When selecting which packfiles will be written while generating a MIDX,
the MIDX internals fill out a 'struct pack_info' with various pieces of
book-keeping.
Instead of filling out each field of the `pack_info` structure
individually in each of the two spots that modify the array of such
structures (`ctx->info`), extract a common routine that does this for
us.
This reduces the code duplication by a modest amount. But more
importantly, it zero-initializes the structure before assigning values
into it. This hardens us for a future change which will add additional
fields to this structure which (until this patch) was not
zero-initialized.
As a result, any new fields added to the `pack_info` structure need only
be updated in a single location, instead of at each spot within midx.c.
There are no functional changes in this patch.
Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx>
---
midx.c | 35 +++++++++++++++++++----------------
1 file changed, 19 insertions(+), 16 deletions(-)
diff --git a/midx.c b/midx.c
index 3b727dc633..591b3c636e 100644
--- a/midx.c
+++ b/midx.c
@@ -464,6 +464,17 @@ struct pack_info {
unsigned expired : 1;
};
+static void fill_pack_info(struct pack_info *info,
+ struct packed_git *p, char *pack_name,
+ uint32_t orig_pack_int_id)
+{
+ memset(info, 0, sizeof(struct pack_info));
+
+ info->orig_pack_int_id = orig_pack_int_id;
+ info->pack_name = pack_name;
+ info->p = p;
+}
+
static int pack_info_compare(const void *_a, const void *_b)
{
struct pack_info *a = (struct pack_info *)_a;
@@ -504,6 +515,7 @@ static void add_pack_to_midx(const char *full_path, size_t full_path_len,
const char *file_name, void *data)
{
struct write_midx_context *ctx = data;
+ struct packed_git *p;
if (ends_with(file_name, ".idx")) {
display_progress(ctx->progress, ++ctx->pack_paths_checked);
@@ -530,17 +542,14 @@ static void add_pack_to_midx(const char *full_path, size_t full_path_len,
ALLOC_GROW(ctx->info, ctx->nr + 1, ctx->alloc);
- ctx->info[ctx->nr].p = add_packed_git(full_path,
- full_path_len,
- 0);
-
- if (!ctx->info[ctx->nr].p) {
+ p = add_packed_git(full_path, full_path_len, 0);
+ if (!p) {
warning(_("failed to add packfile '%s'"),
full_path);
return;
}
- if (open_pack_index(ctx->info[ctx->nr].p)) {
+ if (open_pack_index(p)) {
warning(_("failed to open pack-index '%s'"),
full_path);
close_pack(ctx->info[ctx->nr].p);
@@ -548,9 +557,8 @@ static void add_pack_to_midx(const char *full_path, size_t full_path_len,
return;
}
- ctx->info[ctx->nr].pack_name = xstrdup(file_name);
- ctx->info[ctx->nr].orig_pack_int_id = ctx->nr;
- ctx->info[ctx->nr].expired = 0;
+ fill_pack_info(&ctx->info[ctx->nr], p, xstrdup(file_name),
+ ctx->nr);
ctx->nr++;
}
}
@@ -1310,11 +1318,6 @@ static int write_midx_internal(const char *object_dir,
for (i = 0; i < ctx.m->num_packs; i++) {
ALLOC_GROW(ctx.info, ctx.nr + 1, ctx.alloc);
- ctx.info[ctx.nr].orig_pack_int_id = i;
- ctx.info[ctx.nr].pack_name = xstrdup(ctx.m->pack_names[i]);
- ctx.info[ctx.nr].p = ctx.m->packs[i];
- ctx.info[ctx.nr].expired = 0;
-
if (flags & MIDX_WRITE_REV_INDEX) {
/*
* If generating a reverse index, need to have
@@ -1330,10 +1333,10 @@ static int write_midx_internal(const char *object_dir,
if (open_pack_index(ctx.m->packs[i]))
die(_("could not open index for %s"),
ctx.m->packs[i]->pack_name);
- ctx.info[ctx.nr].p = ctx.m->packs[i];
}
- ctx.nr++;
+ fill_pack_info(&ctx.info[ctx.nr++], ctx.m->packs[i],
+ xstrdup(ctx.m->pack_names[i]), i);
}
}
--
2.43.0.24.g980b318f98
