add a basic config with parsing

config.yml

@@ -0,0 +1,5 @@
+projects:
+  - name: "project-1"
+    type: "git"
+    location: "local" # local or remote
+    path: "/path/to/project-1" # local path or remote url

src/cli.cr

@@ -2,14 +2,22 @@ require "option_parser"
 require "log"
 require "emoji"
 require "colorize"
+require "./models/config"
+require "./runway"
 
 module Runway
   module Cli
     def self.run
       opts = self.opts
 
       log = self.logger(opts[:log_level])
-      log.info { Emoji.emojize(":airplane: runway starting") }
+      log.info { Emoji.emojize(":book: loading runway configuration") }
+
+      log.debug { "attempting to load config from #{opts[:config_path]}"}
+      config = RunwayConfiguration.from_yaml(File.open(opts[:config_path]))
+      log.info { Emoji.emojize(":white_check_mark: loaded configuration successfully") }
+
+      Runway.start(log, config)
     end
 
     # Parse command line options

src/models/config.cr

@@ -0,0 +1,15 @@
+require "yaml"
+
+# https://crystal-lang.org/api/1.12.1/YAML/Serializable.html
+class RunwayConfiguration
+  include YAML::Serializable
+  property projects : Array(Project)
+end
+
+class Project
+  include YAML::Serializable
+  property name : String
+  property type : String
+  property location : String
+  property path : String
+end

src/runway.cr

@@ -1,3 +1,6 @@
-require "./cli"
-
-CLI.run
+module Runway
+  def self.start(log, config)
+    log.info { Emoji.emojize(":airplane: starting runway") }
+    log.info { "#{config. projects.size} #{config.projects.size == 1 ? "project" : "projects"} loaded" }
+  end
+end