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// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
package git2c
import (
"encoding/hex"
"fmt"
)
type TreeEntryRaw struct {
Mode uint64
Name string
OID string // hex
}
func (c *Client) TreeListByOID(repoPath, treeHex string) ([]TreeEntryRaw, error) {
if err := c.writer.WriteData([]byte(repoPath)); err != nil {
return nil, fmt.Errorf("sending repo path failed: %w", err)
}
if err := c.writer.WriteUint(9); err != nil {
return nil, fmt.Errorf("sending command failed: %w", err)
}
if err := c.writer.WriteData([]byte(treeHex)); err != nil {
return nil, fmt.Errorf("sending tree oid failed: %w", err)
}
status, err := c.reader.ReadUint()
if err != nil {
return nil, fmt.Errorf("reading status failed: %w", err)
}
if status != 0 {
return nil, Perror(status)
}
count, err := c.reader.ReadUint()
if err != nil {
return nil, fmt.Errorf("reading count failed: %w", err)
}
entries := make([]TreeEntryRaw, 0, count)
for range count {
mode, err := c.reader.ReadUint()
if err != nil {
return nil, fmt.Errorf("reading mode failed: %w", err)
}
name, err := c.reader.ReadData()
if err != nil {
return nil, fmt.Errorf("reading name failed: %w", err)
}
id, err := c.reader.ReadData()
if err != nil {
return nil, fmt.Errorf("reading oid failed: %w", err)
}
entries = append(entries, TreeEntryRaw{Mode: mode, Name: string(name), OID: hex.EncodeToString(id)})
}
return entries, nil
}
func (c *Client) WriteTree(repoPath string, entries []TreeEntryRaw) (string, error) {
if err := c.writer.WriteData([]byte(repoPath)); err != nil {
return "", fmt.Errorf("sending repo path failed: %w", err)
}
if err := c.writer.WriteUint(10); err != nil {
return "", fmt.Errorf("sending command failed: %w", err)
}
if err := c.writer.WriteUint(uint64(len(entries))); err != nil {
return "", fmt.Errorf("sending count failed: %w", err)
}
for _, e := range entries {
if err := c.writer.WriteUint(e.Mode); err != nil {
return "", fmt.Errorf("sending mode failed: %w", err)
}
if err := c.writer.WriteData([]byte(e.Name)); err != nil {
return "", fmt.Errorf("sending name failed: %w", err)
}
raw, err := hex.DecodeString(e.OID)
if err != nil {
return "", fmt.Errorf("decode oid hex: %w", err)
}
if err := c.writer.WriteDataFixed(raw); err != nil {
return "", fmt.Errorf("sending oid failed: %w", err)
}
}
status, err := c.reader.ReadUint()
if err != nil {
return "", fmt.Errorf("reading status failed: %w", err)
}
if status != 0 {
return "", Perror(status)
}
id, err := c.reader.ReadData()
if err != nil {
return "", fmt.Errorf("reading oid failed: %w", err)
}
return hex.EncodeToString(id), nil
}
func (c *Client) WriteBlob(repoPath string, content []byte) (string, error) {
if err := c.writer.WriteData([]byte(repoPath)); err != nil {
return "", fmt.Errorf("sending repo path failed: %w", err)
}
if err := c.writer.WriteUint(11); err != nil {
return "", fmt.Errorf("sending command failed: %w", err)
}
if err := c.writer.WriteData(content); err != nil {
return "", fmt.Errorf("sending blob content failed: %w", err)
}
status, err := c.reader.ReadUint()
if err != nil {
return "", fmt.Errorf("reading status failed: %w", err)
}
if status != 0 {
return "", Perror(status)
}
id, err := c.reader.ReadData()
if err != nil {
return "", fmt.Errorf("reading oid failed: %w", err)
}
return hex.EncodeToString(id), nil
}
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