Migrate to oxfmt and oxlint

[kibertoad]

This preserves original formatting and style rules to a maximum extent possible, while introducing new ones and speeding up the check process dramatically.

[Copilot]

Pull request overview

This PR migrates formatting and linting from Prettier/ESLint to oxfmt/oxlint, aiming to preserve existing style while speeding up checks and introducing updated rules/configuration.

Changes:

• Replaced ESLint + Prettier setup with oxlint and oxfmt (new configs, updated scripts, removed old configs/ignores).
• Reformatted a large portion of JS/TS/MD files to align with the new formatter output.
• Updated CI and developer workflows to run the new lint/format commands.

Reviewed changes

Copilot reviewed 133 out of 137 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
vitest.config.js	Reformatted Vitest config to new quote/format style.
types/test.ts	Reformatted TS typing tests to oxfmt output.
types/index.d.ts	Reformatted type declarations and adjusted formatting consistency.
tests/print-script.js	Reformatted debug utility script.
tests/integration/webpack-test/webpack.config.js	Reformatted webpack integration config.
tests/integration/webpack-test/src/test-template.handlebars	Trimmed/normalized template file formatting.
tests/integration/webpack-test/src/handlebars-wildcard-import-test.js	Reformatted integration test source.
tests/integration/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js	Reformatted integration test source.
tests/integration/webpack-test/src/handlebars-runtime-test.js	Reformatted runtime integration test.
tests/integration/webpack-test/src/handlebars-require-vs-import-test.js	Reformatted require vs import test.
tests/integration/webpack-test/src/handlebars-loader-test.js	Reformatted loader integration test.
tests/integration/webpack-test/src/handlebars-esm-import-test.js	Reformatted ESM import test.
tests/integration/webpack-test/src/handlebars-default-import-test.js	Reformatted default import test.
tests/integration/webpack-test/src/handlebars-default-import-pre-4.2-test.js	Reformatted legacy default import test.
tests/integration/webpack-test/src/.eslintrc.js	Removed per-subproject ESLint config (obsolete with oxlint).
tests/integration/webpack-test/package.json	Normalized JSON formatting/order.
tests/integration/webpack-babel-test/webpack.config.js	Reformatted webpack+babel integration config.
tests/integration/webpack-babel-test/src/handlebars-inline-precompile-test.js	Reformatted inline-precompile test.
tests/integration/webpack-babel-test/src/.eslintrc.js	Removed per-subproject ESLint config (obsolete with oxlint).
tests/integration/webpack-babel-test/package.json	Normalized JSON formatting/order.
tests/integration/webpack-babel-test/.babelrc	Normalized JSON formatting and comment indentation.
tests/integration/rollup-test/src/index.js	Reformatted rollup integration source.
tests/integration/rollup-test/rollup.config.js	Reformatted rollup config.
tests/integration/rollup-test/package.json	Normalized JSON formatting/order.
tests/integration/multi-nodejs-test/run-handlebars.js	Reformatted multi-node integration runner.
tests/integration/multi-nodejs-test/package.json	Normalized JSON formatting/order.
tests/integration/multi-nodejs-test/.eslintrc.js	Removed per-subproject ESLint config (obsolete with oxlint).
tests/browser/tests/lib.spec.js	Reformatted browser smoke tests.
tests/browser/playwright.config.js	Reformatted Playwright config.
tests/browser/.eslintrc.js	Removed per-subproject ESLint config (obsolete with oxlint).
tests/bench/util/template-runner.js	Reformatted benchmark runner utility.
tests/bench/util/benchwarmer.js	Reformatted benchmark helper; modernized some string building.
tests/bench/throughput.js	Reformatted throughput benchmark.
tests/bench/templates/variables.js	Reformatted benchmark template fixture.
tests/bench/templates/subexpression.js	Reformatted benchmark template fixture.
tests/bench/templates/string.js	Reformatted benchmark template fixture.
tests/bench/templates/paths.js	Reformatted benchmark template fixture.
tests/bench/templates/partial.js	Reformatted benchmark template fixture.
tests/bench/templates/partial-recursion.js	Reformatted benchmark template fixture.
tests/bench/templates/object.js	Reformatted benchmark template fixture.
tests/bench/templates/object-mustache.js	Reformatted benchmark template fixture.
tests/bench/templates/index.js	Reformatted benchmark template index.
tests/bench/templates/depth-2.js	Reformatted benchmark template fixture.
tests/bench/templates/depth-1.js	Reformatted benchmark template fixture.
tests/bench/templates/data.js	Reformatted benchmark template fixture.
tests/bench/templates/complex.js	Reformatted benchmark template fixture.
tests/bench/templates/complex.handlebars	Replaced legacy inverse markers with {{else}} formatting.
tests/bench/templates/array-mustache.js	Reformatted benchmark template fixture.
tests/bench/templates/array-each.js	Reformatted benchmark template fixture.
tests/bench/templates/arguments.js	Reformatted benchmark template fixture.
tests/bench/precompile-size.js	Reformatted benchmark script.
tests/bench/index.js	Reformatted benchmark index.
tests/bench/dist-size.js	Reformatted benchmark script.
tests/bench/.eslintrc.js	Removed bench ESLint override config (obsolete with oxlint).
tasks/version.js	Reformatted task script and string literals.
tasks/util/git.js	Reformatted utility and adjusted minor string logic.
tasks/util/exec-file.js	Reformatted utility.
tasks/tests/git.test.js	Reformatted tests to new style.
tasks/tests/bin.test.js	Reformatted tests to new style.
tasks/tests/.eslintrc.js	Removed tasks tests ESLint globals (replaced by oxlint overrides).
tasks/publish-to-aws.js	Reformatted AWS publish task.
tasks/metrics.js	Reformatted metrics task and minor string handling.
tasks/.eslintrc.js	Removed tasks ESLint override config (obsolete with oxlint).
spec/whitespace-control.js	Reformatted spec tests.
spec/utils.js	Reformatted spec tests.
spec/umd.html	Reformatted HTML and JS snippets (self-closing meta tags, quotes).
spec/umd-runtime.html	Reformatted HTML and JS snippets (self-closing meta tags, quotes).
spec/subexpressions.js	Reformatted spec tests.
spec/strict.js	Reformatted spec tests.
spec/spec.js	Reformatted spec runner.
spec/source-map.js	Reformatted and modernized catch syntax.
spec/runtime.js	Reformatted spec tests.
spec/require.js	Reformatted require tests.
spec/mustache	Updated mustache spec submodule reference.
spec/javascript-compiler.js	Reformatted compiler API tests.
spec/index.html	Reformatted HTML and JS snippets (self-closing meta tags, quotes).
spec/env/node.js	Reformatted node test env script.
spec/env/common.js	Reformatted shared spec helpers.
spec/env/browser.js	Reformatted browser test env script.
spec/env/browser-vitest.js	Reformatted vitest browser env script.
spec/env/browser-vitest-pre.js	Reformatted vitest browser pre-setup script.
spec/compiler.js	Reformatted compiler specs.
spec/ast.js	Reformatted AST specs.
spec/.eslintrc.js	Removed spec ESLint globals/rules (replaced by oxlint overrides).
runtime.js	Reformatted runtime alias file.
runtime.d.ts	Reformatted and normalized module declaration.
release-notes.md	Reformatted markdown and code snippet quoting.
prettier.config.js	Removed Prettier config (replaced by oxfmt).
package.json	Switched scripts/deps from Prettier/ESLint to oxfmt/oxlint; updated lint-staged; reordered metadata.
lib/precompiler.js	Reformatted and updated string literals/trailing commas.
lib/index.js	Reformatted require paths and string literals.
lib/handlebars/utils.js	Reformatted and modified escape map (behavioral change).
lib/handlebars/safe-string.js	Reformatted string coercion.
lib/handlebars/runtime.js	Reformatted runtime module.
lib/handlebars/logger.js	Reformatted logger and string literals.
lib/handlebars/internal/wrapHelper.js	Reformatted type checks.
lib/handlebars/internal/proto-access.js	Reformatted proto-access logic and messages.
lib/handlebars/helpers/with.js	Reformatted helper registration and errors.
lib/handlebars/helpers/lookup.js	Reformatted helper registration.
lib/handlebars/helpers/log.js	Reformatted helper registration.
lib/handlebars/helpers/if.js	Reformatted helper registration and internal access.
lib/handlebars/helpers/helper-missing.js	Reformatted helper registration and error formatting.
lib/handlebars/helpers/each.js	Reformatted helper and minor string init changes.
lib/handlebars/helpers/block-helper-missing.js	Reformatted helper registration and imports.
lib/handlebars/helpers.js	Reformatted imports.
lib/handlebars/decorators/inline.js	Reformatted decorator registration.
lib/handlebars/decorators.js	Reformatted imports.
lib/handlebars/compiler/compiler.js	Reformatted compiler implementation and string literals.
lib/handlebars/compiler/code-gen.js	Reformatted codegen module and added oxlint suppression comment.
lib/handlebars/compiler/ast.js	Reformatted AST helper checks.
lib/handlebars/base.js	Reformatted base module constants and messages.
lib/handlebars.runtime.js	Reformatted runtime entry and default export key access.
lib/handlebars.js	Reformatted main ESM entry and default export key access.
lib/.eslintrc.js	Removed lib ESLint override (obsolete with oxlint).
docs/compiler-api.md	Reformatted docs and code samples.
bin/handlebars.js	Reformatted CLI options definitions.
README.md	Converted setext headings to ATX headings and reformatted examples/lists.
Gruntfile.js	Reformatted task configuration and strings.
.prettierignore	Updated to act as oxfmt ignore source; added ignore patterns for template files.
.oxlintrc.json	Added oxlint configuration with env/rule overrides.
.oxfmtrc.json	Added oxfmt configuration.
.github/workflows/release.yml	Normalized YAML quoting/style.
.github/workflows/ci.yml	Normalized YAML quoting/style.
.git-blame-ignore-revs	Added formatter migration revision to ignore list.
.eslintrc.js	Removed ESLint config (replaced by oxlint).
.eslintignore	Removed ESLint ignore file (replaced by oxlint ignorePatterns / .prettierignore usage).

Comments suppressed due to low confidence (2)

lib/handlebars/utils.js:1

• The HTML escape entity mappings for &, <, >, and \" lost their trailing semicolons (e.g. &amp instead of &). This changes escaping output and will break HTML validity and existing expectations/tests (e.g. foo<&...). Restore the correct entity strings with semicolons (keep the ones that already have them like ').
  spec/javascript-compiler.js:1
• This array literal is now invalid / unintended JavaScript due to the comma operator inside parentheses: [('123test', 'abc()', 'abc.cde')] evaluates to ['abc.cde']. It should be an array of three strings so each invalid variable name is tested. Replace it with a normal array literal containing the three string entries.

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[Copilot]

The configured quoteStyle is single, but many formatted changes in this PR use double quotes in JS/TS (e.g. imports and string literals). This mismatch will cause ongoing churn (format runs flipping quotes back/forth) or indicate the config isn't being picked up. Align the oxfmt config with the repository's actual formatted output (either switch quoteStyle to double or re-run oxfmt so code matches single).

Suggested change

	"quoteStyle": "single",
	"quoteStyle": "double",

[kibertoad]

superseded by #2130