On Wed, May 19, 2021 at 09:13:27PM +0200, Patrick Steinhardt wrote:
> +while read name repo
> +do
> + refs=("create updated:new")
This (and the other array manipulation below) is a bash-ism. Presumably
you've got TEST_SHELL_PATH pointed at bash. Without that, on a system
where /bin/sh is dash, the script chokes here.
For your purposes here, I think you can get by with just a single string
with newlines in it. Or even a file (see below).
> + while read desc ref
> + do
> + test_expect_success "setup $name $desc" "
> + test_must_fail git push --force '$repo' '$ref' \
> + --receive-pack='tee pack | git receive-pack' 2>err &&
> + grep 'failed in pre-receive hook' err
> + "
This inverts the double- and single- quotes from our usual style. So if
$repo is "foo", you are creating a string that has:
test_must_fail git push --force 'foo' ...
in it, and then the test harness will eval that string. That will fail
if $repo itself contains a single quote. Pretty unlikely, but I think it
contains the absolute path.
The usual style is:
test_expect_success "setup $name $desc" '
test_must_fail git push --force "$repo" "$ref" \
...etc...
'
where the variables are dereferenced inside the eval'd snippet. So no
quoting is necessary, no matter what's in the variables.
> + test_perf "receive-pack $name $desc" "
> + git receive-pack '$repo' <pack >negotiation &&
> + grep 'pre-receive hook declined' negotiation
> + "
Likewise here, but note that test_perf is tricky! It runs the snippet in
a sub-process. You have to export $repo to make it visible (you can use
test_export, but you don't need to; there's some discussing in
t/perf/README).
> + done < <(printf "%s\n" "${refs[@]}")
> +done < <(printf "%s\n" "clone $TARGET_REPO_CLONE" "extrarefs $TARGET_REPO_REFS" "empty $TARGET_REPO_EMPTY")
These process substitutions are also bash-isms. I guess you're trying to
avoid putting the while on the right-hand side of a pipe like:
printf "%s\n" ... |
while read ...
which is good, because they set variables and those values don't
reliably make it out of the pipeline. If you stick the contents of $refs
into a file, then you can just do:
while read ...
do
...
done <ref-descs
For the outer one, a here-doc is probably a bit simpler:
while read ...
do
...
done <<-EOF
clone $TARGET_REPO_CLONE
extrarefs $TARGET_REPO_REFS
empty $TARGET_REPO_EMPTY
EOF
-Peff
