github.com/icyphox/x@v0.0.355-0.20220311094250-029bd783e8b8/modx/version.go (about)

     1  package modx
     2  
     3  import (
     4  	"github.com/pkg/errors"
     5  	"golang.org/x/mod/modfile"
     6  )
     7  
     8  // FindVersion returns the version for a module given the contents of a go.mod file.
     9  func FindVersion(gomod []byte, module string) (string, error) {
    10  	m, err := modfile.Parse("go.mod", gomod, nil)
    11  	if err != nil {
    12  		return "", err
    13  	}
    14  
    15  	for _, r := range m.Require {
    16  		if r.Mod.Path == module {
    17  			return r.Mod.Version, nil
    18  		}
    19  	}
    20  
    21  	return "", errors.Errorf("no go.mod entry found for: %s", module)
    22  }
    23  
    24  // MustFindVersion returns the version for a module given the contents of a go.mod file or panics.
    25  func MustFindVersion(gomod []byte, module string) string {
    26  	v, err := FindVersion(gomod, module)
    27  	if err != nil {
    28  		panic(err)
    29  	}
    30  	return v
    31  }