ref: ec9dcf304849ded11cea70ab9ad46e0a0a4615b2
dir: /hugofs/walk_test.go/
// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package hugofs
import (
"fmt"
"os"
"path/filepath"
"runtime"
"strings"
"testing"
"github.com/gohugoio/hugo/common/hugo"
"github.com/pkg/errors"
"github.com/gohugoio/hugo/htesting"
"github.com/spf13/afero"
qt "github.com/frankban/quicktest"
)
func TestWalk(t *testing.T) {
c := qt.New(t)
fs := NewBaseFileDecorator(afero.NewMemMapFs())
afero.WriteFile(fs, "b.txt", []byte("content"), 0777)
afero.WriteFile(fs, "c.txt", []byte("content"), 0777)
afero.WriteFile(fs, "a.txt", []byte("content"), 0777)
names, err := collectFilenames(fs, "", "")
c.Assert(err, qt.IsNil)
c.Assert(names, qt.DeepEquals, []string{"a.txt", "b.txt", "c.txt"})
}
func TestWalkRootMappingFs(t *testing.T) {
c := qt.New(t)
fs := NewBaseFileDecorator(afero.NewMemMapFs())
testfile := "test.txt"
c.Assert(afero.WriteFile(fs, filepath.Join("a/b", testfile), []byte("some content"), 0755), qt.IsNil)
c.Assert(afero.WriteFile(fs, filepath.Join("c/d", testfile), []byte("some content"), 0755), qt.IsNil)
c.Assert(afero.WriteFile(fs, filepath.Join("e/f", testfile), []byte("some content"), 0755), qt.IsNil)
rm := []RootMapping{
RootMapping{
From: "static/b",
To: "e/f",
},
RootMapping{
From: "static/a",
To: "c/d",
},
RootMapping{
From: "static/c",
To: "a/b",
},
}
rfs, err := NewRootMappingFs(fs, rm...)
c.Assert(err, qt.IsNil)
bfs := afero.NewBasePathFs(rfs, "static")
names, err := collectFilenames(bfs, "", "")
c.Assert(err, qt.IsNil)
c.Assert(names, qt.DeepEquals, []string{"a/test.txt", "b/test.txt", "c/test.txt"})
}
func skipSymlink() bool {
return runtime.GOOS == "windows" && os.Getenv("CI") == ""
}
func TestWalkSymbolicLink(t *testing.T) {
if skipSymlink() {
t.Skip("Skip; os.Symlink needs administrator rights on Windows")
}
c := qt.New(t)
workDir, clean, err := htesting.CreateTempDir(Os, "hugo-walk-sym")
c.Assert(err, qt.IsNil)
defer clean()
wd, _ := os.Getwd()
defer func() {
os.Chdir(wd)
}()
fs := NewBaseFileDecorator(Os)
blogDir := filepath.Join(workDir, "blog")
docsDir := filepath.Join(workDir, "docs")
blogReal := filepath.Join(blogDir, "real")
blogRealSub := filepath.Join(blogReal, "sub")
c.Assert(os.MkdirAll(blogRealSub, 0777), qt.IsNil)
c.Assert(os.MkdirAll(docsDir, 0777), qt.IsNil)
afero.WriteFile(fs, filepath.Join(blogRealSub, "a.txt"), []byte("content"), 0777)
afero.WriteFile(fs, filepath.Join(docsDir, "b.txt"), []byte("content"), 0777)
os.Chdir(blogDir)
c.Assert(os.Symlink("real", "symlinked"), qt.IsNil)
os.Chdir(blogReal)
c.Assert(os.Symlink("../real", "cyclic"), qt.IsNil)
os.Chdir(docsDir)
c.Assert(os.Symlink("../blog/real/cyclic", "docsreal"), qt.IsNil)
t.Run("OS Fs", func(t *testing.T) {
c := qt.New(t)
names, err := collectFilenames(fs, workDir, workDir)
c.Assert(err, qt.IsNil)
c.Assert(names, qt.DeepEquals, []string{"blog/real/sub/a.txt", "docs/b.txt"})
})
t.Run("BasePath Fs", func(t *testing.T) {
if hugo.GoMinorVersion() < 12 {
// https://github.com/golang/go/issues/30520
// This is fixed in Go 1.13 and in the latest Go 1.12
t.Skip("skip this for Go <= 1.11 due to a bug in Go's stdlib")
}
c := qt.New(t)
docsFs := afero.NewBasePathFs(fs, docsDir)
names, err := collectFilenames(docsFs, "", "")
c.Assert(err, qt.IsNil)
// Note: the docsreal folder is considered cyclic when walking from the root, but this works.
c.Assert(names, qt.DeepEquals, []string{"b.txt", "docsreal/sub/a.txt"})
})
}
func collectFilenames(fs afero.Fs, base, root string) ([]string, error) {
var names []string
walkFn := func(path string, info FileMetaInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
filename := info.Meta().Path()
filename = filepath.ToSlash(filename)
names = append(names, filename)
return nil
}
w := NewWalkway(WalkwayConfig{Fs: fs, BasePath: base, Root: root, WalkFn: walkFn})
err := w.Walk()
return names, err
}
func collectFileinfos(fs afero.Fs, base, root string) ([]FileMetaInfo, error) {
var fis []FileMetaInfo
walkFn := func(path string, info FileMetaInfo, err error) error {
if err != nil {
return err
}
fis = append(fis, info)
return nil
}
w := NewWalkway(WalkwayConfig{Fs: fs, BasePath: base, Root: root, WalkFn: walkFn})
err := w.Walk()
return fis, err
}
func BenchmarkWalk(b *testing.B) {
c := qt.New(b)
fs := NewBaseFileDecorator(afero.NewMemMapFs())
writeFiles := func(dir string, numfiles int) {
for i := 0; i < numfiles; i++ {
filename := filepath.Join(dir, fmt.Sprintf("file%d.txt", i))
c.Assert(afero.WriteFile(fs, filename, []byte("content"), 0777), qt.IsNil)
}
}
const numFilesPerDir = 20
writeFiles("root", numFilesPerDir)
writeFiles("root/l1_1", numFilesPerDir)
writeFiles("root/l1_1/l2_1", numFilesPerDir)
writeFiles("root/l1_1/l2_2", numFilesPerDir)
writeFiles("root/l1_2", numFilesPerDir)
writeFiles("root/l1_2/l2_1", numFilesPerDir)
writeFiles("root/l1_3", numFilesPerDir)
walkFn := func(path string, info FileMetaInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
filename := info.Meta().Filename()
if !strings.HasPrefix(filename, "root") {
return errors.New(filename)
}
return nil
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
w := NewWalkway(WalkwayConfig{Fs: fs, Root: "root", WalkFn: walkFn})
if err := w.Walk(); err != nil {
b.Fatal(err)
}
}
}