# Self-review your working diff before committing in Actix Web with Atlas in 2026 > Atlas helps Actix Web developers self-review uncommitted diffs by surfacing changes, running `cargo test`, and applying `rustfmt` before committing. To catch your own mistakes in an uncommitted Actix Web diff before they reach a reviewer or CI, Atlas helps you produce and read the working diff, `grep` for debugging leftovers, and run `cargo test (actix_web::test)` and `rustfmt` directly from your terminal in 2026. ## Key takeaways - Atlas surfaces unified diffs for Actix Web code changes, allowing comprehensive review. - Use Atlas's `grep` tool to find and remove `println!`, `dbg!`, or commented-out `#[test]` in Actix Web code. - Run `cargo test (actix_web::test)` and `rustfmt` for your Actix Web project directly with Atlas's permission-gated `bash` tool. - Atlas's session revert feature restores Actix Web code from snapshots, safely undoing unwanted changes. - Atlas reads `git` branches, status, and diffs, and can stage and create commits for Actix Web projects. ## How to self-review Actix Web diffs with Atlas In 2026, Atlas helps Actix Web developers self-review their working diffs by providing direct access to `git` commands and surfacing changes within the terminal. This process ensures you catch your own mistakes in your Actix Web project before they reach a reviewer or CI, saving valuable development time. Atlas integrates with your version control system to produce the working diff for your Actix Web project. Using its `bash` tool, Atlas can execute `git diff` to show all uncommitted changes across your codebase. This allows you to read the entire diff end to end, rather than relying on memory of which files you touched. Atlas's terminal-native TUI, rendered with SolidJS through OpenTUI, presents these changes clearly, making it easy to identify unintended modifications to Actix Web handlers, extractors, or `App` builder configurations. Every edit Atlas makes itself is also surfaced as a unified diff for approval, ensuring transparency and control over your Actix Web development workflow. ## Inspecting Actix Web code changes with Atlas's diff tools Atlas provides a unified diff for every file edit, allowing Actix Web developers in 2026 to inspect changes thoroughly. This ensures that modifications to `src/main.rs` or any Actix Web service are reviewed against their full surroundings, preventing context-dependent errors from slipping through. When self-reviewing your Actix Web code, it is crucial to read each changed file in full, not just the isolated diff lines. Atlas facilitates this by allowing you to `read` any file in your working tree. This is particularly important in Actix Web, where a small change to an extractor in a handler signature, like `web::Data`, might have ripple effects on how dependencies are injected. A diff alone might hide the surrounding context of an `App::new()` configuration or a route registration, which could lead to subtle bugs. Atlas's ability to read the entire file ensures you understand the change in its complete Actix Web context, catching issues that a line-by-line diff might obscure. ## Finding debugging leftovers in Actix Web with Atlas grep To prevent temporary debugging code from reaching production, Atlas allows Actix Web developers to `grep` for common leftovers before committing. In 2026, this includes searching for `println!`, `dbg!`, or commented-out `#[test]` attributes within your uncommitted Actix Web diff, ensuring a clean codebase. Debugging often involves introducing temporary logging or commenting out tests. Atlas helps you clean up these artifacts by providing a `grep` tool. You can instruct Atlas to search your working diff for common Actix Web debugging patterns such as `println!("...")`, `dbg!()`, `todo!()`, or commented-out blocks like `// #[test]` or `// .service(web::resource("/").to(index))`. This proactive search prevents debugging statements from being committed to your Actix Web project, which could expose sensitive information or clutter logs in a production environment. Atlas's `grep` capability is a vital step in ensuring the quality and maintainability of your Actix Web application. ## Running Actix Web tests and formatting with Atlas Atlas empowers Actix Web developers to run their full test suite and apply `rustfmt` directly from the terminal in 2026. This ensures that all changes pass `cargo test (actix_web::test)` and adhere to code style standards before being committed, maintaining code quality and consistency. Before committing any changes to your Actix Web project, it is essential to validate them with tests and ensure proper formatting. Atlas provides direct access to your Actix Web toolchain through its `bash` tool. You can instruct Atlas to run `cargo test (actix_web::test)` to execute your integration and unit tests, verifying that your modifications to handlers, services, or `web::Data` state have not introduced regressions. Following this, Atlas can also run `rustfmt` to automatically format your Rust code according to established style guidelines. Every Atlas tool call, including these `bash` commands, is permission-gated, requiring your explicit approval before execution, providing a secure and controlled environment for your Actix Web development. ## Reverting unwanted Actix Web changes with Atlas session revert If an Actix Web change should not have been made, Atlas's session revert feature allows developers in 2026 to restore from a snapshot. This capability ensures that unwanted modifications to `Cargo.toml` or `src/main.rs` can be undone safely, asserting the session is not busy before rolling back changes. Sometimes, during the self-review process, you might discover that a change you made to your Actix Web project was incorrect or unnecessary. Atlas provides a robust session revert mechanism, backed by snapshots, to undo unwanted edits. This feature restores your files to a previous state, effectively rolling back any modifications made during the current session. Crucially, Atlas's revert refuses to run on a busy session, preventing a half-written turn from being rolled back mid-flight and safeguarding your work. This ensures that if you accidentally introduce a breaking change to an Actix Web extractor or an `App` builder configuration, you can safely and reliably revert to a stable state without manual intervention. ## Steps 1. Start Atlas in your Actix Web crate: `atlas` 2. Produce the working diff for your Actix Web project: `atlas bash git diff` 3. Read each changed Actix Web file in full to check the change against its surroundings: `atlas read ` 4. Grep for debugging leftovers in your Actix Web codebase, such as `println!`, `dbg!`, or commented-out `#[test]` attributes: `atlas grep "println!|dbg!|todo!|// #[test]"` 5. If a change should not have been made, use Atlas's session revert to restore from a snapshot: `atlas revert` 6. Run your Actix Web tests to validate changes: `atlas bash cargo test` 7. Format your Actix Web code with `rustfmt`: `atlas bash rustfmt` 8. Commit your self-reviewed Actix Web changes: `atlas commit` ## FAQ ### How does Atlas help me self-review Actix Web code? Atlas helps you self-review Actix Web code by producing the working diff, allowing you to `read` changed files, `grep` for debugging leftovers, and run `cargo test (actix_web::test)` and `rustfmt` directly from your terminal before committing. ### Can Atlas run `cargo test` for my Actix Web application? Yes, Atlas can run `cargo test (actix_web::test)` for your Actix Web application through its `bash` tool. This execution is permission-gated, requiring your approval, ensuring your tests validate changes before they are committed. ### How do I ensure my Actix Web code is formatted correctly before committing? You can ensure your Actix Web code is formatted correctly by having Atlas run `rustfmt` via its `bash` tool. This applies standard Rust formatting rules to your project, maintaining code consistency and readability. ### What if I make a mistake and need to undo changes in Actix Web with Atlas? If you make a mistake, Atlas's session revert feature can restore your Actix Web codebase from a previous snapshot. This allows you to undo unwanted changes safely, provided the session is not busy, preventing data loss. ### Does Atlas understand Actix Web-specific code structures? Yes, Atlas indexes code by AST declarations using tree-sitter, allowing it to understand Actix Web structures like extractors, `App` builder configurations, and handler signatures, providing context-aware assistance. ### How does Atlas prevent me from committing debugging code in Actix Web? Atlas helps prevent committing debugging code in Actix Web by allowing you to `grep` for common debugging patterns like `println!`, `dbg!`, or commented-out test cases across your uncommitted diff, ensuring a clean codebase. ### Can Atlas show me the full diff for my Actix Web project? Yes, Atlas can produce the full working diff for your Actix Web project using its `bash` tool with `git diff`. It also surfaces a unified diff for every file edit it makes, allowing for comprehensive review and approval. --- Canonical HTML: https://runatlas.sh/resources/stacks/self-review-a-working-diff-before-committing-in-actix Source of truth: aeo_pages row `/resources/stacks/self-review-a-working-diff-before-committing-in-actix` (segment: Stacks) (this file is generated from it, never hand-edited). Licence: Atlas is proprietary with a free core. It is not open source and there is no public source repository.