New command: `realpath`

[cybercoder-naj]

Resolves #93

Closes #92

Checklist

• [x] I have made a change to this repository, be it functionality, testing, documentation, spelling, or grammar.
• [x] I updated my branch with the master branch.
• [x] I have added the necessary testing to prove my fix is effective/my feature works (or I did not modify functionality).
• [x] I have added necessary documentation about the functionality in an appropriate .md file.
• [x] I have appropriately commented any code I have modified

Short description of what this PR does:

• A new command realpath is added to echo the path to the a note by the name provided.
• If no note was provided, realpath would echo $NOTES_DIRECTORY.
• If a note which does not exist was provided, realpath would echo the future path to that file.
• As a consequence, A user can run cd "$(notes realpath)" to cd into $NOTES_DIRECTORY.

[cybercoder-naj]

I have an issue by running a particular test case. If you have have a look at my test case here, it runs indefinitely. Funny enough, a Ctrl+C (SIGINT) does not stop the test case; force quitting the terminal is the only option. However, the other test cases work. Can someone please guide why this error occurs and how to fix it?

[cybercoder-naj]

I have an issue by running a particular test case. If you have have a look at my test case here, it runs indefinitely.

You're not overriding EDITOR anywhere in the test case, so the notes new in that test is actually opening up your real editor somewhere, and blocking while until that exits.

You can use something like export EDITOR=touch to skip that, as in some of the other similar tests.

I think that's the only changed required here though, otherwise this all looks good to me! Very clean. If you patch that up and check it works, I'll merge this 👍

Thanks for your help. The test cases pass successfully now.

[pimterry]

Perfect, thanks! :+1: