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# This script is loaded by formula_installer as a separate instance.
# Thrown exceptions are propagated back to the parent process over a pipe
old_trap = trap("INT") { exit! 130 }
require "global"
require "build_options"
require "cxxstdlib"
require "keg"
require "extend/ENV"
require "debrew"
require "fcntl"
require "socket"
class Build
attr_reader :formula, :deps, :reqs
def initialize(formula, options)
@formula = formula
@formula.build = BuildOptions.new(options, formula.options)
if ARGV.ignore_deps?
@deps = []
@reqs = []
else
@deps = expand_deps
@reqs = expand_reqs
end
end
def post_superenv_hacks
# Only allow Homebrew-approved directories into the PATH, unless
# a formula opts-in to allowing the user's path.
if formula.env.userpaths? || reqs.any? { |rq| rq.env.userpaths? }
ENV.userpaths!
end
end
def effective_build_options_for(dependent)
args = dependent.build.used_options
args |= Tab.for_formula(dependent).used_options
BuildOptions.new(args, dependent.options)
end
def expand_reqs
formula.recursive_requirements do |dependent, req|
build = effective_build_options_for(dependent)
if (req.optional? || req.recommended?) && build.without?(req)
Requirement.prune
elsif req.build? && dependent != formula
Requirement.prune
elsif req.satisfied? && req.default_formula? && (dep = req.to_dependency).installed?
deps << dep
Requirement.prune
end
end
end
def expand_deps
formula.recursive_dependencies do |dependent, dep|
build = effective_build_options_for(dependent)
if (dep.optional? || dep.recommended?) && build.without?(dep)
Dependency.prune
elsif dep.build? && dependent != formula
Dependency.prune
elsif dep.build?
Dependency.keep_but_prune_recursive_deps
end
end
end
def install
formula_deps = deps.map(&:to_formula)
keg_only_deps = formula_deps.select(&:keg_only?)
formula_deps.each do |dep|
fixopt(dep) unless dep.opt_prefix.directory?
end
ENV.activate_extensions!
if superenv?
ENV.keg_only_deps = keg_only_deps
ENV.deps = formula_deps
ENV.x11 = reqs.any? { |rq| rq.is_a?(X11Requirement) }
ENV.setup_build_environment(formula)
post_superenv_hacks
reqs.each(&:modify_build_environment)
deps.each(&:modify_build_environment)
else
ENV.setup_build_environment(formula)
reqs.each(&:modify_build_environment)
deps.each(&:modify_build_environment)
keg_only_deps.each do |dep|
ENV.prepend_path "PATH", dep.opt_bin.to_s
ENV.prepend_path "PKG_CONFIG_PATH", "#{dep.opt_lib}/pkgconfig"
ENV.prepend_path "PKG_CONFIG_PATH", "#{dep.opt_share}/pkgconfig"
ENV.prepend_path "ACLOCAL_PATH", "#{dep.opt_share}/aclocal"
ENV.prepend_path "CMAKE_PREFIX_PATH", dep.opt_prefix.to_s
ENV.prepend "LDFLAGS", "-L#{dep.opt_lib}" if dep.opt_lib.directory?
ENV.prepend "CPPFLAGS", "-I#{dep.opt_include}" if dep.opt_include.directory?
end
end
formula.extend(Debrew::Formula) if ARGV.debug?
formula.brew do
formula.patch
if ARGV.git?
system "git", "init"
system "git", "add", "-A"
end
if ARGV.interactive?
ohai "Entering interactive mode"
puts "Type `exit' to return and finalize the installation"
puts "Install to this prefix: #{formula.prefix}"
if ARGV.git?
puts "This directory is now a git repo. Make your changes and then use:"
puts " git diff | pbcopy"
puts "to copy the diff to the clipboard."
end
interactive_shell(formula)
else
formula.prefix.mkpath
formula.install
stdlibs = detect_stdlibs(ENV.compiler)
Tab.create(formula, ENV.compiler, stdlibs.first, formula.build, formula.source_modified_time).write
# Find and link metafiles
formula.prefix.install_metafiles formula.buildpath
formula.prefix.install_metafiles formula.libexec if formula.libexec.exist?
end
end
end
def detect_stdlibs(compiler)
keg = Keg.new(formula.prefix)
CxxStdlib.check_compatibility(formula, deps, keg, compiler)
# The stdlib recorded in the install receipt is used during dependency
# compatibility checks, so we only care about the stdlib that libraries
# link against.
keg.detect_cxx_stdlibs(:skip_executables => true)
end
def fixopt(f)
path = if f.linked_keg.directory? && f.linked_keg.symlink?
f.linked_keg.resolved_path
elsif f.prefix.directory?
f.prefix
elsif (kids = f.rack.children).size == 1 && kids.first.directory?
kids.first
else
raise
end
Keg.new(path).optlink
rescue StandardError
raise "#{f.opt_prefix} not present or broken\nPlease reinstall #{f.full_name}. Sorry :("
end
end
begin
error_pipe = UNIXSocket.open(ENV["HOMEBREW_ERROR_PIPE"], &:recv_io)
error_pipe.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC)
trap("INT", old_trap)
formula = ARGV.formulae.first
options = Options.create(ARGV.flags_only)
build = Build.new(formula, options)
build.install
rescue Exception => e
Marshal.dump(e, error_pipe)
error_pipe.close
exit! 1
end