From cddd536e087a9fd3d2c9ea5b0a44e46c7b4b54c2 Mon Sep 17 00:00:00 2001
From: Steven Arcangeli <stevearc@stevearc.com>
Date: Mon, 28 Aug 2023 18:28:07 -0700
Subject: feat: range formatting

Should work the same as vim.lsp.buf.format(). Additionally, range
formatting is supported for *any* formatter. If the formatter doesn't
have native support for ranges, conform will do its best to only apply the
diffs that affect that range.
---
 lua/conform/formatters/prettier.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'lua/conform/formatters/prettier.lua')

diff --git a/lua/conform/formatters/prettier.lua b/lua/conform/formatters/prettier.lua
index 6f4bbfb..ea45ffb 100644
--- a/lua/conform/formatters/prettier.lua
+++ b/lua/conform/formatters/prettier.lua
@@ -1,5 +1,5 @@
 local util = require("conform.util")
----@type conform.FormatterConfig
+---@type conform.FileFormatterConfig
 return {
   meta = {
     url = "https://github.com/prettier/prettier",
@@ -7,6 +7,10 @@ return {
   },
   command = util.from_node_modules("prettier"),
   args = { "--stdin-filepath", "$FILENAME" },
+  range_args = function(ctx)
+    local start_offset, end_offset = util.get_offsets_from_range(ctx.buf, ctx.range)
+    return { "$FILENAME", "--range-start=" .. start_offset, "--range-end=" .. end_offset }
+  end,
   cwd = util.root_file({
     -- https://prettier.io/docs/en/configuration.html
     ".prettierrc",
-- 
cgit v1.2.3-70-g09d2