.envrc

#!/bin/bash
# Users of direnv can run `direnv allow .` here to automatically update the
# GOPATH to whatever directory this repository is cloned into, whenever they
# enter this directory or any descendent. https://direnv.net/

# record the prior Go binary path (for later usage in bin/go as an escape hatch
# when $USE_SYSTEM_GO is set)
SYSTEM_GO=$(command -v go)
export SYSTEM_GO

# eliminate any user custom $GOPATH, since the stdlib `layout go` merely prepends
GOPATH=$(pwd)
export GOPATH

# reduce unnecessary calls in the scripts to resolve WORKSPACE_ROOT
WORKSPACE_ROOT=$(pwd)
export WORKSPACE_ROOT

# prioritize tools/bazel over system installed. `tools/bazel` is a standard 
# location where a locally installed Bazel binary will first look for.
PATH_add tools

# Check the Python 3 is installed.
if ! has python3; then
    echo "ERROR: Python 3 is not installed. Please install it."
    exit 1
fi

# Minimum Python version required for Python-based tools, e.g., ./tools/sandbox.py
python_version=3.9

# Check the minimum Python version
if ! ./tools/assert_python_version.py $python_version; then
    exit 1
fi

source_env_if_exists .envrc.local