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require "forwardable"
require "language/python"
class Caveats
extend Forwardable
attr_reader :f
def initialize(f)
@f = f
end
def caveats
caveats = []
begin
build = f.build
f.build = Tab.for_formula(f)
s = f.caveats.to_s
caveats << s.chomp + "\n" unless s.empty?
ensure
f.build = build
end
caveats << keg_only_text
caveats << function_completion_caveats(:bash)
caveats << function_completion_caveats(:zsh)
caveats << function_completion_caveats(:fish)
caveats << plist_caveats
caveats << python_caveats
caveats << elisp_caveats
caveats.compact.join("\n")
end
delegate [:empty?, :to_s] => :caveats
private
def keg
@keg ||= [f.prefix, f.opt_prefix, f.linked_keg].map do |d|
begin
Keg.new(d.resolved_path)
rescue
nil
end
end.compact.first
end
def keg_only_text
return unless f.keg_only?
s = <<~EOS
This formula is keg-only, which means it was not symlinked into #{HOMEBREW_PREFIX},
because #{f.keg_only_reason.to_s.chomp}.
EOS
if f.bin.directory? || f.sbin.directory?
s << "\nIf you need to have this software first in your PATH run:\n"
if f.bin.directory?
s << " #{Utils::Shell.prepend_path_in_profile(f.opt_bin.to_s)}\n"
end
if f.sbin.directory?
s << " #{Utils::Shell.prepend_path_in_profile(f.opt_sbin.to_s)}\n"
end
end
if f.lib.directory? || f.include.directory?
s << "\nFor compilers to find this software you may need to set:\n"
s << " LDFLAGS: -L#{f.opt_lib}\n" if f.lib.directory?
s << " CPPFLAGS: -I#{f.opt_include}\n" if f.include.directory?
if which("pkg-config", ENV["HOMEBREW_PATH"]) &&
((f.lib/"pkgconfig").directory? || (f.share/"pkgconfig").directory?)
s << "For pkg-config to find this software you may need to set:\n"
s << " PKG_CONFIG_PATH: #{f.opt_lib}/pkgconfig\n" if (f.lib/"pkgconfig").directory?
s << " PKG_CONFIG_PATH: #{f.opt_share}/pkgconfig\n" if (f.share/"pkgconfig").directory?
end
end
s << "\n"
end
def function_completion_caveats(shell)
return unless keg
return unless which(shell.to_s, ENV["HOMEBREW_PATH"])
completion_installed = keg.completion_installed?(shell)
functions_installed = keg.functions_installed?(shell)
return unless completion_installed || functions_installed
installed = []
installed << "completions" if completion_installed
installed << "functions" if functions_installed
root_dir = f.keg_only? ? f.opt_prefix : HOMEBREW_PREFIX
case shell
when :bash
<<~EOS
Bash completion has been installed to:
#{root_dir}/etc/bash_completion.d
EOS
when :zsh
<<~EOS
zsh #{installed.join(" and ")} have been installed to:
#{root_dir}/share/zsh/site-functions
EOS
when :fish
fish_caveats = "fish #{installed.join(" and ")} have been installed to:"
fish_caveats << "\n #{root_dir}/share/fish/vendor_completions.d" if completion_installed
fish_caveats << "\n #{root_dir}/share/fish/vendor_functions.d" if functions_installed
fish_caveats
end
end
def python_caveats
return unless keg
return unless keg.python_site_packages_installed?
s = nil
homebrew_site_packages = Language::Python.homebrew_site_packages
user_site_packages = Language::Python.user_site_packages "python"
pth_file = user_site_packages/"homebrew.pth"
instructions = <<~EOS.gsub(/^/, " ")
mkdir -p #{user_site_packages}
echo 'import site; site.addsitedir("#{homebrew_site_packages}")' >> #{pth_file}
EOS
if f.keg_only?
keg_site_packages = f.opt_prefix/"lib/python2.7/site-packages"
unless Language::Python.in_sys_path?("python", keg_site_packages)
s = <<~EOS
If you need Python to find bindings for this keg-only formula, run:
echo #{keg_site_packages} >> #{homebrew_site_packages/f.name}.pth
EOS
s += instructions unless Language::Python.reads_brewed_pth_files?("python")
end
return s
end
return if Language::Python.reads_brewed_pth_files?("python")
if !Language::Python.in_sys_path?("python", homebrew_site_packages)
s = <<~EOS
Python modules have been installed and Homebrew's site-packages is not
in your Python sys.path, so you will not be able to import the modules
this formula installed. If you plan to develop with these modules,
please run:
EOS
s += instructions
elsif keg.python_pth_files_installed?
s = <<~EOS
This formula installed .pth files to Homebrew's site-packages and your
Python isn't configured to process them, so you will not be able to
import the modules this formula installed. If you plan to develop
with these modules, please run:
EOS
s += instructions
end
s
end
def elisp_caveats
return if f.keg_only?
return unless keg
return unless keg.elisp_installed?
<<~EOS
Emacs Lisp files have been installed to:
#{HOMEBREW_PREFIX}/share/emacs/site-lisp/#{f.name}
EOS
end
def plist_caveats; end
def plist_path
destination = if f.plist_startup
"/Library/LaunchDaemons"
else
"~/Library/LaunchAgents"
end
plist_filename = if f.plist
f.plist_path.basename
else
File.basename Dir["#{keg}/*.plist"].first
end
destination_path = Pathname.new(File.expand_path(destination))
destination_path/plist_filename
end
end
require "extend/os/caveats"
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