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# -*- mode: ruby; ruby-indent-level: 2; tab-width: 2 -*-
require 'pathname'
require 'fileutils'
require 'rdoc/erbio'
require 'rdoc/generator/markup'
##
# Darkfish RDoc HTML Generator
#
# $Id: darkfish.rb 52 2009-01-07 02:08:11Z deveiant $
#
# == Author/s
# * Michael Granger (ged@FaerieMUD.org)
#
# == Contributors
# * Mahlon E. Smith (mahlon@martini.nu)
# * Eric Hodel (drbrain@segment7.net)
#
# == License
#
# Copyright (c) 2007, 2008, Michael Granger. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# * Neither the name of the author/s, nor the names of the project's
# contributors may be used to endorse or promote products derived from this
# software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
class RDoc::Generator::Darkfish
RDoc::RDoc.add_generator self
include ERB::Util
# Path to this file's parent directory. Used to find templates and other
# resources.
GENERATOR_DIR = File.join 'rdoc', 'generator'
##
# Release Version
VERSION = '2'
##
# Description of this generator
DESCRIPTION = 'HTML generator, written by Michael Granger'
##
# Initialize a few instance variables before we start
def initialize options
@options = options
@template_dir = Pathname.new options.template_dir
@template_cache = {}
@files = nil
@classes = nil
@basedir = Pathname.pwd.expand_path
end
##
# The output directory
attr_reader :outputdir
##
# Output progress information if debugging is enabled
def debug_msg *msg
return unless $DEBUG_RDOC
$stderr.puts(*msg)
end
##
# Directory where generated class HTML files live relative to the output
# dir.
def class_dir
nil
end
##
# Directory where generated class HTML files live relative to the output
# dir.
def file_dir
nil
end
##
# Create the directories the generated docs will live in if they don't
# already exist.
def gen_sub_directories
@outputdir.mkpath
end
##
# Copy over the stylesheet into the appropriate place in the output
# directory.
def write_style_sheet
debug_msg "Copying static files"
options = { :verbose => $DEBUG_RDOC, :noop => @options.dry_run }
FileUtils.cp @template_dir + 'rdoc.css', '.', options
Dir[(@template_dir + "{js,images}/**/*").to_s].each do |path|
next if File.directory? path
next if File.basename(path) =~ /^\./
dst = Pathname.new(path).relative_path_from @template_dir
# I suck at glob
dst_dir = dst.dirname
FileUtils.mkdir_p dst_dir, options unless File.exist? dst_dir
FileUtils.cp @template_dir + path, dst, options
end
end
##
# Build the initial indices and output objects based on an array of TopLevel
# objects containing the extracted information.
def generate top_levels
@outputdir = Pathname.new(@options.op_dir).expand_path(@basedir)
@files = top_levels.sort
@classes = RDoc::TopLevel.all_classes_and_modules.sort
@methods = @classes.map { |m| m.method_list }.flatten.sort
@modsort = get_sorted_module_list(@classes)
# Now actually write the output
write_style_sheet
generate_index
generate_class_files
generate_file_files
rescue => e
debug_msg "%s: %s\n %s" % [
e.class.name, e.message, e.backtrace.join("\n ")
]
raise
end
protected
##
# Return a list of the documented modules sorted by salience first, then
# by name.
def get_sorted_module_list(classes)
nscounts = classes.inject({}) do |counthash, klass|
top_level = klass.full_name.gsub(/::.*/, '')
counthash[top_level] ||= 0
counthash[top_level] += 1
counthash
end
# Sort based on how often the top level namespace occurs, and then on the
# name of the module -- this works for projects that put their stuff into
# a namespace, of course, but doesn't hurt if they don't.
classes.sort_by do |klass|
top_level = klass.full_name.gsub( /::.*/, '' )
[nscounts[top_level] * -1, klass.full_name]
end.select do |klass|
klass.display?
end
end
##
# Generate an index page which lists all the classes which are documented.
def generate_index
template_file = @template_dir + 'index.rhtml'
return unless template_file.exist?
debug_msg "Rendering the index page..."
out_file = @basedir + @options.op_dir + 'index.html'
render_template template_file, out_file do |io| binding end
rescue => e
error = RDoc::Error.new \
"error generating index.html: #{e.message} (#{e.class})"
error.set_backtrace e.backtrace
raise error
end
##
# Generate a documentation file for each class
def generate_class_files
template_file = @template_dir + 'classpage.rhtml'
return unless template_file.exist?
debug_msg "Generating class documentation in #{@outputdir}"
current = nil
@classes.each do |klass|
current = klass
debug_msg " working on %s (%s)" % [klass.full_name, klass.path]
out_file = @outputdir + klass.path
# suppress 1.9.3 warning
rel_prefix = rel_prefix = @outputdir.relative_path_from(out_file.dirname)
svninfo = svninfo = self.get_svninfo(klass)
debug_msg " rendering #{out_file}"
render_template template_file, out_file do |io| binding end
end
rescue => e
error = RDoc::Error.new \
"error generating #{current.path}: #{e.message} (#{e.class})"
error.set_backtrace e.backtrace
raise error
end
##
# Generate a documentation file for each file
def generate_file_files
template_file = @template_dir + 'filepage.rhtml'
return unless template_file.exist?
debug_msg "Generating file documentation in #{@outputdir}"
out_file = nil
@files.each do |file|
out_file = @outputdir + file.path
debug_msg " working on %s (%s)" % [file.full_name, out_file]
# suppress 1.9.3 warning
rel_prefix = rel_prefix = @outputdir.relative_path_from(out_file.dirname)
debug_msg " rendering #{out_file}"
render_template template_file, out_file do |io| binding end
end
rescue => e
error =
RDoc::Error.new "error generating #{out_file}: #{e.message} (#{e.class})"
error.set_backtrace e.backtrace
raise error
end
##
# Return a string describing the amount of time in the given number of
# seconds in terms a human can understand easily.
def time_delta_string seconds
return 'less than a minute' if seconds < 60
return "#{seconds / 60} minute#{seconds / 60 == 1 ? '' : 's'}" if
seconds < 3000 # 50 minutes
return 'about one hour' if seconds < 5400 # 90 minutes
return "#{seconds / 3600} hours" if seconds < 64800 # 18 hours
return 'one day' if seconds < 86400 # 1 day
return 'about one day' if seconds < 172800 # 2 days
return "#{seconds / 86400} days" if seconds < 604800 # 1 week
return 'about one week' if seconds < 1209600 # 2 week
return "#{seconds / 604800} weeks" if seconds < 7257600 # 3 months
return "#{seconds / 2419200} months" if seconds < 31536000 # 1 year
return "#{seconds / 31536000} years"
end
# %q$Id: darkfish.rb 52 2009-01-07 02:08:11Z deveiant $"
SVNID_PATTERN = /
\$Id:\s
(\S+)\s # filename
(\d+)\s # rev
(\d{4}-\d{2}-\d{2})\s # Date (YYYY-MM-DD)
(\d{2}:\d{2}:\d{2}Z)\s # Time (HH:MM:SSZ)
(\w+)\s # committer
\$$
/x
##
# Try to extract Subversion information out of the first constant whose
# value looks like a subversion Id tag. If no matching constant is found,
# and empty hash is returned.
def get_svninfo klass
constants = klass.constants or return {}
constants.find { |c| c.value =~ SVNID_PATTERN } or return {}
filename, rev, date, time, committer = $~.captures
commitdate = Time.parse "#{date} #{time}"
return {
:filename => filename,
:rev => Integer(rev),
:commitdate => commitdate,
:commitdelta => time_delta_string(Time.now - commitdate),
:committer => committer,
}
end
##
# Load and render the erb template in the given +template_file+ and write
# it out to +out_file+.
#
# Both +template_file+ and +out_file+ should be Pathname-like objects.
#
# An io will be yielded which must be captured by binding in the caller.
def render_template template_file, out_file # :yield: io
template = template_for template_file
unless @options.dry_run then
debug_msg "Outputting to %s" % [out_file.expand_path]
out_file.dirname.mkpath
out_file.open 'w', 0644 do |io|
io.set_encoding @options.encoding if Object.const_defined? :Encoding
context = yield io
template_result template, context, template_file
end
else
context = yield nil
output = template_result template, context, template_file
debug_msg " would have written %d characters to %s" % [
output.length, out_file.expand_path
]
end
end
##
# Creates the result for +template+ with +context+. If an error is raised a
# Pathname +template_file+ will indicate the file where the error occurred.
def template_result template, context, template_file
template.filename = template_file.to_s
template.result context
rescue NoMethodError => e
raise RDoc::Error, "Error while evaluating %s: %s" % [
template_file.expand_path,
e.message,
], e.backtrace
end
##
# Retrieves a cache template for +file+, if present, or fills the cache.
def template_for file
template = @template_cache[file]
return template if template
klass = @options.dry_run ? ERB : RDoc::ERBIO
template = klass.new file.read, nil, '<>'
@template_cache[file] = template
template
end
end