Hi Shourya,
On Wed, Aug 05, 2020 at 11:19:18PM +0530, Shourya Shukla wrote:
> The tests in 't7401-submodule-summary.sh' were written a long time ago
> and have some violations with respect to our CodingGuidelines such as
> incorrect spacing in usages of the redirection operator and absence
> of line feed between statements in case of the '|' (pipe) operator.
I'm not aware of anywhere in CodingGuidelines that says you can't have
the pipe operator on a single line. I assume you're referring to the
part that reads
If a command sequence joined with && or || or | spans multiple
lines, put each command on a separate line and put && and || and
| operators at the end of each line, rather than the start.
Note that says "If a command sequence [...] spans multiple lines", which
doesn't apply in our case.
> Update it to match the CodingGuidelines.
>
> Mentored-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
> Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@xxxxxxxxx>
> Signed-off-by: Shourya Shukla <shouryashukla.oo@xxxxxxxxx>
> ---
> t/t7401-submodule-summary.sh | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/t/t7401-submodule-summary.sh b/t/t7401-submodule-summary.sh
> index 9bc841d085..4439fb7c17 100755
> --- a/t/t7401-submodule-summary.sh
> +++ b/t/t7401-submodule-summary.sh
> @@ -16,12 +16,13 @@ add_file () {
> owd=$(pwd)
> cd "$sm"
> for name; do
> - echo "$name" > "$name" &&
> + echo "$name" >"$name" &&
> git add "$name" &&
> test_tick &&
> git commit -m "Add $name"
> done >/dev/null
> - git rev-parse --verify HEAD | cut -c1-7
> + git rev-parse --verify HEAD |
> + cut -c1-7
For the reason above, I disagree with this change as-is. However, one
useful thing that you can do here is breaking the pipe up entirely. We
want to avoid is having a git command in the upstream of a pipe. This is
because the return code of a pipe comes from the last command executed
so if the rev-parse fails, its return code is swallowed and we have no
way of knowing.
You could break the pipe up by storing the output of the rev-parse in an
intermediate file and then have cut read from that file.
