CFR vs Refinery

CFR is a free Java decompiler that reconstructs Java source from Java class files. It can process individual named classes, classes found on a classpath, or a whole JAR, and the command-line tool can place output in a chosen directory with the --outputdir option. Decompilation behavior can be adjusted through command-line options or an options file. The maker says CFR handles many features from Java 9, 12, and 14, and it can attempt class files from other JVM languages; those are rendered as Java rather than their original language. CFR is written in Java 6 and is said to run wherever Java 6 does. It is available as a downloadable JAR, through Maven, and from GitHub. The FAQ notes an API from version 0.135, and the project repository identifies the license as MIT. CFR handles bytecode rather than native code. Its maker also notes that some inputs fall into edge cases where output may be poor. There are no paid plans or usage limits stated.

Refinery is a free, MIT-licensed SQL migration toolkit for Rust applications. It runs migrations against a database connection supplied by the application, either from embedded Rust code or through the refinery_cli command-line tool. Migrations can be SQL files or Rust modules whose migration function returns a String. Refinery records applied versions and metadata, then checks for missing or divergent migrations before running unapplied work. By default, each migration runs in its own transaction; grouped mode can place all migrations in one transaction. Migrations can also be built into a binary, so separate files are not needed at deployment. Listed drivers include postgres, tokio-postgres, mysql, mysql_async, rusqlite, and tiberius; SQLx can be used with a Config implementing Migrate. Driver selection is handled through features. Maintainers describe limited capacity to maintain additional drivers and point to external repositories, naming Klickhouse as an example. Refinery aims to support stable Rust, the previous Rust version, and nightly. To reverse a migration, users must create another migration with the reversing changes.