POSIX supported or bash in particular?

[jasonkarns]

I run shellcheck on all my shell code (or rather, it's run automatically via syntastic, hence how I noticed some of the issues).

Quite a few of the errors/warnings that it is reporting are POSIX compliance issues. Shellcheck only does posix compliance if the shebang is sh. So is sh-semver intended to be POSIX compliant? If so, I'll submit some PRs with the posix warnings resolved. If not, I recommend we change the shebang to bash.

[jasonkarns]

I've resolved every shellcheck error and warning except: all the usages of local and the array-like behavior of semver_sort.

My personal vote is to switch the shebang to bash which would make all the local actually mean something. And would give us true array capability.

[qzb]

I didn't know this tool, it works great, thanks. Initially it was intended to be POSIX compliant, but I don't think it is a good idea anymore. As you suggested, I've changed shebang to bash. If you want to make a pull request fixing rest of issues, it will be appreciated.