spring-security/git/hooks/forward-merge

136 lines
5.0 KiB
Ruby
Executable File

#!/usr/bin/ruby
require 'json'
require 'net/http'
require 'yaml'
require 'logger'
$log = Logger.new(STDOUT)
$log.level = Logger::WARN
class ForwardMerge
attr_reader :issue, :milestone, :message, :line
def initialize(issue, milestone, message, line)
@issue = issue
@milestone = milestone
@message = message
@line = line
end
end
def find_forward_merges(message_file)
$log.debug "Searching for forward merge"
rev=`git rev-parse -q --verify MERGE_HEAD`.strip
$log.debug "Found #{rev} from git rev-parse"
return nil unless rev
message = File.read(message_file)
forward_merges = []
message.each_line do |line|
$log.debug "Checking #{line} for message"
match = /^(?:Fixes|Closes) gh-(\d+) in (\d\.\d\.[\dx](?:[\.\-](?:M|RC)\d)?)$/.match(line)
if match then
issue = match[1]
milestone = match[2]
$log.debug "Matched reference to issue #{issue} in milestone #{milestone}"
forward_merges << ForwardMerge.new(issue, milestone, message, line)
end
end
$log.debug "No match in merge message" unless forward_merges
return forward_merges
end
def get_issue(username, password, repository, number)
$log.debug "Getting issue #{number} from GitHub repository #{repository}"
uri = URI("https://api.github.com/repos/#{repository}/issues/#{number}")
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl=true
request = Net::HTTP::Get.new(uri.path)
request.basic_auth(username, password)
response = http.request(request)
$log.debug "Get HTTP response #{response.code}"
return JSON.parse(response.body) unless response.code != '200'
puts "Failed to retrieve issue #{number}: #{response.message}"
exit 1
end
def find_milestone(username, password, repository, title)
$log.debug "Finding milestone #{title} from GitHub repository #{repository}"
uri = URI("https://api.github.com/repos/#{repository}/milestones")
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl=true
request = Net::HTTP::Get.new(uri.path)
request.basic_auth(username, password)
response = http.request(request)
milestones = JSON.parse(response.body)
if title.end_with?(".x")
prefix = title.delete_suffix('.x')
$log.debug "Finding nearest milestone from candidates starting with #{prefix}"
titles = milestones.map { |milestone| milestone['title'] }
titles = titles.select{ |title| title.start_with?(prefix) unless title.end_with?('.x')}
titles = titles.sort_by { |v| Gem::Version.new(v) }
$log.debug "Considering candidates #{titles}"
if(titles.empty?)
puts "Cannot find nearest milestone for prefix #{title}"
exit 1
end
title = titles.first
$log.debug "Found nearest milestone #{title}"
end
milestones.each do |milestone|
$log.debug "Considering #{milestone['title']}"
return milestone['number'] if milestone['title'] == title
end
puts "Milestone #{title} not found in #{repository}"
exit 1
end
def create_issue(username, password, repository, original, title, labels, milestone, milestone_name, dry_run)
$log.debug "Finding forward-merge issue in GitHub repository #{repository} for '#{title}'"
uri = URI("https://api.github.com/repos/#{repository}/issues")
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl=true
request = Net::HTTP::Post.new(uri.path, 'Content-Type' => 'application/json')
request.basic_auth(username, password)
request.body = {
title: title,
labels: labels,
milestone: milestone.to_i,
body: "Forward port of issue ##{original} to #{milestone_name}."
}.to_json
if dry_run then
puts "Dry run"
puts "POSTing to #{uri} with body #{request.body}"
return "dry-run"
end
response = JSON.parse(http.request(request).body)
$log.debug "Created new issue #{response['number']}"
return response['number']
end
$log.debug "Running forward-merge hook script"
message_file=ARGV[0]
forward_merges = find_forward_merges(message_file)
exit 0 unless forward_merges
$log.debug "Loading config from ~/.spring-boot/forward_merge.yml"
config = YAML.load_file(File.join(Dir.home, '.spring-boot', 'forward-merge.yml'))
username = config['github']['credentials']['username']
password = config['github']['credentials']['password']
dry_run = config['dry_run']
repository = 'spring-projects/spring-security'
forward_merges.each do |forward_merge|
existing_issue = get_issue(username, password, repository, forward_merge.issue)
title = existing_issue['title']
labels = existing_issue['labels'].map { |label| label['name'] }
labels << "status: forward-port"
$log.debug "Processing issue '#{title}'"
milestone = find_milestone(username, password, repository, forward_merge.milestone)
new_issue_number = create_issue(username, password, repository, forward_merge.issue, title, labels, milestone, forward_merge.milestone, dry_run)
puts "Created gh-#{new_issue_number} for forward port of gh-#{forward_merge.issue} into #{forward_merge.milestone}"
rewritten_message = forward_merge.message.sub(forward_merge.line, "Closes gh-#{new_issue_number}\n")
File.write(message_file, rewritten_message)
end