#!/usr/bin/env bash
#
# Run it as:
#   vendor_template https://gitlab.com/pages/hugo hugo "Pages/Hugo template"
#

## Check which OS the script runs from since gtar/tar behaves differently
## on macOS and Linux
if [ "$(uname)" == "Darwin" ]; then
  GTAR="gtar"
else
  GTAR="tar"
fi

## Check if jq is installed
hash jq 2>/dev/null || echo "ERROR: jq is not installed. Install it and run the script again."

REPO_URL=$1
SHORT_NAME=$2
COMMENT=$3
FILENAME="$SHORT_NAME.tar.gz"

# Check if the extracted project exists
if [ ! -f $FILENAME ]
then
  echo
  echo "ERROR: $FILENAME doesn't exist. Did you export the project?"
  exit 1
fi

$GTAR --list --file="$FILENAME"
rm -rf tar-base project-$SHORT_NAME
mkdir -p "./tar-base"
tar xf "$2.tar.gz" -C "./tar-base" ./VERSION ./tree/project.json
git clone "$REPO_URL" project-$SHORT_NAME
cd project-$SHORT_NAME
rm -rf .git
git init
git add -A .
git commit --author "GitLab <root@localhost>" -m "$COMMENT"
git bundle create project.bundle --all
mv -f project.bundle ../tar-base/
cd ../tar-base
cat tree/project.json | jq '.issues = [] | .releases = [] | .merge_requests = [] | .ci_pipelines = [] | .pipeline_schedules = [] | .services = [] | .pipelines = [] | .protected_branches = [] | .project_members = [] | .labels = [] | del(.ci_cd_settings, .external_authorization_classification_label, .project_feature)' -c > project.json
rm -rf tree
ls -alth
tar cvzf "$FILENAME" ./
cd ..

echo "=> Moving $FILENAME to the vendored templates"
mv tar-base/$FILENAME vendor/project_templates/

echo "=> Cleaning up"
rm -rf tar-base "project-$SHORT_NAME" $FILENAME

echo "=> The following files are included in the bundled repo:"
$GTAR --list --file="vendor/project_templates/$FILENAME"