To implement fetching the latest updated branch from your git repository in a Prefect deployment configuration, we first need to know which version of Prefect you are using (2.x or 3.x), as the syntax can differ between versions. Here's the typical approach for both versions, generally aligned with best practices: 1. Define a shell script step to determine the latest updated branch. 2. Use a git clone step to pull the latest branch into your deployment. Let's verify and update your configuration according to the correct Prefect version documentation to ensure you are using the right syntax. I'll search for relevant Prefect 2.x and 3.x documentation on implementing this in a

prefect.yaml

configuration file. Please stay tuned for a moment. It seems there was an error in conducting the search because the query wasn't provided. Let's refine the query to properly locate the relevant documentation on crafting a deployment script for fetching the latest Git branch in Prefect 2.x and 3.x. We'll focus on the use of shell script steps and git clone configurations within

prefect.yaml

. I'll proceed to search for this information again with specific queries. Please hold on. Based on the documentation for both Prefect 2.x and 3.x, I found relevant information on how to configure the

prefect.yaml

file to execute shell scripts and perform Git operations, such as cloning a repository. Here is a summary for each version: Prefect 2.x: - You can use

prefect.deployments.steps.run_shell_script

to execute shell commands. Make sure to set

expand_env_vars: true

if you want to expand environment variables within the script. - Use the

prefect.deployments.steps.git_clone

to clone your repository and specify the branch dynamically using the output from the shell script. Prefect 3.x: - Similarly, you can use

prefect.deployments.steps.run_shell_script

with options like

stream_output

to control the script output. - The Git clone operation is done using

prefect.deployments.steps.git_clone

, where you can specify credentials and dynamically choose the branch based on script output. Here's a simplified example for a deployment configuration based on your use case:

yaml
pull:
  - prefect.deployments.steps.run_shell_script:
      id: get_latest_branch
      script: |
        bash -c '
          cd [MY REPO NAME HERE] && \
          git fetch --all && \
          LATEST_BRANCH=$(git for-each-ref --sort=-committerdate refs/remotes/origin/ --format="%(refname:short)" | grep -vE "^origin/(master|main)$" | head -n1 | sed "s#^origin/##") && \
          echo $LATEST_BRANCH
        '
      stream_output: true
  - prefect.deployments.steps.git_clone:
      repository: [LINK TO MY REPO]
      branch: "{{ get_latest_branch.stdout }}"

Make sure to replace

[MY REPO NAME HERE]

and

[LINK TO MY REPO]

with your actual repository details. The above script finds the most recently updated branch that is neither

master

nor

main

, assuming such branches exist in your workflow. Reference links: - Prefect 2.x Deployment Guide - Prefect 3.x Deployment Guide Let me know if you need further clarification or help!