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Versions: 16
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Contents
module Jekyll
module External
class << self
#
# Gems that, if installed, should be loaded.
# Usually contain subcommands.
#
def blessed_gems
%w(
jekyll-docs
jekyll-import
)
end
#
# Require a gem or file if it's present, otherwise silently fail.
#
# names - a string gem name or array of gem names
#
def require_if_present(names, &block)
Array(names).each do |name|
begin
require name
rescue LoadError
Jekyll.logger.debug "Couldn't load #{name}. Skipping."
block.call(name) if block
false
end
end
end
#
# Require a gem or gems. If it's not present, show a very nice error
# message that explains everything and is much more helpful than the
# normal LoadError.
#
# names - a string gem name or array of gem names
#
def require_with_graceful_fail(names)
Array(names).each do |name|
begin
Jekyll.logger.debug "Requiring:", "#{name}"
require name
rescue LoadError => e
Jekyll.logger.error "Dependency Error:", <<-MSG
Yikes! It looks like you don't have #{name} or one of its dependencies installed.
In order to use Jekyll as currently configured, you'll need to install this gem.
The full error message from Ruby is: '#{e.message}'
If you run into trouble, you can find helpful resources at http://jekyllrb.com/help/!
MSG
raise Jekyll::Errors::MissingDependencyException.new(name)
end
end
end
end
end
end
Version data entries
16 entries across 16 versions & 3 rubygems