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kconfig: warn no new line at end of file 

It would be nice to warn if a new line is missing at end of file.

We could do this by checkpatch.pl for arbitrary files, but new line
is rather essential as a statement terminator in Kconfig.

The warning message looks like this:

  kernel/Kconfig.preempt:60:warning: no new line at end of file

Currently, kernel/Kconfig.preempt is the only file with no new line
at end of file. Fix it.

I know there are some false negative cases. For example, no warning
is displayed when the last line contains some whitespaces/comments,
but no new line. Yet, this commit works well for most cases.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2018-12-11 20:00:51 +09:00
parent 0bcc547ec4
commit 723679339d
2 changed files with 5 additions and 1 deletions
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4
scripts/kconfig/zconf.l
View File

@ -261,6 +261,10 @@ n [A-Za-z0-9_-]
<<EOF>> { <<EOF>> {
BEGIN(INITIAL); BEGIN(INITIAL);
if (prev_token != T_EOL && prev_token != T_HELPTEXT)
fprintf(stderr, "%s:%d:warning: no new line at end of file\n",
current_file->name, yylineno);
if (current_file) { if (current_file) {
zconf_endfile(); zconf_endfile();
return T_EOL; return T_EOL;