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path: root/restore.go
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package main

import (
	"errors"
	"os"
	"path/filepath"

	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/log"
)

func restoreFromGoPkg(repo *gitpb.Repo) error {
	homedir, err := os.UserHomeDir()
	if err != nil {
		badExit(nil, err)
	}
	rver := repo.GetMasterVersion()
	if rver == "" {
		return errors.New("could not get master version")
	}
	modfile := filepath.Join(homedir, "go/pkg/mod", repo.GetGoPath()+"@"+rver, "go.mod")
	log.Info("mod path should be", modfile)
	data, err := os.ReadFile(modfile)
	if err != nil {
		return err
	}
	modf, err := os.OpenFile("go.mod", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
	if err != nil {
		return err
	}
	defer modf.Close()
	modf.Write(data)

	modfile = filepath.Join(homedir, "go/pkg/mod", repo.GetGoPath()+"@"+rver, "go.sum")
	log.Info("mod path should be", modfile)
	data, err = os.ReadFile(modfile)
	if err == nil {
		sumf, _ := os.OpenFile("go.sum", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
		defer sumf.Close()
		sumf.Write(data)
	}

	// try go.sum, but no error checking since it might not be there
	return nil
}