add copyright lines to all source files

[merobi-hub]

Signed-off-by: Michael Robinson merobi@gmail.com

Problem

The project's source files lack a copyright, but inclusion of a copyright notice in every source file is an expectation of the LFAI.

Solution

This PR adds a copyright line to source files across the project (.py, .java, .sh), excluding non-source files and files where the line could create an issue.

Checklist

• You've signed-off your work
• Your changes are accompanied by tests (if relevant)
• Your change contains a small diff and is self-contained
• You've updated any relevant documentation (if relevant)
• You've updated the CHANGELOG.md with details about your change under the "Unreleased" section (if relevant, depending on the change, this may not be necessary)
• You've versioned your .sql database schema migration according to Flyway's naming convention (if relevant)

[mobuchowski]

From the experience of doing the same in OpenLineage project - it would be better if this was a series of commits, each focused on particular file type only. This would allow spotting problems with particular file types.

For example, the copyright statement being top of file in .sh files is wrong - it makes shebang not work properly. This is not easily found when looking through 300+ files 😉

[merobi-hub]

Thanks, Maciej. I separated the changes into individual commits, one per file type.

[codecov]

Codecov Report

Merging #1996 (c9bf83f) into main (2783f4e) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #1996   +/-   ##
=========================================
  Coverage     78.89%   78.89%           
  Complexity     1014     1014           
=========================================
  Files           197      197           
  Lines          5548     5548           
  Branches        421      421           
=========================================
  Hits           4377     4377           
  Misses          724      724           
  Partials        447      447           

Impacted Files	Coverage Δ
api/src/main/java/marquez/MarquezApp.java	64.86% <ø> (ø)
api/src/main/java/marquez/MarquezConfig.java	100.00% <ø> (ø)
api/src/main/java/marquez/MarquezContext.java	84.93% <ø> (ø)
api/src/main/java/marquez/api/BaseResource.java	80.95% <ø> (ø)
api/src/main/java/marquez/api/DatasetResource.java	94.23% <ø> (ø)
api/src/main/java/marquez/api/JobResource.java	92.30% <ø> (ø)
...i/src/main/java/marquez/api/NamespaceResource.java	90.90% <ø> (ø)
...src/main/java/marquez/api/OpenLineageResource.java	84.21% <ø> (ø)
api/src/main/java/marquez/api/RunResource.java	86.66% <ø> (ø)
api/src/main/java/marquez/api/SearchResource.java	72.22% <ø> (ø)
... and 187 more

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[merobi-hub]

Hi @mobuchowski I made the requested change -- please review when you have a moment. Thanks.

[wslulciuc]

Thanks for adding the copyright to the source files, @merobi-hub! I did look over the files, and have the following suggestions:

• Remove the copyright from all *.txt and *.md files
• For *.sh files, the copyright has been added to the bottom of the scripts, and should be in the file header (I know this was done to address the comment by @mobuchowski, but ideally it should be in the header - see my suggestion below)
• Is there a way to combining the copyright and license in a single header? That is:

java

/* 
 * Copyright 2018-2022 contributors to the Marquez project
 * SPDX-License-Identifier: Apache-2.0
 */

bash

   
#!/bin/bash
#
# Copyright 2018-2022 contributors to the Marquez project
# SPDX-License-Identifier: Apache-2.0

py

# Copyright 2018-2022 contributors to the Marquez project
# SPDX-License-Identifier: Apache-2.0

[merobi-hub]

Thanks for the feedback, @wslulciuc . Curious about why you want the line removed from .md and .txt files, assuming they're original to the project. Can you clarify?
Reformatting the lines would mean starting over and debugging again. Are we okay with extending the timeline for this?
Thanks.

[wslulciuc]

Curious about why you want the line removed from .md and .txt files, assuming they're original to the project. Can you clarify?

The project MUST include a copyright statement in each source file

This is up for interpretation, but source files usually refer to code .java, .py, etc, and not docs. But ok I see, since the copyright for the *.md file is hidden using <!-- -->, you can leave it. Initially I had assumed it broke the formatting. For new docs, we'll want to add the copyright. Have you looked into adding the copyright to the files under docs/?

For the *.txt files, we can leave them but would address my most recent comment on the file web/src/fonts/Karla/OFL.txt

Reformatting the lines would mean starting over and debugging again. Are we okay with extending the timeline for this?

Normally, I won't care as much but this is such a rare and infrequent change that will be copied for all new source files that I'm ok with extending the timeline to use a more compact header at the top of the source files (like I outlined in my change request). I know, not fun and really sorry for the extra effort here. I owe you!

[merobi-hub]

Hi @mobuchowski and @wslulciuc , I think this is ready to be merged

[wslulciuc]

Amazing work, @merobi-hub! 💯 🥇