Function applyChange

sdk/src/tools/change-file.ts:75–107

(params: {
  change: FileChange
  resolvedPath: ResolvedProjectPath
  fs: CodebuffFileSystem
})

}

async function applyChange(params: {
  change: FileChange
  resolvedPath: ResolvedProjectPath
  fs: CodebuffFileSystem
}): Promise<ApplyChangeResult> {
  const { change, resolvedPath, fs } = params
  const { content, type } = change
  const { fullPath, relativePath } = resolvedPath

  try {
    const exists = await fileExists({ filePath: fullPath, fs })
    if (!exists) {
      const dirPath = path.dirname(fullPath)
      await fs.mkdir(dirPath, { recursive: true })
    }

    if (type === 'file') {
      await fs.writeFile(fullPath, content)
    } else {
      const oldContent = await fs.readFile(fullPath, 'utf-8')
      const newContent = applyPatch(oldContent, content)
      if (newContent === false) {
        return { status: 'patchFailed', file: relativePath, patch: content }
      }
      await fs.writeFile(fullPath, newContent)
    }

    return { status: exists ? 'modified' : 'created', file: relativePath }
  } catch (error) {
    console.error(`Failed to apply patch to ${relativePath}:`, error, content)
    return { status: 'invalid', file: relativePath }
  }
}