Class: PivotalGitScripts::GitPair::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/pivotal_git_scripts/git_pair.rb

Instance Method Summary collapse

Instance Method Details

#build_email(emails, config) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 172

def build_email(emails, config)
  if config.is_a?(Hash)
    prefix = config['prefix'] if !config['no_solo_prefix'] or emails.size > 1
    "#{([prefix] + emails).compact.join('+')}@#{config['domain']}"
  else
    config
  end
end

#commit(argv) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 51

def commit(argv)
  if argv[0] == '-h'
    puts 'Usage: git pair-commit [options_for_git_commit]'
    puts ''
    puts 'Commits changes to the repository using `git commit`, but randomly chooses the author email from the'
    puts 'members of the pair. In order for GitHub to assign credit for the commit activity, the user\'s email'
    puts 'must be linked in their GitHub account.'
    exit 0
  end

  config = read_pairs_config
  author_details = extract_author_details_from_config(config, current_pair_initials)
  author_names = author_details.keys.map { |i| author_details[i][:name] }
  authors = pair_names(author_names)
  author_email = random_author_email(author_details)
  puts "Committing under #{author_email}"
  passthrough_args =  argv.map{|arg| "'#{arg}'"}.join(' ')
  env_variables = "GIT_AUTHOR_NAME='#{authors}' GIT_AUTHOR_EMAIL='#{author_email}' GIT_COMMITTER_NAME='#{authors}' GIT_COMMITTER_EMAIL='#{author_email}'"
  system "#{env_variables} git commit #{passthrough_args}"
rescue GitPairException => e
  puts e.message
  exit 1
end

#current_pair_initials ⇒ Object

Raises:



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 75

def current_pair_initials
  initials = `git config user.initials`.strip.split(' ')
  raise GitPairException, 'Error: No pair set. Please set your pair with `git pair ...`' if initials.empty?
  initials
end

#extract_author_details_from_config(config, initials) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 218

def extract_author_details_from_config(config, initials)
  details = {}

  initials.each do |i|
    info = read_author_info_from_config(config, [i]).first

    full_name, email_id = info.split(";").map(&:strip)
    email_id ||= full_name.split(' ').first.downcase

    email = read_custom_email_address_from_config(config, i)
    email ||= "#{email_id}@#{config['email']['domain']}"

    details[i] = {
      :name => full_name,
      :email => email
    }
  end

  details
end

#extract_author_names_and_email_ids_from_config(config, initials) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 204

def extract_author_names_and_email_ids_from_config(config, initials)
  authors = read_author_info_from_config(config, initials)
  authors.sort!.uniq! # FIXME
  authors.map do |a|
    full_name, email_id = a.split(";").map(&:strip)
    email_id ||= full_name.split(' ').first.downcase
    [full_name, email_id]
  end.transpose
end

#main(argv) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 21

def main(argv)
  git_dir = `git rev-parse --git-dir`.chomp
  exit 1 if git_dir.empty?

  options = parse_cli_options(argv)
  initials = argv
  config = read_pairs_config
  global = !!(options[:global] || config["global"])

  if initials.any?
    author_names, email_ids = extract_author_names_and_email_ids_from_config(config, initials)
    authors = pair_names(author_names)
    git_config = {:name => authors,  :initials => initials.sort.join(" ")}
    git_config[:email] = build_email(email_ids, config["email"]) unless no_email(config)
    set_git_config global,  git_config
  else
    git_config = {:name => nil,  :initials => nil}
    git_config[:email] = nil unless no_email(config)
    set_git_config global, git_config
    puts "Unset#{' global' if global} user.name, #{'user.email, ' unless no_email(config)}user.initials"
  end

  [:name, :email, :initials].each do |key|
    report_git_settings(git_dir, key)
  end
rescue GitPairException => e
  puts e.message
  exit 1
end

#no_email(config) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 214

def no_email(config)
  !config.key? 'email'
end

#parse_cli_options(argv) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 81

def parse_cli_options(argv)
  options = {}
  OptionParser.new do |opts|
    # copy-paste from readme
    opts.banner = <<BANNER.sub('<br/>','')
Configures git authors when pair programming.

    git pair sp js
    user.name=Josh Susser and Sam Pierson
    [email protected]


Create a `.pairs` config file in project root or your home folder.

    # .pairs - configuration for 'git pair'
    pairs:
      # <initials>: <Firstname> <Lastname>[; <email-id>]
      eh: Edward Hieatt
      js: Josh Susser; jsusser
      sf: Serguei Filimonov; serguei
    # if email section is present, email will be set
    # if you leave out the email config section, email will not be set
    email:
      prefix: pair
      domain: pivotallabs.com
      # no_solo_prefix: true
    #global: true
    # include the following section to set custom email addresses for users
    #email_addresses:
    #  zr: [email protected]


By default this affects the current project (.git/config).<br/>
Use the `--global` option or add `global: true` to your `.pairs` file to set the global git configuration for all projects (~/.gitconfig).

Options are:
BANNER
    opts.on("-g", "--global", "Modify global git options instead of local") { options[:global] = true }
    opts.on("-v", "--version", "Show Version") do
      puts PivotalGitScripts::VERSION
      exit
    end
    opts.on("-h", "--help", "Show this.") { puts opts; exit }
  end.parse!(argv)

  options
end

#random_author_email(author_details) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 181

def random_author_email(author_details)
  author_id = author_details.keys.sample
  author_details[author_id][:email]
end

#read_author_info_from_config(config, initials_ary) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 165

def read_author_info_from_config(config, initials_ary)
  initials_ary.map do |initials|
    config['pairs'][initials.downcase] or
      raise GitPairException, "Couldn't find author name for initials: #{initials}. Add this person to the .pairs file in your project or home directory."
  end
end

#read_custom_email_address_from_config(config, initial) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 239

def read_custom_email_address_from_config(config, initial)
  return nil unless config['email_addresses']
  return config['email_addresses'][initial.downcase]
end

#read_pairs_config ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 129

def read_pairs_config
  pairs_file_name = '.pairs'

  directory = File.absolute_path(Dir.pwd)
  candidate_directories = [directory]
  while ! Pathname.new(directory).root? do
    directory = File.absolute_path(File.join(directory, ".."))
    candidate_directories << directory
  end
  home = File.absolute_path(ENV["HOME"])
  candidate_directories << home unless candidate_directories.include? home

  pairs_file_path = candidate_directories.
    map { |d| File.join(d, ".pairs") }.
    find { |f| File.exists? f }

  unless pairs_file_path
    raise GitPairException, <<-INSTRUCTIONS
Could not find a .pairs file. Create a YAML file in your project or home directory.
Format: <initials>: <name>[; <email>]
Example:
# .pairs - configuration for 'git pair'
# place in project or home directory
pairs:
  eh: Edward Hieatt
  js: Josh Susser; jsusser
  sf: Serguei Filimonov; serguei
email:
  prefix: pair
  domain: pivotallabs.com
INSTRUCTIONS
  end

  YAML.load_file(pairs_file_path)
end

#report_git_settings(git_dir, key) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 194

def report_git_settings(git_dir, key)
  global = `git config --global --get-regexp '^user\.#{key}'`
  local = `git config -f #{git_dir}/config --get-regexp '^user\.#{key}'`
  if global.length > 0 && local.length > 0
    puts "NOTE: Overriding global user.#{key} setting with local."
  end
  puts "global: #{global}" if global.length > 0
  puts "local:  #{local}" if local.length > 0
end

#set_git_config(global, options) ⇒ Object 



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# File 'lib/pivotal_git_scripts/git_pair.rb', line 186

def set_git_config(global, options)
  options.each do |key,value|
    config_key = "user.#{key}"
    arg = value ? %Q{#{config_key} "#{value}"} : "--unset #{config_key}"
    system(%Q{git config#{' --global' if global} #{arg}})
  end
end