kemal/src/kemal/cli.cr

56 lines
1.6 KiB
Crystal

require "option_parser"
module Kemal
# Handles all the initialization from the command line.
class CLI
def initialize(args)
@ssl_enabled = false
@key_file = ""
@cert_file = ""
@config = Kemal.config
if args
parse args
end
configure_ssl
end
private def parse(args : Array(String))
OptionParser.parse args do |opts|
opts.on("-b HOST", "--bind HOST", "Host to bind (defaults to 0.0.0.0)") do |host_binding|
@config.host_binding = host_binding
end
opts.on("-p PORT", "--port PORT", "Port to listen for connections (defaults to 3000)") do |opt_port|
@config.port = opt_port.to_i
end
opts.on("-s", "--ssl", "Enables SSL") do
@ssl_enabled = true
end
opts.on("--ssl-key-file FILE", "SSL key file") do |key_file|
@key_file = key_file
end
opts.on("--ssl-cert-file FILE", "SSL certificate file") do |cert_file|
@cert_file = cert_file
end
opts.on("-h", "--help", "Shows this help") do
puts opts
exit 0
end
@config.extra_options.try &.call(opts)
end
end
private def configure_ssl
{% if !flag?(:without_openssl) %}
if @ssl_enabled
abort "SSL Key Not Found" if !@key_file
abort "SSL Certificate Not Found" if !@cert_file
ssl = Kemal::SSL.new
ssl.key_file = @key_file.not_nil!
ssl.cert_file = @cert_file.not_nil!
Kemal.config.ssl = ssl.context
end
{% end %}
end
end
end