grep: add a test asserting that --perl-regexp dies when !PCRE
authorÆvar Arnfjörð Bjarmason <avarab@gmail.com>
Sat, 20 May 2017 21:42:09 +0000 (21:42 +0000)
committerJunio C Hamano <gitster@pobox.com>
Sat, 20 May 2017 23:25:37 +0000 (08:25 +0900)
commit9001c1920c9b812efc671bdc0c313d0a3418d8ee
tree4e627b666edb0746dc08168d6210db6b2a0eb0b8
parent9e3cbc59d5ec9d1b53c0c2e8c81fa2f3adca5696
grep: add a test asserting that --perl-regexp dies when !PCRE

Add a test asserting that when --perl-regexp (and -P for grep) is
given to git-grep & git-log that we die with an error.

In developing the PCRE v2 series I introduced a regression where -P
would (through control-flow fall-through) become synonymous with basic
POSIX matching. I.e. 'git grep -P '[\d]' would match "d" instead of
digits.

The entire test suite would still pass with this serious regression,
since everything that tested for --perl-regexp would be guarded by the
PCRE prerequisite, fix that blind-spot by adding tests under !PCRE
asserting that git must die when given --perl-regexp or -P.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t/t4202-log.sh
t/t7810-grep.sh