Dotenv documentation

docs/changelog.md

@@ -5,13 +5,15 @@ description: The latest updates and changes to CodeRabbit.
 sidebar_position: 13
 ---
 
-### May 30, 2025
+## June 5, 2025
 
-#### New Static Analysis Tool
+### Enhanced Static Analysis: Dotenv Linter and Pylint Support
 
-We're excited to announce that [Pylint](https://github.com/PyCQA/pylint) is now supported on CodeRabbit!
+We're excited to announce that two new static analysis tools are now supported on CodeRabbit!
 
-- **Pylint**: A widely used static analysis and code quality tool for Python. It checks for errors, enforces a coding standard, and looks for code smells in your Python codebase by analyzing Python files.
+- [Dotenv Linter](https://github.com/dotenv-linter/dotenv-linter) is a fast, opinionated linter for `.env` files that helps prevent misconfigurations by detecting typos, invalid syntax, and duplicated keys.
+
+- [Pylint](https://github.com/PyCQA/pylint) is a widely used static analysis and code quality tool for Python. It checks for errors, enforces coding standards, and looks for code smells in your Python codebase.
 
 ## May 25, 2025
 

docs/tools/dotenv.md

@@ -0,0 +1,33 @@
+---
+title: Dotenv Linter
+sidebar_label: Dotenv Linter
+description: CodeRabbit's guide to Dotenv Linter.
+---
+
+```mdx-code-block
+import ProPlanNotice from '@site/src/components/ProPlanNotice.mdx';
+
+<ProPlanNotice />
+```
+
+[Dotenv Linter](https://github.com/dotenv-linter/dotenv-linter) is a lightning-fast linter for `.env` files. It helps ensure your environment files are consistent, typo-free, and follow best practices.
+
+:::note
+
+Dotenv Linter does not require configuration to run and automatically anlysises `.env` files. If no configuration file is found, it will use default settings.
+
+:::
+
+## Features
+
+Dotenv Linter can detect:
+
+- Key duplication
+- Missing values
+- Incorrect formatting
+- Invalid characters
+- And many more issues
+
+## Links
+
+- [Dotenv Linter GitHub Repository](https://github.com/dotenv-linter/dotenv-linter)

docs/tools/list.md

@@ -18,6 +18,7 @@ For an overview of how CodeRabbit uses these tools when generating code reviews,
 | Cppcheck                    | [Cppcheck][Cppcheck]                                       | Code Quality                                        |
 | CSS                         | [Biome][Biome]                                             | Code Quality                                        |
 | Docker                      | [Hadolint][Hadolint], [Checkov][Checkov]                   | Code Quality, Code Security                         |
+| Environment Files (.env)    | [Dotenv Linter][DotenvLinter]                              | Code Quality                                        |
 | GitHub Actions              | [actionlint][actionlint], [Pipeline Remediation][Pipeline] | Code Quality, CI/CD Failure Remediation             |
 | GitLab Pipelines            | [Pipeline Remediation][Pipeline]                           | CI/CD Failure Remediation                           |
 | Go                          | [golangci-lint][golangci-lint]                             | Code Quality                                        |
@@ -78,3 +79,4 @@ For an overview of how CodeRabbit uses these tools when generating code reviews,
 [Brakeman]: /tools/brakeman.md
 [Clippy]: /tools/clippy.md
 [Pylint]: /tools/pylint.md
+[DotenvLinter]: /tools/dotenv.md