111 lines
2.9 KiB
TypeScript
111 lines
2.9 KiB
TypeScript
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import { dirnames } from "./path";
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import { getPackage, Package } from "./local";
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class OrderedSet {
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_keys: Array<string>;
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_values: Record<string, boolean>
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constructor() {
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this._keys = [ ];
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this._values = { };
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}
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add(key: string): void {
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this._values[key] = true;
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this._keys = null;
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}
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contains(key: string): boolean {
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return !!this._values[key];
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}
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_sort(): void {
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if (this._keys != null) { return; }
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this._keys = Object.keys(this._values);
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this._keys.sort();
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}
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get length(): number {
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this._sort();
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return this._keys.length;
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}
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get(index: number): string {
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this._sort();
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return this._keys[index];
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}
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}
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export function getOrdered(skipNobuild?: boolean): Array<string> {
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const packages: Record<string, Package > = { };
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const filenames: Record<string, string> = { };
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// Maps packages to names to list of dependencies; { [ name:string]: Array<name: string> }
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const deps: Record<string, OrderedSet> = { };
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let addDeps = (name: string, depends: Record<string, string>) => {
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Object.keys(depends).forEach((dep) => {
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// Not a package we manage
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if (packages[dep] == null) { return; }
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deps[name].add(dep);
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});
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}
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for (let i = 0; i < dirnames.length; i++) {
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let dirname = dirnames[i];
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let info = getPackage(dirname);
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if (skipNobuild && info._ethers_nobuild) { continue; }
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packages[info.name] = info;
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filenames[info.name] = dirname;
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}
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Object.keys(packages).forEach((name) => {
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let info = packages[name];
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deps[info.name] = new OrderedSet();
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addDeps(info.name, info.dependencies || { });
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addDeps(info.name, info.devDependencies || { });
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});
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let ordered: Array<string> = [ ];
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let remaining = Object.keys(deps);
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let isSatisfied = (name: string) => {
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for (let i = 0; i < deps[name].length; i++) {
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if (ordered.indexOf(deps[name].get(i)) === -1) { return false; }
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}
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return true;
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}
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while (remaining.length) {
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let bail = true;
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for (let i = 0; i < remaining.length; i++) {
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if (!isSatisfied(remaining[i])) { continue; }
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bail = false;
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ordered.push(remaining[i]);
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remaining.splice(i, 1);
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break;
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}
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if (bail) {
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throw new Error("Nothing processed; circular dependencies...");
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}
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}
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return ordered.map((name) => filenames[name]);
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}
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export function sort(dirnames: Array<string>): void {
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let ordered = getOrdered();
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dirnames.sort((a, b) => {
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let ai = ordered.indexOf(getPackage(a).name);
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let bi = ordered.indexOf(getPackage(b).name);
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if (ai === -1 || bi === -1) {
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throw new Error("unknown dirname - " + [a, b].join(", "));
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}
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return ai - bi;
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});
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}
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