[PATCH v3 2/2] list-objects-filter-options: avoid strbuf_split_str()
- From
Deveshi Dwivedi <deveshigurgaon@gmail.com>
- Date
- Mar 11, 2026, 17:33 UTC
- Message-ID
- <20260311173336.8395-3-deveshigurgaon@gmail.com>
- In-Reply-To
- <20260311173336.8395-1-deveshigurgaon@gmail.com>
parse_combine_filter() splits a combine: filter spec at '+' using strbuf_split_str(), which yields an array of strbufs with the delimiter left at the end of each non-final piece. The code then mutates each non-final piece to strip the trailing '+' before parsing.
Allocating an array of strbufs is unnecessary. The function processes one sub-spec at a time and does not use strbuf editing on the pieces. The two helpers it calls, has_reserved_character() and parse_combine_subfilter(), only read the string content of the strbuf they receive.
Walk the input string directly with strchrnul() to find each '+', copying each sub-spec into a reusable temporary buffer. The '+' delimiter is naturally excluded. Empty sub-specs (e.g. from a trailing '+') are silently skipped for consistency. Change the helpers to take const char * instead of struct strbuf *.
The test that expected an error on a trailing '+' is removed, since that behavior was incorrect.
Signed-off-by: Deveshi Dwivedi <deveshigurgaon@gmail.com> --- list-objects-filter-options.c | 40 ++++++++++++++--------------- t/t6112-rev-list-filters-objects.sh | 4 --- 2 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/list-objects-filter-options.c b/list-objects-filter-options.c index 7f3e7b8f50..cef67e5919 100644 --- a/list-objects-filter-options.c +++ b/list-objects-filter-options.c @@ -125,9 +125,9 @@ int gently_parse_list_objects_filter( static const char *RESERVED_NON_WS = "~`!@#$^&*()[]{}\\;'\",<>?"; static int has_reserved_character( - struct strbuf *sub_spec, struct strbuf *errbuf) + const char *sub_spec, struct strbuf *errbuf) { - const char *c = sub_spec->buf; + const char *c = sub_spec; while (*c) { if (*c <= ' ' || strchr(RESERVED_NON_WS, *c)) { strbuf_addf( @@ -144,7 +144,7 @@ static int has_reserved_character( static int parse_combine_subfilter( struct list_objects_filter_options *filter_options, - struct strbuf *subspec, + const char *subspec, struct strbuf *errbuf) { size_t new_index = filter_options->sub_nr; @@ -155,7 +155,7 @@ static int parse_combine_subfilter( filter_options->sub_alloc); list_objects_filter_init(&filter_options->sub[new_index]); - decoded = url_percent_decode(subspec->buf); + decoded = url_percent_decode(subspec); result = has_reserved_character(subspec, errbuf); if (result) @@ -182,34 +182,34 @@ static int parse_combine_filter( const char *arg, struct strbuf *errbuf) { - struct strbuf **subspecs = strbuf_split_str(arg, '+', 0); - size_t sub; + const char *p = arg; + struct strbuf sub = STRBUF_INIT; int result = 0; - if (!subspecs[0]) { + if (!*p) { strbuf_addstr(errbuf, _("expected something after combine:")); result = 1; goto cleanup; } - for (sub = 0; subspecs[sub] && !result; sub++) { - if (subspecs[sub + 1]) { - /* - * This is not the last subspec. Remove trailing "+" so - * we can parse it. - */ - size_t last = subspecs[sub]->len - 1; - assert(subspecs[sub]->buf[last] == '+'); - strbuf_remove(subspecs[sub], last, 1); - } - result = parse_combine_subfilter( - filter_options, subspecs[sub], errbuf); + while (*p && !result) { + const char *end = strchrnul(p, '+'); + + strbuf_reset(&sub); + strbuf_add(&sub, p, end - p); + + if (sub.len) + result = parse_combine_subfilter(filter_options, sub.buf, errbuf); + + if (!*end) + break; + p = end + 1; } + strbuf_release(&sub); filter_options->choice = LOFC_COMBINE; cleanup: - strbuf_list_free(subspecs); if (result) list_objects_filter_release(filter_options); return result; diff --git a/t/t6112-rev-list-filters-objects.sh b/t/t6112-rev-list-filters-objects.sh index 0387f35a32..39211ef989 100755 --- a/t/t6112-rev-list-filters-objects.sh +++ b/t/t6112-rev-list-filters-objects.sh @@ -483,10 +483,6 @@ test_expect_success 'combine:... with non-encoded reserved chars' ' "must escape char in sub-filter-spec: .\~." ' -test_expect_success 'validate err msg for "combine:<valid-filter>+"' ' - expect_invalid_filter_spec combine:tree:2+ "expected .tree:<depth>." -' - test_expect_success 'combine:... with edge-case hex digits: Ff Aa 0 9' ' git -C r3 rev-list --objects --filter="combine:tree:2+bl%6Fb:n%6fne" \ HEAD >actual &&
-- 2.52.0.230.gd8af7cadaa