Install fails with sha256sum

[Toghr]

When I try to instal plugin on centos 7 I get following error:

Validating Checksum.
sha256sum: invalid option -- 's'
Try 'sha256sum --help' for more information.
Failed to install helm-unittest

It's caused by this part:
curl -s -L "$PROJECT_CHECKSUM" | grep "$DOWNLOAD_FILE" | sha256sum -c -s

While -s is valid option for shasum

shasum --help
Usage: shasum [OPTION]... [FILE]...
Print or check SHA checksums.
...
  -s, --status          don't output anything, status code shows success

It's not ok for sha256sum:

sha256sum --help
Usage: sha256sum [OPTION]... [FILE]...
Print or check SHA256 (256-bit) checksums.
...
The following four options are useful only when verifying checksums:
      --status         don't output anything, status code shows success

Workarounds:
install shasum, it will be preferred over sha256sum
yum install -y perl-Digest-SHA

[quintush]

Hello @Toghr ,

I'm aware of the defect and also received a pullrequest to fix the problem (#73).
However the pullrequest does not fulfill the complete request so I started investigating other options.

In the mean time i noticed there are 3 versions of sha256sum.
1 version (used in apline) which allows the -s option
2 version which supports both -s and --status
3 the version which only supports --status

As i use the alpine version for the docker images i have created a branch in which i try to solve all combinations.
Still need to verify if all setups are working, but feel free to comment.

[Toghr]

@quintush thanks for Your quick reply. I was not aware of 'alpine' version. Indeed it does not support full: '--status' option which, I was hoping, could be a good solution :(