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package testgit
import (
"io"
"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 {
tb.Helper()
cmd := repo.Command(tb, "git", "hash-object", "-t", ty.Name(), "-w", "--stdin", "--literally")
hex, err := cmd.CombinedOutput()
if err != nil {
tb.Fatalf("hash-object: %v", hex)
}
id, err := id.FromHex(repo.objectFormat, string(hex))
if err != nil {
tb.Fatalf("parse git hash-object output %q: %v", hex, err)
}
return id
}
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