Neither the --pickaxe-all documentation nor --find-object's has ever
suggested that you can combine the two. See f506b8e8b5 (git log/diff:
add -G<regexp> that greps in the patch text, 2010-08-23) and
15af58c1ad (diffcore: add a pickaxe option to find a specific blob,
2018-01-04).
But we've silently tolerated it, which makes the logic in
diffcore_pickaxe() harder to reason about. Let's assert that we won't
have the two combined.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
diff.c | 3 +++
diff.h | 2 ++
t/t4209-log-pickaxe.sh | 3 +++
3 files changed, 8 insertions(+)
diff --git a/diff.c b/diff.c
index f9e86bca04e..c1f47a7f013 100644
--- a/diff.c
+++ b/diff.c
@@ -4631,6 +4631,9 @@ void diff_setup_done(struct diff_options *options)
if (HAS_MULTI_BITS(options->pickaxe_opts & DIFF_PICKAXE_KINDS_G_REGEX_MASK))
die(_("-G and --pickaxe-regex are mutually exclusive, use --pickaxe-regex with -S"));
+ if (HAS_MULTI_BITS(options->pickaxe_opts & DIFF_PICKAXE_KINDS_ALL_OBJFIND_MASK))
+ die(_("---pickaxe-all and --find-object are mutually exclusive, use --pickaxe-all with -G and -S"));
+
/*
* Most of the time we can say "there are changes"
* only by checking if there are changed paths, but
diff --git a/diff.h b/diff.h
index 5e110d349be..82254396f95 100644
--- a/diff.h
+++ b/diff.h
@@ -558,6 +558,8 @@ int git_config_rename(const char *var, const char *value);
DIFF_PICKAXE_KIND_OBJFIND)
#define DIFF_PICKAXE_KINDS_G_REGEX_MASK (DIFF_PICKAXE_KIND_G | \
DIFF_PICKAXE_REGEX)
+#define DIFF_PICKAXE_KINDS_ALL_OBJFIND_MASK (DIFF_PICKAXE_ALL | \
+ DIFF_PICKAXE_KIND_OBJFIND)
#define DIFF_PICKAXE_IGNORE_CASE 32
diff --git a/t/t4209-log-pickaxe.sh b/t/t4209-log-pickaxe.sh
index 772c6c1a7c8..16166ffd3e6 100755
--- a/t/t4209-log-pickaxe.sh
+++ b/t/t4209-log-pickaxe.sh
@@ -63,6 +63,9 @@ test_expect_success 'usage' '
grep "mutually exclusive" err &&
test_expect_code 128 git log -Sstring --find-object=HEAD 2>err &&
+ grep "mutually exclusive" err &&
+
+ test_expect_code 128 git log --pickaxe-all --find-object=HEAD 2>err &&
grep "mutually exclusive" err
'
--
2.31.1.639.g3d04783866f
