mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-04 14:46:57 -05:00
60b31c8f01
* Fix the intermittent TestGPGGit failures Reattempt to open the listener if the port is busy with a delay up to a second Switch from generating a private key each time, just use a known good key
104 lines
2.9 KiB
Go
Vendored
104 lines
2.9 KiB
Go
Vendored
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package buildutil
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"fmt"
|
|
"go/build"
|
|
"io"
|
|
"io/ioutil"
|
|
"path/filepath"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
// OverlayContext overlays a build.Context with additional files from
|
|
// a map. Files in the map take precedence over other files.
|
|
//
|
|
// In addition to plain string comparison, two file names are
|
|
// considered equal if their base names match and their directory
|
|
// components point at the same directory on the file system. That is,
|
|
// symbolic links are followed for directories, but not files.
|
|
//
|
|
// A common use case for OverlayContext is to allow editors to pass in
|
|
// a set of unsaved, modified files.
|
|
//
|
|
// Currently, only the Context.OpenFile function will respect the
|
|
// overlay. This may change in the future.
|
|
func OverlayContext(orig *build.Context, overlay map[string][]byte) *build.Context {
|
|
// TODO(dominikh): Implement IsDir, HasSubdir and ReadDir
|
|
|
|
rc := func(data []byte) (io.ReadCloser, error) {
|
|
return ioutil.NopCloser(bytes.NewBuffer(data)), nil
|
|
}
|
|
|
|
copy := *orig // make a copy
|
|
ctxt := ©
|
|
ctxt.OpenFile = func(path string) (io.ReadCloser, error) {
|
|
// Fast path: names match exactly.
|
|
if content, ok := overlay[path]; ok {
|
|
return rc(content)
|
|
}
|
|
|
|
// Slow path: check for same file under a different
|
|
// alias, perhaps due to a symbolic link.
|
|
for filename, content := range overlay {
|
|
if sameFile(path, filename) {
|
|
return rc(content)
|
|
}
|
|
}
|
|
|
|
return OpenFile(orig, path)
|
|
}
|
|
return ctxt
|
|
}
|
|
|
|
// ParseOverlayArchive parses an archive containing Go files and their
|
|
// contents. The result is intended to be used with OverlayContext.
|
|
//
|
|
//
|
|
// Archive format
|
|
//
|
|
// The archive consists of a series of files. Each file consists of a
|
|
// name, a decimal file size and the file contents, separated by
|
|
// newlines. No newline follows after the file contents.
|
|
func ParseOverlayArchive(archive io.Reader) (map[string][]byte, error) {
|
|
overlay := make(map[string][]byte)
|
|
r := bufio.NewReader(archive)
|
|
for {
|
|
// Read file name.
|
|
filename, err := r.ReadString('\n')
|
|
if err != nil {
|
|
if err == io.EOF {
|
|
break // OK
|
|
}
|
|
return nil, fmt.Errorf("reading archive file name: %v", err)
|
|
}
|
|
filename = filepath.Clean(strings.TrimSpace(filename))
|
|
|
|
// Read file size.
|
|
sz, err := r.ReadString('\n')
|
|
if err != nil {
|
|
return nil, fmt.Errorf("reading size of archive file %s: %v", filename, err)
|
|
}
|
|
sz = strings.TrimSpace(sz)
|
|
size, err := strconv.ParseUint(sz, 10, 32)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("parsing size of archive file %s: %v", filename, err)
|
|
}
|
|
|
|
// Read file content.
|
|
content := make([]byte, size)
|
|
if _, err := io.ReadFull(r, content); err != nil {
|
|
return nil, fmt.Errorf("reading archive file %s: %v", filename, err)
|
|
}
|
|
overlay[filename] = content
|
|
}
|
|
|
|
return overlay, nil
|
|
}
|