Tools: Moved lib-specific tests under lib package

packages/lib/utils/credentialFiles.ts

@@ -0,0 +1,31 @@
+const fs = require('fs-extra');
+
+export async function credentialDir() {
+	const username = require('os').userInfo().username;
+
+	const toTry = [
+		`c:/Users/${username}/joplin-credentials`,
+		`/mnt/c/Users/${username}/joplin-credentials`,
+		`/home/${username}/joplin-credentials`,
+		`/Users/${username}/joplin-credentials`,
+	];
+
+	for (const dirPath of toTry) {
+		if (await fs.pathExists(dirPath)) return dirPath;
+	}
+
+	throw new Error(`Could not find credential directory in any of these paths: ${JSON.stringify(toTry)}`);
+}
+
+export async function credentialFile(filename: string) {
+	const rootDir = await credentialDir();
+	const output = `${rootDir}/${filename}`;
+	if (!(await fs.pathExists(output))) throw new Error(`No such file: ${output}`);
+	return output;
+}
+
+export async function readCredentialFile(filename: string) {
+	const filePath = await credentialFile(filename);
+	const r = await fs.readFile(filePath);
+	return r.toString();
+}