init CLI arguments

package.json

@@ -32,6 +32,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.15",
     "@types/lodash": "^4.14.165",
+    "argparse": "^2.0.1",
     "jest": "^26.6.3",
     "ts-jest": "^26.4.4",
     "ts-loader": "^9.3.1",

src/tsdb-kit/index.ts

@@ -2,14 +2,26 @@ import { queryByConfig, QueryConfig } from '..';
 
 import { DatasourceType, QueryType } from '../connectors';
 
+import { ArgumentParser } from 'argparse';
 import * as _ from 'lodash';
 
+const parser = new ArgumentParser();
 
-// TODO: these `const`s should be CLI arguments
-const PROMETHEUS_URL = 'http://localhost:9090';
-const QUERY = '100-(avg by (instance) (irate(node_cpu_seconds_total{job="nvicta-ai-node-exporter",mode="idle"}[5m])) * 100)';
-const FROM = 1660670020000; // ms
-const TO = 1660670026000; // ms
+// TODO: parse version from package.json
+parser.add_argument('-v', '--version', { action: 'version', version: '0.1.1' });
+parser.add_argument('-u', '--url', { help: 'Datasource URL', required: true });
+parser.add_argument('-q', '--query', { help: 'Query Template', required: true });
+parser.add_argument('-f', '--from', { help: 'From timestamp (ms), e.g. 1660670020000. If not specified, `now-5m` is used' });
+parser.add_argument('-t', '--to', { help: 'To timestamp (ms), e.g. 1660670026000. If not specified, `now` is used' });
+
+const args = parser.parse_args();
+
+const timeNowInMs = new Date().getTime();
+
+const PROMETHEUS_URL = args.url;
+const QUERY = args.query;
+const FROM = args.from || timeNowInMs - 5 * 60 * 1000;
+const TO = args.to || timeNowInMs;
 
 const datasource = {
   type: DatasourceType.PROMETHEUS,

webpack.config.js

@@ -18,7 +18,7 @@ module.exports = {
   module: {
     rules: [
       {
-        test: /.ts?$/,
+        test: /.ts$/,
         loader: 'ts-loader',
         options: {
           configFile: 'bin.tsconfig.json'

yarn.lock

@@ -905,6 +905,11 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argparse@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
+  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
+
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"