d9fe48cf54
We use a pipe to marshal exceptions from the build script back to the main Homebrew process; the associated file descriptor is stored in an environment variable so that the script can figure out which descriptor to use after being exec'd. However, any child processes of the build script inherit this descriptor (i.e. anything spawned via "system" by the formula during installation). Normally this is not an issue, but if a formula executes a long-running process such as a daemon, the main Homebrew process will never see EOF on the error pipe because the daemon still has an open descriptor. We can fix this while preserving current behavior by setting the close-on-exec flag on the build script's error pipe descriptor. Signed-off-by: Jack Nagel <jacknagel@gmail.com>
117 lines
3.5 KiB
Ruby
Executable File
117 lines
3.5 KiB
Ruby
Executable File
#!/usr/bin/ruby
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# This script is called by formula_installer as a separate instance.
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# Rationale: Formula can use __END__, Formula can change ENV
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# Thrown exceptions are propogated back to the parent process over a pipe
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ORIGINAL_PATHS = ENV['PATH'].split(':').map{ |p| File.expand_path p }
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require 'global'
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at_exit do
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# the whole of everything must be run in at_exit because the formula has to
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# be the run script as __END__ must work for *that* formula.
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begin
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raise $! if $! # an exception was already thrown when parsing the formula
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require 'extend/ENV'
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require 'hardware'
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require 'keg'
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ENV.extend(HomebrewEnvExtension)
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ENV.setup_build_environment
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# we must do this or tools like pkg-config won't get found by configure scripts etc.
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ENV.prepend 'PATH', "#{HOMEBREW_PREFIX}/bin", ':' unless ORIGINAL_PATHS.include? "#{HOMEBREW_PREFIX}/bin"
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# this is a safety measure for Xcode 4.3 which started not installing
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# dev tools into /usr/bin as a default
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ENV.prepend 'PATH', MacOS.dev_tools_path, ':' unless ORIGINAL_PATHS.include? MacOS.dev_tools_path
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# Force any future invocations of sudo to require the user's password to be
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# re-entered. This is in-case any build script call sudo. Certainly this is
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# can be inconvenient for the user. But we need to be safe.
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system "/usr/bin/sudo -k"
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if ENV['HOMEBREW_ERROR_PIPE']
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require 'fcntl'
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IO.new(ENV['HOMEBREW_ERROR_PIPE'].to_i, 'w').fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC)
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end
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install(Formula.factory($0))
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rescue Exception => e
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if ENV['HOMEBREW_ERROR_PIPE']
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pipe = IO.new(ENV['HOMEBREW_ERROR_PIPE'].to_i, 'w')
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Marshal.dump(e, pipe)
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pipe.close
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exit! 1
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else
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onoe e
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puts e.backtrace
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exit! 2
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end
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end
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end
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def install f
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f.recursive_deps.uniq.each do |dep|
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dep = Formula.factory dep
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if dep.keg_only?
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ENV.prepend 'LDFLAGS', "-L#{dep.lib}"
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ENV.prepend 'CPPFLAGS', "-I#{dep.include}"
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ENV.prepend 'PATH', "#{dep.bin}", ':'
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pcdir = dep.lib/'pkgconfig'
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ENV.prepend 'PKG_CONFIG_PATH', pcdir, ':' if pcdir.directory?
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acdir = dep.share/'aclocal'
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ENV.prepend 'ACLOCAL_PATH', acdir, ':' if acdir.directory?
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end
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end
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if f.fails_with? ENV.compiler
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cs = CompilerSelector.new f
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cs.select_compiler
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cs.advise
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end
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f.brew do
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if ARGV.flag? '--interactive'
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ohai "Entering interactive mode"
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puts "Type `exit' to return and finalize the installation"
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puts "Install to this prefix: #{f.prefix}"
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if ARGV.flag? '--git'
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system "git init"
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system "git add -A"
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puts "This directory is now a git repo. Make your changes and then use:"
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puts " git diff | pbcopy"
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puts "to copy the diff to the clipboard."
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end
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interactive_shell f
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nil
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elsif ARGV.include? '--help'
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system './configure --help'
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exit $?
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else
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f.prefix.mkpath
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f.install
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FORMULA_META_FILES.each do |filename|
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next if File.directory? filename
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target_file = filename
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target_file = "#{filename}.txt" if File.exists? "#{filename}.txt"
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# Some software symlinks these files (see help2man.rb)
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target_file = Pathname.new(target_file).resolved_path
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f.prefix.install target_file => filename rescue nil
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(f.prefix+file).chmod 0644 rescue nil
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end
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end
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end
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rescue Exception
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if f.prefix.directory?
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f.prefix.rmtree
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f.rack.rmdir_if_possible
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end
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raise
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end
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