feat: add Swiftlint formatter (#484)

* adds swiftlint formatter

* update readme with link to swiftlint

1 files changed, 11 insertions, 0 deletions

diff --git a/lua/conform/formatters/swiftlint.lua b/lua/conform/formatters/swiftlint.lua
new file mode 100644
index 0000000..1a6bd6f
--- /dev/null
+++ b/lua/conform/formatters/swiftlint.lua
@@ -0,0 +1,11 @@
+---@type conform.FileFormatterConfig
+return {
+  meta = {
+    url = "https://github.com/realm/SwiftLint",
+    description = "A tool to enforce Swift style and conventions.",
+  },
+  command = "swiftlint",
+  stdin = true,
+  args = { "lint", "--use-stdin", "--fix", "--format" },
+  cwd = require("conform.util").root_file({ ".swiftlint.yml", "Package.swift" }),
+}