feat: pull ruby version from mise configuration (#339)

* docs: note that ruby version is sourced from mise

* feat: source ruby version from mise configuration

* test: test specific ruby version in integration tests, use mise-specified version

* test: snapshot update

core/__snapshots__/TestGenerateBuildPlanForExamples_ruby-vanilla_1.snap.json

@@ -20,7 +20,8 @@
      "/mise/installs",
      "/usr/local/bin/mise",
      "/etc/mise/config.toml",
-     "/root/.local/state/mise"
+     "/root/.local/state/mise",
+     "mise.toml"
     ],
     "step": "packages:mise"
    },
@@ -54,8 +55,8 @@
    ],
    "commands": [
     {
-     "cmd": "sh -c 'apt-get update \u0026\u0026 apt-get install -y libjemalloc-dev libyaml-dev'",
-     "customName": "install apt packages: libjemalloc-dev libyaml-dev"
+     "cmd": "sh -c 'apt-get update \u0026\u0026 apt-get install -y cargo libjemalloc-dev libyaml-dev rustc'",
+     "customName": "install apt packages: cargo libjemalloc-dev libyaml-dev rustc"
     }
    ],
    "inputs": [
@@ -73,6 +74,10 @@
     {
      "path": "/mise/shims"
     },
+    {
+     "dest": "mise.toml",
+     "src": "mise.toml"
+    },
     {
      "customName": "create mise config",
      "name": "mise.toml",

core/generate/mise_step_builder.go

@@ -17,7 +17,7 @@ import (
 const (
 	MisePackageStepName = "packages:mise"
 	// System-level config at /etc/mise/config.toml is auto-trusted by mise
-	MiseInstallCommand  = "mise install"
+	MiseInstallCommand = "mise install"
 )
 
 // represents a app-local mise package

core/providers/ruby/ruby.go

@@ -255,6 +255,8 @@ func (p *RubyProvider) InstallMisePackages(ctx *generate.GenerateContext, miseSt
 		miseStep.Version(ruby, gemfileVersion, "Gemfile")
 	}
 
+	miseStep.UseMiseVersions(ctx, []string{"ruby"})
+
 	miseStep.AddSupportingAptPackage("libyaml-dev")
 	miseStep.AddSupportingAptPackage("libjemalloc-dev")
 	version := p.getRubyVersion(ctx)

docs/src/content/docs/languages/ruby.md

@@ -19,7 +19,8 @@ The Ruby version is determined in the following order:
 - Set via the `RAILPACK_RUBY_VERSION` environment variable
 - Read from the `.ruby-version` file
 - Read from the `Gemfile` file
-- Defaults to `3.4.2`
+- Read from mise-compatible version files (`.tool-versions`, `mise.toml`)
+- Defaults to `3.4.6`
 
 ## Runtime Variables
 

examples/ruby-3/app.rb

@@ -4,3 +4,4 @@ else
   yjit = "not enabled"
 end
 puts "Hello from Ruby 3! YJIT is #{yjit}."
+puts "Ruby version: #{RUBY_VERSION}"

examples/ruby-3/test.json

@@ -1,5 +1,8 @@
 [
-  {
-    "expectedOutput": "Hello from Ruby 3! YJIT is enabled."
-  }
+    {
+        "expectedOutput": [
+            "Hello from Ruby 3! YJIT is enabled.",
+            "Ruby version: 3.2.1"
+        ]
+    }
 ]

examples/ruby-sinatra/app.rb

@@ -1,6 +1,7 @@
 require 'sinatra'
 
 puts "Hello from Sinatra"
+puts "Ruby version: #{RUBY_VERSION}"
 
 get '/' do
   'Choo Choo! Welcome to your Sinatra server 🚅'

examples/ruby-sinatra/test.json

@@ -1,12 +1,15 @@
 [
-  {
-    "expectedOutput": "Hello from Sinatra"
-  },
-  {
-    "httpCheck": {
-        "path": "/",
-        "expected": 200,
-        "internalPort": 4567
+    {
+        "expectedOutput": [
+            "Hello from Sinatra",
+            "Ruby version: 3.1.2"
+        ]
+    },
+    {
+        "httpCheck": {
+            "path": "/",
+            "expected": 200,
+            "internalPort": 4567
+        }
     }
-  }
 ]

examples/ruby-vanilla/app.rb

@@ -1 +1,2 @@
 puts "Hello from Ruby"
+puts "Ruby version: #{RUBY_VERSION}"

examples/ruby-vanilla/mise.toml

@@ -0,0 +1,2 @@
+[tools]
+ruby = "3.3.0"

examples/ruby-vanilla/test.json

@@ -1,5 +1,8 @@
 [
-  {
-    "expectedOutput": "Hello from Ruby"
-  }
+    {
+        "expectedOutput": [
+            "Hello from Ruby",
+            "Ruby version: 3.3.0"
+        ]
+    }
 ]