23 lines
732 B
Ruby
23 lines
732 B
Ruby
require 'open3'
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class Cask::Fetcher
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TIMEOUT = 10
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def self.head(url)
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if url.to_s =~ /googlecode/
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googlecode_fake_head(url)
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else
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Cask::SystemCommand.run("curl",
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:args => ["--max-time", TIMEOUT, "--silent", "--location", "--head", url])
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end
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end
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# google code does not properly respond to HTTP HEAD requests, like a jerk
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# this fakes a HEAD by doing a GET, taking the first 20 lines, then running away
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def self.googlecode_fake_head(url)
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command = "curl --max-time #{TIMEOUT} --verbose --location '#{url}' | head -n 20 > /dev/null"
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stderr = Open3.popen3(command) { |_, _, err, _| err.read }
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stderr.split("\n").grep(/^< /).map { |line| line.sub(/^< /, '') }.join("\n")
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end
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end
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