Expansion Pack

A self-contained VS Code extension that replaces a curated set of utility extensions with trusted local implementations.

The original copy-to feature remains available as one feature inside Expansion Pack.

Migration Status

Original extension	Expansion Pack status	What it does
Bookmarks	Implemented core	Toggle, list, clear, and navigate line bookmarks in the active workspace.
Markdown Preview Mermaid Support	Implemented core	Render Mermaid fenced code blocks inside Markdown preview.
Better TOML	Implemented core	Add TOML file recognition, syntax highlighting, brackets, comments, and basic diagnostics.
npm Intellisense	Implemented core	Suggest packages from workspace package.json inside import and require strings.
Bracket Select	Implemented core	Select text inside or including the nearest bracket pair.
PostCSS Language Support	Implemented core	Add PostCSS file recognition, syntax highlighting, brackets, comments, and basic diagnostics.
Comment Anchors	Implemented core	Highlight and list configured anchor tags such as TODO, FIXME, and ANCHOR.
Code Runner	Implemented core	Run the active file in a reusable terminal using a language executor map.
Git Tree Compare	Implemented core	Compare the working tree against another git ref in an Explorer tree view.
Color Highlight	Implemented core	Highlight visible CSS color literals in the editor.
Copy File Name	Implemented core	Copy selected Explorer item names, with or without extensions.
Git File History	Implemented core	Browse commit history for the current file and open commit diffs.
SQLite Viewer	Implemented core	Inspect SQLite table previews in a read-only webview.
YAML	Implemented core	Add YAML file recognition, syntax highlighting, brackets, comments, and basic diagnostics.
Copy File Path with Line Number	Implemented core	Copy the active file path with current line and column.
Surround	Implemented core	Wrap current selections with parentheses, quotes, brackets, braces, or backticks.

Features

Copy To

1. Right-click a file or folder in Explorer.
2. Select Expansion Pack: Copy to....
3. Choose a configured preset or Browse....

Settings:

{
  "expansionPack.copyTo.destinationPath": "~/Downloads",
  "expansionPack.copyTo.presets": [
    { "label": "Downloads", "path": "~/Downloads" }
  ]
}

Legacy copyTo.destinationPath and copyTo.presets settings are still read as fallbacks.

Bookmarks

Use the Command Palette:

• Expansion Pack: Toggle Bookmark
• Expansion Pack: List Bookmarks
• Expansion Pack: Go to Next Bookmark
• Expansion Pack: Go to Previous Bookmark
• Expansion Pack: Clear Bookmarks

Bookmarked lines are highlighted in visible editors and stored in workspace state.

Markdown Preview Mermaid Support

1. Open a Markdown file.
2. Add a fenced code block with mermaid as the language.
3. Run VS Code's built-in Markdown: Open Preview command.

Example:

```mermaid
graph TD
  A[Start] --> B[Done]
```

Expansion Pack renders the diagram in the Markdown preview using the bundled mermaid package.

{
  "expansionPack.markdownMermaid.languages": ["mermaid"]
}

Better TOML

Open .toml files or Pipfile.

Expansion Pack provides TOML language recognition, comments, bracket pairing, syntax highlighting, and basic diagnostics for duplicate keys and invalid table headers.

npm Intellisense

1. Open a JavaScript or TypeScript file.
2. Type inside an import source, for example import React from ".
3. Completion suggestions include dependencies from workspace package.json files.

Bracket Select

Use the Command Palette or editor context menu:

• Expansion Pack: Select Inside Brackets
• Expansion Pack: Select Including Brackets

Supported bracket pairs are (), [], {}, and <>.

PostCSS Language Support

Open .pcss, .postcss, or .css files and choose PostCSS as the language mode when needed.

Expansion Pack provides PostCSS language recognition, block comments, bracket pairing, syntax highlighting for at-rules, variables, custom properties, selectors, values, and basic unmatched-brace diagnostics.

Comment Anchors

Comment Anchors scans open files and adds informational diagnostics for configured tags.

Use Expansion Pack: List Comment Anchors to jump to anchors in open files.

{
  "expansionPack.commentAnchors.tags": [
    "ANCHOR",
    "TODO",
    "FIXME",
    "NOTE",
    "REVIEW",
    "SECTION"
  ]
}

Code Runner

1. Open a file.
2. Run Expansion Pack: Run Code.
3. The file runs in the reusable Expansion Pack Runner terminal.

Default executors:

VS Code language id	Executor
javascript, javascriptreact	node
typescript, typescriptreact	npx ts-node
python	python3
ruby	ruby
php	php
shellscript	bash

Override executors with:

{
  "expansionPack.codeRunner.executorMap": {
    "typescript": "pnpm exec tsx {file}",
    "javascript": "node"
  },
  "expansionPack.codeRunner.saveBeforeRun": true
}

Git Tree Compare

1. Open a git workspace.
2. Open the Explorer side bar.
3. Use the Git Tree Compare view.
4. Use the branch icon to change the base ref, or the refresh icon to reload.
5. Select a changed file to open it, or use the item context menu to open a diff.

Color Highlight

Open a file containing color literals such as #ffcc00, rgb(255, 204, 0), or hsl(48, 100%, 50%).

Expansion Pack highlights matching literals in visible editors automatically.

Copy File Name

1. Right-click one or more files/folders in Explorer.
2. Select Expansion Pack: Copy File Name or Expansion Pack: Copy File Name Without Extension.
3. Names are copied to the clipboard, one per line.

Git File History

1. Open a file tracked by git.
2. Run Expansion Pack: Open Git File History from the Command Palette, editor context menu, or Explorer context menu.
3. Pick a commit.
4. Expansion Pack opens a diff for that file at the selected commit.

The command reads up to 50 commits with git log --follow.

SQLite Viewer

1. Right-click a .db, .sqlite, or .sqlite3 file.
2. Select Expansion Pack: Open SQLite Viewer.
3. Expansion Pack opens a read-only webview with table previews.

SQLite Viewer uses the local sqlite3 CLI and displays the first 100 rows per user table.

YAML

Open .yaml, .yml, .eyaml, or .eyml files.

Expansion Pack provides YAML language recognition, comments, bracket pairing, syntax highlighting, and basic diagnostics for tab indentation and suspicious mapping entries.

Copy File Path with Line Number

1. Put the cursor in an editor.
2. Run Expansion Pack: Copy File Path with Line Number or Expansion Pack: Copy Relative File Path with Line Number.
3. The clipboard receives path:line:column.

Surround

1. Select text in an editor.
2. Run Expansion Pack: Surround with....
3. Choose the wrapper pair.

Direct commands are also available for parentheses and double quotes.

Development

pnpm install
pnpm run lint
pnpm run typecheck
pnpm run build
pnpm run test:smoke
pnpm run verify
pnpm exec vsce package

pnpm run lint uses eslint-config-ts-prefixer and fails on warnings so ESLint stays at zero issues. pnpm run test:smoke launches VS Code with a temporary fixture workspace and checks the migrated command, language, diagnostic, clipboard, editor-selection, Git, and SQLite paths.

Marketplace Packaging

• Extension name: expansion-pack
• Publisher: laststance
• Icon: images/icon.png
• Entry point: dist/extension.js
• Build command: pnpm run build
• Verification command: pnpm run verify
• Package command: pnpm exec vsce package
• Third-party notices: THIRD_PARTY_NOTICES.md

Acknowledgements

Expansion Pack is a clean-room behavior recreation. No upstream source code, grammars, bundled assets, or license text from the original extensions has been copied into this repository. Mermaid rendering uses the bundled mermaid npm package; see THIRD_PARTY_NOTICES.md.

Original extension	Extension ID	Author / owner	Upstream license noted by GitHub API
Bookmarks	alefragnani.bookmarks@14.1.1	Alessandro Fragnani / alefragnani	GPL-3.0
Markdown Preview Mermaid Support	bierner.markdown-mermaid@1.32.1	Matt Bierner / mjbvz	MIT
Better TOML	bungcip.better-toml@0.3.2	bungcip	Not asserted by GitHub API
npm Intellisense	christian-kohler.npm-intellisense@1.4.5	Christian Kohler / ChristianKohler	MIT
Bracket Select	chunsen.bracket-select@2.0.2	wangchunsen	Not asserted by GitHub API
PostCSS Language Support	csstools.postcss@1.0.9	CSSTools / csstools	Not asserted by GitHub API
Comment Anchors	exodiusstudios.comment-anchors@1.10.4	Starlane Studios / StarlaneStudios	MIT
Code Runner	formulahendry.code-runner@0.12.2	Jun Han / formulahendry	MIT
Git Tree Compare	letmaik.git-tree-compare@1.20.0	Maik Schreiber / letmaik	MIT
Color Highlight	naumovs.color-highlight@2.8.0	Sergii Naumov / iamsergii	GPL-3.0
Copy File Name	ouweiya.copy-file-name@3.0.9	ouweiya	Not asserted by GitHub API
Git File History	pomber.git-file-history@1.0.1	pomber	MIT
SQLite Viewer	qwtel.sqlite-viewer@25.12.2	qwtel	Not asserted by GitHub API
YAML	redhat.vscode-yaml@1.23.0	Red Hat / redhat-developer	MIT
Copy File Path with Line Number	snwfdhmp.copy-file-path-with-line-number@0.0.1	snwfdhmp	No upstream repository provided
Surround	yatki.vscode-surround@1.5.0	yatki	MIT

License

This repository is currently licensed under ISC. Bundled third-party dependencies keep their own licenses as documented in THIRD_PARTY_NOTICES.md.