100 lines
2.5 KiB
Ruby
100 lines
2.5 KiB
Ruby
# typed: true
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# frozen_string_literal: true
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# Performs {Formula#mktemp}'s functionality, and tracks the results.
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# Each instance is only intended to be used once.
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class Mktemp
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include FileUtils
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# Path to the tmpdir used in this run, as a {Pathname}.
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attr_reader :tmpdir
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def initialize(prefix, opts = {})
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@prefix = prefix
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@retain_in_cache = opts[:retain_in_cache]
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@retain = opts[:retain] || @retain_in_cache
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@quiet = false
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end
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# Instructs this {Mktemp} to retain the staged files.
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sig { void }
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def retain!
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@retain = true
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end
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# True if the staged temporary files should be retained.
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def retain?
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@retain
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end
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# True if the source files should be retained.
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def retain_in_cache?
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@retain_in_cache
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end
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# Instructs this Mktemp to not emit messages when retention is triggered.
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sig { void }
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def quiet!
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@quiet = true
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end
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sig { returns(String) }
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def to_s
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"[Mktemp: #{tmpdir} retain=#{@retain} quiet=#{@quiet}]"
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end
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def run
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prefix_name = @prefix.tr "@", "AT"
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@tmpdir = if retain_in_cache?
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tmp_dir = HOMEBREW_CACHE/"Sources/#{prefix_name}"
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chmod_rm_rf(tmp_dir) # clear out previous staging directory
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tmp_dir.mkpath
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tmp_dir
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else
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Pathname.new(Dir.mktmpdir("#{prefix_name}-", HOMEBREW_TEMP))
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end
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# Make sure files inside the temporary directory have the same group as the
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# brew instance.
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#
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# Reference from `man 2 open`
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# > When a new file is created, it is given the group of the directory which
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# contains it.
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group_id = if HOMEBREW_BREW_FILE.grpowned?
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HOMEBREW_BREW_FILE.stat.gid
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else
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Process.gid
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end
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begin
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chown(nil, group_id, @tmpdir)
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rescue Errno::EPERM
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opoo "Failed setting group \"#{T.must(Etc.getgrgid(group_id)).name}\" on #{@tmpdir}"
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end
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begin
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Dir.chdir(tmpdir) { yield self }
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ensure
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ignore_interrupts { chmod_rm_rf(@tmpdir) } unless retain?
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end
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ensure
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if retain? && @tmpdir.present? && !@quiet
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message = retain_in_cache? ? "Source files for debugging available at:" : "Temporary files retained at:"
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ohai message, @tmpdir.to_s
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end
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end
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private
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def chmod_rm_rf(path)
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if path.directory? && !path.symlink?
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chmod("u+rw", path) if path.owned? # Need permissions in order to see the contents
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path.children.each { |child| chmod_rm_rf(child) }
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rmdir(path)
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else
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rm_f(path)
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end
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rescue
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nil # Just skip this directory.
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end
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end
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