Class: Ace::Review::Molecules::GhPrFetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/ace/review/molecules/gh_pr_fetcher.rb

Overview

Fetch PR diff and metadata via gh CLI

Class Method Summary collapse

Class Method Details

.fetch_diff(pr_identifier, options = {}) ⇒ Hash

Fetch PR diff content

Parameters:

  • pr_identifier (String) —

    PR identifier (number, URL, or owner/repo#number)

  • options (Hash) (defaults to: {}) —

    Fetch options

Options Hash (options):

  • :max_retries (Integer) —

    Maximum retry attempts (default: 3)

  • :initial_backoff (Integer) —

    Initial backoff in seconds (default: 1)

  • :timeout (Integer) —

    Timeout in seconds for gh CLI (default: 30)

Returns:

  • (Hash) —

    Result with :success, :diff, :error



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# File 'lib/ace/review/molecules/gh_pr_fetcher.rb', line 19

def self.fetch_diff(pr_identifier, options = {})
  # Parse identifier to get gh CLI format using ace-git
  parsed = Ace::Git::Atoms::PrIdentifierParser.parse(pr_identifier)
  gh_format = parsed.gh_format

  # Default timeout for PR diff operations
  timeout = options[:timeout] || 30

  # Fetch diff with retry logic
  result = Ace::Review::Atoms::RetryWithBackoff.execute(options) do
    Ace::Git::Molecules::GhCliExecutor.execute("pr", ["diff", gh_format], timeout: timeout)
  end

  if result[:success]
    {
      success: true,
      diff: result[:stdout],
      identifier: gh_format,
      parsed: parsed.to_h
    }
  else
    handle_fetch_error(result, pr_identifier)
  end
rescue Ace::Review::Errors::DiffTooLargeError
  # Fall back to local git diff when GitHub API rejects large diffs
  fetch_local_diff_fallback(pr_identifier, options)
rescue Ace::Review::Errors::GhCliNotInstalledError, Ace::Review::Errors::GhAuthenticationError,
  Ace::Git::GhNotInstalledError, Ace::Git::GhAuthenticationError
  # Re-raise authentication and installation errors
  raise
rescue => e
  {
    success: false,
    error: "Failed to fetch PR diff: #{e.message}"
  }
end

.fetch_metadata(pr_identifier, options = {}) ⇒ Hash

Fetch PR metadata (state, draft status, title, etc.)

Parameters:

  • pr_identifier (String) —

    PR identifier

  • options (Hash) (defaults to: {}) —

    Fetch options

Options Hash (options):

  • :timeout (Integer) —

    Timeout in seconds for gh CLI (default: 30)

Returns:

  • (Hash) —

    Result with :success, :metadata, :error



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# File 'lib/ace/review/molecules/gh_pr_fetcher.rb', line 62

def self.fetch_metadata(pr_identifier, options = {})
  # Parse identifier using ace-git
  parsed = Ace::Git::Atoms::PrIdentifierParser.parse(pr_identifier)
  gh_format = parsed.gh_format

  # Default timeout for PR operations
  timeout = options[:timeout] || 30

  # Fetch metadata as JSON
  fields = "number,state,isDraft,title,body,author,headRefName,baseRefName,url"

  result = Ace::Review::Atoms::RetryWithBackoff.execute(options) do
    Ace::Git::Molecules::GhCliExecutor.execute("pr", ["view", gh_format, "--json", fields], timeout: timeout)
  end

  if result[:success]
    metadata = JSON.parse(result[:stdout])
    {
      success: true,
      metadata: metadata,
      identifier: gh_format,
      parsed: parsed.to_h
    }
  else
    handle_fetch_error(result, pr_identifier)
  end
rescue JSON::ParserError => e
  {
    success: false,
    error: "Failed to parse PR metadata: #{e.message}"
  }
rescue Ace::Review::Errors::GhCliNotInstalledError, Ace::Review::Errors::GhAuthenticationError,
  Ace::Git::GhNotInstalledError, Ace::Git::GhAuthenticationError
  raise
rescue => e
  {
    success: false,
    error: "Failed to fetch PR metadata: #{e.message}"
  }
end

.fetch_pr(pr_identifier, options = {}) ⇒ Hash

Fetch both diff and metadata in one call

Parameters:

  • pr_identifier (String) —

    PR identifier

  • options (Hash) (defaults to: {}) —

    Fetch options

Returns:

  • (Hash) —

    Result with :success, :diff, :metadata, :error



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# File 'lib/ace/review/molecules/gh_pr_fetcher.rb', line 108

def self.fetch_pr(pr_identifier, options = {})
  # Fetch diff and metadata
  diff_result = fetch_diff(pr_identifier, options)
  return diff_result unless diff_result[:success]

  metadata_result = fetch_metadata(pr_identifier, options)
  return metadata_result unless metadata_result[:success]

  {
    success: true,
    diff: diff_result[:diff],
    metadata: metadata_result[:metadata],
    identifier: diff_result[:identifier],
    parsed: diff_result[:parsed]
  }
end