ensure that no C source file uses TABs for indentation

* Makefile.maint (sc_TAB_in_indentation): New rule.

diff --git a/ChangeLog b/ChangeLog
index 36abf16747f4140e4cfeadab8f33f6b84db6c95d..2cbf05d3841de4770127d5d9ceea995abda439e8 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 Thu Apr 10 18:54:03 CEST 2008 Jim Meyering <meyering@redhat.com>
 
+       ensure that no C source file uses TABs for indentation
+       * Makefile.maint (sc_TAB_in_indentation): New rule.
+
        Convert TAB-based indentation in C sources to use only spaces.
        Done using this command (also includes .c.in and .h.in files):
        for i in $(g ls-files|grep -E '\.[ch](\.in)?$'|grep -v gnulib); do

diff --git a/Makefile.maint b/Makefile.maint
index a357d7470e63fc8823c40b5562ec983547ab2872..4e41134575c63acd34516f4f6f450d5b1c6d1b70 100644 (file)
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -287,6 +287,17 @@ sc_trailing_blank:
          { echo '$(ME): found trailing blank(s)'                       \
                1>&2; exit 1; } || :
 
+# Ensure that no C source file uses TABs for indentation.
+# Also match *.h.in files, to get libvirt.h.in.
+# Exclude files in gnulib, since they're imported.
+sc_TAB_in_indentation:
+       @grep -lE '^ *  ' /dev/null                                     \
+            $$($(VC_LIST_EXCEPT)                                       \
+               | grep -E '\.[ch](\.in)?$$'                             \
+               | grep -v '^gnulib/') &&                                \
+         { echo '$(ME): found TAB(s) use for indentation; use spaces'  \
+               1>&2; exit 1; } || :
+
 # Match lines like the following, but where there is only one space
 # between the options and the description:
 #   -D, --all-repeated[=delimit-method]  print all duplicate lines\n