The SheetJS Libraries should be free and clear to use in your projects. In order to maintain that, every contributor must be vigilant.
There have been many projects in the past that have been very lax regarding licensing, and we are of the opinion that those are ticking timebombs and that no corporate product should depend on them.
These are pretty short reads and emphasize the importance of proper licensing:
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https://github.com/kennethreitz/tablib/issues/114 (discussion of other tools)
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http://www.codinghorror.com/blog/2007/04/pick-a-license-any-license.html
Before thinking about contributing, make sure that:
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You are not, nor have ever been, an employee of Microsoft Corporation.
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You have not signed any NDAs or Shared Source Agreements with Microsoft Corporation or a subsidiary
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You have not consulted any existing relevant codebase (if you have, please take note of which codebases were consulted).
If you cannot attest to each of these items, the best approach is to raise an issue. If it is a particularly high-priority issue, please drop an email to [email protected] and it will be prioritized.
Keep these in mind as you work:
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Your contributions are your original work. Take note of any resources you consult in the process (and be extra careful not to use unlicensed code on the internet.
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You are working on your own time. Unless they explicitly grant permission, your employer may be the ultimate owner of your IP
Before contributions are merged, you will receive an email (at the address associated with the git commit) and will be asked to confirm the aforementioned items.