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strbuf: introduce strbuf_addstrings() to repeatedly add a string

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In a following commit we are going to port code from
"t/helper/test-sha256.c", t/helper/test-hash.c and "t/t0015-hash.sh" to
a new "t/unit-tests/t-hash.c" file using the recently added unit test
framework.

To port code like: perl -e "$| = 1; print q{aaaaaaaaaa} for 1..100000;"
we are going to need a new strbuf_addstrings() function that repeatedly
adds the same string a number of times to a buffer.

Such a strbuf_addstrings() function would already be useful in
"json-writer.c" and "builtin/submodule-helper.c" as both of these files
already have code that repeatedly adds the same string. So let's
introduce such a strbuf_addstrings() function in "strbuf.{c,h}" and use
it in both "json-writer.c" and "builtin/submodule-helper.c".

We use the "strbuf_addstrings" name as this way strbuf_addstr() and
strbuf_addstrings() would be similar for strings as strbuf_addch() and
strbuf_addchars() for characters.

Helped-by: Junio C Hamano <gitster@pobox.com>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Co-authored-by: Achu Luma <ach.lumap@gmail.com>
Signed-off-by: Achu Luma <ach.lumap@gmail.com>
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ghanshyam Thakkar
2024-05-29 13:30:29 +05:30
committed by Junio C Hamano
parent 786a3e4b8d
commit a70f8f19ad
4 changed files with 16 additions and 7 deletions
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4
builtin/submodule--helper.c
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@ -257,11 +257,9 @@ static void module_list_active(struct module_list *list)
static char *get_up_path(const char *path)
{
int i;
struct strbuf sb = STRBUF_INIT;
for (i = count_slashes(path); i; i--)
strbuf_addstr(&sb, "../");
strbuf_addstrings(&sb, "../", count_slashes(path));
/*
* Check if 'path' ends with slash or not