83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
// Copyright 2018 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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// +build go1.11
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package packagestest
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"path"
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"path/filepath"
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)
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// Modules is the exporter that produces module layouts.
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// Each "repository" is put in it's own module, and the module file generated
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// will have replace directives for all other modules.
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// Given the two files
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// golang.org/repoa#a/a.go
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// golang.org/repob#b/b.go
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// You would get the directory layout
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// /sometemporarydirectory
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// ├── repoa
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// │ ├── a
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// │ │ └── a.go
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// │ └── go.mod
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// └── repob
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// ├── b
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// │ └── b.go
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// └── go.mod
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// and the working directory would be
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// /sometemporarydirectory/repoa
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var Modules = modules{}
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func init() {
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All = append(All, Modules)
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}
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type modules struct{}
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func (modules) Name() string {
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return "Modules"
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}
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func (modules) Filename(exported *Exported, module, fragment string) string {
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return filepath.Join(moduleDir(exported, module), fragment)
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}
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func (modules) Finalize(exported *Exported) error {
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exported.Config.Env = append(exported.Config.Env, "GO111MODULE=on")
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for module, files := range exported.written {
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dir := gopathDir(exported, module)
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if module == gorootModule {
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exported.Config.Env = append(exported.Config.Env, "GOROOT="+dir)
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continue
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}
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buf := &bytes.Buffer{}
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fmt.Fprintf(buf, "module %v\n", module)
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// add replace directives to the paths of all other modules written
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for other := range exported.written {
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if other == gorootModule || other == module {
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continue
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}
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fmt.Fprintf(buf, "replace %v => %v\n", other, moduleDir(exported, other))
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}
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modfile := filepath.Join(dir, "go.mod")
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if err := ioutil.WriteFile(modfile, buf.Bytes(), 0644); err != nil {
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return err
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}
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files["go.mod"] = modfile
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if module == exported.primary {
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exported.Config.Dir = dir
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}
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}
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return nil
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}
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func moduleDir(exported *Exported, module string) string {
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return filepath.Join(exported.temp, path.Base(module))
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}
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