feat: unique aliases per locale

[jorrit]

What does it do?

Adds an option to generate unique urls per locale instead of across the entire site.

Why is it needed?

When the locale is already part of the URL (for instance, in the domain name or an externally provided path prefix) the URL does not need to be unique for the site, but just for the locale.

How to test it?

1. Create Strapi content with multiple locales but the same value for the fields in the placeholder(s).
2. Create URL patterns for these locales that are identical for the locales
3. Set the new config option unique_per_locale to true.

Related issue(s)/PR(s)

Addresses #289

[changeset-bot]

🦋 Changeset detected

Latest commit: 1892da5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
strapi-plugin-webtools	Minor
docs	Patch

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 40.98%. Comparing base (c098a92) to head (1892da5).
Report is 10 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #291      +/-   ##
==========================================
- Coverage   43.10%   40.98%   -2.12%     
==========================================
  Files           2        2              
  Lines         638      627      -11     
  Branches      157      153       -4     
==========================================
- Hits          275      257      -18     
- Misses        291      296       +5     
- Partials       72       74       +2     

Flag	Coverage Δ
unit	40.98% <100.00%> (-2.12%)	⬇️

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[boazpoolman]

Hi @jorrit,

Thanks for this PR. This looks like a well documented and tested feature that will be a great addition to the plugin!

I've review your work and at first glance it looks to be perfectly in order. One thing I did notice is there is one test case that isn't working as expected, which is the following:

This PR, without putting unique_per_locale on true, allows duplicate URLs across different translations of the same document. This is unexpected behavior. In this case it should suffix the URLs with -0. I've written a test case for this specific situation which should be failing now. Could you address that?

Other than that it seems to be working great!

[boazpoolman]

LGTM!