mirror of
https://github.com/golang/go
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47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package fake
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import (
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"fmt"
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"golang.org/x/tools/internal/proxydir"
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)
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// Proxy is a file-based module proxy.
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type Proxy struct {
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proxydir string
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}
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// NewProxy creates a new proxy file tree using the txtar-encoded content.
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func NewProxy(tmpdir, txt string) (*Proxy, error) {
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files := unpackTxt(txt)
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type moduleVersion struct {
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modulePath, version string
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}
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// Transform into the format expected by the proxydir package.
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filesByModule := make(map[moduleVersion]map[string][]byte)
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for name, data := range files {
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modulePath, version, suffix := splitModuleVersionPath(name)
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mv := moduleVersion{modulePath, version}
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if _, ok := filesByModule[mv]; !ok {
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filesByModule[mv] = make(map[string][]byte)
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}
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filesByModule[mv][suffix] = data
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}
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for mv, files := range filesByModule {
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if err := proxydir.WriteModuleVersion(tmpdir, mv.modulePath, mv.version, files); err != nil {
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return nil, fmt.Errorf("error writing %s@%s: %v", mv.modulePath, mv.version, err)
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}
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}
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return &Proxy{proxydir: tmpdir}, nil
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}
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// GOPROXY returns the GOPROXY environment variable value for this proxy
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// directory.
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func (p *Proxy) GOPROXY() string {
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return proxydir.ToURL(p.proxydir)
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}
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