Update vendor for all new features

vendor/github.com/rakyll/statik/fs/fs.go

@@ -0,0 +1,172 @@
+// Copyright 2014 Google Inc. 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 fs contains an HTTP file system that works with zip contents.
+package fs
+
+import (
+	"archive/zip"
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path"
+	"strings"
+	"time"
+)
+
+var zipData string
+
+// file holds unzipped read-only file contents and file metadata.
+type file struct {
+	os.FileInfo
+	data []byte
+	fs   *statikFS
+}
+
+type statikFS struct {
+	files map[string]file
+}
+
+// Register registers zip contents data, later used to initialize
+// the statik file system.
+func Register(data string) {
+	zipData = data
+}
+
+// New creates a new file system with the registered zip contents data.
+// It unzips all files and stores them in an in-memory map.
+func New() (http.FileSystem, error) {
+	if zipData == "" {
+		return nil, errors.New("statik/fs: no zip data registered")
+	}
+	zipReader, err := zip.NewReader(strings.NewReader(zipData), int64(len(zipData)))
+	if err != nil {
+		return nil, err
+	}
+	files := make(map[string]file, len(zipReader.File))
+	fs := &statikFS{files: files}
+	for _, zipFile := range zipReader.File {
+		fi := zipFile.FileInfo()
+		f := file{FileInfo: fi, fs: fs}
+		f.data, err = unzip(zipFile)
+		if err != nil {
+			return nil, fmt.Errorf("statik/fs: error unzipping file %q: %s", zipFile.Name, err)
+		}
+		files["/"+zipFile.Name] = f
+	}
+	for fn := range files {
+		dn := path.Dir(fn)
+		if _, ok := files[dn]; !ok {
+			files[dn] = file{FileInfo: dirInfo{dn}, fs: fs}
+		}
+	}
+	return fs, nil
+}
+
+var _ = os.FileInfo(dirInfo{})
+
+type dirInfo struct {
+	name string
+}
+
+func (di dirInfo) Name() string       { return di.name }
+func (di dirInfo) Size() int64        { return 0 }
+func (di dirInfo) Mode() os.FileMode  { return 0755 | os.ModeDir }
+func (di dirInfo) ModTime() time.Time { return time.Time{} }
+func (di dirInfo) IsDir() bool        { return true }
+func (di dirInfo) Sys() interface{}   { return nil }
+
+func unzip(zf *zip.File) ([]byte, error) {
+	rc, err := zf.Open()
+	if err != nil {
+		return nil, err
+	}
+	defer rc.Close()
+	return ioutil.ReadAll(rc)
+}
+
+// Open returns a file matching the given file name, or os.ErrNotExists if
+// no file matching the given file name is found in the archive.
+// If a directory is requested, Open returns the file named "index.html"
+// in the requested directory, if that file exists.
+func (fs *statikFS) Open(name string) (http.File, error) {
+	name = strings.Replace(name, "//", "/", -1)
+	if f, ok := fs.files[name]; ok {
+		return newHTTPFile(f), nil
+	}
+	return nil, os.ErrNotExist
+}
+
+func newHTTPFile(file file) *httpFile {
+	if file.IsDir() {
+		return &httpFile{file: file, isDir: true}
+	}
+	return &httpFile{file: file, reader: bytes.NewReader(file.data)}
+}
+
+// httpFile represents an HTTP file and acts as a bridge
+// between file and http.File.
+type httpFile struct {
+	file
+
+	reader *bytes.Reader
+	isDir  bool
+}
+
+// Read reads bytes into p, returns the number of read bytes.
+func (f *httpFile) Read(p []byte) (n int, err error) {
+	if f.reader == nil && f.isDir {
+		return 0, io.EOF
+	}
+	return f.reader.Read(p)
+}
+
+// Seek seeks to the offset.
+func (f *httpFile) Seek(offset int64, whence int) (ret int64, err error) {
+	return f.reader.Seek(offset, whence)
+}
+
+// Stat stats the file.
+func (f *httpFile) Stat() (os.FileInfo, error) {
+	return f, nil
+}
+
+// IsDir returns true if the file location represents a directory.
+func (f *httpFile) IsDir() bool {
+	return f.isDir
+}
+
+// Readdir returns an empty slice of files, directory
+// listing is disabled.
+func (f *httpFile) Readdir(count int) ([]os.FileInfo, error) {
+	var fis []os.FileInfo
+	if !f.isDir {
+		return fis, nil
+	}
+	prefix := f.Name()
+	for fn, f := range f.file.fs.files {
+		if strings.HasPrefix(fn, prefix) && len(fn) > len(prefix) {
+			fis = append(fis, f.FileInfo)
+		}
+	}
+	return fis, nil
+}
+
+func (f *httpFile) Close() error {
+	return nil
+}