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package testgit
import (
"bytes"
"fmt"
"strings"
"testing"
"lindenii.org/go/furgit/object/id"
"lindenii.org/go/furgit/object/typ"
)
// MkTreeEntry is one entry of a tree built by [Repo.MkTree].
type MkTreeEntry struct {
Mode string
Type typ.Type
OID id.ObjectID
Name string
}
// MkTree builds a tree object from entries and returns its object ID.
func (repo *Repo) MkTree(tb testing.TB, entries []MkTreeEntry) (id.ObjectID, error) {
tb.Helper()
var stdin bytes.Buffer
for _, entry := range entries {
fmt.Fprintf(&stdin, "%s %s %s\t%s\n", entry.Mode, entry.Type.Name(), entry.OID.String(), entry.Name)
}
stdout, err := repo.Run(tb, &stdin, "git", "mktree")
if err != nil {
return id.ObjectID{}, fmt.Errorf("mktree: %w", err)
}
treeID, err := repo.objectFormat.FromString(strings.TrimSuffix(string(stdout), "\n"))
if err != nil {
return id.ObjectID{}, fmt.Errorf("parse git mktree output %q: %w", string(stdout), err)
}
return treeID, nil
}
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