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configuration.ts
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configuration.ts
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import { Uri, workspace, EventEmitter } from 'vscode';
import { globalCtx } from './context';
import { Dispose } from './Disposable';
import { promptPassword } from './promptPassword';
import { UserConfiguration } from './types';
import { getEncryptWorkspace } from './utils';
import micromatch from 'micromatch';
export type Configuration = UserConfiguration;
function defaultConf(): Configuration {
return {
include: ['**/*.md'],
exclude: ['.encrypt.json'],
extension: {
include: [],
exclude: [],
},
};
}
const confFileName = '.encrypt.json';
export async function configurationExist() {
const root = workspace.workspaceFolders?.[0];
if (!root) {
return false;
}
try {
const confUri = Uri.joinPath(root.uri, confFileName);
await workspace.fs.stat(confUri);
return true;
} catch (error) {
return false;
}
}
export async function shouldAutoOpen(): Promise<boolean> {
const root = workspace.workspaceFolders?.[0];
if (!root) {
return false;
}
try {
const confUri = Uri.joinPath(root.uri, confFileName);
const file = await workspace.fs.readFile(confUri);
return !!JSON.parse(file.toString()).autoOpen;
} catch (error) {
return false;
}
}
export class ConfigurationContext extends Dispose {
conf: Configuration = defaultConf();
rules = {
gitignore: [] as string[],
};
#masterKey: Uint8Array = Buffer.alloc(0);
_emitter = new EventEmitter<void>();
onDidConfigChanged = this._emitter.event;
constructor() {
super();
this.watchConfFile();
this.load();
}
async #load(root: Uri): Promise<Configuration> {
try {
const confUri = Uri.joinPath(root, confFileName);
const confFile = await workspace.fs.readFile(confUri);
const conf = defaultConf();
const parsedConf: Partial<UserConfiguration> = JSON.parse(confFile.toString());
const includeRules = (parsedConf.include || []).filter(Boolean);
if (includeRules.length) {
conf.include = includeRules;
}
const excludeRules = (parsedConf.exclude || []).filter(Boolean);
if (excludeRules.length) {
conf.exclude = excludeRules;
}
Object.assign(conf.extension, parsedConf.extension);
return conf;
} catch (error) {
return defaultConf();
}
}
setMasterKey(masterKey = '') {
this.#masterKey = globalCtx.enc.encode(masterKey);
}
async getMasterKey(): Promise<Uint8Array> {
if (!this.#masterKey.length) {
const pwd = await promptPassword();
if (!pwd) throw new Error('Cancel prompt');
this.setMasterKey(pwd);
}
return this.#masterKey;
}
private watchConfFile() {
/**
* todo: when config changed, excluded files should be decrypt.
*/
const watcher = workspace.createFileSystemWatcher(`**/{${confFileName},.gitignore}`);
watcher.onDidChange(() => {
this.load();
});
watcher.onDidDelete(() => {
this.load();
});
watcher.onDidCreate(() => {
this.load();
});
this.disposable.push(watcher);
}
async load(): Promise<void> {
const root = getEncryptWorkspace();
if (!root) {
return;
}
const conf = await this.#load(root.uri);
// simple merge config
Object.assign(this.conf, conf);
const excludes = await loadGitignore(Uri.joinPath(root.uri, '.gitignore'));
this.rules.gitignore = excludes;
this._emitter.fire();
}
async save(): Promise<void> {
const root = getEncryptWorkspace();
if (!root) {
return;
}
const confUri = Uri.joinPath(root.uri, confFileName);
const content = Buffer.from(JSON.stringify(this.conf, null, 2));
await workspace.fs.writeFile(confUri, content);
}
isExclude(file: Uri): boolean {
const root = getEncryptWorkspace();
if (!root) return true;
const baseUrl = root.uri.path + '/';
// relative path
const filePath = file.path.slice(baseUrl.length);
// use extension conf first
if (matchGlob(filePath, this.conf.extension.include)) {
return false;
}
if (matchGlob(filePath, this.conf.extension.exclude)) {
return true;
}
const isInclude = matchGlob(filePath, this.conf.include);
if (!isInclude) {
return true;
}
const isExclude = matchGlob(filePath, [...this.conf.exclude, ...this.rules.gitignore]);
return isExclude;
}
isIgnored(file: Uri): boolean {
const root = getEncryptWorkspace();
if (!root) return true;
const baseUrl = root.uri.path;
const filePath = file.path.slice(baseUrl.length);
const isIgnored = micromatch.isMatch(filePath, this.rules.gitignore, {
cwd: '/',
contains: true,
});
return isIgnored;
}
}
async function loadGitignore(uri: Uri): Promise<string[]> {
try {
const gitignore = await workspace.fs.readFile(uri);
const rules = gitignore
.toString()
.split(/\n+/g)
.map((n) => n.trim())
.filter((n) => Boolean(n) && !n.startsWith('#'));
return rules;
} catch (error) {
return [];
}
}
function matchGlob(path: string, rules: string[]) {
return micromatch.isMatch(path, rules, { contains: true });
}