := func(path string, fi os.FileInfo, err error) error {
if err != nil {
log.Printf("can't stat file %s: %v\n", path, err)
return nil
}
fmt.Println(path)
return nil
}
err := vfsutil.Walk(fs, "/", walkFn)
if err != nil {
panic(err)
}
// Output:
// /
// /a-file.txt
// /another-file.txt
// /folderA
// /folderA/entry-A.txt
// /folderA/entry-B.txt
// /zzz-last-file.txt
}
func ExampleWalkFiles() {
var fs http.FileSystem = httpfs.New(mapfs.New(map[string]string{
"zzz-last-file.txt": "It should be visited last.",
"a-file.txt": "It has stuff.",
"another-file.txt": "Also stuff.",
"folderA/entry-A.txt": "Alpha.",
"folderA/entry-B.txt": "Beta.",
}))
walkFn := func(path string, fi os.FileInfo, r io.ReadSeeker, err error) error {
if err != nil {
log.Printf("can't stat file %s: %v\n", path, err)
return nil
}
fmt.Println(path)
if !fi.IsDir() {
b, err := ioutil.ReadAll(r)
if err != nil {
log.Printf("can't read file %s: %v\n", path, err)
return nil
}
fmt.Printf("%q\n", b)
}
return nil
}
err := vfsutil.WalkFiles(fs, "/", walkFn)
if err != nil {
panic(err)
}
// Output:
// /
// /a-file.txt
// "It has stuff."
// /another-file.txt
// "Also stuff."
// /folderA
// /folderA/entry-A.txt
// "Alpha."
// /folderA/entry-B.txt
// "Beta."
// /zzz-last-file.txt
// "It should be visited last."
}
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