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require 'formula'
module Homebrew
def fetch
raise FormulaUnspecifiedError if ARGV.named.empty?
if ARGV.include? '--deps'
bucket = []
ARGV.formulae.each do |f|
bucket << f
bucket.concat f.recursive_dependencies.map(&:to_formula)
end
bucket.uniq!
else
bucket = ARGV.formulae
end
puts "Fetching: #{bucket * ', '}" if bucket.size > 1
bucket.each do |f|
if fetch_bottle?(f)
fetch_formula(f.bottle)
else
fetch_formula(f)
f.resources.each { |r| fetch_resource(r) }
f.patchlist.select(&:external?).each { |p| fetch_patch(p) }
end
end
end
def fetch_bottle? f
return true if ARGV.force_bottle? && f.bottle
return false unless f.bottle && f.pour_bottle?
return false if ARGV.build_from_source? || ARGV.build_bottle?
return false unless f.bottle.compatible_cellar?
return true
end
def fetch_resource r
puts "Resource: #{r.name}"
fetch_fetchable r
rescue ChecksumMismatchError => e
retry if retry_fetch? r
opoo "Resource #{r.name} reports different #{e.hash_type}: #{e.expected}"
end
def fetch_formula f
fetch_fetchable f
rescue ChecksumMismatchError => e
retry if retry_fetch? f
opoo "Formula reports different #{e.hash_type}: #{e.expected}"
end
def fetch_patch p
fetch_fetchable p
rescue ChecksumMismatchError => e
Homebrew.failed = true
opoo "Patch reports different #{e.hash_type}: #{e.expected}"
end
private
def retry_fetch? f
@fetch_failed ||= Set.new
if ARGV.include?("--retry") && @fetch_failed.add?(f.name)
ohai "Retrying download"
f.clear_cache
true
else
Homebrew.failed = true
false
end
end
def fetch_fetchable f
f.clear_cache if ARGV.force?
already_fetched = f.cached_download.exist?
begin
download = f.fetch
rescue DownloadError
retry if retry_fetch? f
raise
end
return unless download.file?
puts "Downloaded to: #{download}" unless already_fetched
puts Checksum::TYPES.map { |t| "#{t.to_s.upcase}: #{download.send(t)}" }
f.verify_download_integrity(download)
end
end
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