mirror of
https://github.com/donl/homebrew-cask-versions.git
synced 2026-07-17 14:26:45 -06:00
c85ef168fc
- add `run!` method which raises if command does not succeed - use `run!` when the command we are running must succeed for things to move forward. this should help produce clearer error messages in failure scenarios. - move caveats earlier in the install process so reports can be made about potential failures - remove the destination tree on cask install failure, so the cask will not be considered installed
48 lines
999 B
Ruby
48 lines
999 B
Ruby
class Cask::Container::Dmg < Cask::Container::Base
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def self.me?(criteria)
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criteria.imageinfo != ''
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end
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attr_reader :mounts
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def initialize(*args)
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super(*args)
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@mounts = []
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end
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def extract
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mount!
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assert_mounts_found
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@mounts.each do |mount|
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@command.run('ditto', :args => [mount, @cask.destination_path])
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end
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ensure
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eject!
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end
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def mount!
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plist = @command.run!('hdiutil',
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:args => %w[mount -plist -nobrowse -readonly -noidme -mountrandom /tmp] + [@path],
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:input => %w[y],
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:plist => true
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)
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@mounts = mounts_from_plist(plist)
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end
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def mounts_from_plist(plist)
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plist.fetch('system-entities', []).map do |entity|
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entity['mount-point']
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end.compact
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end
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def assert_mounts_found
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if @mounts.empty?
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raise "no mounts found in #{@path}; perhaps its a bad dmg?"
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end
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end
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def eject!
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@mounts.each do |mount|
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@command.run!('hdiutil', :args => ['eject', mount])
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end
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end
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end
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