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git/t/t1515-rev-parse-outside-repo.sh
Jeff King fc7d47f0dd rev-parse: let some options run outside repository
Once upon a time, you could use "--local-env-vars" and
"--resolve-git-dir" outside of any git repository, but they
had to come first on the command line. Commit 68889b4
(rev-parse: remove restrictions on some options, 2013-07-21)
put them into the normal option-parsing loop, fixing the
latter. But it inadvertently broke the former, as we call
setup_git_directory() before starting that loop.

We can note that those options don't care even conditionally
about whether we are in a git repo. So it's fine if we
simply wait to setup the repo until we see an option that
needs it.

However, there is one special exception we should make:
historically, rev-parse will set up the repository and read
config even if there are _no_ options. Some of the
tests in t1300 rely on this to check "git -c $config"
parsing. That's not mirroring real-world use, and we could
tweak the test.  But t0002 uses a bare "git rev-parse" to
check "are we in a git repository?". It's plausible that
real-world scripts are relying on this.

So let's cover this case specially, and treat an option-less
"rev-parse" as "see if we're in a repo".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-29 09:24:47 -08:00

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#!/bin/sh
test_description='check that certain rev-parse options work outside repo'
. ./test-lib.sh
test_expect_success 'set up non-repo directory' '
GIT_CEILING_DIRECTORIES=$(pwd) &&
export GIT_CEILING_DIRECTORIES &&
mkdir non-repo &&
cd non-repo &&
# confirm that git does not find a repo
test_must_fail git rev-parse --git-dir
'
# Rather than directly test the output of sq-quote directly,
# make sure the shell can read back a tricky case, since
# that's what we really care about anyway.
tricky="really tricky with \\ and \" and '"
dump_args () {
for i in "$@"; do
echo "arg: $i"
done
}
test_expect_success 'rev-parse --sq-quote' '
dump_args "$tricky" easy >expect &&
eval "dump_args $(git rev-parse --sq-quote "$tricky" easy)" >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse --local-env-vars' '
git rev-parse --local-env-vars >actual &&
# we do not want to depend on the complete list here,
# so just look for something plausible
grep ^GIT_DIR actual
'
test_expect_success 'rev-parse --resolve-git-dir' '
git init --separate-git-dir repo dir &&
test_must_fail git rev-parse --resolve-git-dir . &&
echo "$(pwd)/repo" >expect &&
git rev-parse --resolve-git-dir dir/.git >actual &&
test_cmp expect actual
'
test_done