[Refactor] copy getProjectTempDir from npm-lockfile v2, since v3 …

…removes it

.eslintrc

@@ -5,6 +5,17 @@
 
 	"rules": {
 		"array-bracket-newline": 0,
+		"func-name-matching": 0,
 		"func-style": 0,
 	},
+
+	"overrides": [
+		{
+			"files": "./getProjectTempDir.js",
+			"rules": {
+				"max-nested-callbacks": 0,
+				"sort-keys": 0,
+			},
+		},
+	],
 }

bin.js

@@ -4,7 +4,6 @@
 
 const npx = require('libnpx');
 const getLockfile = require('npm-lockfile/getLockfile');
-const getProjectTempDir = require('npm-lockfile/getProjectTempDir');
 const finder = require('find-package-json');
 const promisify = require('util.promisify');
 const semver = require('semver');
@@ -16,6 +15,8 @@ const writeFile = promisify(require('fs').writeFile);
 const copyFile = promisify(require('fs-copy-file'));
 const { execSync } = require('child_process');
 
+const getProjectTempDir = require('./getProjectTempDir');
+
 const { filename: pkg } = finder(process.cwd()).next();
 const pkgDir = path.dirname(pkg);
 

getProjectTempDir.js

@@ -0,0 +1,82 @@
+'use strict';
+
+const tmp = require('tmp');
+const nodeCleanup = require('node-cleanup');
+const semver = require('semver');
+const promisify = require('util.promisify');
+const rimraf = require('rimraf');
+const colors = require('colors/safe');
+
+const path = require('path');
+const { exec, execSync } = require('child_process');
+const writeFile = promisify(require('fs').writeFile);
+
+const cleanupHandlers = [];
+const finalCleanup = function finalCleanup() {
+	for (let i = 0; i < cleanupHandlers.length; ++i) {
+		cleanupHandlers[i]();
+	}
+};
+
+let rootTempDir;
+const getRootTempDir = function getRootTempDir(npmNeeded, logger = () => {}) {
+	if (!rootTempDir) {
+		logger(colors.blue('Creating root temp directory, to hold temporary lockfiles...'));
+		rootTempDir = new Promise((resolve, reject) => {
+			tmp.dir((err, tmpDir, cleanup) => {
+				if (err) {
+					reject(err);
+				} else {
+					resolve(tmpDir);
+					cleanupHandlers.push(cleanup);
+					nodeCleanup(finalCleanup);
+				}
+			});
+		}).then((tmpDir) => {
+			const npmV = execSync('npm --version', { encoding: 'utf-8', cwd: tmpDir }).trim();
+			logger(`${colors.blue('Checking npm version:')} \`npm --version\` -> v${npmV}`);
+			if (!semver.satisfies(npmV, npmNeeded)) {
+				const pkgContents = {
+					private: true,
+					name: 'npm-jail',
+					dependencies: {
+						npm: npmNeeded,
+					},
+				};
+				return writeFile(
+					path.join(tmpDir, 'package.json'),
+					JSON.stringify(pkgContents)
+				).then(() => new Promise((resolve, reject) => {
+					cleanupHandlers.unshift(() => {
+						rimraf.sync(path.join(tmpDir, '*'));
+					});
+					exec('npm install --no-package-lock --silent >/dev/null', { cwd: tmpDir }, (err) => {
+						if (err) {
+							reject(err);
+						} else {
+							resolve(tmpDir);
+						}
+					});
+				}));
+			}
+			return tmpDir;
+		});
+	}
+	return rootTempDir;
+};
+
+module.exports = function getProjectTempDir({ npmNeeded = '^6.9.0-0', logger = undefined } = {}) {
+	return getRootTempDir(npmNeeded, logger).then((rootDir) => {
+		const projectDir = path.join(rootDir, 'XXXXXX');
+		return new Promise((resolve, reject) => {
+			tmp.dir({ template: projectDir }, (err, tmpDir, cleanup) => {
+				if (err) {
+					reject(err);
+				} else {
+					resolve(tmpDir);
+					cleanupHandlers.unshift(cleanup);
+				}
+			});
+		});
+	});
+};

package.json

@@ -39,8 +39,10 @@
 		"find-package-json": "^1.2.0",
 		"fs-copy-file": "^2.1.2",
 		"libnpx": "^10.2.4",
+		"node-cleanup": "^2.1.2",
 		"npm-lockfile": "^2.0.4",
 		"semver": "^6.3.0",
+		"tmp": "^0.1.0",
 		"util.promisify": "^1.1.1"
 	},
 	"devDependencies": {