Matt Aitken
56 lines
1.4 KiB
TypeScript
56 lines
1.4 KiB
TypeScript
import pathModule from "path";
|
|
import { pathExists } from "./fileSystem";
|
|
import { parse } from "tsconfck";
|
|
|
|
type Options = { projectPath: string; isTypescriptProject: boolean; extraDirectories?: string[] };
|
|
|
|
// Find the alias that points to the extra directories, or root if none are specified directory.
|
|
// So for example, the paths object could be:
|
|
// {
|
|
// "@/*": ["./src/*"]
|
|
// }
|
|
// In this case, we would return "@"
|
|
export async function getPathAlias({
|
|
projectPath,
|
|
isTypescriptProject,
|
|
extraDirectories,
|
|
}: Options) {
|
|
const configFileName = isTypescriptProject ? "tsconfig.json" : "jsconfig.json";
|
|
const tsConfigPath = pathModule.join(projectPath, configFileName);
|
|
const configFileExists = await pathExists(tsConfigPath);
|
|
|
|
//no config and javascript, no alias
|
|
if (!isTypescriptProject && !configFileExists) {
|
|
return;
|
|
}
|
|
|
|
const { tsconfig } = await parse(tsConfigPath);
|
|
|
|
const paths = tsconfig?.compilerOptions?.paths;
|
|
if (paths === undefined) {
|
|
return;
|
|
}
|
|
|
|
const alias = Object.keys(paths).find((key) => {
|
|
const value = paths[key];
|
|
|
|
if (value.length === 0) {
|
|
return false;
|
|
}
|
|
|
|
const path = value[0];
|
|
if (extraDirectories && extraDirectories.length > 0) {
|
|
return path === `./${extraDirectories.join("/")}/*`;
|
|
} else {
|
|
return path === "./*";
|
|
}
|
|
});
|
|
|
|
// Make sure to remove the trailing "/*"
|
|
if (alias) {
|
|
return alias.slice(0, -2);
|
|
}
|
|
|
|
return;
|
|
}
|