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add longopts? #98

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add longopts? #98

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41 changes: 22 additions & 19 deletions cli.js
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Original file line number Diff line number Diff line change
Expand Up @@ -10,14 +10,14 @@ var dotenvExpand = require('dotenv-expand').expand
function printHelp () {
console.log([
'Usage: dotenv [--help] [--debug] [-e <path>] [-v <name>=<value>] [-p <variable name>] [-c [environment]] [--no-expand] [-- command]',
' --help print help',
' --debug output the files that would be processed but don\'t actually parse them or run the `command`',
' -e <path> parses the file <path> as a `.env` file and adds the variables to the environment',
' -e <path> multiple -e flags are allowed',
' -v <name>=<value> put variable <name> into environment using value <value>',
' -v <name>=<value> multiple -v flags are allowed',
' -p <variable> print value of <variable> to the console. If you specify this, you do not have to specify a `command`',
' -c [environment] support cascading env variables from `.env`, `.env.<environment>`, `.env.local`, `.env.<environment>.local` files',
' --help print help',
' --debug output the files that would be processed but don\'t actually parse them or run the `command`',
' -e, --env <path> parses the file <path> as a `.env` file and adds the variables to the environment',
' -e, --env <path> multiple -e flags are allowed',
' -v, --variable <name>=<value> put variable <name> into environment using value <value>',
' -v, --variable <name>=<value> multiple -v flags are allowed',
' -p, --print <variable> print value of <variable> to the console. If you specify this, you do not have to specify a `command`',
' -c, --config [environment] support cascading env variables from `.env`, `.env.<environment>`, `.env.local`, `.env.<environment>.local` files',
' --no-expand skip variable expansion',
' -o, --override override system variables. Cannot be used along with cascade (-c).',
' command `command` is the actual command you want to run. Best practice is to precede this command with ` -- `. Everything after `--` is considered to be your command. So any flags will not be parsed by this tool but be passed to your command. If you do not do it, this tool will strip those flags'
Expand All @@ -29,28 +29,31 @@ if (argv.help) {
process.exit()
}

const config = argv.c || argv.config;
const override = argv.o || argv.override;
const variable = argv.v || argv.variable;
const env = argv.e || argv.env;

if (argv.c && override) {
if (config && override) {
console.error('Invalid arguments. Cascading env variables conflicts with overrides.')
process.exit(1)
}

var paths = []
if (argv.e) {
if (typeof argv.e === 'string') {
paths.push(argv.e)
if (env) {
if (typeof env === 'string') {
paths.push(env)
} else {
paths.push(...argv.e)
paths.push(...env)
}
} else {
paths.push('.env')
}

if (argv.c) {
if (config) {
paths = paths.reduce((accumulator, path) => accumulator.concat(
typeof argv.c === 'string'
? [`${path}.${argv.c}.local`, `${path}.local`, `${path}.${argv.c}`, path]
? [`${path}.${config}.local`, `${path}.local`, `${path}.${config}`, path]
: [`${path}.local`, path]
), [])
}
Expand All @@ -64,11 +67,11 @@ function validateCmdVariable (param) {
return param
}
var variables = []
if (argv.v) {
if (typeof argv.v === 'string') {
variables.push(validateCmdVariable(argv.v))
if (variable) {
if (typeof variable === 'string') {
variables.push(validateCmdVariable(variable))
} else {
variables.push(...argv.v.map(validateCmdVariable))
variables.push(...variable.map(validateCmdVariable))
}
}
var parsedVariables = dotenv.parse(Buffer.from(variables.join('\n')))
Expand Down