128 lines
3.5 KiB
Ruby
Executable File
128 lines
3.5 KiB
Ruby
Executable File
# frozen_string_literal: true
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require "cask/cmd/abstract_internal_command"
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require "tap"
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require "utils/formatter"
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require "utils/github"
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module Cask
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class Cmd
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class Automerge < AbstractInternalCommand
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OFFICIAL_CASK_TAPS = [
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"homebrew/cask",
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"homebrew/cask-drivers",
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"homebrew/cask-eid",
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"homebrew/cask-fonts",
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"homebrew/cask-versions",
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].freeze
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def run
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taps = OFFICIAL_CASK_TAPS.map(&Tap.public_method(:fetch))
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access = taps.all? { |tap| GitHub.write_access?(tap.full_name) }
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raise "This command may only be run by Homebrew maintainers." unless access
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Homebrew.install_gem! "git_diff"
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require "git_diff"
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failed = []
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taps.each do |tap|
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open_pull_requests = GitHub.pull_requests(tap.full_name, state: :open, base: "master")
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open_pull_requests.each do |pr|
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next unless passed_ci(pr)
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next unless check_diff(pr)
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number = pr["number"]
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sha = pr.dig("head", "sha")
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print "#{Formatter.url(pr["html_url"])} "
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retried = false
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begin
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GitHub.merge_pull_request(
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tap.full_name,
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number: number, sha: sha,
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merge_method: :squash,
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commit_message: "Squashed and auto-merged via `brew cask automerge`."
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)
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puts "#{Tty.bold}#{Formatter.success("✔")}#{Tty.reset}"
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rescue
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unless retried
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retried = true
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sleep 5
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retry
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end
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puts "#{Tty.bold}#{Formatter.error("✘")}#{Tty.reset}"
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failed << pr["html_url"]
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end
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end
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end
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return if failed.empty?
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$stderr.puts
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raise CaskError, "Failed to merge the following PRs:\n#{failed.join("\n")}"
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end
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def passed_ci(pr)
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statuses = GitHub.open_api(pr["statuses_url"])
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latest_pr_status = statuses.select { |status| status["context"] == "continuous-integration/travis-ci/pr" }
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.max_by { |status| Time.parse(status["updated_at"]) }
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latest_pr_status&.fetch("state") == "success"
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end
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def check_diff(pr)
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diff_url = pr["diff_url"]
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output, _, status = curl_output("--location", diff_url)
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return false unless status.success?
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diff = GitDiff.from_string(output)
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diff_is_single_cask(diff) && diff_only_version_or_checksum_changed(diff)
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end
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def diff_is_single_cask(diff)
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return false unless diff.files.count == 1
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file = diff.files.first
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return false unless file.a_path == file.b_path
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file.a_path.match?(%r{\ACasks/[^/]+\.rb\Z})
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end
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def diff_only_version_or_checksum_changed(diff)
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lines = diff.files.flat_map(&:hunks).flat_map(&:lines)
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additions = lines.select(&:addition?)
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deletions = lines.select(&:deletion?)
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changed_lines = deletions + additions
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return false if additions.count != deletions.count
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return false if additions.count > 2
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changed_lines.all? { |line| diff_line_is_version(line.to_s) || diff_line_is_sha256(line.to_s) }
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end
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def diff_line_is_sha256(line)
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line.match?(/\A[+-]\s*sha256 '[0-9a-f]{64}'\Z/)
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end
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def diff_line_is_version(line)
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line.match?(/\A[+-]\s*version '[^']+'\Z/)
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end
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def self.help
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"automatically merge “simple” Cask pull requests"
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end
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end
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end
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end
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