brew/Library/Contributions/cmd/brew-pull.rb

90 lines
2.7 KiB
Ruby
Executable File

# Gets a patch from a GitHub commit or pull request and applies it to Homebrew.
# Optionally, installs it too.
require 'utils'
require 'formula'
def tap arg
match = arg.match(%r[homebrew-(\w+)/])
match[1].downcase if match
end
if ARGV.empty?
onoe 'This command requires at least one argument containing a URL or pull request number'
end
if ARGV[0] == '--rebase'
onoe 'You meant `git pull --rebase`.'
end
ARGV.named.each do|arg|
if arg.to_i > 0
url = 'https://github.com/mxcl/homebrew/pull/' + arg
else
url_match = arg.match HOMEBREW_PULL_OR_COMMIT_URL_REGEX
unless url_match
ohai 'Ignoring URL:', "Not a GitHub pull request or commit: #{arg}"
next
end
url = url_match[0]
end
if tap url
Dir.chdir HOMEBREW_REPOSITORY/"Library/Taps/#{url_match[1].downcase}-#{tap url}"
else
Dir.chdir HOMEBREW_REPOSITORY
end
# GitHub provides commits'/pull-requests' raw patches using this URL.
url += '.patch'
# The cache directory seems like a good place to put patches.
HOMEBREW_CACHE.mkpath
patchpath = HOMEBREW_CACHE + File.basename(url)
curl url, '-o', patchpath
# Store current revision
revision = `git rev-parse --short HEAD`.strip
ohai 'Applying patch'
patch_args = ['am']
patch_args << '--signoff' unless ARGV.include? '--clean'
# Normally we don't want whitespace errors, but squashing them can break
# patches so an option is provided to skip this step.
patch_args << '--whitespace=fix' unless ARGV.include? '--ignore-whitespace' or ARGV.include? '--clean'
patch_args << patchpath
safe_system 'git', *patch_args
issue = arg.to_i > 0 ? arg.to_i : url_match[4]
if issue and not ARGV.include? '--clean'
ohai "Patch closes issue ##{issue}"
message = `git log HEAD^.. --format=%B`
# If this is a pull request, append a close message.
unless message.include? 'Closes #'
issueline = "Closes ##{issue}."
signed = 'Signed-off-by:'
message = message.gsub signed, issueline + "\n\n" + signed
safe_system 'git', 'commit', '--amend', '-q', '-m', message
end
end
ohai 'Patch changed:'
safe_system 'git', '--no-pager', 'diff', "#{revision}..", '--stat'
if ARGV.include? '--install'
`git diff #{revision}.. --name-status`.each_line do |line|
status, filename = line.split
# Don't try and do anything to removed files.
if (status == 'A' or status == 'M') and filename.include? '/Formula/' or tap url
formula = File.basename(filename, '.rb')
ohai "Installing #{formula}"
install = Formula.factory(formula).installed? ? 'upgrade' : 'install'
safe_system 'brew', install, '--debug', '--fresh', formula
end
end
end
end