Re: [PATCH 2/2] list-objects-filter: handle unresolved sparse filter OID

[Derrick Stolee <stolee@gmail.com>]

On 8/28/2019 4:18 PM, Jon Simons wrote:
> Handle a potential NULL 'sparse_oid_value' when attempting to load
> sparse filter exclusions by blob, to avoid segfaulting later during
> 'add_excludes_from_blob_to_list'.
> 
> While here, uniquify the errors emitted to distinguish between the
> case that a given OID is NULL due to an earlier failure to resolve it,
> and when an OID resolves but parsing the sparse filter spec fails.

Adding localization here also seems like a good idea. Thanks!

-Stolee
> +test_expect_success 'partial clone with unresolvable sparse filter fails cleanly' '
> +	test_must_fail git clone --no-local --no-checkout --filter=sparse:oid=master:sparse-filter "file://$(pwd)/sparse-src" sc1 2>err &&
> +	test_i18ngrep "unable to read sparse filter specification from sparse:oid=master:sparse-filter" err &&
> +	test_must_fail git clone --no-local --no-checkout --filter=sparse:oid=master "file://$(pwd)/sparse-src" sc2 2>err &&
> +	test_i18ngrep "unable to parse sparse filter data in $(git -C sparse-src rev-parse master)" err

Just as a sanity check: when we use test_i18ngrep, how does it know how to
separate the part that is translated and which part is not?

	translated: "unable to read sparse filter specification from"
	not translated: "sparse:oid=master"

Thanks,
-Stolee