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rev-list: support human-readable output for --disk-usage

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The '--disk-usage' option for git-rev-list was introduced in 16950f8384
(rev-list: add --disk-usage option for calculating disk usage, 2021-02-09).
This is very useful for people inspect their git repo's objects usage
infomation, but the resulting number is quit hard for a human to read.

Teach git rev-list to output a human readable result when using
'--disk-usage'.

Signed-off-by: Li Linchao <lilinchao@oschina.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Li Linchao
2022-08-11 04:47:54 +00:00
committed by Junio C Hamano
parent 5502f77b69
commit 9096451acd
3 changed files with 57 additions and 4 deletions
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36
builtin/rev-list.c
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@ -46,6 +46,7 @@ static const char rev_list_usage[] =
" --parents\n"
" --children\n"
" --objects | --objects-edge\n"
" --disk-usage[=human]\n"
" --unpacked\n"
" --header | --pretty\n"
" --[no-]object-names\n"
@ -81,6 +82,7 @@ static int arg_show_object_names = 1;
static int show_disk_usage;
static off_t total_disk_usage;
static int human_readable;
static off_t get_object_disk_usage(struct object *obj)
{
@ -368,6 +370,17 @@ static int show_object_fast(
return 1;
}
static void print_disk_usage(off_t size)
{
struct strbuf sb = STRBUF_INIT;
if (human_readable)
strbuf_humanise_bytes(&sb, size);
else
strbuf_addf(&sb, "%"PRIuMAX, (uintmax_t)size);
puts(sb.buf);
strbuf_release(&sb);
}
static inline int parse_missing_action_value(const char *value)
{
if (!strcmp(value, "error")) {
@ -473,6 +486,7 @@ static int try_bitmap_disk_usage(struct rev_info *revs,
int filter_provided_objects)
{
struct bitmap_index *bitmap_git;
off_t size_from_bitmap;
if (!show_disk_usage)
return -1;
@ -481,8 +495,8 @@ static int try_bitmap_disk_usage(struct rev_info *revs,
if (!bitmap_git)
return -1;
printf("%"PRIuMAX"\n",
(uintmax_t)get_disk_usage_from_bitmap(bitmap_git, revs));
size_from_bitmap = get_disk_usage_from_bitmap(bitmap_git, revs);
print_disk_usage(size_from_bitmap);
return 0;
}
@ -624,7 +638,21 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp(arg, "--disk-usage")) {
if (skip_prefix(arg, "--disk-usage", &arg)) {
if (*arg == '=') {
if (!strcmp(++arg, "human")) {
human_readable = 1;
} else
die(_("invalid value for '%s': '%s', the only allowed format is '%s'"),
"--disk-usage=<format>", arg, "human");
} else if (*arg) {
/*
* Arguably should goto a label to continue chain of ifs?
* Doesn't matter unless we try to add --disk-usage-foo
* afterwards.
*/
usage(rev_list_usage);
}
show_disk_usage = 1;
info.flags |= REV_LIST_QUIET;
continue;
@ -753,7 +781,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
}
if (show_disk_usage)
printf("%"PRIuMAX"\n", (uintmax_t)total_disk_usage);
print_disk_usage(total_disk_usage);
cleanup:
release_revisions(&revs);