bootstrap

#!/usr/bin/env bash

# exit on errors
set -e

#
# Bootstraps a development environment.
#
# This includes:
# * install pre-commit hooks
# * setup content dependencies with poetry
# * Setup npm

# poetry is installed in ~/.local/bin
PATH=~/.local/bin:$PATH

if [ "$1" == "-h" -o "$1" == "--help" ]; then
    cat << EOF
Setup development environment (run with no arguments):
* install pre-commit hooks (set NO_HOOKS=1 to skip)

EOF
exit 0
fi

if [ ! "$PWD" == "$(git rev-parse --show-toplevel)" ]; then
    cat >&2 <<__EOF__
ERROR: this script must be run at the root of the source tree
__EOF__
    exit 1
fi

HOOKS_DIR="${PWD}/.hooks"
GIT_HOOKS_DIR="${PWD}/.git/hooks"

if [ -n "$NO_HOOKS" ]; then
    echo "Skipping hooks setup as environment varialbe NO_HOOKS is set"
else
    if [ ! -e "${GIT_HOOKS_DIR}/pre-commit" ]; then
        echo "Installing 'pre-commit' hooks"
        ln -s "${HOOKS_DIR}/pre-commit" "${GIT_HOOKS_DIR}/pre-commit"
    else
        echo "Skipping install of pre-commit hook as it already exists."
        echo "If you want to re-install: 'rm ${GIT_HOOKS_DIR}/pre-commit' and then run this script again."
    fi
fi

echo "======================="


if ! command -v poetry >/dev/null 2>&1; then
    echo "ERROR: poetry is missing. Please run the following command to install poetry:
           curl -sSL https://install.python-poetry.org | python3 -" 1>&2
    exit 1
fi

echo "Check if poetry files are valid"
poetry check
echo "Installing dependencies..."
if [ -n "$CI" ]; then
    echo "Detected CI env. Running extra requiements"
    for _ in {1..3}; do
        poetry install --with ci && s=0 && break || s=$?
        rm -rf .venv
        echo "Sleeping for 10 seconds before retrying"
        sleep 10
    done
    if [ $s -ne 0 ]; then
        echo "Failed to install dependencies after 3 tries"
        exit 1
    fi
else
    echo "Detected local env."
    poetry install
fi

echo "=========================="
echo "Done setting up virtualenv with poetry"
echo "Activate the venv by running: poetry shell"
echo "Deactivate by running: deactivate"


echo "======================="

if [ -n "$CI" ]; then
    echo "Detected CI env. Running npm ci..."
    npm ci --cache .npm --prefer-offline
elif [ -n "$NO_NPM" ]; then
    echo "Skipping npm node modules setup as environment varialbe NO_NPM is set"
else
    if ! command -v npm >/dev/null 2>&1; then
        echo "Skipping npm node modules as 'npm' command was not found!!"
        echo "node and npm are optional but recommended. We use node for validating README files."
        echo "You can install node and npm on your machine."
        echo "and then run: 'npm install'"
    else
        echo "Running: npm install ..."        
        npm install
    fi
fi