#!/usr/bin/env bash

set -euo pipefail

# Reads a file with variables to insert into templates, and templates all .*.j2 files

# in the 'docs' directory.

#

# dependencies

# pip install jinja2-cli

docs_dir="$(dirname "$0")/../docs"

templating_vars_file="$docs_dir/templating_vars.yaml"

# Check if files need templating

if [[ -z $(find "$docs_dir" -name '*.j2') ]];

then

echo "No files need templating, exiting."

exit

fi

# Check if jinja2 is there

if ! command -v jinja2 &> /dev/null

then

echo "jinja2 could not be found. Use 'pip install jinja2-cli' to install it."

exit 1

fi

# Check if templating vars file exists

if [[ ! -f "$templating_vars_file" ]];

then

echo "$templating_vars_file does not exist, cannot start templating."

fi

find "$docs_dir" -name '*.j2' |

while read -r file

do

new_file_name=${file%.j2} # Remove .j2 suffix

echo "templating $new_file_name"

jinja2 "$file" "$templating_vars_file" -o "$new_file_name"

done

echo "done"