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object-name: iterate ambiguous objects before showing header 

Change the "The candidates are" header that's shown for ambiguous
objects to be shown after we've iterated over all of the objects.

If we get any errors while doing so we don't want to split up the the
header and the list as a result. The two will now be printed together,
as shown in the updated testcase.

As we're accumulating the lines into as "struct strbuf" before
emitting them we need to add a trailing newline to the call in
show_ambiguous_object(). This and the change from "The candidates
are:" to "The candidates are:\n%s" helps to give translators more
context.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2022-01-27 06:26:48 +01:00 committed by Junio C Hamano
parent 851b3d7671
commit d2ef3cb7e2
2 changed files with 27 additions and 9 deletions
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27
object-name.c
View File

@ -351,9 +351,16 @@ static int init_object_disambiguation(struct repository *r,
return 0;
}
struct ambiguous_output {
const struct disambiguate_state *ds;
struct strbuf advice;
};
static int show_ambiguous_object(const struct object_id *oid, void *data)
{
const struct disambiguate_state *ds = data;
struct ambiguous_output *state = data;
const struct disambiguate_state *ds = state->ds;
struct strbuf *advice = &state->advice;
struct strbuf desc = STRBUF_INIT;
int type;
const char *hash;
@ -452,7 +459,7 @@ static int show_ambiguous_object(const struct object_id *oid, void *data)
* you'll probably want to swap the "%s" and leading " " space
* around.
*/
advise(_(" %s"), desc.buf);
strbuf_addf(advice, _(" %s\n"), desc.buf);
strbuf_release(&desc);
return 0;
@ -551,6 +558,10 @@ static enum get_oid_result get_short_oid(struct repository *r,
if (!quietly && (status == SHORT_NAME_AMBIGUOUS)) {
struct oid_array collect = OID_ARRAY_INIT;
struct ambiguous_output out = {
.ds = &ds,
.advice = STRBUF_INIT,
};
error(_("short object ID %s is ambiguous"), ds.hex_pfx);
@ -563,13 +574,21 @@ static enum get_oid_result get_short_oid(struct repository *r,
if (!ds.ambiguous)
ds.fn = NULL;
advise(_("The candidates are:"));
repo_for_each_abbrev(r, ds.hex_pfx, collect_ambiguous, &collect);
sort_ambiguous_oid_array(r, &collect);
if (oid_array_for_each(&collect, show_ambiguous_object, &ds))
if (oid_array_for_each(&collect, show_ambiguous_object, &out))
BUG("show_ambiguous_object shouldn't return non-zero");
/*
* TRANSLATORS: The argument is the list of ambiguous
* objects composed in show_ambiguous_object(). See
* its "TRANSLATORS" comments for details.
*/
advise(_("The candidates are:\n%s"), out.advice.buf);
oid_array_clear(&collect);
strbuf_release(&out.advice);
}
return status;

9
t/t1512-rev-parse-disambiguation.sh
View File

@ -73,7 +73,6 @@ test_expect_success 'ambiguous loose bad object parsed as OBJ_BAD' '
test_cmp_failed_rev_parse blob.bad bad0 <<-\EOF
error: short object ID bad0... is ambiguous
hint: The candidates are:
fatal: invalid object type
EOF
'
@ -94,11 +93,11 @@ test_expect_success POSIXPERM 'ambigous zlib corrupt loose blob' '
test_cmp_failed_rev_parse blob.corrupt cafe <<-\EOF
error: short object ID cafe... is ambiguous
error: inflate: data stream error (incorrect header check)
error: unable to unpack cafe... header
error: inflate: data stream error (incorrect header check)
error: unable to unpack cafe... header
hint: The candidates are:
error: inflate: data stream error (incorrect header check)
error: unable to unpack cafe... header
error: inflate: data stream error (incorrect header check)
error: unable to unpack cafe... header
hint: cafe... [bad object]
hint: cafe... blob
fatal: ambiguous argument '\''cafe...'\'': unknown revision or path not in the working tree.