nx-ignore-and-vercel-bash-script.sh

#!/bin/bash

GITHUB_ORG=""
GITHUB_REPO=""

# If the commit message contains [skip ci] then don't run
if [[ "$VERCEL_GIT_COMMIT_MESSAGE" == *"[skip ci]"* ]]; then
	echo "⏭️ skipping ([skip ci] in commit message)"
	exit 0
fi

# If these are the same then a manual redeploy was run
if [[ ! -z "$VERCEL_GIT_PREVIOUS_SHA" && ! -z "$VERCEL_GIT_COMMIT_SHA" && "$VERCEL_GIT_PREVIOUS_SHA" == "$VERCEL_GIT_COMMIT_SHA" ]]; then
	echo "🔄 redeploying"
	exit 1
fi

# Add git repo origin
echo "Adding origin"
git remote add origin https://[email protected]/$GITHUB_ORG/$GITHUB_REPO

echo "Fetching origin/main"
# Get a sensible number of commits from main so it's not slow
git fetch origin main --depth=30

echo "Calculating base"
# For the base to compare changes against, use the last built commit hash as long as it exists in the git tree ("git cat-file -e...")
# Otherwise use main as the base
BASE=$([[ ! -z "$VERCEL_GIT_PREVIOUS_SHA" ]] && git cat-file -e $VERCEL_GIT_PREVIOUS_SHA && echo $VERCEL_GIT_PREVIOUS_SHA || echo "origin/main")
# Take the project name from the CLI arguments
PROJECT=$1

echo "Base: $BASE"
echo "Project: $PROJECT"

npx nx-ignore $PROJECT --base=$BASE