Compare client/server versions and warn if different

src/commands/build.cr

@@ -17,6 +17,7 @@ module Faaso
             Log.info { "Building function... #{funko.name} in #{tmp_dir}" }
             funko.build tmp_dir
           else # Running against a server
+            Faaso.check_version
             # Create a tarball for the funko
             buf = IO::Memory.new
             Compress::Gzip::Writer.open(buf) do |gzip|

src/commands/scale.cr

@@ -27,6 +27,7 @@ module Faaso
       end
 
       def remote(options, name, scale) : Int32
+        Faaso.check_version
         if !scale
           Crest.get(
             "#{FAASO_SERVER}funkos/#{name}/scale/", \

src/commands/secret.cr

@@ -13,6 +13,7 @@ module Faaso
       end
 
       def remote(options, funko, name, secret) : Int32
+        Faaso.check_version
         if options["--add"]
           Crest.post(
             "#{FAASO_SERVER}secrets/",

src/commands/status.cr

@@ -26,6 +26,7 @@ module Faaso
       end
 
       def remote(options, name) : Int32
+        Faaso.check_version
         Crest.get(
           "#{FAASO_SERVER}funkos/#{name}/status/", \
              user: "admin", password: "admin") do |response|

src/daemon/main.cr

@@ -8,8 +8,16 @@ require "docr"
 require "kemal"
 require "uuid"
 
+macro version
+  "{{ `grep version shard.yml | cut -d: -f2` }}".strip()
+end
+
 get "/" do |env|
   env.redirect "/index.html"
 end
 
+get "/version" do
+  "#{version}"
+end
+
 Kemal.run

src/faaso.cr

@@ -28,9 +28,18 @@ module Faaso
     ))
   rescue ex : Docr::Errors::DockerAPIError
     raise ex if ex.status_code != 409 # Network already exists
-
   end
 
-  module Commands
+  # Compare version with server's
+  def self.check_version
+    server_version = Crest.get(
+      "#{FAASO_SERVER}version/", \
+         user: "admin", password: "admin").body
+
+    local_version = "#{version}"
+
+    if server_version != local_version
+      Log.warn { "Server is version #{server_version} and client is #{local_version}" }
+    end
   end
 end

src/main.cr

@@ -3,6 +3,10 @@ require "colorize"
 require "docopt"
 require "rucksack"
 
+macro version
+  "{{ `grep version shard.yml | cut -d: -f2` }}".strip()
+end
+
 struct LogFormat < Log::StaticFormatter
   @@colors = {
     "FATAL" => :red,
@@ -82,6 +86,8 @@ when .fetch("secret", false)
   status = Faaso::Commands::Secret.new.run(ans, ans["FUNKO"].as(String), ans["SECRET"].as(String))
 when .fetch("status", false)
   status = Faaso::Commands::Status.new.run(ans, ans["FUNKO"].as(String))
+when .fetch("version", false)
+  Log.info { "#{version}" }
 end
 
 exit(status)