diff options
Diffstat (limited to 'lua/conform')
| -rw-r--r-- | lua/conform/runner.lua | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lua/conform/runner.lua b/lua/conform/runner.lua index 62d158e..0f4604d 100644 --- a/lua/conform/runner.lua +++ b/lua/conform/runner.lua @@ -169,6 +169,13 @@ M.apply_format = function(bufnr, original_lines, new_lines, range, only_apply_ra table.remove(original_lines) table.remove(new_lines) + -- Abort if output is empty but input is not (i.e. has some non-whitespace characters). + -- This is to hack around oddly behaving formatters (e.g black outputs nothing for excluded files). + if new_text:match("^%s*$") and not original_text:match("^%s*$") then + log.warn("Aborting because a formatter returned empty output for buffer %s", bufname) + return + end + log.trace("Comparing lines %s and %s", original_lines, new_lines) local indices = vim.diff(original_text, new_text, { result_type = "indices", |