fix: pass relative ignore paths when scanning public assets

[danielroe]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

We now support ignoring public assets (#945) but at the moment we do not resolve/relativise paths, so an ignore pattern of public/test.txt would not match test.txt when scanning the public/ directory. The issue is that it then becomes impossible to specify ignore patterns that only apply in public directories, for example.

This is a change in behaviour but I think more intuitive.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #1632 (9e56fcc) into main (6c67404) will increase coverage by 0.10%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1632      +/-   ##
==========================================
+ Coverage   77.64%   77.74%   +0.10%     
==========================================
  Files          76       76              
  Lines        7818     7824       +6     
  Branches      795      803       +8     
==========================================
+ Hits         6070     6083      +13     
+ Misses       1745     1739       -6     
+ Partials        3        2       -1     

Files Changed	Coverage Δ
src/build.ts	84.40% <100.00%> (+0.16%)	⬆️

... and 2 files with indirect coverage changes

[pi0]

This might make issues with multi-layer when relative path is outside of main srcDir but inside other layer's source dir... But let's try and see!