Refactoring Stubborn, Legacy Codebases
Briefly

Stubborn Ruby codebases often face numerous complaints, such as issues with modularity and outdated dependencies. Developers express challenges like complex database communication, retroactive data sharding needs, and difficulties upgrading long-standing dependencies. These complaints arise primarily because systems become tightly coupled over time. Despite these challenges, it is possible to refactor codebases effectively. One central team can manage migrations, ideally addressing complaints while improving the codebase, rather than delegating the tasks to multiple teams, which might complicate the process further.
One pervasive assumption in a stubborn codebase is that there's only one way to talk to the database, limiting potential changes and upgrades.
Complaints about stubborn codebases typically include issues with modularity, out-of-date dependencies, and challenges in database communication.
Read at InfoQ
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