make "make syntax-check" consistent with "git diff --check"

This makes "make syntax-check" fail when a version-controlled
file contains a trailing blank line.
* cfg.mk (sc_prohibit_trailing_blank_lines): New rule.
This commit is contained in:
Jim Meyering 2009-07-16 09:06:58 +02:00
parent 07613d2020
commit 08a2e796e8

9
cfg.mk
View File

@ -228,6 +228,15 @@ sc_libvirt_unmarked_diagnostics:
{ echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
exit 1; } || :
# Disallow trailing blank lines.
sc_prohibit_trailing_blank_lines:
@$(VC_LIST_EXCEPT) | xargs perl -ln -0777 -e \
'/\n\n+$$/ and print $$ARGV' > $@-t
@found=0; test -s $@-t && { found=1; cat $@-t 1>&2; \
echo '$(ME): found trailing blank line(s)' 1>&2; }; \
rm -f $@-t; \
test $$found = 0
# We don't use this feature of maint.mk.
prev_version_file = /dev/null