gristlabs_grist-core/app/server/lib/places.ts

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/**
* Utilities related to the layout of the application and where parts are stored.
*/
import * as path from 'path';
/**
* codeRoot is the directory containing ./app with all the JS code.
*/
export const codeRoot = path.dirname(path.dirname(path.dirname(__dirname)));
let _cachedAppRoot: string|undefined;
/**
* Returns the appRoot, i.e. the directory containing ./sandbox, ./node_modules,
* etc.
*/
export function getAppRoot(): string {
if (_cachedAppRoot) { return _cachedAppRoot; }
_cachedAppRoot = getAppRootWithoutCaching();
return _cachedAppRoot;
}
// Uncached version of getAppRoot()
function getAppRootWithoutCaching(): string {
if (process.env.APP_ROOT_PATH) { return process.env.APP_ROOT_PATH; }
if (codeRoot.endsWith('/_build/core') || codeRoot.endsWith('\\_build\\core')) {
return path.dirname(path.dirname(codeRoot));
}
return (codeRoot.endsWith('/_build') || codeRoot.endsWith('\\_build')) ? path.dirname(codeRoot) : codeRoot;
}
/**
* When packaged as an electron application, most files are stored in a .asar
* archive. Most, but not all. This method takes the "application root"
* which is that .asar file in packaged form, and returns a directory where
* remaining files are available on the regular filesystem.
*/
export function getUnpackedAppRoot(appRoot: string = getAppRoot()): string {
if (path.basename(appRoot) == 'app.asar') {
return path.resolve(path.dirname(appRoot), 'app.asar.unpacked');
}
if (path.dirname(appRoot).endsWith('app.asar')) {
return path.resolve(path.dirname(path.dirname(appRoot)),
'app.asar.unpacked', 'core');
}
return path.resolve(path.dirname(appRoot), path.basename(appRoot, '.asar'));
}
/**
* Return the correct root for a given subdirectory.
*/
export function getAppRootFor(appRoot: string, subdirectory: string): string {
if (['sandbox', 'plugins', 'public-api'].includes(subdirectory)) {
return getUnpackedAppRoot(appRoot);
}
return appRoot;
}
/**
* Return the path to a given subdirectory, from the correct appRoot.
*/
export function getAppPathTo(appRoot: string, subdirectory: string): string {
return path.resolve(getAppRootFor(appRoot, subdirectory), subdirectory);
}