Use rucksack to embed known runtimes in the binary

.gitignore

@@ -5,3 +5,5 @@
 tmp/
 export/
 secrets/
+.rucksack
+.rucksack.toc

shard.lock

@@ -40,11 +40,11 @@ shards:
     git: https://github.com/kemalcr/kemal.git
     version: 1.5.0
 
-  kemal-basic-auth:
-    git: https://github.com/kemalcr/kemal-basic-auth.git
-    version: 1.0.0
-
   radix:
     git: https://github.com/luislavena/radix.git
     version: 0.4.1
 
+  rucksack:
+    git: https://github.com/busyloop/rucksack.git
+    version: 2.0.0
+

shard.yml

@@ -28,3 +28,8 @@ dependencies:
     branch: add_exposed_ports
   kemal:
     github: kemalcr/kemal
+  rucksack:
+    github: busyloop/rucksack
+
+scripts:
+  postinstall: cat .rucksack >> bin/faaso

src/commands/new.cr

@@ -1,12 +1,26 @@
+require "rucksack"
+
 module Faaso
   module Commands
     # Creates a new empty funko out of a given runtime
     struct New
+      @@known : Array(String) = {{`find ./runtimes -type d -mindepth 1`.split('\n').reject(&.empty?)}}
+
       def run(options, folder)
-        if options["RUNTIME"].as(String) == "list"
-            Log.info {"Known runtimes:"} 
+        if options["-r"].as(String) == "list"
+          Log.info { "Crystal has some included runtimes:\n" }
+          @@known.each do |runtime|
+            Log.info { "  * #{Path[runtime].basename}" }
+          end
+          Log.info { "\nOr if you have your own, use a folder name" }
+          return 0
         end
       end
     end
   end
 end
+
+# Embed runtimes in the binary using rucksack
+{% for name in `find ./runtimes -type f`.split('\n') %}
+  rucksack({{name}})
+{% end %}

src/main.cr

@@ -46,12 +46,12 @@ doc = <<-DOC
 FaaSO CLI tool.
 
 Usage:
-  faaso build  FOLDER ...           [-v=<level>] [-l]
-  faaso export SOURCE DESTINATION   [-v=<level>]
-  faaso new -r <RUNTIME> FOLDER     [-v=<level>]
-  faaso scale  FUNKO [SCALE]        [-v=<level>] [-l]
-  faaso secret [-d|-a] FUNKO SECRET [-v=<level>] [-l]
-  faaso status FUNKO                [-v=<level>] [-l]
+  faaso build  FOLDER ...           [-v <level>] [-l]
+  faaso export SOURCE DESTINATION   [-v <level>]
+  faaso new -r runtime FOLDER       [-v <level>]
+  faaso scale FUNKO [SCALE]         [-v <level>] [-l]
+  faaso secret (-d|-a) FUNKO SECRET [-v <level>] [-l]
+  faaso status FUNKO                [-v <level>] [-l]
   faaso version
 
 Options:
@@ -59,8 +59,8 @@ Options:
   -d --delete      Delete
   -h --help        Show this screen
   -l --local       Run commands locally instead of against a FaaSO server
-  -r --runtime     Runtime for the new funko (use -r list for examples)
-  -v=level         Control the logging verbosity, 0 to 5 [default: 3]
+  -r runtime       Runtime for the new funko (use -r list for examples)
+  -v level         Control the logging verbosity, 0 to 5 [default: 3]
 DOC
 
 ans = Docopt.docopt(doc, ARGV)
@@ -72,8 +72,8 @@ when .fetch("build", false)
   Faaso::Commands::Build.new.run(ans, ans["FOLDER"].as(Array(String)))
 when .fetch("export", false)
   Faaso::Commands::Export.new.run(ans, ans["SOURCE"].as(String), ans["DESTINATION"].as(String))
-# when .fetch("new", false)
-#   Faaso::Commands::New.new.run(ans, ans["FOLDER"].as(String))
+when .fetch("new", false)
+  Faaso::Commands::New.new.run(ans, ans["FOLDER"].as(Array(String))[0])
 when .fetch("scale", false)
   Faaso::Commands::Scale.new.run(ans, ans["FUNKO"].as(String), ans["SCALE"])
 when .fetch("secret", false)