ts-build.sh

#!/bin/sh
set -e
# Purposefully not using `set -o xtrace`, for friendlier output.

# Presentational variables and functions declaration.

BLUE="\033[0;34m"
GREEN="\033[0;32m"
YELLOW="\033[0;33m"
RED="\033[0;31m"
NOCOLOR="\033[0m"
DIM="\033[2m"

blue() {
    printf "${BLUE}$1${NOCOLOR}"
}
green() {
    printf "${GREEN}$1${NOCOLOR}"
}
yellow() {
    printf "${YELLOW}$1${NOCOLOR}"
}
red() {
    printf "${RED}$1${NOCOLOR}"
}
dim() {
    printf "${DIM}$1${NOCOLOR}"
}


# Build function declaration.

build_node() {
    blue "[Node build] "
    echo "Adding ./dist/cjs/package.json"
    if ! [ -d ./dist/cjs ];
    then
        mkdir ./dist/cjs
    fi
    rm -f ./dist/cjs/package.json
    cat <<EOT >> ./dist/cjs/package.json
{
    "type": "commonjs"
}
EOT
    echo "> npm run build:node"
    printf "${BLUE}[Node build] Working...\n"

    # Transpile ESM code to CJS using Babel and place in dist/cjs
    npx babel --config-file ./.babelrc dist/esm --out-dir dist/cjs --copy-files

    green "DONE"

    echo "\n";
}

build_esm() {
    if [ -f ./tsconfig.prod.esm.json ];
    then
        blue "[ESM build] "
        echo "Using tsconfig.prod.esm.json"

        echo "> tsc --build ./tsconfig.prod.esm.json"
        printf "${BLUE}[ESM build] Working... "

        # Compile ESM code using Typescript compiler
        npx tsc --build ./tsconfig.prod.esm.json

        # Copy WASM wrapper code to ESM build
        cp -rf ./src.ts/wasm ./dist/esm

        green "DONE"
    else
        echo "Skipping ESM build (no config available)."
    fi
    echo "\n";
}

post_build_fixes() {
    blue "[Post Build Fixes]"
    if [ -f ./dist/esm/index.js ];
    then
        echo "Adding ./dist/cjs/package.json"
        rm -f ./dist/cjs/package.json
        cat <<EOT >> ./dist/cjs/package.json
{
    "type": "commonjs"
}
EOT
        echo "Adding ./dist/esm/package.json"
        rm -f ./dist/esm/package.json
        cat <<EOT >> ./dist/esm/package.json
{
    "type": "module"
}
EOT
    else
        echo "Skipping post build fixes (no ESM setup yet)."
    fi
    echo "\n";
}
build_esm
build_node
post_build_fixes