Bash script to run Hugo with support for Hugo modules on Vercel

hugo_build.sh

#!/bin/bash

# default versions
if [ -z $GO_VERSION ]; then GO_VERSION='1.15.5'; fi
if [ -z $HUGO_VERSION ]; then HUGO_VERSION='0.80.0'; fi

# install Go
curl -sSOL https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz
tar -C /usr/local -xzf go${GO_VERSION}.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin

# install Hugo
echo "Installing Hugo $HUGO_VERSION..."
curl -sSOL https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz
tar -xzf hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz
./hugo version

# run Hugo
echo "Running Hugo..."
./hugo --gc --minify

vercel.json

{
  "builds": [
    {
      "src": "hugo-build.sh",
      "use": "@vercel/static-build",
      "config": { "distDir": "public" }
    }
  ]
}