Add root_dir capability for multiple roots

[djsegal]

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Annotations for models in subdirectories of engines/subtrees/etc #291

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I believe this is similar to the following issues: #190, #131, #88

To get it to work on my project, I have the following 2 lines in auto_annotate_models.rake:

 'model_dir'            => ["app/models", "lib/subtree/app/models"],
 'root_dir'             => ["/", "lib/subtree"],

[ctran]

Is this supposed to be Rails.root? A slash doesn't seem to a correct default value from the caller/user perspective.

[djsegal]

• Thats true, we could just make the default ''
• The place where root_dir is used in will be unchanged:

File.join(root_directory, UNIT_TEST_DIR,  "%MODEL_NAME%_test.rb")

[ctran]

Could you make the change so I can accept the PR?

[djsegal]

@ctran I just finished the update. (i'll clean up the other PRs after the merge)

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One note, I did some minor refactoring:

• I added MATCHED_TYPES = %w(test fixture factory serializer scaffold) to top of lib/annotate/annotate_models.rb
• i default get_patterns to use MATCHED_TYPES, i.e. get_patterns(pattern_types=MATCHED_TYPES)

[ctran]

Awesome. Thanks.