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Bootstrap Bundle

A lightweight Symfony bundle that helps you scaffold and compile Bootstrap SCSS with scssphp. It ships three console commands:

• bootstrap:init — scaffolds SCSS entry files under assets/scss/.
• bootstrap:compile — compiles SCSS to CSS (with sensible defaults and vendor‑aware import paths).
• bootstrap:purge — purges compiled Bootstrap CSS by scanning your templates.

🚀 Features

• Ready‑to‑use SCSS entries (light and dark)
• SCSS → CSS via scssphp (pure PHP, no Node required)
• Writes readable and minified CSS in one run
• Optional source maps for each output (--source-map)
• Include paths for vendor/twbs/bootstrap/scss out of the box
• Purge Bootstrap CSS based on your templates (bootstrap:purge)
• Clean defaults and sensible paths

⚙️ Requirements

• PHP 8.2 or higher
• Symfony 6.4 or 7.x (framework‑bundle, console)
• Composer
• Dependencies:
  • twbs/bootstrap (>= 5.3)
  • scssphp/scssphp (^2.0)
  • jbsnewmedia/css-purger (^1.0)

Note: This is a regular Symfony bundle and expects a Symfony kernel (it is auto‑registered).

📦 Installation

Install via Composer:

If not already present, Composer will install the required packages (twbs/bootstrap, scssphp/scssphp).

📋 Usage

1) Scaffold SCSS entries

Create the default SCSS entry files under assets/scss/:

Files created:

• assets/scss/bootstrap5-custom.scss
• assets/scss/bootstrap5-custom-dark.scss

Both entries import Bootstrap after your variable overrides in the correct order.

2) Compile SCSS → CSS

Compile with sensible defaults:

Defaults:

• Input: assets/scss/bootstrap5-custom.scss
• Outputs:
  • readable CSS → assets/css/bootstrap.css
  • minified CSS → assets/css/bootstrap.min.css

Readable output path can be adjusted via --output-normal.

Generate a source map:

Custom input/output paths:

3) Purge unused Bootstrap CSS (optional)

After compiling, you can purge unused selectors by scanning your templates:

🧩 Command reference

bootstrap:init

Scaffolds Bootstrap SCSS entry files.

• Options:
  • --dry-run — show what would be written without creating files
  • -f, --force — overwrite existing files
• Alias: boostrap:init (common typo)

Creates the following files in assets/scss/:

• bootstrap5-custom.scss (light)
• bootstrap5-custom-dark.scss (dark)

Recommended order inside the files: functions → your variable overrides → Bootstrap import.

bootstrap:compile

Compiles SCSS to CSS using scssphp.

• Arguments:
  • input (optional) — SCSS entry file; default assets/scss/bootstrap5-custom.scss
  • output (optional) — minified CSS output file; default assets/css/bootstrap.min.css
• Options:
  • --output-normal, -O — readable (non‑minified) CSS output path; default assets/css/bootstrap.css
  • --source-map — write a .map file next to each CSS output (readable and minified)

Preconfigured include paths (in this order):

1. vendor/twbs/bootstrap/scss
2. vendor
3. assets/scss
4. assets

This allows imports like:

bootstrap:purge

Purges Bootstrap CSS by scanning your templates and keeping only the selectors that are found.

• Options:
  • --input, -i — path to input CSS file; default assets/css/bootstrap.css
  • --output, -o — path to write the purged CSS; default assets/css/bootstrap-purged.css
  • --templates-dir — template directories to scan (multiple allowed)
  • --include-dir, -D — additional directories to scan (multiple allowed)
  • --include-file, -F — additional files to scan (multiple allowed)
  • --selector, -S — selectors to always keep (multiple allowed)
  • --readable, -r — generate human‑readable (pretty) CSS output
  • --dry-run — show stats without writing the output file

Source map behavior

When using --source-map, a map is written for each output:

• Readable CSS: assets/css/bootstrap.css + map assets/css/bootstrap.css.map
• Minified CSS: assets/css/bootstrap.min.css + map assets/css/bootstrap.min.css.map

Example console output:

If no map is written even though --source-map is set, please check that your SCSS source actually produces output and that the defaults were not overridden.

✍️ Example SCSS

Light (created by bootstrap:init):

Dark (created by bootstrap:init):

🧭 Troubleshooting

• Input file not found
  • Run php bin/console bootstrap:init to create default entries, or pass your own path to bootstrap:compile.
• Bootstrap imports not resolved
  • Ensure twbs/bootstrap is installed: composer require twbs/bootstrap.
• Source map comment is present, but no file is written
  • With the current implementation the map is written after compilation. Check that --source-map is set and your SCSS produces content.
• scssphp versions
  • This bundle targets scssphp/scssphp ^2.0. If you use another major version, adjust accordingly.

ℹ️ Git information

• Latest tag: 1.0.2
• Last commit: ffb3318 — 2026-02-09

📜 License

Licensed under the MIT License. See the LICENSE file for details.

Developed by Juergen Schwind and contributors.

🤝 Contribution

Contributions are welcome! Please fork the repository and open a pull request. For larger changes, consider opening an issue first to discuss your idea.

📫 Contact

For questions or issues, please open an issue or a pull request in the repository.

— Simple Bootstrap SCSS scaffolding and compilation, Composer‑native.