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DEVAI CLI

This example demonstrates ways to integrate LLM models into a custom command line utility for use by developers both locally and in automation processes such as CICD pipelines.

Clone the repository

Open terminal and clone the repository.

git clone https://github.com/GoogleCloudPlatform/genai-for-developers.git

Run DEVAI CLI locally

Obtain GCP user access credentials via a web flow. CLI will use these credentials to authenticate and make API calls.

gcloud auth application-default login

Set GCP project and location.

export PROJECT_ID=$(gcloud config get-value project)
export LOCATION=us-central1

Go back to the terminal and run commands below to install devai locally.

pip3 install devai-cli

The cli was installed but it's not in the PATH.

WARNING: The script devai is installed in '/home/student_00_478dfeb8df15/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.

Run the command below to update the PATH environment variable. Replace with your user’s home folder name. For example: student_00_478dfeb8df15

export PATH=$PATH:/home/YOUR-USER-HOME-FOLDER/.local/bin

Run devai cli command to perform code review locally. Review cli output.

cd ~/genai-for-developers

devai review code -c ./sample-app/src/main/java/anthos/samples/bankofanthos/balancereader

Open review command and review the code:

devai-cli/src/devai/commands/review.py

DevAI CLI Development

In this section you will be making changes to devai cli. To start, set up python virtualenv, install requirements and run the sample command.

cd ~/genai-for-developers/devai-cli
python3 -m venv venv
. venv/bin/activate
pip3 install -r src/requirements.txt
pip3 install --editable ./src
devai echo

Re-run code review command to check that everything is working fine:

devai review code -c ~/genai-for-developers/sample-app/src/main/java/anthos/samples/bankofanthos/balancereader

Explore devai cli commands

Code review command

devai review code -c ~/genai-for-developers/sample-app/src/main/java

Performance review command

devai review performance -c ~/genai-for-developers/sample-app/src/main/java

Security review command

devai review security -c ~/genai-for-developers/sample-app/src/main/java

Test coverage review command

devai review testcoverage -c ~/genai-for-developers/sample-app/src

Company standards review command

devai review compliance --context ./sample-app/k8s --config ./devai-cli/gemini/styleguide.md

Blockers review commands

devai review blockers -c ~/genai-for-developers/sample-app/pom.xml
devai review blockers -c ~/genai-for-developers/sample-app/setup.md

Image/Diagram review and summarization:

devai review image \
  -f ~/genai-for-developers/images/extension-diagram.png \
  -p "Review and summarize this diagram"

Image diff analysis:

devai review imgdiff \
  -c ~/genai-for-developers/images/devai-api.png \
  -t ~/genai-for-developers/images/devai-api-slack.png

Documentation generation command:

devai document readme -c ~/genai-for-developers/sample-app/src/main/

Integrations

Take a look at other tutorials to enable integrations with JIRA, GitLab and LangSmith.