go-mod-clean/doRestore.go

63 lines
1.5 KiB
Go

package main
import (
"errors"
"os"
"path/filepath"
"go.wit.com/lib/gui/shell"
"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)
}
repo.RunVerboseOnError([]string{"rm", "-f", "go.mod", "go.sum"})
rver := repo.GetLastTag()
if rver == "" {
return errors.New("could not get master version")
}
goget := repo.GetGoPath() + "@" + rver
moddir := filepath.Join(homedir, "go/pkg/mod", repo.GetGoPath()+"@"+rver)
if shell.IsDir(moddir) {
// things are ok
} else {
return errors.New("must run go get " + goget)
}
modfile := filepath.Join(homedir, "go/pkg/mod", repo.GetGoPath()+"@"+rver, "go.mod")
if shell.Exists(modfile) {
// go.mod exists
} else {
log.Info(repo.GetGoPath(), "does not have file:", modfile)
// nothing to do. this repo does not have a go.mod file
return nil
}
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
}