Support shortened commit SHAs in URLs

[lafriks]

Fixes #6450

Closes #6452

[codecov-io]

Codecov Report

Merging #13686 (9003d75) into master (24330f7) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #13686      +/-   ##
==========================================
- Coverage   42.27%   42.26%   -0.02%     
==========================================
  Files         697      697              
  Lines       76616    76618       +2     
==========================================
- Hits        32389    32380       -9     
- Misses      38908    38915       +7     
- Partials     5319     5323       +4     

Impacted Files	Coverage Δ
modules/context/repo.go	54.82% <100.00%> (-0.02%)	⬇️
modules/util/timer.go	42.85% <0.00%> (-42.86%)	⬇️
modules/queue/workerpool.go	61.22% <0.00%> (-0.82%)	⬇️
models/gpg_key.go	53.33% <0.00%> (-0.58%)	⬇️
services/pull/pull.go	40.78% <0.00%> (-0.50%)	⬇️

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[techknowlogick]

Feedback from other PR:

Can we support the shortened sha but redirect to the full actual one ?

[lafriks]

@techknowlogick I don't think that's needed as it does kind of break desired behavior imho and other (ex. Github and Gitlab) also does not do redirection

[6543]

hmm redirection could be a feature ...

[lafriks]

Also we don't do redirection also in other places where we already support short sha urls. Also if later added to API it would be even undesirable

[techknowlogick]

In that case is it possible to add rel=canoical tags to the commit page with the full sha (more info: https://developers.google.com/search/docs/advanced/crawling/consolidate-duplicate-urls) so that search engines don't duplicate the information?

[lafriks]

@techknowlogick it's not fool proof but added :D

[techknowlogick]

Thanks :)

[techknowlogick]

🚀