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-rw-r--r--diff.c4
-rwxr-xr-xt/t4209-log-pickaxe.sh16
2 files changed, 20 insertions, 0 deletions
diff --git a/diff.c b/diff.c
index 019fb893a7..c89c15d98e 100644
--- a/diff.c
+++ b/diff.c
@@ -5493,6 +5493,8 @@ static int diff_opt_pickaxe_regex(const struct option *opt,
BUG_ON_OPT_NEG(unset);
options->pickaxe = arg;
options->pickaxe_opts |= DIFF_PICKAXE_KIND_G;
+ if (arg && !*arg)
+ return error(_("-G requires a non-empty argument"));
return 0;
}
@@ -5504,6 +5506,8 @@ static int diff_opt_pickaxe_string(const struct option *opt,
BUG_ON_OPT_NEG(unset);
options->pickaxe = arg;
options->pickaxe_opts |= DIFF_PICKAXE_KIND_S;
+ if (arg && !*arg)
+ return error(_("-S requires a non-empty argument"));
return 0;
}
diff --git a/t/t4209-log-pickaxe.sh b/t/t4209-log-pickaxe.sh
index a675ace081..0e2f80a268 100755
--- a/t/t4209-log-pickaxe.sh
+++ b/t/t4209-log-pickaxe.sh
@@ -93,6 +93,22 @@ test_expect_success 'usage: --no-pickaxe-regex' '
test_cmp expect actual
'
+test_expect_success 'usage: -G and -S with empty argument' '
+ cat >expect <<-\EOF &&
+ error: -S requires a non-empty argument
+ EOF
+
+ test_expect_code 129 git log -S "" 2>actual &&
+ test_cmp expect actual &&
+
+ cat >expect <<-\EOF &&
+ error: -G requires a non-empty argument
+ EOF
+
+ test_expect_code 129 git log -G "" 2>actual &&
+ test_cmp expect actual
+'
+
test_log expect_initial --grep initial
test_log expect_nomatch --grep InItial
test_log_icase expect_initial --grep InItial