Support an arbitrary file descriptor expression in the semantic patch
for replacing open+die_errno with xopen, not just an identifier, and
apply it. This makes the error message at the single affected place
more consistent and reduces code duplication.
Signed-off-by: René Scharfe <l.s.r@xxxxxx>
---
The semantic patch itself gains some duplicate lines in exchange,
unfortunately, but I don't how to avoid that.
builtin/index-pack.c | 4 +---
contrib/coccinelle/xopen.cocci | 13 ++++++++-----
2 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 6cc4890217..738a35c53c 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -187,9 +187,7 @@ static void init_thread(void)
pthread_key_create(&key, NULL);
CALLOC_ARRAY(thread_data, nr_threads);
for (i = 0; i < nr_threads; i++) {
- thread_data[i].pack_fd = open(curr_pack, O_RDONLY);
- if (thread_data[i].pack_fd == -1)
- die_errno(_("unable to open %s"), curr_pack);
+ thread_data[i].pack_fd = xopen(curr_pack, O_RDONLY);
}
threads_active = 1;
diff --git a/contrib/coccinelle/xopen.cocci b/contrib/coccinelle/xopen.cocci
index 814d7b8a1a..b71db67019 100644
--- a/contrib/coccinelle/xopen.cocci
+++ b/contrib/coccinelle/xopen.cocci
@@ -2,15 +2,18 @@
identifier fd;
identifier die_fn =~ "^(die|die_errno)$";
@@
-(
- fd =
+ int fd =
- open
+ xopen
(...);
-|
- int fd =
+- if ( \( fd < 0 \| fd == -1 \) ) { die_fn(...); }
+
+@@
+expression fd;
+identifier die_fn =~ "^(die|die_errno)$";
+@@
+ fd =
- open
+ xopen
(...);
-)
- if ( \( fd < 0 \| fd == -1 \) ) { die_fn(...); }
--
2.33.0
