Stefan Beller <sbeller@xxxxxxxxxx> writes:
> A use reported a submodule issue regarding strange case indentation
> issues, but it could be boiled down to the following test case:
>
> $ git init test && cd test
> $ git config foo."Bar".key test
> $ git config foo."bar".key test
> $ tail -n 3 .git/config
> [foo "Bar"]
> key = test
> key = test
>
> Sub sections are case sensitive and we have a test for correctly reading
> them. However we do not have a test for writing out config correctly with
> case sensitive subsection names, which is why this went unnoticed in
> 6ae996f2acf (git_config_set: make use of the config parser's event
> stream, 2018-04-09)
Thanks for finding this bug and fixing it; yes it would have been
even nicer if we caught it before it hit 'master', but we can only
do what we can X-<.
> diff --git a/config.c b/config.c
> index 3aacddfec4b..3ded92b678b 100644
> --- a/config.c
> +++ b/config.c
> @@ -2374,7 +2374,7 @@ static int store_aux_event(enum config_event_t type,
> store->is_keys_section =
> store->parsed[store->parsed_nr].is_keys_section =
> cf->var.len - 1 == store->baselen &&
> - !strncasecmp(cf->var.buf, store->key, store->baselen);
> + !strncmp(cf->var.buf, store->key, store->baselen);
> if (store->is_keys_section) {
> store->section_seen = 1;
> ALLOC_GROW(store->seen, store->seen_nr + 1,
> diff --git a/t/t1300-config.sh b/t/t1300-config.sh
> index 03c223708eb..8325d4495f4 100755
> --- a/t/t1300-config.sh
> +++ b/t/t1300-config.sh
> @@ -1218,6 +1218,24 @@ test_expect_success 'last one wins: three level vars' '
> test_cmp expect actual
> '
>
> +test_expect_success 'setting different case subsections ' '
> + test_when_finished "rm -f caseSens caseSens_actual caseSens_expect" &&
> +
> + # v.a.r and v.A.r are not the same variable, as the middle
> + # level of a three-level configuration variable name is
> + # case sensitive.
> + git config -f caseSens v."A".r VAL &&
> + git config -f caseSens v."a".r val &&
It probably is easier to read to write these as "v.A.r" and "v.a.r"
respectively.
> +
> + echo VAL >caseSens_expect &&
> + git config -f caseSens v."A".r >caseSens_actual &&
> + test_cmp caseSens_expect caseSens_actual &&
> +
> + echo val >caseSens_expect &&
> + git config -f caseSens v."a".r >caseSens_actual &&
> + test_cmp caseSens_expect caseSens_actual
> +'
> +
> for VAR in a .a a. a.0b a."b c". a."b c".0d
> do
> test_expect_success "git -c $VAR=VAL rejects invalid '$VAR'" '
