Class: Build

Inherits:
Object
  • Object
show all
Defined in:
brew/Library/Homebrew/build.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(formula, options) ⇒ Build

Returns a new instance of Build



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# File 'brew/Library/Homebrew/build.rb', line 20

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

Instance Attribute Details

#depsObject (readonly)

Returns the value of attribute deps



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# File 'brew/Library/Homebrew/build.rb', line 18

def deps
  @deps
end

#formulaObject (readonly)

Returns the value of attribute formula



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# File 'brew/Library/Homebrew/build.rb', line 18

def formula
  @formula
end

#reqsObject (readonly)

Returns the value of attribute reqs



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# File 'brew/Library/Homebrew/build.rb', line 18

def reqs
  @reqs
end

Instance Method Details

#detect_stdlibs(compiler) ⇒ Object



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# File 'brew/Library/Homebrew/build.rb', line 159

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

#effective_build_options_for(dependent) ⇒ Object



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# File 'brew/Library/Homebrew/build.rb', line 41

def effective_build_options_for(dependent)
  args  = dependent.build.used_options
  args |= Tab.for_formula(dependent).used_options
  BuildOptions.new(args, dependent.options)
end

#expand_depsObject



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# File 'brew/Library/Homebrew/build.rb', line 58

def expand_deps
  formula.recursive_dependencies do |dependent, dep|
    build = effective_build_options_for(dependent)
    if dep.prune_from_option?(build)
      Dependency.prune
    elsif dep.prune_if_build_and_not_dependent?(dependent, formula)
      Dependency.prune
    elsif dep.build?
      Dependency.keep_but_prune_recursive_deps
    end
  end
end

#expand_reqsObject



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# File 'brew/Library/Homebrew/build.rb', line 47

def expand_reqs
  formula.recursive_requirements do |dependent, req|
    build = effective_build_options_for(dependent)
    if req.prune_from_option?(build)
      Requirement.prune
    elsif req.prune_if_build_and_not_dependent?(dependent, formula)
      Requirement.prune
    end
  end
end

#fixopt(f) ⇒ Object



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# File 'brew/Library/Homebrew/build.rb', line 169

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
  raise "#{f.opt_prefix} not present or broken\nPlease reinstall #{f.full_name}. Sorry :("
end

#installObject



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# File 'brew/Library/Homebrew/build.rb', line 71

def install
  formula_deps = deps.map(&:to_formula)
  keg_only_deps = formula_deps.select(&:keg_only?)
  run_time_deps = deps.reject(&:build?).map(&:to_formula)

  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.run_time_deps = run_time_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

  new_env = {
    "TMPDIR" => HOMEBREW_TEMP,
    "TEMP"   => HOMEBREW_TEMP,
    "TMP"    => HOMEBREW_TEMP,
  }

  with_env(new_env) do
    formula.extend(Debrew::Formula) if ARGV.debug?

    formula.brew do |_formula, staging|
      # For head builds, HOMEBREW_FORMULA_PREFIX should include the commit,
      # which is not known until after the formula has been staged.
      ENV["HOMEBREW_FORMULA_PREFIX"] = formula.prefix

      staging.retain! if ARGV.keep_tmp?
      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.logs/"00.options.out").write \
          "#{formula.full_name} #{formula.build.used_options.sort.join(" ")}".strip
        formula.install

        stdlibs = detect_stdlibs(ENV.compiler)
        tab = Tab.create(formula, ENV.compiler, stdlibs.first)
        tab.write

        # Find and link metafiles
        formula.prefix.install_metafiles formula.buildpath
        formula.prefix.install_metafiles formula.libexec if formula.libexec.exist?
      end
    end
  end
end

#post_superenv_hacksObject



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# File 'brew/Library/Homebrew/build.rb', line 33

def post_superenv_hacks
  # Only allow Homebrew-approved directories into the PATH, unless
  # a formula opts-in to allowing the user's path.
  return unless formula.env.userpaths? || reqs.any? { |rq| rq.env.userpaths? }

  ENV.userpaths!
end