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98 lines
2.6 KiB
JavaScript

"use strict";
const Promise = require("bluebird");
const path = require("path");
const chalk = require("chalk");
const pad = require("pad");
const yargs = require("yargs");
const nanoid = require("nanoid");
const fs = Promise.promisifyAll(require("fs"));
const ldd = require("./lib/ldd");
const findPackages = require("./lib/find-packages");
const generateEnvironment = require("./lib/generate-environment");
const nixBuild = require("./lib/nix-build");
const runProgram = require("./lib/run-program");
let argv = yargs
.boolean("run")
.argv;
function printPackages(groupedPackages) {
let packageNameWidth = Object.keys(groupedPackages).reduce((highest, pkg) => Math.max(highest, pkg.length), 0);
Object.keys(groupedPackages).sort().forEach((pkg) => {
console.log(` ${chalk.bold(pad(pkg, packageNameWidth))} ${groupedPackages[pkg].join(", ")}`);
});
}
function groupPackages(packages) {
let grouped = {};
packages.forEach((pkg) => {
if (grouped[pkg.package] == null) {
grouped[pkg.package] = [];
}
grouped[pkg.package].push(pkg.library);
});
return grouped;
}
let target = argv._[0];
Promise.try(() => {
if (target == null) {
throw new Error("Must specify a binary to analyze");
} else {
return ldd(target);
}
}).then((libraries) => {
let missingLibraries = libraries
.filter((item) => item.location == null)
.map((item) => item.library);
return Promise.try(() => {
return findPackages(missingLibraries)
}).then((groupedResults) => {
return Object.entries(groupedResults).map(([ library, pkg ]) => {
return { library, package: pkg };
});
});
}).then((results) => {
let groupedPackages = groupPackages(results);
let binaryName = path.basename(target);
console.log("");
console.log(chalk.cyan(`DepFish has guessed the following set of dependencies for ${chalk.bold(binaryName)}:`));
console.log("");
printPackages(groupedPackages);
console.log("");
if (argv.run) {
console.log(chalk.cyan(`Preparing to run ${chalk.bold(binaryName)}...`));
let buildExpression = generateEnvironment({
binaryName: binaryName,
targetBinary: target,
packages: Object.keys(groupedPackages)
.concat([ "systemd" ]) /* Hack for libudev SIGTRAP issue; this may need to be detected interactively in the future */
});
let expressionPath = `/tmp/depfish-expr-${nanoid()}`;
return Promise.try(() => {
return fs.writeFileAsync(expressionPath, buildExpression);
}).then(() => {
console.log("Expression path:", expressionPath);
return nixBuild(expressionPath);
}).then((outPath) => {
console.log("Build path:", outPath);
return runProgram(`${outPath}/bin/${binaryName}`);
});
}
});