Limit Vercel Preview Deployments to Specific Branch Prefixes

When pushing to a repository linked with Vercel, a preview deployment is performed every time.
However, I would like to reduce the number of deployments for the following reasons:

• Concern about hitting the deployment limits of a free account.
• I only want it to deploy at the specific timing when I want to preview.

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Conclusion

This is a slight modification of what has been mentioned in articles by authors like catnose.
I have changed the check in the if clause to a condition that determines whether it contains a specific prefix.

shell/vercel/ignore-build.hs

#!/bin/bash

echo "VERCEL_GIT_COMMIT_REF: $VERCEL_GIT_COMMIT_REF"

if [[ "`echo $VERCEL_GIT_COMMIT_REF | grep 'develop/*'`" ]]; then
    # Proceed with the build
    echo "✅ - Build can proceed"
    exit 1;
else
    # Don't build
    echo "🛑 - Build cancelled"
    exit 0;
fi

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References

Ignoring branches other than specific ones in Vercel preview deployments
Using Vercel's Ignored Build Step to create preview builds only when specific branches are pushed