Avoid reading package.json as it may be unavailable in some cases (#95)

#73 Avoid reading package.json as it may be unavailable in some cases

Signed-off-by: Levko Kravets <levko.ne@gmail.com>

Signed-off-by: Levko Kravets <levko.ne@gmail.com>

Author: kravets-levko

.gitignore

@@ -8,3 +8,4 @@ coverage_unit
 *.code-workspace
 dist
 *.DS_Store
+lib/version.ts

bin/update-version.js

@@ -0,0 +1,8 @@
+const fs = require('fs');
+const path = require('path');
+
+const packageJson = require('../package.json');
+
+const outputPath = path.join(__dirname, '../lib/version.ts');
+
+fs.writeFileSync(outputPath, `export default ${JSON.stringify(packageJson.version)}\n`);

lib/utils/buildUserAgentString.ts

@@ -1,14 +1,8 @@
-import fs from 'fs';
-import path from 'path';
 import os from 'os';
+import packageVersion from '../version';
 
 const productName = 'NodejsDatabricksSqlConnector';
 
-function getPackageVersion(): string {
-  const json = JSON.parse(fs.readFileSync(path.join(__dirname, '../../package.json')).toString());
-  return json.version;
-}
-
 function getNodeVersion(): string {
   return `Node.js ${process.versions.node}`;
 }
@@ -19,5 +13,5 @@ function getOperatingSystemVersion(): string {
 
 export default function buildUserAgentString(clientId?: string): string {
   const extra = [clientId, getNodeVersion(), getOperatingSystemVersion()].filter(Boolean);
-  return `${productName}/${getPackageVersion()} (${extra.join('; ')})`;
+  return `${productName}/${packageVersion} (${extra.join('; ')})`;
 }

package.json

@@ -15,7 +15,8 @@
     "prepare": "npm run build",
     "e2e": "nyc --reporter=lcov --report-dir=coverage_e2e mocha --config tests/e2e/.mocharc.js",
     "test": "nyc --reporter=lcov --report-dir=coverage_unit mocha  --config tests/unit/.mocharc.js",
-    "build": "tsc",
+    "update-version": "node bin/update-version.js && prettier --write ./lib/version.ts",
+    "build": "npm run update-version && tsc",
     "watch": "tsc -w",
     "type-check": "tsc --noEmit",
     "prettier": "prettier . --check",