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# Gets a patch from a GitHub commit or pull request and applies it to Homebrew.
# Optionally, installs it too.
require 'utils.rb'
if ARGV.include? '--install'
ARGV.delete '--install'
install = true
end
if ARGV.empty?
onoe 'This command requires at least one URL argument'
end
HOMEBREW_REPOSITORY.cd do
ARGV.each do|arg|
# This regex should work, if it's too precise, feel free to fix it.
urlmatch = arg.match 'https:\/\/github.com\/\w+\/homebrew\/(pull\/(\d+)|commit\/\w{4,40})'
if !urlmatch
ohai 'Ignoring URL:', "Not a GitHub pull request or commit: #{arg}"
next
end
# GitHub provides commits'/pull-requests' raw patches using this URL.
url = urlmatch[0] + '.patch'
# The cache directory seems like a good place to put patches.
patchpath = (HOMEBREW_CACHE+File.basename(url))
curl url, '-o', patchpath
# Store current revision
revision = `git log -n1 --format=%H`.strip()
# Makes sense to squash whitespace errors, we don't want them.
ohai 'Applying patch'
safe_system 'git', 'am', '--signoff', '--whitespace=fix', patchpath
issue = urlmatch[2]
if issue
ohai "Patch closes issue ##{issue}"
message = `git log HEAD^.. --format=%B`
# If this is a pull request, append a close message.
if !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', 'diff', "#{revision}..", '--stat'
if 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/'
formula = File.basename(filename, '.rb')
ohai "Installing #{formula}"
# Not sure if this is the best way to install?
safe_system 'brew', 'install', '--force', formula
end
end
end
end
end
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