Implement "output.hashCharacters" option to define character set for file hashes

[lukastaegert]

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:

• resolves Expose code in entryFileNames, chunkFileNames, and assetFileNames #5362

Description

This adds a new option output.hashCharacters that can take one of "hex", "base36" and "base64".

• The default is "base64" and corresponds to the current hashes.
• "base36" only uses lower-case letters and numbers.
• "hex" only uses hexadecimal hashes as in Rollup <= 3

This should mainly help people who struggle with the use of upper- and lower-case letters.

Note that this changes all current file hashes as the base64 conversion is done in a slightly different way.

[vercel]

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[github-actions]

Thank you for your contribution! ❤️

You can try out this pull request locally by installing Rollup via

npm install rollup/rollup#gh-5362_hash_characters

Notice: Ensure you have installed Rust nightly. If you haven't installed it yet, please first see https://www.rust-lang.org/tools/install to learn how to download Rustup and install Rust, then see https://rust-lang.github.io/rustup/concepts/channels.html to learn how to install Rust nightly.

or load it into the REPL:
https://rollup-2ytnesdsb-rollup-js.vercel.app/repl/?pr=5371

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (14425f9) 98.81% compared to head (9e5dd8e) 98.81%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5371   +/-   ##
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  Coverage   98.81%   98.81%           
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  Files         232      232           
  Lines        8997     9007   +10     
  Branches     2347     2350    +3     
=======================================
+ Hits         8890     8900   +10     
  Misses         46       46           
  Partials       61       61           

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[github-actions]

This PR has been released as part of rollup@4.10.0. You can test it via npm install rollup.