@jqassistant/ts-lce
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Tool to extract language concepts from a TypeScript codebase and export them to a JSON file.
140 lines (139 loc) • 6.43 kB
JavaScript
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.NodeUtils = void 0;
const modulepath_utils_1 = require("./modulepath.utils");
const path_1 = __importDefault(require("path"));
const file_utils_1 = require("./file.utils");
const fs = __importStar(require("fs"));
const typescript_1 = __importDefault(require("typescript"));
class NodeUtils {
static packageMappings = new Map();
/**
* maps project root paths to a map of additional paths to be considered for resolving import paths
*/
static tsConfigs = new Map();
/**
* Tries to determine the Node.js package name for a given source file path.
* Tries to resolve @types/* packages to their implementation counterparts.
*/
static getPackageNameForPath(projectRootPath, pathToPackageFile) {
if (modulepath_utils_1.ModulePathUtils.getPathType(pathToPackageFile) === "node") {
return pathToPackageFile;
}
if (modulepath_utils_1.ModulePathUtils.getPathType(pathToPackageFile) === "relative") {
pathToPackageFile = path_1.default.resolve(projectRootPath, pathToPackageFile);
}
const packagePath = fs.realpathSync.native(path_1.default.dirname(pathToPackageFile));
if (this.packageMappings.has(packagePath)) {
return this.packageMappings.get(packagePath);
}
let currentPath = packagePath;
while (currentPath !== projectRootPath && !path_1.default.relative(projectRootPath, currentPath).startsWith("..")) {
const allFiles = file_utils_1.FileUtils.getAllFiles(currentPath).map((f) => file_utils_1.FileUtils.normalizePath(f));
for (const file of allFiles) {
if (path_1.default.basename(file) === "package.json") {
const data = fs.readFileSync(file, "utf8");
const json = JSON.parse(data);
let packageName = json["name"];
if (packageName && typeof packageName === "string") {
if (packageName.startsWith("@types/")) {
packageName = packageName.substring(7); // remove @types/ prefix
}
this.packageMappings.set(packagePath, packageName);
return packageName;
}
}
}
currentPath = path_1.default.dirname(currentPath);
}
}
/**
* Tries to resolve the given import path.
* Uses TypeScript module resolver first and `require.resolve` as a fallback.
*
* NOTE: Throws Error on failure of both resolution methods.
*/
static resolveImportPath(importPath, projectInfo, sourceFilePathAbsolute) {
if (!this.tsConfigs.has(projectInfo.configPath)) {
this.tsConfigs.set(projectInfo.configPath, this.parseTsConfig(projectInfo.configPath));
}
const tsconfig = this.tsConfigs.get(projectInfo.configPath);
let tsResolvedModule;
try {
const module = typescript_1.default.resolveModuleName(importPath, sourceFilePathAbsolute, tsconfig.options, this.moduleResolutionHost);
tsResolvedModule = module.resolvedModule?.resolvedFileName;
}
catch (e) { }
if (tsResolvedModule) {
return file_utils_1.FileUtils.normalizePath(tsResolvedModule);
}
else {
let jsResolvedModule;
try {
jsResolvedModule = require.resolve(importPath, { paths: [projectInfo.rootPath] });
}
catch (e) { }
if (jsResolvedModule) {
return file_utils_1.FileUtils.normalizePath(jsResolvedModule);
}
else {
throw new Error(`Could not resolve import: ${importPath}`);
}
}
}
static moduleResolutionHost = {
fileExists: typescript_1.default.sys.fileExists,
readFile: typescript_1.default.sys.readFile,
realpath: typescript_1.default.sys.realpath,
directoryExists: typescript_1.default.sys.directoryExists,
getCurrentDirectory: typescript_1.default.sys.getCurrentDirectory,
getDirectories: typescript_1.default.sys.getDirectories,
};
static parseTsConfig(configPath) {
const configFile = typescript_1.default.readConfigFile(configPath, typescript_1.default.sys.readFile);
const parseConfigHost = {
useCaseSensitiveFileNames: typescript_1.default.sys.useCaseSensitiveFileNames,
readDirectory: typescript_1.default.sys.readDirectory,
fileExists: typescript_1.default.sys.fileExists,
readFile: typescript_1.default.sys.readFile,
};
return typescript_1.default.parseJsonConfigFileContent(configFile.config, parseConfigHost, path_1.default.dirname(configPath), {});
}
}
exports.NodeUtils = NodeUtils;