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post-setup.rb
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post-setup.rb
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#===============================================================================
# post-setup.rb - setup documentation
#===============================================================================
EXAMPLES = '.examples'
STD_URI = 'http:\/\/www.imagemagick.org'
STD_URI_RE = /"#{STD_URI}/
DONT_RUN = ['fonts.rb'] # never run these examples
ENTITY = Hash['&' => '&', '>' => '>', '<' => '<']
if defined?(Installer) && self.class == Installer
RUBYPROG = get_config('ruby-prog')
SRCDIR = curr_srcdir()
ALLOW_EXAMPLE_ERRORS = get_config('allow-example-errors') == 'yes'
BUILD_HTMLDOC = get_config('disable-htmldoc') != 'yes'
else
RUBYPROG = 'ruby'
SRCDIR = '.'
ALLOW_EXAMPLE_ERRORS = true
BUILD_HTMLDOC = true
end
#
# A set of example programs in a directory and the output image each example produces.
#
class ExampleSet
def initialize(of)
@status_quo = get_status_quo()
@errs = 0
begin
File.open(EXAMPLES) do |f|
@targets = Marshal.load(f)
end
rescue
@targets = Hash.new
@n = 0
@of = of
@first_time = true
else
@first_time = false
end
end
def persist
File.open(EXAMPLES, 'w') do |f|
Marshal.dump(@targets, f)
end
end
def targets(example)
@targets[example] || Array.new
end
def get_status_quo
sq = Dir["*"]
sq.delete_if { |entry| File.directory?(entry) }
end
def update_targets(example, new)
t = targets(example) + new
@targets[example] = t.uniq
end
def update_status_quo(example)
new_status_quo = get_status_quo()
new = new_status_quo - @status_quo
update_targets(example, new)
@status_quo = new_status_quo
end
def build(example)
cmd = "#{RUBYPROG} -I #{SRCDIR}/lib -I #{SRCDIR}/ext/RMagick #{example}"
print cmd
print " (example #{@n += 1} of #{@of})" if @first_time
puts
system cmd
if $? != 0 then
puts("post-setup.rb: #{example} example returned error code #{$?}")
@errs += 1 unless ALLOW_EXAMPLE_ERRORS
if @errs > 4
err(<<-END_EXFAIL
Too many examples failed. Search for "Help!" at
http://rmagick.rubyforge.org/install-faq.html.
END_EXFAIL
)
end
end
update_status_quo(example)
end
def update(example)
targets = targets(example)
up_to_date = ! targets.empty?
targets.each do |target|
up_to_date &&= File.exists?(target) && (File.stat(target) >= File.stat(example))
end
build(example) unless up_to_date
end
#
# print message and exit
#
def err(msg)
$stderr.puts "#{$0}: #{msg}"
exit 1
end
end
#
# Modify file lines via proc. If no lines changed, discard new version.
#
def filter(filename, backup=nil, &filter)
if ! File.writable? filename then
raise ArgumentError, "`#{filename}' is write-protected"
end
backup_name = filename + '.' + (backup || 'old')
File.rename(filename, backup_name)
changed = false
begin
File.open(filename, 'w') do |output|
File.foreach(backup_name) do |line|
old = line
line = filter.call(line)
output.puts(line)
changed ||= line != old
end
end
rescue
File.rename(backup_name, filename)
raise
end
if !changed
newname = filename + '.xxx'
File.rename(filename, newname)
File.rename(backup_name, filename)
File.unlink(newname)
elsif !backup
# Don't remove old copy if a backup extension was specified
File.unlink(backup_name) rescue nil
end
end
#
# Copy an example to the doc directory, wrap in HTML tags
#
def filetoHTML(file, html)
return if File.exists?(html) && File.stat(html) >= File.stat(file)
File.open(file) do |src|
File.open(html, 'w') do |dest|
dest.puts <<-END_EXHTMLHEAD
<!DOCTYPE public PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content="ex2html.rb" />
<meta http-equiv="Content-Type" content=
"text/html; charset=us-ascii" />
<link rel="stylesheet" type="text/css" href="css/popup.css" />
<title>RMagick example: #{file}</title>
</head>
<body>
<h1>#{file}</h1>
<div class="bodybox">
<div class="bodyfloat">
<pre>
END_EXHTMLHEAD
src.each do |line|
line.gsub!(/[&><]/) { |s| ENTITY[s] }
dest.puts(line)
end
dest.puts <<-END_EXHTMLTAIL
</pre>
</div>
</div>
<div id="close"><a href="javascript:window.close();">Close window</a></div>
</body>
</html>
END_EXHTMLTAIL
end
File.chmod(0644, html)
end
end
puts "setup.rb: entering post-setup phase..."
if BUILD_HTMLDOC
#
# Don't bother if we're in the sandbox
#
if File.exist? 'CVS/Entries'
puts "post-setup.rb: in CVS sandbox - stopping..."
exit
end
puts "post-setup.rb: setting up documentation..."
# We're in the source directory. Process the doc in-place. The post-install.rb
# script moves the generated documentation to the ultimate installation directories.
cwd = Dir.getwd()
Dir.chdir('doc') # need to work with 1.6.x, can't use block form
begin
# Step 1A: edit the shebang line in the examples
Dir.chdir('ex')
files = Dir['*.rb']
files.each do |file|
filter(file) { |line| line.sub(/\A\#!\s*\S*ruby\s/, '#!'+RUBYPROG+' ') }
# Step 1B: Make a copy of the example as HTML in the doc directory
filetoHTML(file, "../#{file}.html")
end
# Step 2: run the examples
examples = Dir['*.rb'].sort
examples -= DONT_RUN
es = ExampleSet.new(examples.length)
begin
examples.each { |example| es.update(example) }
ensure
es.persist
end
ensure
Dir.chdir(cwd)
end
else
puts "post-setup.rb: --disable-htmldoc specified. No documentation will be set up."
end
exit