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package testgit
import (
"fmt"
"io"
"strings"
"testing"
"lindenii.org/go/furgit/object/id"
"lindenii.org/go/furgit/object/typ"
)
// HashObject hashes and writes an object,
// and returns its object ID.
func (repo *Repo) HashObject(tb testing.TB, ty typ.Type, body io.Reader) (id.ObjectID, error) {
tb.Helper()
stdout, err := repo.Run(tb, body, "git", "hash-object", "-t", ty.Name(), "-w", "--stdin", "--literally")
if err != nil {
return id.ObjectID{}, fmt.Errorf("hash-object: %w", err)
}
objectID, err := repo.objectFormat.FromString(strings.TrimSuffix(string(stdout), "\n"))
if err != nil {
return id.ObjectID{}, fmt.Errorf("parse git hash-object output %q: %w", string(stdout), err)
}
return objectID, nil
}
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