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#!/usr/bin/env ruby
# -*- encoding : utf-8 -*-
# A simple script to swap around your Alaveteli themes when you're
# hacking on Alaveteli. By default this assumes that you have an
# 'alaveteli-themes' directory at the same level as your alaveteli git
# repository, e.g.:
#
# alaveteli
# ├── app
# ├── cache
# ...
# └── vendor
# alaveteli-themes/
# ├── alavetelitheme
# ├── asktheeu-theme
# ├── chiediamo-theme
# ├── ipvtheme
# ├── queremossabertheme
# ├── tuderechoasaber-theme
# ├── whatdotheyknow-theme
# └── yourrighttoknow
#
# However, you can override the location of your themes directory with
# the environment variable ALAVETELI_THEMES_DIR.
#
# You need to have a corresponding general.yml file called, for example:
#
# config/general-whatdotheyknow-theme.yml
# config/general-yourrighttoknow.yml
require 'tempfile'
$no_theme_name = 'none'
theme_directory = ENV['ALAVETELI_THEMES_DIR']
alaveteli_directory = File.expand_path(File.join(File.dirname(__FILE__),
".."))
unless theme_directory
theme_directory = File.expand_path File.join(alaveteli_directory,
'..',
'alaveteli-themes')
end
unless File.exists? theme_directory
STDERR.puts "The theme directory '#{theme_directory}' didn't exist."
exit 1
end
def show_themes
$available_themes.each do |theme_name|
STDERR.puts " #{theme_name}"
end
end
# Assume that any directory directly under theme_directory is a theme:
$available_themes = Dir.entries(theme_directory).find_all do |local_theme_name|
next if [".", ".."].index local_theme_name
next unless local_theme_name
full_path = File.join theme_directory, local_theme_name
next unless File.directory? full_path
next unless File.directory? File.join(full_path, '.git')
local_theme_name
end.sort
$available_themes.unshift $no_theme_name
if $available_themes.empty?
STDERR.puts "There were no theme directories found in '#{theme_directory}'"
exit
end
if ARGV.length == 1
requested_theme = ARGV[0]
else
STDERR.puts "Usage: #{$0} <THEME-NAME>"
show_themes
exit 1
end
unless $available_themes.include? requested_theme
STDERR.puts "Theme '#{requested_theme}' not found in '#{theme_directory}'"
STDERR.puts "Available themes:"
show_themes
exit 1
end
full_theme_path = File.join theme_directory, requested_theme
config_directory = File.join alaveteli_directory, 'config'
general_filename = File.join config_directory, "general.yml"
theme_filename = File.join config_directory, "general-#{requested_theme}.yml"
if File.exists?(general_filename) && ! (File.symlink? general_filename)
STDERR.puts "'#{general_filename}' exists, but isn't a symlink"
exit 1
end
unless File.exists? theme_filename
STDERR.puts "'#{theme_filename}' didn't exist"
exit 1
end
def symlink target, link_directory, link_name
tmp = Tempfile.new link_name, link_directory
if system("ln", "-sfn", target, tmp.path)
full_link_name = File.join(link_directory, link_name)
begin
File.rename tmp.path, full_link_name
rescue Errno::EISDIR
STDERR.puts "Couldn't overwrite #{full_link_name} since it's a directory"
exit 1
end
else
STDERR.puts "Failed to create a symlink from #{tmp.path} to #{target}"
exit 1
end
end
symlink(File.basename(theme_filename),
config_directory,
"general.yml")
public_directory = File.join(alaveteli_directory, 'public')
if requested_theme == $no_theme_name
File.unlink File.join(public_directory, 'alavetelitheme')
else
symlink(File.join(full_theme_path, 'public'),
public_directory,
'alavetelitheme')
symlink(full_theme_path,
File.join(alaveteli_directory, 'lib', 'themes'),
requested_theme)
end
STDERR.puts """Switched to #{requested_theme}!
You will need to:
1. restart any development server you have running.
2. run: bundle exec rake assets:clean
3. run: bundle exec rake assets:precompile (if running in production mode)
4. run: bundle exec rake assets:link_non_digest (if running in production mode)
"""