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Contents
module J1
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)
Array(names).each do |name|
begin
require name
rescue LoadError
J1.logger.debug "Couldn't load #{name}. Skipping."
yield(name) if block_given?
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
J1.logger.debug "Requiring:", name.to_s
require name
rescue LoadError => e
J1.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 https://jekyllrb.com/help/!
MSG
raise J1::Errors::MissingDependencyException, name
end
end
end
end
end
end
Version data entries
95 entries across 95 versions & 1 rubygems