pubup 0.1.0

Automatically update pubspec.yaml dependency constraints to the latest resolvable versions across Dart and Flutter workspace packages.

pubup

A Dart CLI tool that automatically updates pubspec.yaml dependency constraints to the latest resolvable versions — across single packages and Dart/Flutter workspaces.

Unlike dart pub upgrade, which only updates pubspec.lock within existing constraints, pubup rewrites the version constraints in your pubspec.yaml files so they reflect what is actually resolvable today.

Installation

dart pub global activate pubup

Make sure ~/.pub-cache/bin is on your PATH.

Usage

Run from the root of any Dart or Flutter project:

# Preview what would change (no files modified)
pubup --dry-run

# Apply updates to all workspace packages
pubup

# Update only a specific package in a workspace
pubup --package my_package

# Skip dev_dependencies
pubup --no-dev

# Specify a custom project root
pubup --root /path/to/project

How it works

1. Discovers workspace packages from the root pubspec.yaml workspace: section. Falls back to the root package only if no workspace is defined.
2. Runs dart pub outdated --json --show-all (or flutter pub for Flutter packages) for each package.
3. Compares declared constraints in pubspec.yaml against the latest resolvable version reported by pub.
4. Updates constraints via dart pub add <name>:^<resolvable> for each dependency where the declared constraint is behind.

What gets skipped

The tool intentionally skips dependencies that:

• Use path:, git:, or sdk: sources
• Have any or non-standard version constraints
• Are already at ^<resolvable> (up to date)
• Are transitive (not declared directly in your pubspec)

CLI flags

Flag	Description	Default
--dry-run	Preview changes without modifying files	false
--[no-]dev	Include dev_dependencies	true
--package <name>	Filter to specific workspace package(s); repeatable	all
--root <path>	Project root directory	.

Exit codes

Code	Meaning
0	All updates succeeded (or nothing to update)
1	One or more updates failed

Example output

Package: . (flutter pub)
  - direct go_router: ^17.0.0 -> ^17.1.0 (resolved=17.1.0, resolvable=17.1.0)
  - direct firebase_core: ^4.2.1 -> ^4.6.0 (resolved=4.6.0, resolvable=4.6.0)
  - dev    very_good_analysis: ^10.0.0 -> ^10.2.0 (resolved=10.2.0, resolvable=10.2.0)

Summary
=======
- .: changed=3, failed=0

Totals: attempted=3, changed=3, failed=0

Contributing

Contributions are welcome! Please file issues and pull requests on GitHub.

License

MIT — see LICENSE for details.