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// Copyright 2018 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.

// go mod graph

package modcmd

import (
	"bufio"
	"context"
	"os"

"cmd/go/internal/base"
	"cmd/go/internal/cfg"
	"cmd/go/internal/gover"
	"cmd/go/internal/modload"
	"cmd/go/internal/toolchain"

"golang.org/x/mod/module"
)

var cmdGraph = &base.Command{
	UsageLine: "go mod graph [-go=version] [-x]",
	Short:     "print module requirement graph",
	Long: `
Graph prints the module requirement graph (with replacements applied)
in text form. Each line in the output has two space-separated fields: a module
and one of its requirements. Each module is identified as a string of the form
path@version, except for the main module, which has no @version suffix.

The -go flag causes graph to report the module graph as loaded by the
given Go version, instead of the version indicated by the 'go' directive
in the go.mod file.

The -x flag causes graph to print the commands graph executes.

See https://golang.org/ref/mod#go-mod-graph for more about 'go mod graph'.
	`,
	Run: runGraph,
}

var (
	graphGo goVersionFlag
)

func init() {
	cmdGraph.Flag.Var(&graphGo, "go", "")
	cmdGraph.Flag.BoolVar(&cfg.BuildX, "x", false, "")
	base.AddChdirFlag(&cmdGraph.Flag)
	base.AddModCommonFlags(&cmdGraph.Flag)
}

func runGraph(ctx context.Context, cmd *base.Command, args []string) {
	modload.InitWorkfile()

if len(args) > 0 {
		base.Fatalf("go: 'go mod graph' accepts no arguments")
	}
	modload.ForceUseModules = true
	modload.RootMode = modload.NeedRoot

goVersion := graphGo.String()
	if goVersion != "" && gover.Compare(gover.Local(), goVersion) < 0 {
		toolchain.SwitchOrFatal(ctx, &gover.TooNewError{
			What:      "-go flag",
			GoVersion: goVersion,
		})
	}

mg, err := modload.LoadModGraph(ctx, goVersion)
	if err != nil {
		base.Fatal(err)
	}

w := bufio.NewWriter(os.Stdout)
	defer w.Flush()

format := func(m module.Version) {
		w.WriteString(m.Path)
		if m.Version != "" {
			w.WriteString("@")
			w.WriteString(m.Version)
		}
	}

mg.WalkBreadthFirst(func(m module.Version) {
		reqs, _ := mg.RequiredBy(m)
		for _, r := range reqs {
			format(m)
			w.WriteByte(' ')
			format(r)
			w.WriteByte('\n')
		}
	})
}

Batal

⬅ internal 9 item

Nama	Tipe	Ukuran	Diubah	Aksi
🔵download.go	go	13.5 KB	2024-02-02 18:09	✏️ 👁️
🔵edit.go	go	15.9 KB	2024-02-02 18:09	✏️ 👁️
🔵graph.go	go	2.2 KB	2024-02-02 18:09	✏️ 👁️
🔵init.go	go	1.3 KB	2024-02-02 18:09	✏️ 👁️
🔵mod.go	go	807 B	2024-02-02 18:09	✏️ 👁️
🔵tidy.go	go	4.6 KB	2024-02-02 18:09	✏️ 👁️
🔵vendor.go	go	13.6 KB	2024-02-02 18:09	✏️ 👁️
🔵verify.go	go	3.6 KB	2024-02-02 18:09	✏️ 👁️
🔵why.go	go	3.8 KB	2024-02-02 18:09	✏️ 👁️

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