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index.js
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index.js
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"use strict";
const pMap = require("p-map");
const Command = require("@lerna/command");
const npmRunScript = require("@lerna/npm-run-script");
const batchPackages = require("@lerna/batch-packages");
const runParallelBatches = require("@lerna/run-parallel-batches");
const output = require("@lerna/output");
const ValidationError = require("@lerna/validation-error");
const { getFilteredPackages } = require("@lerna/filter-options");
module.exports = factory;
function factory(argv) {
return new RunCommand(argv);
}
class RunCommand extends Command {
get requiresGit() {
return false;
}
initialize() {
const { script, npmClient = "npm" } = this.options;
this.script = script;
this.args = this.options["--"] || [];
this.npmClient = npmClient;
if (!script) {
throw new ValidationError("ENOSCRIPT", "You must specify a lifecycle script to run");
}
// inverted boolean options
this.bail = this.options.bail !== false;
this.prefix = this.options.prefix !== false;
let chain = Promise.resolve();
chain = chain.then(() => getFilteredPackages(this.packageGraph, this.execOpts, this.options));
chain = chain.then(filteredPackages => {
this.packagesWithScript =
script === "env"
? filteredPackages
: filteredPackages.filter(pkg => pkg.scripts && pkg.scripts[script]);
});
return chain.then(() => {
this.count = this.packagesWithScript.length;
this.packagePlural = this.count === 1 ? "package" : "packages";
this.joinedCommand = [this.npmClient, "run", this.script].concat(this.args).join(" ");
if (!this.count) {
this.logger.success("run", `No packages found with the lifecycle script '${script}'`);
// still exits zero, aka "ok"
return false;
}
this.batchedPackages = this.toposort
? batchPackages(this.packagesWithScript, this.options.rejectCycles)
: [this.packagesWithScript];
});
}
execute() {
this.logger.info(
"",
"Executing command in %d %s: %j",
this.count,
this.packagePlural,
this.joinedCommand
);
let chain = Promise.resolve();
if (this.options.parallel) {
chain = chain.then(() => this.runScriptInPackagesParallel());
} else {
chain = chain.then(() => this.runScriptInPackagesBatched());
}
if (this.bail) {
// only the first error is caught
chain = chain.catch(err => {
process.exitCode = err.code;
// rethrow to halt chain and log properly
throw err;
});
} else {
// detect error (if any) from collected results
chain = chain.then(results => {
/* istanbul ignore else */
if (results.some(result => result.failed)) {
// propagate "highest" error code, it's probably the most useful
const codes = results.filter(result => result.failed).map(result => result.code);
const exitCode = Math.max(...codes, 1);
this.logger.error("", "Received non-zero exit code %d during execution", exitCode);
process.exitCode = exitCode;
}
});
}
return chain.then(() => {
this.logger.success(
"run",
"Ran npm script '%s' in %d %s:",
this.script,
this.count,
this.packagePlural
);
this.logger.success("", this.packagesWithScript.map(pkg => `- ${pkg.name}`).join("\n"));
});
}
getOpts(pkg) {
// these options are NOT passed directly to execa, they are composed in npm-run-script
return {
args: this.args,
npmClient: this.npmClient,
prefix: this.prefix,
reject: this.bail,
pkg,
};
}
runScriptInPackagesBatched() {
const runner = this.options.stream
? pkg => this.runScriptInPackageStreaming(pkg)
: pkg => this.runScriptInPackageCapturing(pkg);
return runParallelBatches(this.batchedPackages, this.concurrency, runner).then(batchedResults =>
batchedResults.reduce((arr, batch) => arr.concat(batch), [])
);
}
runScriptInPackagesParallel() {
return pMap(this.packagesWithScript, pkg => this.runScriptInPackageStreaming(pkg));
}
runScriptInPackageStreaming(pkg) {
return npmRunScript.stream(this.script, this.getOpts(pkg));
}
runScriptInPackageCapturing(pkg) {
return npmRunScript(this.script, this.getOpts(pkg)).then(result => {
output(result.stdout);
return result;
});
}
}
module.exports.RunCommand = RunCommand;