Commit 4af73fb

@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+module Elelem
+  module Verifiers
+    SYNTAX = {
+      ".rb" => "ruby -c %{path}",
+      ".py" => "python -m py_compile %{path}",
+      ".go" => "go vet %{path}",
+      ".rs" => "cargo check --quiet",
+      ".ts" => "npx tsc --noEmit %{path}",
+      ".js" => "node --check %{path}",
+    }.freeze
+
+    def self.for(path)
+      return [] unless path
+
+      cmds = []
+      ext = File.extname(path)
+      cmds << (SYNTAX[ext] % { path: path }) if SYNTAX[ext]
+      cmds << test_runner
+      cmds.compact
+    end
+
+    def self.test_runner
+      %w[bin/test script/test].find { |s| File.executable?(s) }
+    end
+  end
+
+  Plugins.register(:verify) do |toolbox|
+    toolbox.after("write") do |_, result|
+      next if result[:error]
+
+      result[:verify] = {}
+      Verifiers.for(result[:path]).each do |cmd|
+        $stdout.puts "\n  → verify: #{cmd}"
+        v = Elelem.sh("bash", args: ["-c", cmd]) { |x| $stdout.print(x) }
+        result[:verify][cmd] = v
+        break if v[:exit_status] != 0
+      end
+    end
+  end
+end