init.sh

#!/bin/bash
#
# init.sh
#
# Automate these steps to get yourself up and running with Codelab:
# * Create boilerplate for Codelab
# * Configure a nodemon watch command to rebuild your codelab on save
# - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + -

command_exists() {
    # check if command exists and fail otherwise
    command -v "$1" >/dev/null 2>&1
    if [[ $? -ne 0 ]]; then
        echo "Note: $1 Does not exist. Please install it if you would like to run the codelab locally"
    fi
}

cd `dirname $0`

# validate that a codelab name was included as an argument
if [ "$#" -ne 1 ]; then
	echo "USAGE: $0 <CODELAB_NAME>"
	echo ""
	exit 1
fi

# env variables
CODELAB_NAME=$1
AUTHOR_NAME=`git config user.name`

# local variables
codelab_markdown_filename="markdown/$CODELAB_NAME/$CODELAB_NAME.md"
codelab_package_json_filename="markdown/$CODELAB_NAME/package.json"
markdown_template="markdown/template/markdown.template"
package_json_template="markdown/template/package.json"
#in MacOS sed creates a backup file if zero length extension is not specefied e.g. ''
backup_md="$codelab_markdown_filename-e"
backup_package_json="markdown/$CODELAB_NAME/package.json-e"

# validate that markdown template and package.json exist
if [ ! -f "$markdown_template" ] || [ ! -f "$package_json_template" ]; then
  msg "ERROR!"
  echo "Could not find one of the following files:"
  echo "  - $markdown_template"
  echo "  - $package_json_template"
  echo ""
  exit 0
fi

# Create a new directory for the codelba 
mkdir markdown/$CODELAB_NAME
cp -r markdown/template/* markdown/$CODELAB_NAME/
rm markdown/$CODELAB_NAME/markdown-iguide.template

# rename markdown template file 
mv markdown/$CODELAB_NAME/markdown.template $codelab_markdown_filename

# replace placeholder codelab id in markdown template file with name provided by command line argument 
sed -i \
  -e "s/CODELAB_NAME.*/$CODELAB_NAME/g" \
  $codelab_markdown_filename

# replace placeholder authorname with git username=
sed -i \
  -e "s/AUTHOR_NAME.*/$AUTHOR_NAME/g" \
  $codelab_markdown_filename

# replace placeholder codelab name in the watch command with name provided in command line argument
sed -i \
  -e "s/CODELAB_NAME/$CODELAB_NAME/g" \
  $codelab_package_json_filename

# Remove backup files generated by sed in MacOs
if [ -f "$backup_md" ]; then
  rm $backup_md
fi

if [ -f "$backup_package_json" ]; then
  rm $backup_package_json
fi

echo "Markdown file created! Find it at $PWD/markdown/$CODELAB_NAME"
command_exists claat
command_exists go

cd $PWD/markdown/$CODELAB_NAME