feat(haskell): support stylish-haskell (#435)

* feat: add support for stylish-haskell

* refactor: use stdin instead of file

1 files changed, 10 insertions, 0 deletions

diff --git a/lua/conform/formatters/stylish-haskell.lua b/lua/conform/formatters/stylish-haskell.lua
new file mode 100644
index 0000000..be4f2e3
--- /dev/null
+++ b/lua/conform/formatters/stylish-haskell.lua
@@ -0,0 +1,10 @@
+---@type conform.FileFormatterConfig
+return {
+  meta = {
+    url = "https://github.com/haskell/stylish-haskell",
+    description = "Haskell code prettifier.",
+  },
+  command = "stylish-haskell",
+  args = {},
+  stdin = true,
+}