gomod2nix/fetch/sum.go

34 lines
613 B
Go

package fetch
import (
"bytes"
"fmt"
"io/ioutil"
"strings"
)
func parseGoSum(file string) (map[string]string, error) {
// Read go.mod
data, err := ioutil.ReadFile(file)
if err != nil {
return nil, err
}
pkgs := make(map[string]string) // goPackagepath -> rev
for lineno, line := range bytes.Split(data, []byte("\n")) {
if len(line) == 0 {
continue
}
f := strings.Fields(string(line))
if len(f) != 3 {
return nil, fmt.Errorf("malformed go.sum:\n%s:%d: wrong number of fields %v", file, lineno, len(f))
}
pkgs[f[0]] = strings.TrimSuffix(f[1], "/go.mod")
}
return pkgs, nil
}