mirrors/git
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

builtin/repack.c: allow configuring cruft pack generation

Browse Source 
In servers which set the pack.window configuration to a large value, we
can wind up spending quite a lot of time finding new bases when breaking
delta chains between reachable and unreachable objects while generating
a cruft pack.

Introduce a handful of `repack.cruft*` configuration variables to
control the parameters used by pack-objects when generating a cruft
pack.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau
2022-05-20 19:18:06 -04:00
committed by Junio C Hamano
parent f9825d1cf7
commit 4571324b99
3 changed files with 127 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
builtin/repack.c
View File

@ -41,9 +41,21 @@ static const char incremental_bitmap_conflict_error[] = N_(
"--no-write-bitmap-index or disable the pack.writebitmaps configuration."
);
struct pack_objects_args {
const char *window;
const char *window_memory;
const char *depth;
const char *threads;
const char *max_pack_size;
int no_reuse_delta;
int no_reuse_object;
int quiet;
int local;
};
static int repack_config(const char *var, const char *value, void *cb)
{
struct pack_objects_args *cruft_po_args = cb;
if (!strcmp(var, "repack.usedeltabaseoffset")) {
delta_base_offset = git_config_bool(var, value);
return 0;
@ -65,6 +77,14 @@ static int repack_config(const char *var, const char *value, void *cb)
run_update_server_info = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "repack.cruftwindow"))
return git_config_string(&cruft_po_args->window, var, value);
if (!strcmp(var, "repack.cruftwindowmemory"))
return git_config_string(&cruft_po_args->window_memory, var, value);
if (!strcmp(var, "repack.cruftdepth"))
return git_config_string(&cruft_po_args->depth, var, value);
if (!strcmp(var, "repack.cruftthreads"))
return git_config_string(&cruft_po_args->threads, var, value);
return git_default_config(var, value, cb);
}
@ -157,18 +177,6 @@ static void remove_redundant_pack(const char *dir_name, const char *base_name)
strbuf_release(&buf);
}
struct pack_objects_args {
const char *window;
const char *window_memory;
const char *depth;
const char *threads;
const char *max_pack_size;
int no_reuse_delta;
int no_reuse_object;
int quiet;
int local;
};
static void prepare_pack_objects(struct child_process *cmd,
const struct pack_objects_args *args)
{
@ -692,6 +700,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
int keep_unreachable = 0;
struct string_list keep_pack_list = STRING_LIST_INIT_NODUP;
struct pack_objects_args po_args = {NULL};
struct pack_objects_args cruft_po_args = {NULL};
int geometric_factor = 0;
int write_midx = 0;
@ -746,7 +755,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
OPT_END()
};
git_config(repack_config, NULL);
git_config(repack_config, &cruft_po_args);
argc = parse_options(argc, argv, prefix, builtin_repack_options,
git_repack_usage, 0);
@ -921,7 +930,19 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
if (*pack_prefix == '/')
pack_prefix++;
ret = write_cruft_pack(&po_args, pack_prefix, &names,
if (!cruft_po_args.window)
cruft_po_args.window = po_args.window;
if (!cruft_po_args.window_memory)
cruft_po_args.window_memory = po_args.window_memory;
if (!cruft_po_args.depth)
cruft_po_args.depth = po_args.depth;
if (!cruft_po_args.threads)
cruft_po_args.threads = po_args.threads;
cruft_po_args.local = po_args.local;
cruft_po_args.quiet = po_args.quiet;
ret = write_cruft_pack(&cruft_po_args, pack_prefix, &names,
&existing_nonkept_packs,
&existing_kept_packs);
if (ret)