| // Copyright 2020 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 fake |
| |
| import ( |
| "fmt" |
| |
| "golang.org/x/tools/internal/proxydir" |
| ) |
| |
| // Proxy is a file-based module proxy. |
| type Proxy struct { |
| proxydir string |
| } |
| |
| // NewProxy creates a new proxy file tree using the txtar-encoded content. |
| func NewProxy(tmpdir, txt string) (*Proxy, error) { |
| files := unpackTxt(txt) |
| type moduleVersion struct { |
| modulePath, version string |
| } |
| // Transform into the format expected by the proxydir package. |
| filesByModule := make(map[moduleVersion]map[string][]byte) |
| for name, data := range files { |
| modulePath, version, suffix := splitModuleVersionPath(name) |
| mv := moduleVersion{modulePath, version} |
| if _, ok := filesByModule[mv]; !ok { |
| filesByModule[mv] = make(map[string][]byte) |
| } |
| filesByModule[mv][suffix] = data |
| } |
| for mv, files := range filesByModule { |
| if err := proxydir.WriteModuleVersion(tmpdir, mv.modulePath, mv.version, files); err != nil { |
| return nil, fmt.Errorf("error writing %s@%s: %v", mv.modulePath, mv.version, err) |
| } |
| } |
| return &Proxy{proxydir: tmpdir}, nil |
| } |
| |
| // GOPROXY returns the GOPROXY environment variable value for this proxy |
| // directory. |
| func (p *Proxy) GOPROXY() string { |
| return proxydir.ToURL(p.proxydir) |
| } |