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namespace :themes do
def plugin_dir
File.join(Rails.root,"vendor","plugins")
end
def theme_dir(theme_name)
File.join(plugin_dir, theme_name)
end
def install_theme_using_git(name, uri, verbose=false, options={})
mkdir_p(install_path = theme_dir(name))
Dir.chdir install_path do
init_cmd = "git init"
init_cmd += " -q" if options[:quiet] and not verbose
puts init_cmd if verbose
system(init_cmd)
base_cmd = "git pull --depth 1 #{uri}"
# Is there a tag for this version of Alaveteli?
usage_tag = "use-with-alaveteli-#{ALAVETELI_VERSION}"
# Query the remote repository passing flags for tags and
# a non-zero return code on failure to find the tag
if system("git ls-remote --exit-code --tags #{uri} #{usage_tag}")
# If we got a tag, pull that instead of HEAD
puts "Using tag #{usage_tag}" if verbose
base_cmd += " refs/tags/#{usage_tag}"
else
puts "No specific tag for this version: using HEAD" if verbose
end
base_cmd += " -q" if options[:quiet] and not verbose
puts base_cmd if verbose
if system(base_cmd)
puts "removing: .git .gitignore" if verbose
rm_rf %w(.git .gitignore)
else
rm_rf install_path
end
end
end
def uninstall(theme_name, verbose=false)
dir = theme_dir(theme_name)
if File.directory?(dir)
run_hook(theme_name, 'uninstall', verbose)
puts "Removing '#{dir}'" if verbose
rm_r dir
else
puts "Plugin doesn't exist: #{dir}"
end
end
def run_hook(theme_name, hook_name, verbose=false)
hook_file = File.join(theme_dir(theme_name), "#{hook_name}.rb")
if File.exist? hook_file
puts "Running #{hook_name} hook for #{theme_name}" if verbose
load hook_file
end
end
def installed?(theme_name)
File.directory?(theme_dir(theme_name))
end
def install_theme(theme_url, deprecated=false)
deprecation_string = deprecated ? " using deprecated THEME_URL" : ""
theme_name = File.basename(theme_url, '.git')
puts "Installing theme #{theme_name}#{deprecation_string} from #{theme_url}"
uninstall(theme_name, verbose) if installed?(theme_name)
install_theme_using_git(theme_name, theme_url, verbose)
run_hook(theme_name, 'install', verbose)
run_hook(theme_name, 'post_install', verbose)
end
desc "Install themes specified in the config file's THEME_URLS"
task :install => :environment do
verbose = true
theme_urls = MySociety::Config.get("THEME_URLS", [])
theme_urls.each{ |theme_url| install_theme(theme_url) }
if theme_url = MySociety::Config.get("THEME_URL", nil)
# Old version of the above, for backwards compatibility
install_theme(theme_url, deprecated=true)
end
end
end
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