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Robocop


Introduction

Robocop is a tool that performs static code analysis and formatting of Robot Framework code.

It uses official Robot Framework parsing API to parse files and runs number of checks, looking for potential errors or violations to code quality standards (commonly referred as linting issues).

Hosted on GitHub.

Documentation

Full documentation is available here. 📖

Most common questions with answers can be found at the bottom ⬇ of this README file.

Requirements

Python 3.9+ 🐍 and Robot Framework 4.0+ 🤖.

Installation

You can install the latest version of Robocop simply by running:

pip install -U robotframework-robocop

Usage

Robocop runs by default from the current directory, and it discovers supported files recursively. To lint the files you can run:

robocop check

To format the files you can run:

robocop format

All command line options can be displayed in help message by executing:

robocop -h

Example Output

Executing command:

robocop check --report rules_by_error_type test.robot

Will result in the following output:

test.robot:17:1 SPC22 Not enough whitespace after 'Test Teardown' setting
    |
 15 |
 16 | Test Setup Keyword
 17 | Test Teardown Keyword2
    | ^ SPC22
 18 | Testtimeout 1min
 19 | Documentation this is doc
    |

test.robot:28:1 SPC14 Variable in Variables section is not left aligned
   |
 1 | *** Variables ***
 2 | ${VAR} 1
 3 |  ${VAR}  1
   | ^ SPC14
 4 |   ${VAR}  1
 5 | VALUE  1

Found 2 issues: 2 ERRORs, 0 WARNINGs, 0 INFO.

Values

Original RoboCop - a fictional cybernetic police officer 👮‍♂️ - was following 3 prime directives which also drive the progress of Robocop linter:

First Directive: Serve the public trust 👨‍👩‍👧‍👦

Which lies behind the creation of the project - to serve developers and testers as a tool to build applications they can trust.

Second Directive: Protect the innocent 👶

The innocent testers and developers have no intention to produce ugly code but sometimes, you know, it just happens, so Robocop is there to protect them.

Third Directive: Uphold the law 🏛️

Following the coding guidelines established in the project are something very important to keep the code clean, readable and understandable by others and Robocop can help to uphold the law.

FAQ

Can I integrate Robocop with my code editor (IDE)?

TODO: Update with dbhiel plugin. Yes, Robocop integrates nicely with popular IDEs like PyCharm or VSCode thanks to Robot Framework Language Server. Read simple manual (README) in that project to figure out how to install & use it.

TODO: update screenshot You can also use Robocop in PyCharm easily as an external tool. To configure it, go to: FileSettingsToolsExternal Tools and click + icon. Then put values based on official instructions or this screenshot:

Robocop

If you're using Python virtual environment in your project, make sure to provide correct path to robocop.exe located in venv\Scripts\robocop.exe. Now, you can run Robocop by right-clicking on a file or directory and choosing External toolsRobocop.

We suggest also to add a keyboard shortcut (e.g. Ctrl + , (comma)) to quickly run Robocop on selected files. You can map the shortcut in SettingsKeymap.

Can I load configuration from file?

Yes, you can use toml-based configuration files:

.robocop file pyproject.toml file

The difference between two is that pyproject.toml file does require [tool.robocop] sections while .robocop do not.

Example configuration file:

[tool.robocop]
exclude = ["deprecated.robot"]

[tool.robocop.lint]
select = [
  "rulename",
  "ruleid"
]
configure = [
    "line-too-long.line_length=110"
]

[tool.robocop.format]
select = ["NormalizeNewLines"]
configure = [
    "NormalizeNewLines.flatten_lines=True"
]

Multiple configuration files are supported. However, global-like options such as --verbose or --reports are only loaded from top configuration file.

I use different coding standards. Can I configure rules so that they fit my needs?

Yes, some rules and formatters are configurable. You can find the configuration details in the documentation or by running:

robocop docs rule_name_or_id
robocop docs formatter_name

Configuring is done by using -c / --configure command line option followed by pattern <name>.<param_name>=<value> where:

  • <name> can either be rule name or its id, or formatter name
  • <param_name> is a public name of the parameter
  • <value> is a desired value of the parameter

For example:

robocop check --configure line-too-long.line_length=140

Each rule's severity can also be overwritten. Possible values are e/error, w/warning or i/info and are case-insensitive. Example:

robocop check -c too-long-test-case.severity=e

If there are special cases in your code that violate the rules, you can also exclude them in the source code.

Example:

Keyword with lowercased name  # robocop: disable

More about it in TODO check docs urls our documentation.

Can I define custom rules?

TODO refactor to update with new option names etc

Yes, you can define and include custom rules using -rules / --ext-rules command line option by providing a path to a file containing your rule(s). The option accepts comma-separated list of paths to files or directories, e.g.

robocop -rules my/own/rule.py --ext-rules rules.py,external_rules.py

If you feel that your rule is very helpful and should be included in Robocop permanently, you can always share your solution by submitting a pull request. You can also share your idea by creating an issue.

More about external rules with code examples in our documentation.

Can I use Robocop in continuous integration (CI) tools?

TODO: docs urls Yes, it is easy to integrate Robocop with CI and other tools. For more details read our documentation.


Excuse me, I have to go. Somewhere there is a crime happening. - Robocop