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# We handle the parsing of options, and subsequently as a singleton
# object to be queried for option values
require "rdoc/ri/ri_paths"
class Options
require 'singleton'
require 'getoptlong'
include Singleton
# files matching this pattern will be excluded
attr_accessor :exclude
# the name of the output directory
attr_accessor :op_dir
# the name to use for the output
attr_reader :op_name
# include private and protected methods in the
# output
attr_accessor :show_all
# name of the file, class or module to display in
# the initial index page (if not specified
# the first file we encounter is used)
attr_accessor :main_page
# merge into classes of the name name when generating ri
attr_reader :merge
# Don't display progress as we process the files
attr_reader :quiet
# description of the output generator (set with the <tt>-fmt</tt>
# option
attr_accessor :generator
# and the list of files to be processed
attr_reader :files
# array of directories to search for files to satisfy an :include:
attr_reader :rdoc_include
# title to be used out the output
#attr_writer :title
# template to be used when generating output
attr_reader :template
# should diagrams be drawn
attr_reader :diagram
# should we draw fileboxes in diagrams
attr_reader :fileboxes
# include the '#' at the front of hyperlinked instance method names
attr_reader :show_hash
# image format for diagrams
attr_reader :image_format
# character-set
attr_reader :charset
# should source code be included inline, or displayed in a popup
attr_reader :inline_source
# should the output be placed into a single file
attr_reader :all_one_file
# the number of columns in a tab
attr_reader :tab_width
# include line numbers in the source listings
attr_reader :include_line_numbers
# pattern for additional attr_... style methods
attr_reader :extra_accessors
attr_reader :extra_accessor_flags
# URL of stylesheet
attr_reader :css
# URL of web cvs frontend
attr_reader :webcvs
# Are we promiscuous about showing module contents across
# multiple files
attr_reader :promiscuous
# scan newer sources than the flag file if true.
attr_reader :force_update
module OptionList
OPTION_LIST = [
[ "--accessor", "-A", "accessorname[,..]",
"comma separated list of additional class methods\n" +
"that should be treated like 'attr_reader' and\n" +
"friends. Option may be repeated. Each accessorname\n" +
"may have '=text' appended, in which case that text\n" +
"appears where the r/w/rw appears for normal accessors."],
[ "--all", "-a", nil,
"include all methods (not just public)\nin the output" ],
[ "--charset", "-c", "charset",
"specifies HTML character-set" ],
[ "--debug", "-D", nil,
"displays lots on internal stuff" ],
[ "--diagram", "-d", nil,
"Generate diagrams showing modules and classes.\n" +
"You need dot V1.8.6 or later to use the --diagram\n" +
"option correctly. Dot is available from\n"+
"http://www.research.att.com/sw/tools/graphviz/" ],
[ "--exclude", "-x", "pattern",
"do not process files or directories matching\n" +
"pattern. Files given explicitly on the command\n" +
"line will never be excluded." ],
[ "--extension", "-E", "new=old",
"Treat files ending with .new as if they ended with\n" +
".old. Using '-E cgi=rb' will cause xxx.cgi to be\n" +
"parsed as a Ruby file"],
[ "--fileboxes", "-F", nil,
"classes are put in boxes which represents\n" +
"files, where these classes reside. Classes\n" +
"shared between more than one file are\n" +
"shown with list of files that sharing them.\n" +
"Silently discarded if --diagram is not given\n" +
"Experimental." ],
[ "--force-update", "-U", nil,
"forces to scan all sources even if newer than\n" +
"the flag file." ],
[ "--fmt", "-f", "format name",
"set the output formatter (see below)" ],
[ "--help", "-h", nil,
"you're looking at it" ],
[ "--help-output", "-O", nil,
"explain the various output options" ],
[ "--image-format", "-I", "gif/png/jpg/jpeg",
"Sets output image format for diagrams. Can\n" +
"be png, gif, jpeg, jpg. If this option is\n" +
"omitted, png is used. Requires --diagram." ],
[ "--include", "-i", "dir[,dir...]",
"set (or add to) the list of directories\n" +
"to be searched when satisfying :include:\n" +
"requests. Can be used more than once." ],
[ "--inline-source", "-S", nil,
"Show method source code inline, rather\n" +
"than via a popup link" ],
[ "--line-numbers", "-N", nil,
"Include line numbers in the source code" ],
[ "--main", "-m", "name",
"'name' will be the initial page displayed" ],
[ "--merge", "-M", nil,
"when creating ri output, merge processed classes\n" +
"into previously documented classes of the name name"],
[ "--one-file", "-1", nil,
"put all the output into a single file" ],
[ "--op", "-o", "dir",
"set the output directory" ],
[ "--opname", "-n", "name",
"Set the 'name' of the output. Has no\n" +
"effect for HTML." ],
[ "--promiscuous", "-p", nil,
"When documenting a file that contains a module\n" +
"or class also defined in other files, show\n" +
"all stuff for that module/class in each files\n" +
"page. By default, only show stuff defined in\n" +
"that particular file." ],
[ "--quiet", "-q", nil,
"don't show progress as we parse" ],
[ "--ri", "-r", nil,
"generate output for use by 'ri.' The files are\n" +
"stored in the '.rdoc' directory under your home\n"+
"directory unless overridden by a subsequent\n" +
"--op parameter, so no special privileges are needed." ],
[ "--ri-site", "-R", nil,
"generate output for use by 'ri.' The files are\n" +
"stored in a site-wide directory, making them accessible\n"+
"to others, so special privileges are needed." ],
[ "--ri-system", "-Y", nil,
"generate output for use by 'ri.' The files are\n" +
"stored in a system-level directory, making them accessible\n"+
"to others, so special privileges are needed. This option\n"+
"is intended to be used during Ruby installations" ],
[ "--show-hash", "-H", nil,
"A name of the form #name in a comment\n" +
"is a possible hyperlink to an instance\n" +
"method name. When displayed, the '#' is\n" +
"removed unless this option is specified" ],
[ "--style", "-s", "stylesheet url",
"specifies the URL of a separate stylesheet." ],
[ "--tab-width", "-w", "n",
"Set the width of tab characters (default 8)"],
[ "--template", "-T", "template name",
"Set the template used when generating output" ],
[ "--title", "-t", "text",
"Set 'txt' as the title for the output" ],
[ "--version", "-v", nil,
"display RDoc's version" ],
[ "--webcvs", "-W", "url",
"Specify a URL for linking to a web frontend\n" +
"to CVS. If the URL contains a '\%s', the\n" +
"name of the current file will be substituted;\n" +
"if the URL doesn't contain a '\%s', the\n" +
"filename will be appended to it." ],
]
def OptionList.options
OPTION_LIST.map do |long, short, arg,|
[ long,
short,
arg ? GetoptLong::REQUIRED_ARGUMENT : GetoptLong::NO_ARGUMENT
]
end
end
def OptionList.strip_output(text)
text =~ /^\s+/
leading_spaces = $&
text.gsub!(/^#{leading_spaces}/, '')
$stdout.puts text
end
# Show an error and exit
def OptionList.error(msg)
$stderr.puts
$stderr.puts msg
$stderr.puts "\nFor help on options, try 'rdoc --help'\n\n"
exit 1
end
# Show usage and exit
def OptionList.usage(generator_names)
puts
puts(VERSION_STRING)
puts
name = File.basename($0)
OptionList.strip_output(<<-EOT)
Usage:
#{name} [options] [names...]
Files are parsed, and the information they contain
collected, before any output is produced. This allows cross
references between all files to be resolved. If a name is a
directory, it is traversed. If no names are specified, all
Ruby files in the current directory (and subdirectories) are
processed.
Options:
EOT
OPTION_LIST.each do |long, short, arg, desc|
opt = sprintf("%20s", "#{long}, #{short}")
oparg = sprintf("%-7s", arg)
print "#{opt} #{oparg}"
desc = desc.split("\n")
if arg.nil? || arg.length < 7
puts desc.shift
else
puts
end
desc.each do |line|
puts(" "*28 + line)
end
puts
end
puts "\nAvailable output formatters: " +
generator_names.sort.join(', ') + "\n\n"
puts "For information on where the output goes, use\n\n"
puts " rdoc --help-output\n\n"
exit 0
end
def OptionList.help_output
OptionList.strip_output(<<-EOT)
How RDoc generates output depends on the output formatter being
used, and on the options you give.
- HTML output is normally produced into a number of separate files
(one per class, module, and file, along with various indices).
These files will appear in the directory given by the --op
option (doc/ by default).
- XML output by default is written to standard output. If a
--opname option is given, the output will instead be written
to a file with that name in the output directory.
- .chm files (Windows help files) are written in the --op directory.
If an --opname parameter is present, that name is used, otherwise
the file will be called rdoc.chm.
For information on other RDoc options, use "rdoc --help".
EOT
exit 0
end
end
# Parse command line options. We're passed a hash containing
# output generators, keyed by the generator name
def parse(argv, generators)
old_argv = ARGV.dup
begin
ARGV.replace(argv)
@op_dir = "doc"
@op_name = nil
@show_all = false
@main_page = nil
@marge = false
@exclude = []
@quiet = false
@generator_name = 'html'
@generator = generators[@generator_name]
@rdoc_include = []
@title = nil
@template = nil
@diagram = false
@fileboxes = false
@show_hash = false
@image_format = 'png'
@inline_source = false
@all_one_file = false
@tab_width = 8
@include_line_numbers = false
@extra_accessor_flags = {}
@promiscuous = false
@force_update = false
@css = nil
@webcvs = nil
@charset = case $KCODE
when /^S/i
'Shift_JIS'
when /^E/i
'EUC-JP'
else
'iso-8859-1'
end
accessors = []
go = GetoptLong.new(*OptionList.options)
go.quiet = true
go.each do |opt, arg|
case opt
when "--all" then @show_all = true
when "--charset" then @charset = arg
when "--debug" then $DEBUG = true
when "--exclude" then @exclude << Regexp.new(arg)
when "--inline-source" then @inline_source = true
when "--line-numbers" then @include_line_numbers = true
when "--main" then @main_page = arg
when "--merge" then @merge = true
when "--one-file" then @all_one_file = @inline_source = true
when "--op" then @op_dir = arg
when "--opname" then @op_name = arg
when "--promiscuous" then @promiscuous = true
when "--quiet" then @quiet = true
when "--show-hash" then @show_hash = true
when "--style" then @css = arg
when "--template" then @template = arg
when "--title" then @title = arg
when "--webcvs" then @webcvs = arg
when "--accessor"
arg.split(/,/).each do |accessor|
if accessor =~ /^(\w+)(=(.*))?$/
accessors << $1
@extra_accessor_flags[$1] = $3
end
end
when "--diagram"
check_diagram
@diagram = true
when "--fileboxes"
@fileboxes = true if @diagram
when "--fmt"
@generator_name = arg.downcase
setup_generator(generators)
when "--help"
OptionList.usage(generators.keys)
when "--help-output"
OptionList.help_output
when "--image-format"
if ['gif', 'png', 'jpeg', 'jpg'].include?(arg)
@image_format = arg
else
raise GetoptLong::InvalidOption.new("unknown image format: #{arg}")
end
when "--include"
@rdoc_include.concat arg.split(/\s*,\s*/)
when "--ri", "--ri-site", "--ri-system"
@generator_name = "ri"
@op_dir = case opt
when "--ri" then RI::Paths::HOMEDIR
when "--ri-site" then RI::Paths::SITEDIR
when "--ri-system" then RI::Paths::SYSDIR
else fail opt
end
setup_generator(generators)
when "--tab-width"
begin
@tab_width = Integer(arg)
rescue
$stderr.puts "Invalid tab width: '#{arg}'"
exit 1
end
when "--extension"
new, old = arg.split(/=/, 2)
OptionList.error("Invalid parameter to '-E'") unless new && old
unless RDoc::ParserFactory.alias_extension(old, new)
OptionList.error("Unknown extension .#{old} to -E")
end
when "--force-update"
@force_update = true
when "--version"
puts VERSION_STRING
exit
end
end
@files = ARGV.dup
@rdoc_include << "." if @rdoc_include.empty?
if @exclude.empty?
@exclude = nil
else
@exclude = Regexp.new(@exclude.join("|"))
end
check_files
# If no template was specified, use the default
# template for the output formatter
@template ||= @generator_name
# Generate a regexp from the accessors
unless accessors.empty?
re = '^(' + accessors.map{|a| Regexp.quote(a)}.join('|') + ')$'
@extra_accessors = Regexp.new(re)
end
rescue GetoptLong::InvalidOption, GetoptLong::MissingArgument => error
OptionList.error(error.message)
ensure
ARGV.replace(old_argv)
end
end
def title
@title ||= "RDoc Documentation"
end
# Set the title, but only if not already set. This means that a title set from
# the command line trumps one set in a source file
def title=(string)
@title ||= string
end
private
# Set up an output generator for the format in @generator_name
def setup_generator(generators)
@generator = generators[@generator_name]
if !@generator
OptionList.error("Invalid output formatter")
end
if @generator_name == "xml"
@all_one_file = true
@inline_source = true
end
end
# Check that the right version of 'dot' is available.
# Unfortuately this doesn't work correctly under Windows NT,
# so we'll bypass the test under Windows
def check_diagram
return if RUBY_PLATFORM =~ /mswin|cygwin|mingw|bccwin/
ok = false
ver = nil
IO.popen("dot -V 2>&1") do |io|
ver = io.read
if ver =~ /dot.+version(?:\s+gviz)?\s+(\d+)\.(\d+)/
ok = ($1.to_i > 1) || ($1.to_i == 1 && $2.to_i >= 8)
end
end
unless ok
if ver =~ /^dot.+version/
$stderr.puts "Warning: You may need dot V1.8.6 or later to use\n",
"the --diagram option correctly. You have:\n\n ",
ver,
"\nDiagrams might have strange background colors.\n\n"
else
$stderr.puts "You need the 'dot' program to produce diagrams.",
"(see http://www.research.att.com/sw/tools/graphviz/)\n\n"
exit
end
# exit
end
end
# Check that the files on the command line exist
def check_files
@files.each do |f|
stat = File.stat f rescue error("File not found: #{f}")
error("File '#{f}' not readable") unless stat.readable?
end
end
def error(str)
$stderr.puts str
exit(1)
end
end
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