dredgeup

dredgeup is a command-line utility that allows users to update outdated dependencies in a Haskell project. It is part of the Haskell tooling ecosystem and is designed to simplify the process of migrating projects to newer versions of Haskell libraries. The tool analyzes the project's dependencies, typically defined in a cabal or stack file, and identifies which packages can be safely upgraded.

The core functionality of dredgeup involves comparing the currently used versions of dependencies against the latest available versions. It then presents the user with a list of potential upgrades and allows them to select which ones to apply. This selective approach helps prevent unintended breakage that might occur if all dependencies were upgraded indiscriminately.

dredgeup can be particularly useful when dealing with projects that have not been maintained for a while. Over time, Haskell libraries evolve, and older versions may become incompatible with newer GHC compiler versions or other libraries. dredgeup automates much of the tedious work involved in identifying and performing these updates, saving developers time and effort.

The tool is designed to be integrated into a project's development workflow. By regularly running dredgeup, developers can keep their project dependencies current, reducing the likelihood of encountering significant compatibility issues in the future. It aims to provide a more robust and user-friendly experience compared to manually inspecting and updating dependency versions.