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214 Stars 36 Forks MIT License 356 Commits 22 Opened issues


A static-analysis bot for Github

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Imhotep, the peaceful builder.

Build Status Requirements Status

What is it?

Imhotep is a tool which will comment on commits coming into your repository and check for syntactic errors and general lint warnings.


Currently, installation is done from source through Python packaging system. We first need to download it from GitHub. We then setup a virtualenv which will keep our python packages separate from other things on your system, lest we have version conflicts. Finally, we install the required packages.

virtualenv env
. env/bin/activate
pip install imhotep

If you want to hack on imhotep, that looks more like this:

git clone git://
cd imhotep
virtualenv env
. env/bin/activate
pip install -r requirements.txt
pip install -e .

You'll also need to install the plugins you'd like to run. Examples include jshint, flake8, pep8, pylint, rubocop, foodcritic, and jsl. You can install those with pip. Example:

pip install imhotep_jshint


To use imhotep, we must tell it which repository to look at, who to authenticate as and what to comment on. Imhotep is able to comment in two ways: either on a single commit or on a pull request.

Commenting on a pull request

    imhotep \
       --repo_name="justinabrahms/imhotep" \
       --github-username="your_username" \
       --github-password="a_sha_generated_by_github" \

Commenting on a single commit

    imhotep \
       --repo_name="justinabrahms/imhotep" \
       --github-username="your_username" \
       --github-password="a_sha_generated_by_github" \

Where do I get that SHA?

The SHA generated by github is done through your user's settings page. Generate a personal access token and use that for the


Full Usage Info

usage: imhotep [-h] [--config-file CONFIG_FILE] --repo_name REPO_NAME
               [--commit COMMIT] [--origin-commit ORIGIN_COMMIT]
               [--filenames FILENAMES [FILENAMES ...]] [--debug]
               [--github-username GITHUB_USERNAME]
               [--github-password GITHUB_PASSWORD] [--no-post]
               [--authenticated] [--pr-number PR_NUMBER]
               [--cache-directory CACHE_DIRECTORY] [--report-file-violations]

Posts static analysis results to github.

optional arguments: -h, --help show this help message and exit --config-file CONFIG_FILE Configuration file in json. --repo_name REPO_NAME Github repository name in owner/repo format --commit COMMIT The sha of the commit to run static analysis on. --origin-commit ORIGIN_COMMIT Commit to use as the comparison point. --filenames FILENAMES [FILENAMES ...] filenames you want static analysis to be limited to. --debug Will dump debugging output and won't clean up after itself. --github-username GITHUB_USERNAME Github user to post comments as. --github-password GITHUB_PASSWORD Github password for the above user. --no-post [DEBUG] will print out comments rather than posting to github. --authenticated Indicates the repository requires authentication --pr-number PR_NUMBER Number of the pull request to comment on --cache-directory CACHE_DIRECTORY Path to directory to cache the repository --report-file-violations Report file-level violations, i.e. those not on individual lines

Note: if you get a error where the plugin cannot find
, make sure you installed imhotep into your virtualenv with
pip install -e .
. See the Installation instructions above.

Linter Support

There is currently support for 2 linters: PyLint and JSHint. If it finds violations, it will post those violations to GitHub. New linting tools are encouraged!

By default, imhotep runs all plugins it can find on your source code. If you'd like to only run a subset of linters, you should specify the

directive with a dotted path to the module. An example of this is
. If you want to specify multiple tools, just pass multiple things to the

Writing Plugins

Imhotep supports adding linters through a plugin API based around Python's setuptools entrypoints. This means that plugins can live as separate Python packages which are installable alongside imhotep.

To write your own tool, subclass the Tool class and override the

, and
methods. If you need greater control over how the tool is run, you can override the
method which gives you maximal control over how the tools are run.

To make your plugin discoverable, you need to add an

stanza to your
. It looks like this.
  # ...
    'imhotep_linter': [
      '.py ='
  # ...

The key pieces of this are the name of the entrypoint which must be

. This is how we know where to find the plugins. The list that follows it is a list of strings that map file extensions to a tool that knows how to lint them. So for the entry above, we'll do something like
from import
and run that on all
files in the repository.

You can find a working example of a
file in the imhotep_pep8 repository.

What's with the name?

Imhotep, the first Egyptian architect, is known as "the one who comes in peace". In keeping with that name, the goal of this tool is to keep code reviews peaceful and productive by having robots point out the nitpicky details, leaving people to critique bigger picture things, not spacing and misspelling issues.

Release Notes


Bugfixes: - Improved discovery of build tools


This is the first release where I'm tracking release notes. This release is majoritively the work of danpalmer. Thanks, Dan!

Features: - Support for file level violations

Backwards incompatible change: - The printer reporter was broken, not using the correct interface for reporting individual lines. I've chosen to not bump the major version, because this change was to get something to work. Any work built on top of this class would have not be operational code, so I'm not worried about breaking someone.

Bugfixes: - Different reporters that report errors on the same line don't clobber each other. - File extensions are properly filtered before reporting.

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