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#!/usr/bin/env node
// Packages
const chalk = require("chalk");
const minimist = require("minimist");
const table = require("text-table");
const ms = require("ms");
// Ours
const strlen = require("../lib/strlen");
const NowAlias = require("../lib/alias");
const login = require("../lib/login");
const cfg = require("../lib/cfg");
const { error } = require("../lib/error");
const toHost = require("../lib/to-host");
const { reAlias } = require("../lib/re-alias");
const exit = require("../lib/utils/exit");
const logo = require("../lib/utils/output/logo");
const promptBool = require("../lib/utils/input/prompt-bool");
const argv = minimist(process.argv.slice(2), {
string: ["config", "token", "rules"],
boolean: ["help", "debug"],
alias: {
help: "h",
config: "c",
rules: "r",
debug: "d",
token: "t"
}
});
const subcommand = argv._[0];
// options
const help = () => {
console.log(
`
${chalk.bold(`${logo} now alias`)} <ls | set | rm> <deployment> <alias>
${chalk.dim("Options:")}
-h, --help Output usage information
-c ${chalk.bold.underline("FILE")}, --config=${chalk.bold.underline("FILE")} Config file
-r ${chalk.bold.underline("RULES_FILE")}, --rules=${chalk.bold.underline("RULES_FILE")} Rules file
-d, --debug Debug mode [off]
-t ${chalk.bold.underline("TOKEN")}, --token=${chalk.bold.underline("TOKEN")} Login token
${chalk.dim("Examples:")}
${chalk.gray("–")} Lists all your aliases:
${chalk.cyan("$ now alias ls")}
${chalk.gray("–")} Adds a new alias to ${chalk.underline("my-api.now.sh")}:
${chalk.cyan(`$ now alias set ${chalk.underline("api-ownv3nc9f8.now.sh")} ${chalk.underline("my-api.now.sh")}`)}
The ${chalk.dim("`.now.sh`")} suffix can be ommited:
${chalk.cyan("$ now alias set api-ownv3nc9f8 my-api")}
The deployment id can be used as the source:
${chalk.cyan("$ now alias set deploymentId my-alias")}
Custom domains work as alias targets:
${chalk.cyan(`$ now alias set ${chalk.underline("api-ownv3nc9f8.now.sh")} ${chalk.underline("my-api.com")}`)}
${chalk.dim("–")} The subcommand ${chalk.dim("`set`")} is the default and can be skipped.
${chalk.dim("–")} ${chalk.dim("`http(s)://`")} in the URLs is unneeded / ignored.
${chalk.gray("–")} Add and modify path based aliases for ${chalk.underline("zeit.ninja")}:
${chalk.cyan(`$ now alias ${chalk.underline("zeit.ninja")} -r ${chalk.underline("rules.json")}`)}
Export effective routing rules:
${chalk.cyan(`$ now alias ls aliasId --json > ${chalk.underline("rules.json")}`)}
${chalk.cyan(`$ now alias ls zeit.ninja`)}
${chalk.gray("–")} Removing an alias:
${chalk.cyan("$ now alias rm aliasId")}
To get the list of alias ids, use ${chalk.dim("`now alias ls`")}.
${chalk.dim("Alias:")} ln
`
);
};
// options
const debug = argv.debug;
const apiUrl = argv.url || "https://api.zeit.co";
if (argv.config) {
cfg.setConfigFile(argv.config);
}
if (argv.help) {
help();
exit(0);
} else {
const config = cfg.read();
Promise.resolve(argv.token || config.token || login(apiUrl))
.then(async token => {
try {
await run(token);
} catch (err) {
if (err.userError) {
error(err.message);
} else {
error(`Unknown error: ${err}\n${err.stack}`);
}
exit(1);
}
})
.catch(e => {
error(`Authentication error – ${e.message}`);
exit(1);
});
}
async function run(token) {
const alias = new NowAlias(apiUrl, token, { debug });
const args = argv._.slice(1);
switch (subcommand) {
case "ls":
case "list": {
if (args.length === 1) {
const list = await alias.listAliases();
const item = list.find(
e => e.uid === argv._[1] || e.alias === argv._[1]
);
if (!item || !item.rules) {
error(`Could not match path alias for: ${argv._[1]}`);
return exit(1);
}
if (argv.json) {
console.log(JSON.stringify({ rules: item.rules }, null, 2));
} else {
const header = [
["", "pathname", "method", "dest"].map(s => chalk.dim(s))
];
const text = list.length === 0
? null
: table(
header.concat(
item.rules.map(rule => {
return [
"",
rule.pathname ? rule.pathname : "",
rule.method ? rule.method : "*",
rule.dest
];
})
),
{
align: ["l", "l", "l", "l"],
hsep: " ".repeat(2),
stringLength: strlen
}
);
console.log(text);
}
break;
} else if (args.length !== 0) {
error(
`Invalid number of arguments. Usage: ${chalk.cyan("`now alias ls`")}`
);
return exit(1);
}
const start_ = new Date();
const list = await alias.list();
const urls = new Map(list.map(l => [l.uid, l.url]));
const aliases = await alias.ls();
aliases.sort((a, b) => new Date(b.created) - new Date(a.created));
const current = new Date();
const header = [
["", "id", "source", "url", "created"].map(s => chalk.dim(s))
];
const text = list.length === 0
? null
: table(
header.concat(
aliases.map(_alias => {
const _url = chalk.underline(`https://${_alias.alias}`);
const target = _alias.deploymentId;
let _sourceUrl;
if (urls.get(target)) {
_sourceUrl = chalk.underline(`https://${urls.get(target)}`);
} else if (_alias.rules) {
_sourceUrl = chalk.gray(
`[${_alias.rules.length} custom rule${_alias.rules.length > 1 ? "s" : ""}]`
);
} else {
_sourceUrl = chalk.gray("<null>");
}
const time = chalk.gray(
ms(current - new Date(_alias.created)) + " ago"
);
return [
"",
// we default to `''` because some early aliases didn't
// have an uid associated
_alias.uid === null ? "" : _alias.uid,
_sourceUrl,
_url,
time
];
})
),
{
align: ["l", "r", "l", "l"],
hsep: " ".repeat(2),
stringLength: strlen
}
);
const elapsed_ = ms(new Date() - start_);
console.log(
`> ${aliases.length} alias${aliases.length === 1 ? "" : "es"} found ${chalk.gray(`[${elapsed_}]`)}`
);
if (text) {
console.log("\n" + text + "\n");
}
break;
}
case "rm":
case "remove": {
const _target = String(args[0]);
if (!_target) {
const err = new Error("No alias id specified");
err.userError = true;
throw err;
}
if (args.length !== 1) {
error(
`Invalid number of arguments. Usage: ${chalk.cyan("`now alias rm <id>`")}`
);
return exit(1);
}
const _aliases = await alias.ls();
const _alias = findAlias(_target, _aliases);
if (!_alias) {
const err = new Error(
`Alias not found by "${_target}". Run ${chalk.dim("`now alias ls`")} to see your aliases.`
);
err.userError = true;
throw err;
}
try {
const confirmation = await confirmDeploymentRemoval(alias, _alias);
if (!confirmation) {
console.log("\n> Aborted");
process.exit(0);
}
const start = new Date();
await alias.rm(_alias);
const elapsed = ms(new Date() - start);
console.log(
`${chalk.cyan("> Success!")} Alias ${chalk.bold(_alias.uid)} removed [${elapsed}]`
);
} catch (err) {
error(err);
exit(1);
}
break;
}
case "add":
case "set": {
if (argv.rules) {
await updatePathAlias(alias, argv._[0], argv.rules);
break;
}
if (args.length !== 2) {
error(
`Invalid number of arguments. Usage: ${chalk.cyan("`now alias set <id> <domain>`")}`
);
return exit(1);
}
await alias.set(String(args[0]), String(args[1]));
break;
}
default: {
if (argv._.length === 0) {
await reAlias(token, null, help, exit, apiUrl, debug, alias);
break;
}
if (argv.rules) {
await updatePathAlias(alias, argv._[0], argv.rules);
} else if (argv._.length === 2) {
await alias.set(String(argv._[0]), String(argv._[1]));
} else if (argv._.length >= 3) {
error("Invalid number of arguments");
help();
exit(1);
} else {
error("Please specify a valid subcommand: ls | set | rm");
help();
exit(1);
}
}
}
alias.close();
}
async function confirmDeploymentRemoval(alias, _alias) {
const deploymentsList = await alias.list();
const urls = new Map(deploymentsList.map(l => [l.uid, l.url]));
const time = chalk.gray(ms(new Date() - new Date(_alias.created)) + " ago");
const _sourceUrl = chalk.underline(
`https://${urls.get(_alias.deploymentId)}`
);
const tbl = table(
[
[_alias.uid, _sourceUrl, chalk.underline(`https://${_alias.alias}`), time]
],
{ align: ["l", "r", "l"], hsep: " ".repeat(6) }
);
const msg = "> The following alias will be removed permanently\n" +
` ${tbl} \nAre you sure?`;
return await promptBool(msg);
}
function findAlias(alias, list) {
let key;
let val;
if (/\./.test(alias)) {
val = toHost(alias);
key = "alias";
} else {
val = alias;
key = "uid";
}
const _alias = list.find(d => {
if (d[key] === val) {
if (debug) {
console.log(`> [debug] matched alias ${d.uid} by ${key} ${val}`);
}
return true;
}
// match prefix
if (`${val}.now.sh` === d.alias) {
if (debug) {
console.log(`> [debug] matched alias ${d.uid} by url ${d.host}`);
}
return true;
}
return false;
});
return _alias;
}
async function updatePathAlias(alias, aliasName, rules) {
const start = new Date();
const res = await alias.updatePathBasedroutes(String(aliasName), rules);
const elapsed = ms(new Date() - start);
if (res.error) {
const err = new Error(res.error.message);
err.userError = true;
throw err;
} else {
console.log(
`${chalk.cyan("> Success!")} ${res.ruleCount} rules configured for ${chalk.underline(res.alias)} [${elapsed}]`
);
}
}