wip: Add a RuntimeManager for mise

src/mstrap/runtime_managers/asdf.cr

@@ -1,10 +1,6 @@
 module MStrap
   module RuntimeManagers
     class ASDF < RuntimeManager
-      def asdf?
-        true
-      end
-
       def name : String
         "asdf"
       end

src/mstrap/runtime_managers/mise.cr

@@ -0,0 +1,57 @@
+module MStrap
+  module RuntimeManagers
+    class Mise < RuntimeManager
+      def name : String
+        "mise"
+      end
+
+      def current_version(language_name : String) : String?
+        `mise current #{language_name}`.chomp
+      end
+
+      # Returns whether the mise plugin has been installed for a language runtime
+      # or not
+      def has_plugin?(language_name : String) : Bool
+        `mise plugins ls --core --user`.chomp.split("\n").includes?(plugin_name(language_name))
+      end
+
+      def install_plugin(language_name : String) : Bool
+        cmd("mise plugins install #{plugin_name(language_name)}", quiet: true)
+      end
+
+      def install_version(language_name : String, version : String) : Bool
+        cmd("mise install #{plugin_name(language_name)} #{version}", quiet: true)
+      end
+
+      # Returns a list of the versions of the language runtime installed
+      # by mise.
+      def installed_versions(language_name : String) : Array(String)
+        mise_json_output = `mise ls -i #{plugin_name(language_name)} --json`
+        mise_installed = JSON.parse(mise_json_output)
+        mise_installed[language_name].as_a.map { |version| version["version"].as_s }
+      end
+
+      def latest_version(language_name : String) : String
+        `mise latest #{plugin_name(language_name)}`.chomp
+      end
+
+      # Name of the mise plugin for a particular language
+      def plugin_name(language_name : String) : String?
+        language_name
+      end
+
+      def set_global_version(language_name, version : String) : Bool
+        cmd "mise use -g #{plugin_name(language_name)}@#{version}", quiet: true
+      end
+
+      # :nodoc:
+      def version_env_var(language_name) : String
+        if asdf_plugin_name = plugin_name(language_name)
+          "MISE_#{asdf_plugin_name.upcase}_VERSION"
+        else
+          "MISE_#{language_name.upcase}_VERSION"
+        end
+      end
+    end
+  end
+end

src/mstrap/steps/init_step.cr

@@ -69,7 +69,7 @@ module MStrap
         if !File.exists?(Paths::BREWFILE) || force?
           logw "No Brewfile found or update requested with --force"
           log "--> Copying default Brewfile to #{Paths::BREWFILE}: "
-          brewfile_contents = Templates::Brewfile.new.to_s
+          brewfile_contents = Templates::Brewfile.new(runtime_manager).to_s
           File.write(Paths::BREWFILE, brewfile_contents)
           success "OK"
         end

src/mstrap/steps/shell_step.cr

@@ -46,7 +46,7 @@ module MStrap
       def bootstrap
         Dir.mkdir_p(MStrap::Paths::RC_DIR)
 
-        contents = Templates::EnvSh.new.to_s
+        contents = Templates::EnvSh.new(login_shell, runtime_manager).to_s
         File.write(env_sh_path, contents, perm: 0o600)
 
         exit_if_shell_changed!

src/mstrap/templates/Brewfile.cr

@@ -3,6 +3,11 @@ module MStrap
   module Templates
     class Brewfile
       ECR.def_to_s "#{__DIR__}/Brewfile.ecr"
+
+      getter :runtime_manager
+
+      def initialize(@runtime_manager : RuntimeManager)
+      end
     end
   end
 end

src/mstrap/templates/Brewfile.ecr

@@ -9,7 +9,11 @@ brew 'pkg-config'
 brew 'zlib'
 
 # Language runtime managers
+<% if runtime_manager.name == "asdf" %>
 brew 'asdf'
+<% elsif runtime_manager.name == "mise" %>
+brew 'mise'
+<% end %>
 
 if /darwin/ =~ RUBY_PLATFORM
   brew 'autoconf'

src/mstrap/templates/env.sh.ecr

@@ -1,18 +1,26 @@
-#!/bin/bash
+#!/usr/bin/env <%= shell_name %>
 
 export MSTRAP=true
 export MSTRAP_PROJECT_SOCKETS="<%= MStrap::Paths::PROJECT_SOCKETS %>"
 export MSTRAP_SRC_DIR="<%= MStrap::Paths::SRC_DIR %>"
 export MSTRAP_RC_DIR="<%= MStrap::Paths::RC_DIR %>"
 
 <%- if needs_homebrew_shellenv? %>
+# Load Homebrew
 test -d <%= MStrap::Paths::HOMEBREW_PREFIX %> && eval $(<%= MStrap::Paths::HOMEBREW_PREFIX %>/bin/brew shellenv)
 <% end -%>
 
+<% if runtime_manager.name == "asdf" %>
+# Activate asdf for language runtime version management
 if [ -d "$(brew --prefix asdf)" ]; then
   source "$(brew --prefix asdf)/libexec/asdf.sh"
 
   if [ ! -f "$HOME/.asdfrc" ]; then
     echo "legacy_version_file = yes\n" > "$HOME/.asdfrc"
   fi
 fi
+<% elsif runtime_manager.name == "mise" %>
+# Activate mise for language runtime version management
+export MISE_ASDF_COMPAT=1
+eval "$(mise activate <%= shell_name %>)"
+<% end %>

src/mstrap/templates/env_sh.cr

@@ -4,6 +4,12 @@ module MStrap
     class EnvSh
       ECR.def_to_s "#{__DIR__}/env.sh.ecr"
 
+      getter :shell_name
+      getter :runtime_manager
+
+      def initialize(@shell_name : String, @runtime_manager : RuntimeManager)
+      end
+
       def needs_homebrew_shellenv?
         {{ flag?(:linux) || (flag?(:aarch64) && flag?(:darwin)) }}
       end