Work on #410 - allow input directories to be optional in Cdm toolchains

[mjordan]

Github issue: #410

What does this Pull Request do?

Fixes --checkconfig so it considers input directories optional in CONTENTdm toolchains.

What's new?

--checkconfig no longer shows a notice when input directories are not configured: “PHP Notice: Uninitialized string offset: 0 in /Users/barnes26/dev/mik/src/config/Config.php on line 273.”

How should this be tested?

We need to smoke test test two situations, one where there are no input directories configured and one where there are.

• Check out the issue-410 branch
• Create the input directories specified in the sample .ini file:

mkdir /tmp/issue410_1
mkdir /tmp/issue410_2
mkdir /tmp/issue410_3

• Using the sample .ini file, run MIK with its --checkconfig option:

./mik -c issue-410.ini --cc all

You should see the following output:

Commencing MIK.
Mapping snippets are OK
Paths are OK
CONTENTdm aliases are OK
Input directory paths are OK.
URLs are OK

• Uncomment the line ; input_directories = and comment out the other instances of input_directories[]
• Rerun MIK: ./mik -c issue-410.ini --cc all

You should see the following output:

Commencing MIK.
Mapping snippets are OK
Paths are OK
CONTENTdm aliases are OK
No input directory paths are defined.
URLs are OK

Interested parties

@MarcusBarnes

[MarcusBarnes]

Smoke tested the two situations and got the expected results. Thank you @mjordan.