sci-libs/netcdf: fix bad bash scripting leading to failed tests

If USE=-mpi, a file in src_test is NOT sedded to fix a bug in the file,
because the file does not exist. But this condition was incorrectly
coded.

In bash:

```
cmd1 && cmd2 || cmd3
```

is a code smell. If either of the first two commands fails, the third
command is run -- in this case, die. In other words, the first two
commands were *supposed* to be "only run cmd2 if it makes sense to".
Instead, if it "doesn't make sense to" run cmd2, the die was triggered.

A more general solution is to spec the build format to require all
commands to pass without manually `die`ing (leading to the use of &&
ceasing in general), but that is not how portage works. Either way, the
solution is using `if` as intended.

ref. https://mywiki.wooledge.org/BashGuide/TestsAndConditionals

Closes: https://bugs.gentoo.org/933136
Signed-off-by: Eli Schwartz <eschwartz93@gmail.com>
Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/sci-libs/netcdf/netcdf-4.9.2-r1.ebuild b/sci-libs/netcdf/netcdf-4.9.2-r1.ebuild
index 458001188497..a751713a52c2 100644
--- a/sci-libs/netcdf/netcdf-4.9.2-r1.ebuild
+++ b/sci-libs/netcdf/netcdf-4.9.2-r1.ebuild
@@ -89,8 +89,9 @@ src_configure() {
 }
 
 src_test() {
-	[[ -f "${BUILD_DIR}/nc_test4/run_par_test.sh" ]] && \
-	sed -e 's/mpiexec/mpiexec --use-hwthread-cpus/g' -i "${BUILD_DIR}/nc_test4/run_par_test.sh" || die
+	if [[ -f "${BUILD_DIR}/nc_test4/run_par_test.sh" ]]; then
+		sed -e 's/mpiexec/mpiexec --use-hwthread-cpus/g' -i "${BUILD_DIR}/nc_test4/run_par_test.sh" || die
+	fi
 
 	cmake_src_test
 }