git/t/t1307-config-blob.sh
Jeff King 17b8a2d6cd config: die when --blob is used outside a repository
If you run "config --blob" outside of a repository, then we
eventually try to resolve the blob name and hit a BUG().
Let's catch this earlier and provide a useful message.

Note that we could also catch this much lower in the stack,
in git_config_from_blob_ref(). That might cover other
callsites, too, but it's unclear whether those ones would
actually be bugs or not. So let's leave the low-level
functions to assume the caller knows what it's doing (and
BUG() if it turns out it doesn't).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 09:47:13 +09:00

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#!/bin/sh
test_description='support for reading config from a blob'
. ./test-lib.sh
test_expect_success 'create config blob' '
cat >config <<-\EOF &&
[some]
value = 1
EOF
git add config &&
git commit -m foo
'
test_expect_success 'list config blob contents' '
echo some.value=1 >expect &&
git config --blob=HEAD:config --list >actual &&
test_cmp expect actual
'
test_expect_success 'fetch value from blob' '
echo true >expect &&
git config --blob=HEAD:config --bool some.value >actual &&
test_cmp expect actual
'
test_expect_success 'reading non-existing value from blob is an error' '
test_must_fail git config --blob=HEAD:config non.existing
'
test_expect_success 'reading from blob and file is an error' '
test_must_fail git config --blob=HEAD:config --system --list
'
test_expect_success 'reading from missing ref is an error' '
test_must_fail git config --blob=HEAD:doesnotexist --list
'
test_expect_success 'reading from non-blob is an error' '
test_must_fail git config --blob=HEAD --list
'
test_expect_success 'setting a value in a blob is an error' '
test_must_fail git config --blob=HEAD:config some.value foo
'
test_expect_success 'deleting a value in a blob is an error' '
test_must_fail git config --blob=HEAD:config --unset some.value
'
test_expect_success 'editing a blob is an error' '
test_must_fail git config --blob=HEAD:config --edit
'
test_expect_success 'parse errors in blobs are properly attributed' '
cat >config <<-\EOF &&
[some]
value = "
EOF
git add config &&
git commit -m broken &&
test_must_fail git config --blob=HEAD:config some.value 2>err &&
test_i18ngrep "HEAD:config" err
'
test_expect_success 'can parse blob ending with CR' '
printf "[some]key = value\\r" >config &&
git add config &&
git commit -m CR &&
echo value >expect &&
git config --blob=HEAD:config some.key >actual &&
test_cmp expect actual
'
test_expect_success 'config --blob outside of a repository is an error' '
test_must_fail nongit git config --blob=foo --list
'
test_done