rename-project.bash

#!/usr/bin/env bash

set -e

if ! echo "$BASH_VERSION" | grep -E "^[45]" &>/dev/null; then
  echo "Found bash version: $BASH_VERSION"
  echo "Ensure you are using bash version 4 or 5"
  exit 1
fi

if [[ $# -ge 1 ]]; then
  PROJECT_INPUT=$1
  SLACK_RELEASES_CHANNEL=$2
  PIPELINE_SECURITY_SLACK_CHANNEL=$3
  NON_PROD_ALERTS_SEVERITY_LABEL=$4
  PROD_ALERTS_SEVERITY_LABEL=$5
  PRODUCT_ID=$6
else
  read -rp "New project name e.g. prison-visits >" PROJECT_INPUT
  read -rp "Slack channel for release notifications >" SLACK_RELEASES_CHANNEL
  read -rp "Slack channel for pipeline security notifications. >" PIPELINE_SECURITY_SLACK_CHANNEL
  read -rp "Non-prod k8s alerts. The severity label used by prometheus to route alert notifications to slack. See cloud-platform user guide. >" NON_PROD_ALERTS_SEVERITY_LABEL
  read -rp "Production k8s alerts. The severity label used by prometheus to route alert notifications to slack. See cloud-platform user guide. >" PROD_ALERTS_SEVERITY_LABEL
  read -rp "Product ID: provide an ID for the product this app/component belongs too.  Refer to the developer portal. >" PRODUCT_ID
fi

PROJECT_NAME_LOWER=${PROJECT_INPUT,,}                 # lowercase
PROJECT_NAME_HYPHENS=${PROJECT_NAME_LOWER// /-}       # spaces to hyphens

PROJECT_NAME=${PROJECT_NAME_HYPHENS//[^a-z0-9-]/}     # remove all other characters

read -ra PROJECT_NAME_ARRAY <<<"${PROJECT_NAME//-/ }" # convert to array
PROJECT_DESCRIPTION=${PROJECT_NAME_ARRAY[*]^}         # convert array back to string thus capitalising first character

echo "Found:      Project of $PROJECT_DESCRIPTION"
echo "       Project name of $PROJECT_NAME"

echo "Performing search and replace"

# exclude files that get in the way and don't make any difference
EXCLUDES="( -path ./dist -o -path ./node_modules -o -path ./assets -o -path ./.git -o -path ./rename-project.bash )"
# shellcheck disable=SC2086
find . $EXCLUDES -prune -o -type f -exec /usr/bin/sed -i.bak \
  -e "s/laa-template-typescript/$PROJECT_NAME/g" \
  -e "s/LAA Typescript Template/$PROJECT_DESCRIPTION/g" {} \; -exec rm '{}.bak' \;

echo "Performing directory renames"

# move helm stuff to new name
mv "helm_deploy/laa-template-typescript" "helm_deploy/$PROJECT_NAME"

# Update helm values.yaml with product ID.
sed -i -z -E \
  -e "s/UNASSIGNED/$PRODUCT_ID/" \
  helm_deploy/$PROJECT_NAME/values.yaml

# Update helm values files with correct slack channels.
sed -i -z -E \
  -e "s/NON_PROD_ALERTS_SEVERITY_LABEL/$NON_PROD_ALERTS_SEVERITY_LABEL/" \
  helm_deploy/values-dev.yaml helm_deploy/values-preprod.yaml

sed -i -z -E \
  -e "s/PROD_ALERTS_SEVERITY_LABEL/$PROD_ALERTS_SEVERITY_LABEL/" \
  helm_deploy/values-prod.yaml

# change cron job to be random time otherwise we hit rate limiting with veracode
RANDOM_HOUR=$((RANDOM % (9 - 3 + 1) + 3))
RANDOM_MINUTE=$(($RANDOM%60))
RANDOM_MINUTE2=$(($RANDOM%60))
sed -i -z -E \
  -e "s/security:\n    triggers:\n      - schedule:\n          cron: \"30 5/security:\n    triggers:\n      - schedule:\n          cron: \"$RANDOM_MINUTE $RANDOM_HOUR/" \
  -e "s/security-weekly:\n    triggers:\n      - schedule:\n          cron: \"0 5/security-weekly:\n    triggers:\n      - schedule:\n          cron: \"$RANDOM_MINUTE2 $RANDOM_HOUR/" \
  -e "s/SLACK_RELEASES_CHANNEL/$SLACK_RELEASES_CHANNEL/" \
  -e "s/PIPELINE_SECURITY_SLACK_CHANNEL/$PIPELINE_SECURITY_SLACK_CHANNEL/" \
  .circleci/config.yml

# lastly remove ourselves
rm rename-project.bash

echo "Completed."
echo "Please now review changes"