arduino-ide/arduino-ide-extension/src/browser/arduino-workspace-resolver.ts
2022-02-11 10:57:44 +01:00

69 lines
2.8 KiB
TypeScript

import { URI } from '@theia/core/shared/vscode-uri';
import { isWindows } from '@theia/core/lib/common/os';
import { notEmpty } from '@theia/core/lib/common/objects';
import { MaybePromise } from '@theia/core/lib/common/types';
/**
* Class for determining the default workspace location from the
* `location.hash`, the historical workspace locations, and recent sketch files.
*
* The following logic is used for determining the default workspace location:
* - `hash` points to an existing location?
* - Yes
* - `validate location`. Is valid sketch location?
* - Yes
* - Done.
* - No
* - `try open recent workspace roots`, then `try open last modified sketches`, finally `create new sketch`.
* - No
* - `try open recent workspace roots`, then `try open last modified sketches`, finally `create new sketch`.
*/
namespace ArduinoWorkspaceRootResolver {
export interface InitOptions {
readonly isValid: (uri: string) => MaybePromise<boolean>;
}
export interface ResolveOptions {
readonly hash?: string;
readonly recentWorkspaces: string[];
// Gathered from the default sketch folder. The default sketch folder is defined by the CLI.
readonly recentSketches: string[];
}
}
export class ArduinoWorkspaceRootResolver {
constructor(protected options: ArduinoWorkspaceRootResolver.InitOptions) {}
async resolve(
options: ArduinoWorkspaceRootResolver.ResolveOptions
): Promise<{ uri: string } | undefined> {
const { hash, recentWorkspaces, recentSketches } = options;
for (const uri of [
this.hashToUri(hash),
...recentWorkspaces,
...recentSketches,
].filter(notEmpty)) {
const valid = await this.isValid(uri);
if (valid) {
return { uri };
}
}
return undefined;
}
protected isValid(uri: string): MaybePromise<boolean> {
return this.options.isValid(uri);
}
// Note: here, the `hash` was defined as new `URI(yourValidFsPath).path` so we have to map it to a valid FS path first.
// This is important for Windows only and a NOOP on POSIX.
// Note: we set the `new URI(myValidUri).path.toString()` as the `hash`. See:
// - https://github.com/eclipse-theia/theia/blob/8196e9dcf9c8de8ea0910efeb5334a974f426966/packages/workspace/src/browser/workspace-service.ts#L143 and
// - https://github.com/eclipse-theia/theia/blob/8196e9dcf9c8de8ea0910efeb5334a974f426966/packages/workspace/src/browser/workspace-service.ts#L423
protected hashToUri(hash: string | undefined): string | undefined {
if (hash && hash.length > 1 && hash.startsWith('#')) {
const path = decodeURI(hash.slice(1)).replace(/\\/g, '/'); // Trim the leading `#`, decode the URI and replace Windows separators
return URI.file(path.slice(isWindows && hash.startsWith('/') ? 1 : 0)).toString();
}
return undefined;
}
}