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ls-files: align format atoms with ls-tree

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"git ls-files --format" can be used to format the output of
multiple file entries in the index, while "git ls-tree --format"
can be used to format the contents of a tree object. However,
the current set of %(objecttype), "(objectsize)", and
"%(objectsize:padded)" atoms supported by "git ls-files --format"
is a subset of what is available in "git ls-tree --format".

Users sometimes need to establish a unified view between the index
and tree, which can help with comparison or conversion between the two.

Therefore, this patch adds the missing atoms to "git ls-files --format".
"%(objecttype)" can be used to retrieve the object type corresponding
to a file in the index, "(objectsize)" can be used to retrieve the
object size corresponding to a file in the index, and "%(objectsize:padded)"
is the same as "(objectsize)", except with padded format.

Signed-off-by: ZheNing Hu <adlternative@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
ZheNing Hu
2023-05-23 09:00:18 +00:00
committed by Junio C Hamano
parent 5bc069e383
commit 4d28c4f75f
3 changed files with 68 additions and 0 deletions
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27
builtin/ls-files.c
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@ -25,6 +25,9 @@
#include "setup.h"
#include "submodule.h"
#include "submodule-config.h"
#include "object-store.h"
#include "hex.h"
static int abbrev;
static int show_deleted;
@ -241,6 +244,24 @@ static void show_submodule(struct repository *superproject,
repo_clear(&subrepo);
}
static void expand_objectsize(struct strbuf *line, const struct object_id *oid,
const enum object_type type, unsigned int padded)
{
if (type == OBJ_BLOB) {
unsigned long size;
if (oid_object_info(the_repository, oid, &size) < 0)
die(_("could not get object info about '%s'"),
oid_to_hex(oid));
if (padded)
strbuf_addf(line, "%7"PRIuMAX, (uintmax_t)size);
else
strbuf_addf(line, "%"PRIuMAX, (uintmax_t)size);
} else if (padded) {
strbuf_addf(line, "%7s", "-");
} else {
strbuf_addstr(line, "-");
}
}
struct show_index_data {
const char *pathname;
struct index_state *istate;
@ -272,6 +293,12 @@ static size_t expand_show_index(struct strbuf *sb, const char *start,
strbuf_addf(sb, "%06o", data->ce->ce_mode);
else if (skip_prefix(start, "(objectname)", &p))
strbuf_add_unique_abbrev(sb, &data->ce->oid, abbrev);
else if (skip_prefix(start, "(objecttype)", &p))
strbuf_addstr(sb, type_name(object_type(data->ce->ce_mode)));
else if (skip_prefix(start, "(objectsize:padded)", &p))
expand_objectsize(sb, &data->ce->oid, object_type(data->ce->ce_mode), 1);
else if (skip_prefix(start, "(objectsize)", &p))
expand_objectsize(sb, &data->ce->oid, object_type(data->ce->ce_mode), 0);
else if (skip_prefix(start, "(stage)", &p))
strbuf_addf(sb, "%d", ce_stage(data->ce));
else if (skip_prefix(start, "(eolinfo:index)", &p))