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Fri, 19 Apr 2024 09:50:51 +0000 (UTC) Date: Fri, 19 Apr 2024 11:51:15 +0200 From: Patrick Steinhardt To: git@vger.kernel.org Subject: [PATCH 02/11] parse-options-cb: only abbreviate hashes when hash algo is known Message-ID: <5daaaed2b961841d539eb88e104db57ed95809f9.1713519789.git.ps@pks.im> References: Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="j0s4hwHQngW5jdGJ" Content-Disposition: inline In-Reply-To: --j0s4hwHQngW5jdGJ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable The `OPT__ABBREV()` option can be used to add an option that abbreviates object IDs. When given an length longer than `the_hash_algo->hexsz`, then it will instead set the length to that maximum length. It may not always be guaranteed that we have `the_hash_algo` initialized properly as the hash algortihm can only be set up after we have set up `the_repository`. In that case, the hash would always be truncated to the hex length of SHA1, which may not be what the user desires. In practice it's not a problem as all commands that use `OPT__ABBREV()` also have `RUN_SETUP` set and thus cannot work without a repository. Consequently, both `the_repository` and `the_hash_algo` would be properly set up. Regardless of that, harden the code to not truncate the length when we didn't set up a repository. Signed-off-by: Patrick Steinhardt --- parse-options-cb.c | 3 ++- t/t0040-parse-options.sh | 17 +++++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/parse-options-cb.c b/parse-options-cb.c index bdc7fae497..d99d688d3c 100644 --- a/parse-options-cb.c +++ b/parse-options-cb.c @@ -7,6 +7,7 @@ #include "environment.h" #include "gettext.h" #include "object-name.h" +#include "setup.h" #include "string-list.h" #include "strvec.h" #include "oid-array.h" @@ -29,7 +30,7 @@ int parse_opt_abbrev_cb(const struct option *opt, const c= har *arg, int unset) opt->long_name); if (v && v < MINIMUM_ABBREV) v =3D MINIMUM_ABBREV; - else if (v > the_hash_algo->hexsz) + else if (startup_info->have_repository && v > the_hash_algo->hexsz) v =3D the_hash_algo->hexsz; } *(int *)(opt->value) =3D v; diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh index 8bb2a8b453..45a773642f 100755 --- a/t/t0040-parse-options.sh +++ b/t/t0040-parse-options.sh @@ -176,6 +176,23 @@ test_expect_success 'long options' ' test_cmp expect output ' =20 +test_expect_success 'abbreviate to something longer than SHA1 length' ' + cat >expect <<-EOF && + boolean: 0 + integer: 0 + magnitude: 0 + timestamp: 0 + string: (not set) + abbrev: 100 + verbose: -1 + quiet: 0 + dry run: no + file: (not set) + EOF + test-tool parse-options --abbrev=3D100 >output && + test_cmp expect output +' + test_expect_success 'missing required value' ' cat >expect <<-\EOF && error: switch `s'\'' requires a value --=20 2.44.GIT --j0s4hwHQngW5jdGJ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEF9hrgiFbCdvenl/rVbJhu7ckPpQFAmYiPpIACgkQVbJhu7ck PpTw5w//eWuYo0wKGsjZ8L8p4uJR6LJSyt4IC2ETDScFoxd5HmTwBdAqTCJf1dlm hN2kG2JmWEkOis9TI5PHfBwyHljDihl6dzCJ1XMVvAc05MVkGvRTVdPKVXC5rUnJ 18G1Icg6nowX51JS41uKfhDNXw8ZhCHuZoqffsVYTHwzQ8t50L2E12IgB5TjDWc3 fNmQ3ihRIHCkJrJQ8OrRSsCYS9oOA9XdwpBIyQJ2AzJpxYpNMoDMG+JVerCx0bgT s1Otsg0IYrxpxCQwoPPN4OlM6UofyYApvt/OiYLVg49UxHFvMNwPFhH/prJLTkZd IUIcm9E6EvhjfSiVdesBr8D8ExHO9JgWYqXhFJKfdKdi9EiGUmDk49wMy4jc1fdh 1gzRUVwxo4TsQ34YGPTM43dZ83FgF44cyNKhiueLCCi3kootZy9sokA3scEpvS8U +P3Ux0JKtqVvmVitFT5GtJ/OQ+AAdcWKnNGR869No8p7CBtaXJjaOUGEQANx7UFU aK+TV2naMfEFPHbUv1yF+gt+PLmzCtAzbrQ/RxHEPB7xwdIefzymfieyBFLM1Hvr l19zCiL5Rc+g/BOAhXYIMhrkXVy6h4TN2MajHRUjGkCdANmFo6Gb1+UFG7rxGVW8 EmBpVl3PpdjyPpUQj8jcWV+ErO+gzxeryx+ghokVIb68eFelqi4= =N3Hu -----END PGP SIGNATURE----- --j0s4hwHQngW5jdGJ--