CodeQL

A query language for repositories of code

Setup

Follow the Getting Started documentation to install the precompiled binary:

On the releases page, you should download the "CodeQL Bundle" from any of the assets, likely codeql-bundle-linux64.tar.gz.

In case you need more queries for different languages not already included in the bundle, try downloading a precompiled pack of queries per language:

Example

codeql pack download codeql/python-queries

Creating a database

Create a database with the following command, inside the root folder of the project you are trying to analyze. <database> will be the output directory, and <language-identifier> is one of the supported languages that the project is written in.

codeql database create <database> --language=<language-identifier>

Example

codeql database create .codeql --language=python

Tip: For some compiled languages like java, the autobuilder may not be able to build your source code to index it. You can choose for --build-mode=none to disable building the project and just look at the source files.

Analyzing a database

When you have created a database, use the analyze command to run queries on a database. <format> can be one of the possible multiple formats, like csv or sarif-latest.

codeql database analyze <database> --format=<format> --output <output-file>

Example

codeql database analyze .codeql --format=sarif-latest --output codeql.sarif

You can view a CSV file with any spreadsheet program, but the most useful format is .sarif. To view the findings and locations in the code you can use the Sarif Viewer VSCode extension.

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Last updated 3 months ago