diff options
Diffstat (limited to 'edconf.lua')
| -rw-r--r-- | edconf.lua | 25 |
1 files changed, 24 insertions, 1 deletions
@@ -41,6 +41,16 @@ function insert_final_newline(file, path) end end +function strip_final_newline(file, path) + -- In theory, this would have a complexity of O(n) as well and could + -- thus be made optional via edconf_hooks_enabled. On the other hand, + -- this is probably a very rare edge case, so stripping all trailing + -- newline characters is probably safe enough. + while file:content(file.size-1, 1) == '\n' do + file:delete(file.size-1, 1) + end +end + function trim_trailing_whitespace(file, path) if not edconf_hooks_enabled then return end for i=1, #file.lines do @@ -107,7 +117,20 @@ OPTIONS = { end, insert_final_newline = function (value) - set_pre_save(insert_final_newline, value) + -- According to the editorconfig specification, insert_final_newline + -- false is supposed to mean stripping the final newline, if present. + -- See https://editorconfig-specification.readthedocs.io/#supported-pairs + -- + -- Quote: insert_final_newline Set to true ensure file ends with a + -- newline when saving and false to ensure it doesn’t. + -- + if value == "true" then + set_pre_save(insert_final_newline, "true") + set_pre_save(strip_final_newline, "false") + elseif value == "false" then + set_pre_save(strip_final_newline, "true") + set_pre_save(insert_final_newline, "false") + end end, trim_trailing_whitespace = function (value) |