Class: Ace::Assign::Molecules::EvidenceCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/ace/assign/molecules/evidence_calculator.rb

Overview

Computes exact-head evidence receipts and canonical decision digests for assignment delivery.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.calculate(pr_number: nil, auto_merge: false) ⇒ Object 



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# File 'lib/ace/assign/molecules/evidence_calculator.rb', line 12

def self.calculate(pr_number: nil, auto_merge: false)
  new.calculate(pr_number: pr_number, auto_merge: auto_merge)
end

Instance Method Details

#calculate(pr_number: nil, auto_merge: false) ⇒ Object 



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# File 'lib/ace/assign/molecules/evidence_calculator.rb', line 16

def calculate(pr_number: nil, auto_merge: false)
  root = Ace::Support::Fs::Molecules::ProjectRootFinder.find_or_current

  if pr_number.nil?
    pr_output, s = Open3.capture2("ace-git", "pr", "--format", "json", chdir: root)
    if s.success?
      begin
        require "json"
        pr_data = JSON.parse(pr_output)
        pr_number = pr_data["number"]
      rescue StandardError
      end
    end
  end

  head, _s = Open3.capture2("git", "rev-parse", "HEAD", chdir: root)
  head = head.to_s.strip

  tree, _s = Open3.capture2("git", "rev-parse", "HEAD^{tree}", chdir: root)
  tree = tree.to_s.strip

  diff_output, _s = Open3.capture2("git", "diff", "HEAD", chdir: root)
  changed_scope_digest = Digest::SHA256.hexdigest(diff_output.to_s)

  review_receipt = evaluate_review_receipt(root, head)
  release_receipt = evaluate_release_receipt(root, head)
  feedback_state = "terminal"

  merge_decision = evaluate_merge_decision(
    auto_merge: auto_merge,
    review_receipt: review_receipt,
    release_receipt: release_receipt,
    feedback_state: feedback_state
  )

  canonical_payload = [
    pr_number || "none",
    head,
    tree,
    changed_scope_digest,
    review_receipt,
    release_receipt,
    feedback_state,
    merge_decision
  ].join(":")

  decision_digest = Digest::SHA256.hexdigest(canonical_payload)

  {
    pr: pr_number || "none",
    head: head,
    tree: tree,
    changed_scope_digest: changed_scope_digest,
    review_receipt: review_receipt,
    release_receipt: release_receipt,
    feedback_state: feedback_state,
    merge_decision: merge_decision,
    decision_digest: decision_digest
  }
end