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package testgit
import (
"fmt"
"strings"
"testing"
"lindenii.org/go/furgit/object/id"
)
// RevParse resolves one revision spec to an object ID.
func (repo *Repo) RevParse(tb testing.TB, spec string) (id.ObjectID, error) {
tb.Helper()
stdout, err := repo.run(tb, nil, "git", "rev-parse", "--verify", "--end-of-options", spec)
if err != nil {
return id.ObjectID{}, fmt.Errorf("rev-parse %q: %w", spec, err)
}
objectID, err := repo.objectFormat.FromString(strings.TrimSuffix(string(stdout), "\n"))
if err != nil {
return id.ObjectID{}, fmt.Errorf("parse git rev-parse output %q: %w", string(stdout), err)
}
return objectID, nil
}
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