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* Bob command execution module.
* Handles execution of individual and series commands with output capture.
*
* @module runner
*/
"use strict";
import async from "async";
import child from "child_process";
import fs from "fs";
import { mkdirp } from "mkdirp";
import p from "path";
/**
* Execute a single command and capture its output.
*
* @param {String} command: the command to execute
* @param {Object} opts:
* - cwd: base directory where the commands should be executed from
* - quiet: don't display command output if quiet
* - task: Bob task name, used to create output directory
* - type: Bob task type name, used to create output directory
* - dir: report directory where process output will be written into a file
* @param {Function} cb: standard cb(err, result) callback
*/
function exec(command, opts, cb) {
console.log("%s | %s", opts.task.cyan, command);
const cproc = child.exec(command, opts, cb),
wstream = fs.createWriteStream(p.join(opts.dir, opts.type + ".txt"));
cproc.stdout.on("data", (data) => {
if (!opts.quiet) {
process.stdout.write(data);
}
wstream.write(data);
});
cproc.stderr.on("data", (data) => {
if (!opts.quiet) {
process.stderr.write(data);
}
wstream.write(data);
});
}
/**
* Execute multiple commands in series.
*
* @param {Array} commands: an array of commands, each command contains:
* - exec: executable command line, to be executed on shell
* - meta: command metadata, task and type
* @param {Object} opts:
* - cwd: base directory where the commands should be executed from
* - tmp: temporary directory where the command output will be written
* - quiet: don't display command output if quiet
* @param {Function} cb: standard cb(err, result) callback
*/
function execSeries(commands, opts, cb) {
function _exec(command, cb) {
const base = command.meta.task == "clean" ? opts.tmp : opts.cwd;
const dir = p.join(base, ".bob", command.meta.task);
mkdirp.sync(dir);
opts.task = command.meta.task;
opts.type = command.meta.type;
opts.dir = dir;
exec(command.exec, opts, cb);
}
async.eachSeries(commands, _exec, cb);
}
const exports = {
exec: exec,
execSeries: execSeries,
};
export { exports as default };
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