1import { execSync } from 'child_process'
2import { ptDir } from '../../../serverF/ptDirF.mts'
3
4const parseGitStatusPorcelain = (stdout: string): string[] =>
5  stdout.split('\n').map(line => {
6    const match = line.match(/^.{2}\s(.+?)(?:\s->\s.+)?$/)
7    return match?.[1]
8  }).filter(Boolean) as string[]
9
10export const getUncommittedInPathSet = (pathsA: string[]): string[] => {
11  const stdout = execSync('git status --porcelain', { cwd: ptDir, encoding: 'utf8' })
12  if (!stdout.trim()) return []
13  const changedFiles = parseGitStatusPorcelain(stdout)
14  const pathsSet = new Set(pathsA)
15  return changedFiles.filter(f => pathsSet.has(f) || pathsA.some(p => f.startsWith(p + '/')))
16}
17
18export const getGitignoredInPathSet = (pathsA: string[]): string[] => {
19  if (pathsA.length === 0) return []
20  // Batch to avoid pipe buffer limits; skip paths in submodules (git check-ignore exits 128 on them)
21  const batchSize = 1000
22  const ignoredA: string[] = []
23  for (let i = 0; i < pathsA.length; i += batchSize) {
24    const batch = pathsA.slice(i, i + batchSize)
25    const input = batch.join('\n')
26    try {
27      const stdout = execSync('git check-ignore --stdin', { cwd: ptDir, input, encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'], maxBuffer: 10 * 1024 * 1024 }).trim()
28      if (stdout) ignoredA.push(...stdout.split('\n').filter(Boolean))
29    } catch (e: any) {
30      if (e.status === 1) continue // exit 1 = no paths ignored in this batch
31      if (e.status === 128) continue // exit 128 = fatal (e.g. submodule paths) — skip batch, filtered later by isExcludedPath
32      throw e
33    }
34  }
35  return ignoredA
36}
37
38export const gitDiffQuietInPaths = (fromSha: string, toSha: string, pathsA: string[]): boolean => {
39  try {
40    execSync(
41      `git diff --quiet ${fromSha}..${toSha} -- ${pathsA.join(' ')}`,
42      { cwd: ptDir, stdio: 'pipe', maxBuffer: 10 * 1024 * 1024 },
43    )
44    return true // exit 0 = no diff
45  } catch {
46    return false // exit 1 = has diff
47  }
48}
49