devsite/node_modules/@11ty/dependency-tree/main.js

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2024-07-08 01:49:38 +00:00
const path = require("path");
function getAbsolutePath(filename) {
let normalizedFilename = path.normalize(filename); // removes dot slash
let hasDotSlash = filename.startsWith("./");
return hasDotSlash ? path.join(path.resolve("."), normalizedFilename) : normalizedFilename;
}
function getRelativePath(filename) {
let normalizedFilename = path.normalize(filename); // removes dot slash
let workingDirectory = path.resolve(".");
let result = "./" + (normalizedFilename.startsWith(workingDirectory) ? normalizedFilename.substr(workingDirectory.length + 1) : normalizedFilename);
return result;
}
function getNodeModuleName(filename) {
let foundNodeModules = false;
let moduleName = [];
let s = filename.split(path.sep);
for(let entry of s) {
if(foundNodeModules) {
moduleName.push(entry);
if(!entry.startsWith("@")) {
return moduleName.join("/");
}
}
if(entry === "node_modules") {
foundNodeModules = true;
}
}
return false;
}
/* unordered */
function getDependenciesFor(filename, avoidCircular, optionsArg = {}) {
// backwards compatibility with `nodeModuleNamesOnly` boolean option
// Using `nodeModuleNames` property moving forward
if(("nodeModuleNamesOnly" in optionsArg) && !("nodeModuleNames" in optionsArg)) {
if(optionsArg.nodeModuleNamesOnly === true) {
optionsArg.nodeModuleNames = "only";
}
if(optionsArg.nodeModuleNamesOnly === false) {
optionsArg.nodeModuleNames = "exclude";
}
}
let options = Object.assign({
allowNotFound: false,
nodeModuleNames: "exclude", // also "include" or "only"
}, optionsArg);
let absoluteFilename = getAbsolutePath(filename)
try {
require(absoluteFilename);
} catch(e) {
if(e.code === "MODULE_NOT_FOUND" && options.allowNotFound) {
// do nothing
} else {
throw e;
}
}
let mod;
for(let entry in require.cache) {
if(entry === absoluteFilename) {
mod = require.cache[entry];
break;
}
}
let dependencies = new Set();
if(!mod) {
if(!options.allowNotFound) {
throw new Error(`Could not find ${filename} in @11ty/dependency-tree`);
}
} else {
let relativeFilename = getRelativePath(mod.filename);
if(!avoidCircular) {
avoidCircular = {};
} else if(options.nodeModuleNames !== "only") {
dependencies.add(relativeFilename);
}
avoidCircular[relativeFilename] = true;
if(mod.children) {
for(let child of mod.children) {
let relativeChildFilename = getRelativePath(child.filename);
let nodeModuleName = getNodeModuleName(child.filename);
if(options.nodeModuleNames !== "exclude" && nodeModuleName) {
dependencies.add(nodeModuleName);
}
// Add dependencies of this dependency (not top level node_modules)
if(nodeModuleName === false) {
if(!dependencies.has(relativeChildFilename) && // avoid infinite looping with circular deps
!avoidCircular[relativeChildFilename] ) {
for(let dependency of getDependenciesFor(relativeChildFilename, avoidCircular, options)) {
dependencies.add(dependency);
}
}
}
}
}
}
return dependencies;
}
function getCleanDependencyListFor(filename, options = {}) {
return Array.from( getDependenciesFor(filename, null, options) );
}
module.exports = getCleanDependencyListFor;
module.exports.getNodeModuleName = getNodeModuleName;