class PackageConfig
Constants
- IDENTIFIER_RE
- SEPARATOR
Attributes
msvc_syntax[RW]
paths[R]
Public Class Methods
clear_configure_args_cache()
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# File lib/pkg-config.rb, line 47 def clear_configure_args_cache @native_pkg_config = nil @native_pkg_config_prefix = nil @custom_override_variables = nil end
custom_override_variables()
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# File lib/pkg-config.rb, line 43 def custom_override_variables @custom_override_variables ||= with_config("override-variables", "") end
native_pkg_config()
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# File lib/pkg-config.rb, line 33 def native_pkg_config @native_pkg_config ||= guess_native_pkg_config end
native_pkg_config_prefix()
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# File lib/pkg-config.rb, line 38 def native_pkg_config_prefix @native_pkg_config_prefix ||= compute_native_pkg_config_prefix end
new(name, options={})
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# File lib/pkg-config.rb, line 139 def initialize(name, options={}) @name = name @options = options path = @options[:path] || ENV["PKG_CONFIG_PATH"] @paths = [path, guess_default_path].compact.join(SEPARATOR).split(SEPARATOR) @paths.unshift(*(@options[:paths] || [])) @paths = normalize_paths(@paths) @msvc_syntax = @options[:msvc_syntax] @variables = @declarations = nil override_variables = self.class.custom_override_variables @override_variables = parse_override_variables(override_variables) default_override_variables = @options[:override_variables] || {} @override_variables = default_override_variables.merge(@override_variables) end
Private Class Methods
compute_native_pkg_config_prefix()
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# File lib/pkg-config.rb, line 122 def compute_native_pkg_config_prefix pkg_config = native_pkg_config return nil unless pkg_config.absolute? pkg_config_prefix = pkg_config.parent.parent if File::ALT_SEPARATOR normalized_pkg_config_prefix = pkg_config_prefix.to_s.split(File::ALT_SEPARATOR).join(File::SEPARATOR) Pathname(normalized_pkg_config_prefix) else pkg_config_prefix end end
guess_native_pkg_config()
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# File lib/pkg-config.rb, line 62 def guess_native_pkg_config exeext = RbConfig::CONFIG["EXEEXT"] default_pkg_config = ENV["PKG_CONFIG"] || "pkg-config#{exeext}" pkg_config = with_config("pkg-config", default_pkg_config) pkg_config = Pathname.new(pkg_config) unless pkg_config.absolute? found_pkg_config = search_executable_from_path(pkg_config) pkg_config = found_pkg_config if found_pkg_config end unless pkg_config.absolute? found_pkg_config = search_pkg_config_by_dln_find_exe(pkg_config) pkg_config = found_pkg_config if found_pkg_config end pkg_config end
search_executable_from_path(name)
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# File lib/pkg-config.rb, line 78 def search_executable_from_path(name) (ENV["PATH"] || "").split(SEPARATOR).each do |path| try_name = Pathname(path) + name return try_name if try_name.executable? end nil end
search_pkg_config_by_dln_find_exe(pkg_config)
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# File lib/pkg-config.rb, line 86 def search_pkg_config_by_dln_find_exe(pkg_config) begin require "dl/import" rescue LoadError return nil end dln = Module.new dln.module_eval do if DL.const_defined?(:Importer) extend DL::Importer else extend DL::Importable end begin dlload RbConfig::CONFIG["LIBRUBY"] rescue RuntimeError return nil if $!.message == "unknown error" return nil if /: image not found\z/ =~ $!.message raise rescue DL::DLError return nil end begin extern "const char *dln_find_exe(const char *, const char *)" rescue DL::DLError return nil end end path = dln.dln_find_exe(pkg_config.to_s, nil) if path.nil? or path.size.zero? nil else Pathname(path.to_s) end end
with_config(config, default=nil)
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Calls superclass method
# File lib/pkg-config.rb, line 54 def with_config(config, default=nil) if defined?(super) super else default end end
Public Instance Methods
cflags()
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# File lib/pkg-config.rb, line 166 def cflags path_flags, other_flags = collect_cflags (other_flags + path_flags).join(" ") end
cflags_only_I()
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# File lib/pkg-config.rb, line 171 def cflags_only_I collect_cflags[0].join(" ") end
cflags_only_other()
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# File lib/pkg-config.rb, line 175 def cflags_only_other collect_cflags[1].join(" ") end
declaration(name)
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# File lib/pkg-config.rb, line 217 def declaration(name) parse_pc if @declarations.nil? expand_value(@declarations[name]) end
description()
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# File lib/pkg-config.rb, line 208 def description declaration("Description") end
exist?()
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# File lib/pkg-config.rb, line 154 def exist? not pc_path.nil? end
libs()
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# File lib/pkg-config.rb, line 179 def libs path_flags, other_flags = collect_libs (path_flags + other_flags).join(" ") end
libs_only_L()
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# File lib/pkg-config.rb, line 194 def libs_only_L collect_libs[0].find_all do |arg| if @msvc_syntax /\A\/libpath:/ =~ arg else /\A-L/ =~ arg end end.join(" ") end
libs_only_l()
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# File lib/pkg-config.rb, line 184 def libs_only_l collect_libs[1].find_all do |arg| if @msvc_syntax /\.lib\z/ =~ arg else /\A-l/ =~ arg end end.join(" ") end
pc_path()
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# File lib/pkg-config.rb, line 222 def pc_path @paths.each do |path| _pc_path = File.join(path, "#{@name}.pc") return _pc_path if File.exist?(_pc_path) end nil end
requires()
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# File lib/pkg-config.rb, line 158 def requires parse_requires(declaration("Requires")) end
requires_private()
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# File lib/pkg-config.rb, line 162 def requires_private parse_requires(declaration("Requires.private")) end
variable(name)
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# File lib/pkg-config.rb, line 212 def variable(name) parse_pc if @variables.nil? expand_value(@override_variables[name] || @variables[name]) end
version()
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# File lib/pkg-config.rb, line 204 def version declaration("Version") end
Private Instance Methods
all_required_packages()
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# File lib/pkg-config.rb, line 457 def all_required_packages (requires_private + requires.reverse).reject do |package| @name == package end.uniq end
collect_cflags()
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# File lib/pkg-config.rb, line 231 def collect_cflags cflags_set = [declaration("Cflags")] cflags_set += private_required_packages.collect do |package| self.class.new(package, @options).cflags end cflags_set += required_packages.collect do |package| self.class.new(package, @options).cflags end all_cflags = normalize_cflags(Shellwords.split(cflags_set.join(" "))) path_flags, other_flags = all_cflags.partition {|flag| /\A-I/ =~ flag} path_flags = normalize_path_flags(path_flags, "-I") path_flags = remove_duplicated_include_paths(path_flags) path_flags = path_flags.reject do |flag| flag == "-I/usr/include" end if @msvc_syntax path_flags = path_flags.collect do |flag| flag.gsub(/\A-I/, "/I") end end [path_flags, other_flags] end
collect_libs()
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# File lib/pkg-config.rb, line 291 def collect_libs all_libs = required_packages.collect do |package| self.class.new(package, @options).libs end all_libs = [declaration("Libs")] + all_libs all_flags = split_lib_flags(all_libs.join(" ")) path_flags, other_flags = all_flags.partition {|flag| /\A-L/ =~ flag} path_flags = normalize_path_flags(path_flags, "-L") path_flags = path_flags.reject do |flag| /\A-L\/usr\/lib(?:64|x32)?\z/ =~ flag end if @msvc_syntax path_flags = path_flags.collect do |flag| flag.gsub(/\A-L/, "/libpath:") end other_flags = other_flags.collect do |flag| if /\A-l/ =~ flag "#{$POSTMATCH}.lib" else flag end end end [path_flags, other_flags] end
expand_value(value)
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# File lib/pkg-config.rb, line 374 def expand_value(value) return nil if value.nil? value.gsub(/\$\{(#{IDENTIFIER_RE})\}/) do variable($1) end end
guess_default_path()
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# File lib/pkg-config.rb, line 381 def guess_default_path arch_depended_path = Dir.glob("/usr/lib/*/pkgconfig") default_paths = [ "/usr/local/lib64/pkgconfig", "/usr/local/libx32/pkgconfig", "/usr/local/lib/pkgconfig", "/usr/local/libdata/pkgconfig", "/usr/local/share/pkgconfig", "/opt/local/lib/pkgconfig", *arch_depended_path, "/usr/lib64/pkgconfig", "/usr/libx32/pkgconfig", "/usr/lib/pkgconfig", "/usr/libdata/pkgconfig", "/usr/X11R6/lib/pkgconfig", "/usr/X11R6/share/pkgconfig", "/usr/X11/lib/pkgconfig", "/opt/X11/lib/pkgconfig", "/usr/share/pkgconfig", ] libdir = ENV["PKG_CONFIG_LIBDIR"] default_paths.unshift(libdir) if libdir paths = [] pkg_config_prefix = self.class.native_pkg_config_prefix if pkg_config_prefix pkg_config_arch_depended_paths = Dir.glob((pkg_config_prefix + "lib/*/pkgconfig").to_s) paths.concat(pkg_config_arch_depended_paths) paths << (pkg_config_prefix + "lib64/pkgconfig").to_s paths << (pkg_config_prefix + "libx32/pkgconfig").to_s paths << (pkg_config_prefix + "lib/pkgconfig").to_s paths << (pkg_config_prefix + "libdata/pkgconfig").to_s end if /-darwin\d[\d\.]*\z/ =~ RUBY_PLATFORM and /\A(\d+\.\d+)/ =~ `sw_vers -productVersion` mac_os_version = $1 homebrew_repository_candidates = [] if pkg_config_prefix brew_path = pkg_config_prefix + "bin" + "brew" if brew_path.exist? escaped_brew_path = Shellwords.escape(brew_path.to_s) homebrew_repository = `#{escaped_brew_path} --repository`.chomp homebrew_repository_candidates << Pathname.new(homebrew_repository) else homebrew_repository_candidates << pkg_config_prefix + "Homebrew" homebrew_repository_candidates << pkg_config_prefix end else brew = self.class.__send__(:search_executable_from_path, "brew") if brew homebrew_repository = `brew --repository`.chomp homebrew_repository_candidates << Pathname(homebrew_repository) end end homebrew_repository_candidates.each do |candidate| path = candidate + "Library/Homebrew/os/mac/pkgconfig/#{mac_os_version}" paths << path.to_s if path.exist? end end paths.concat(default_paths) paths.join(SEPARATOR) end
normalize_cflags(cflags)
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# File lib/pkg-config.rb, line 270 def normalize_cflags(cflags) normalized_cflags = [] enumerator = cflags.to_enum begin loop do cflag = enumerator.next normalized_cflags << cflag case cflag when "-I" normalized_cflags << enumerator.next end end rescue StopIteration end normalized_cflags end
normalize_path_flags(path_flags, flag_option)
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# File lib/pkg-config.rb, line 254 def normalize_path_flags(path_flags, flag_option) return path_flags unless /-mingw32\z/ === RUBY_PLATFORM pkg_config_prefix = self.class.native_pkg_config_prefix return path_flags unless pkg_config_prefix mingw_dir = pkg_config_prefix.basename.to_s path_flags.collect do |path_flag| path = path_flag.sub(/\A#{Regexp.escape(flag_option)}/, "") path = path.sub(/\A\/#{Regexp.escape(mingw_dir)}/i) do pkg_config_prefix.to_s end "#{flag_option}#{path}" end end
normalize_paths(paths)
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# File lib/pkg-config.rb, line 463 def normalize_paths(paths) paths.reject do |path| path.empty? or !File.exist?(path) end end
parse_override_variables(override_variables)
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# File lib/pkg-config.rb, line 365 def parse_override_variables(override_variables) variables = {} override_variables.split(",").each do |variable| name, value = variable.split("=", 2) variables[name] = value end variables end
parse_pc()
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# File lib/pkg-config.rb, line 341 def parse_pc raise ".pc for #{@name} doesn't exist." unless exist? @variables = {} @declarations = {} File.open(pc_path) do |input| input.each_line do |line| line = line.gsub(/#.*/, '').strip next if line.empty? case line when /^(#{IDENTIFIER_RE})=/ @variables[$1] = $POSTMATCH.strip when /^(#{IDENTIFIER_RE}):/ @declarations[$1] = $POSTMATCH.strip end end end end
parse_requires(requires)
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# File lib/pkg-config.rb, line 359 def parse_requires(requires) return [] if requires.nil? requires_without_version = requires.gsub(/[<>]?=\s*[\d.a-zA-Z_-]+\s*/, '') requires_without_version.split(/[,\s]+/) end
private_required_packages()
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# File lib/pkg-config.rb, line 451 def private_required_packages requires_private.reject do |package| @name == package end.uniq end
remove_duplicated_include_paths(path_flags)
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# File lib/pkg-config.rb, line 287 def remove_duplicated_include_paths(path_flags) path_flags.uniq end
required_packages()
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# File lib/pkg-config.rb, line 445 def required_packages requires.reject do |package| @name == package end.uniq end
split_lib_flags(libs_command_line)
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# File lib/pkg-config.rb, line 317 def split_lib_flags(libs_command_line) all_flags = {} flags = [] in_option = false libs_command_line.gsub(/-([Ll]) /, '\1').split.each do |arg| if in_option flags << arg in_option = false else case arg when /-[lL]/ next if all_flags.key?(arg) all_flags[arg] = true flags << arg in_option = true else flags << arg end end end flags end