Class: Ace::Git::Worktree::Molecules::CleanupPrResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/ace/git/worktree/molecules/cleanup_pr_resolver.rb

Overview

Resolves PR evidence for candidate branches to prove safe squash-merge cleanup.

Instance Method Summary collapse

Constructor Details

#initialize(target:, target_sha:, offline: false) ⇒ CleanupPrResolver

Returns a new instance of CleanupPrResolver.



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# File 'lib/ace/git/worktree/molecules/cleanup_pr_resolver.rb', line 13

def initialize(target:, target_sha:, offline: false)
  @target = target
  @target_sha = target_sha
  @offline = offline
  
  # Cache gh availability to avoid repeated checks
  @gh_available = Ace::Git::Molecules::PrMetadataFetcher.gh_installed? && 
                  Ace::Git::Molecules::PrMetadataFetcher.gh_authenticated?
end

Instance Method Details

#classify(branch, candidate_sha) ⇒ Hash

Classify a candidate branch with GitHub PR evidence.

Parameters:

  • branch (String) —

    The branch name (e.g. "feature")

  • candidate_sha (String) —

    The commit SHA of the candidate

Returns:

  • (Hash) —

    Proof classification result



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# File 'lib/ace/git/worktree/molecules/cleanup_pr_resolver.rb', line 28

def classify(branch, candidate_sha)
  return offline_result unless @gh_available && !@offline

  prs = fetch_merged_prs_for_branch(branch)
  return unproven_result if prs.nil? || prs.empty?

  # Find a PR that targets the configured base and is actually reachable
  valid_pr = prs.find do |pr|
    pr["baseRefName"] == @target && 
    pr["state"] == "MERGED" && 
    pr["mergeCommit"] && 
    pr["mergeCommit"]["oid"] &&
    ancestor?(pr["mergeCommit"]["oid"], @target_sha)
  end

  return ambiguous_result(prs) if prs.length > 1 && !valid_pr
  return unproven_result unless valid_pr

  merge_commit_sha = valid_pr["mergeCommit"]["oid"]
  pr_head_sha = valid_pr["headRefOid"]

  if candidate_sha == pr_head_sha
    {
      proof: "exact_merged_pr_head",
      pr: valid_pr["number"],
      candidate_head: candidate_sha,
      merged_head: pr_head_sha,
      merge_commit: merge_commit_sha,
      target_reachable: true,
      path_type_mode_match: true,
      provider_status: "available",
      action: "remove"
    }
  elsif patch_equivalent?(candidate_sha, merge_commit_sha)
    {
      proof: "stable_patch_equivalence",
      pr: valid_pr["number"],
      candidate_head: candidate_sha,
      merged_head: pr_head_sha,
      merge_commit: merge_commit_sha,
      target_reachable: true,
      path_type_mode_match: true,
      provider_status: "available",
      action: "remove"
    }
  else
    {
      proof: "none",
      pr: valid_pr["number"],
      candidate_head: candidate_sha,
      merged_head: pr_head_sha,
      merge_commit: merge_commit_sha,
      target_reachable: true,
      path_type_mode_match: false,
      provider_status: "available",
      action: "retain",
      retention_reason: "patch_mismatch"
    }
  end
rescue Ace::Git::GhNotInstalledError, Ace::Git::GhAuthenticationError, Ace::Git::TimeoutError
  # Provider failure degradation
  offline_result("unavailable")
end