From: Derrick Stolee <derrickstolee@xxxxxxxxxx>
The write_midx_bitmap() method is a long method that does a lot of
steps. It requires the write_midx_context struct for use in
prepare_midx_packing_data() and find_commits_for_midx_bitmap(), but
after that only needs the pack_order array.
This is a messy, but completely non-functional refactoring. The code is
only being moved around to reduce visibility of the write_midx_context
during the longest part of computing reachability bitmaps.
Signed-off-by: Derrick Stolee <derrickstolee@xxxxxxxxxx>
---
midx.c | 56 ++++++++++++++++++++++++++++++++------------------------
1 file changed, 32 insertions(+), 24 deletions(-)
diff --git a/midx.c b/midx.c
index 5f0dd386b02..e2dd808b35d 100644
--- a/midx.c
+++ b/midx.c
@@ -1053,40 +1053,35 @@ static struct commit **find_commits_for_midx_bitmap(uint32_t *indexed_commits_nr
return cb.commits;
}
-static int write_midx_bitmap(char *midx_name, unsigned char *midx_hash,
- struct write_midx_context *ctx,
+static int write_midx_bitmap(const char *midx_name,
+ const unsigned char *midx_hash,
+ struct packing_data *pdata,
+ struct commit **commits,
+ uint32_t commits_nr,
+ uint32_t *pack_order,
const char *refs_snapshot,
unsigned flags)
{
- struct packing_data pdata;
- struct pack_idx_entry **index;
- struct commit **commits = NULL;
- uint32_t i, commits_nr;
+ int ret, i;
uint16_t options = 0;
- char *bitmap_name = xstrfmt("%s-%s.bitmap", midx_name, hash_to_hex(midx_hash));
- int ret;
-
- if (!ctx->entries_nr)
- BUG("cannot write a bitmap without any objects");
+ struct pack_idx_entry **index;
+ char *bitmap_name = xstrfmt("%s-%s.bitmap", midx_name,
+ hash_to_hex(midx_hash));
if (flags & MIDX_WRITE_BITMAP_HASH_CACHE)
options |= BITMAP_OPT_HASH_CACHE;
- prepare_midx_packing_data(&pdata, ctx);
-
- commits = find_commits_for_midx_bitmap(&commits_nr, refs_snapshot, ctx);
-
/*
* Build the MIDX-order index based on pdata.objects (which is already
* in MIDX order; c.f., 'midx_pack_order_cmp()' for the definition of
* this order).
*/
- ALLOC_ARRAY(index, pdata.nr_objects);
- for (i = 0; i < pdata.nr_objects; i++)
- index[i] = &pdata.objects[i].idx;
+ ALLOC_ARRAY(index, pdata->nr_objects);
+ for (i = 0; i < pdata->nr_objects; i++)
+ index[i] = &pdata->objects[i].idx;
bitmap_writer_show_progress(flags & MIDX_PROGRESS);
- bitmap_writer_build_type_index(&pdata, index, pdata.nr_objects);
+ bitmap_writer_build_type_index(pdata, index, pdata->nr_objects);
/*
* bitmap_writer_finish expects objects in lex order, but pack_order
@@ -1101,16 +1096,16 @@ static int write_midx_bitmap(char *midx_name, unsigned char *midx_hash,
* happens between bitmap_writer_build_type_index() and
* bitmap_writer_finish().
*/
- for (i = 0; i < pdata.nr_objects; i++)
- index[ctx->pack_order[i]] = &pdata.objects[i].idx;
+ for (i = 0; i < pdata->nr_objects; i++)
+ index[pack_order[i]] = &pdata->objects[i].idx;
bitmap_writer_select_commits(commits, commits_nr, -1);
- ret = bitmap_writer_build(&pdata);
+ ret = bitmap_writer_build(pdata);
if (ret < 0)
goto cleanup;
bitmap_writer_set_checksum(midx_hash);
- bitmap_writer_finish(index, pdata.nr_objects, bitmap_name, options);
+ bitmap_writer_finish(index, pdata->nr_objects, bitmap_name, options);
cleanup:
free(index);
@@ -1443,8 +1438,21 @@ static int write_midx_internal(const char *object_dir,
if (flags & MIDX_WRITE_REV_INDEX &&
git_env_bool("GIT_TEST_MIDX_WRITE_REV", 0))
write_midx_reverse_index(midx_name.buf, midx_hash, &ctx);
+
if (flags & MIDX_WRITE_BITMAP) {
- if (write_midx_bitmap(midx_name.buf, midx_hash, &ctx,
+ struct packing_data pdata;
+ struct commit **commits;
+ uint32_t commits_nr;
+
+ if (!ctx.entries_nr)
+ BUG("cannot write a bitmap without any objects");
+
+ prepare_midx_packing_data(&pdata, &ctx);
+
+ commits = find_commits_for_midx_bitmap(&commits_nr, refs_snapshot, &ctx);
+
+ if (write_midx_bitmap(midx_name.buf, midx_hash, &pdata,
+ commits, commits_nr, ctx.pack_order,
refs_snapshot, flags) < 0) {
error(_("could not write multi-pack bitmap"));
result = 1;
--
gitgitgadget
