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feat: support [uniqueName] and [uniquename] placeholders in template paths#21155

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alexander-akait merged 2 commits into
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feat/uniquename-placeholder
Jun 10, 2026
Merged

feat: support [uniqueName] and [uniquename] placeholders in template paths#21155
alexander-akait merged 2 commits into
mainfrom
feat/uniquename-placeholder

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Summary

Resolves the TODO move these things into interpolate in CssIcssExportDependency for [uniqueName]: the placeholder (plus a lowercase [uniquename] alias) is now a first-class interpolate placeholder, defaulting from output.uniqueName, so it resolves in all asset path templates (output.filename, publicPath, chunkFilename, assetModuleFilename, localIdentName, …).

What kind of change does this PR introduce?

feat

Did you add tests for your changes?

Yes — test/TemplatedPathPlugin.unittest.js, new test/configCases/output/unique-name-placeholder/, and extended test/configCases/css/local-ident-name/.

Does this PR introduce a breaking change?

No.

If relevant, what needs to be documented once your changes are merged or what have you already documented?

Document [uniqueName] / [uniquename] as an available placeholder in template paths on the docs site.

Use of AI

Implemented with Claude Code under my direction; I reviewed all changes and test results.

https://claude.ai/code/session_013dWoENYgy5kQ1FEcdpU92W


Generated by Claude Code

…paths

Resolves the TODO in CssIcssExportDependency by moving the [uniqueName]
replacement into TemplatedPathPlugin's interpolate. The placeholder is
now registered like every other one (with a lowercase [uniquename]
alias) and defaults from output.uniqueName for all asset path templates.

https://claude.ai/code/session_013dWoENYgy5kQ1FEcdpU92W
@changeset-bot

changeset-bot Bot commented Jun 10, 2026

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🦋 Changeset detected

Latest commit: 27e7944

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

This PR includes changesets to release 1 package
Name Type
webpack Minor

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Click here if you're a maintainer who wants to add another changeset to this PR

@github-actions

github-actions Bot commented Jun 10, 2026

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This PR is packaged and the instant preview is available (c387c00).

Install it locally:

  • npm
npm i -D webpack@https://pkg.pr.new/webpack@c387c00
  • yarn
yarn add -D webpack@https://pkg.pr.new/webpack@c387c00
  • pnpm
pnpm add -D webpack@https://pkg.pr.new/webpack@c387c00

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Types Coverage

Coverage after merging feat/uniquename-placeholder into main will be
99.33%
Coverage Report
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@codecov

codecov Bot commented Jun 10, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.35%. Comparing base (0afe292) to head (27e7944).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main   #21155   +/-   ##
=======================================
  Coverage   92.35%   92.35%           
=======================================
  Files         581      581           
  Lines       63332    63381   +49     
  Branches    17507    17527   +20     
=======================================
+ Hits        58488    58537   +49     
  Misses       4844     4844           
Flag Coverage Δ
css-parsing 28.68% <58.33%> (+0.03%) ⬆️
html5lib 31.09% <58.33%> (+0.03%) ⬆️
integration 88.54% <100.00%> (+<0.01%) ⬆️
test262 45.36% <58.33%> (+0.02%) ⬆️
unit 41.18% <100.00%> (+0.03%) ⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

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@codspeed-hq

codspeed-hq Bot commented Jun 10, 2026

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Merging this PR will improve performance by 86.4%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 3 improved benchmarks
✅ 141 untouched benchmarks

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Memory benchmark "asset-modules-inline", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' 1,296 KB 318.7 KB ×4.1
Memory benchmark "asset-modules-bytes", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' 321.4 KB 248 KB +29.6%
Memory benchmark "devtool-eval", scenario '{"name":"mode-production","mode":"production"}' 7.7 MB 6.3 MB +22.89%

Tip

Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.


Comparing feat/uniquename-placeholder (27e7944) with main (7bf5a72)

Open in CodSpeed

@alexander-akait alexander-akait merged commit c387c00 into main Jun 10, 2026
67 checks passed
@alexander-akait alexander-akait deleted the feat/uniquename-placeholder branch June 10, 2026 08:45
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