feat: fetch graphql types script

package.json

@@ -9,6 +9,7 @@
   "scripts": {
     "start": "node scripts/generateTsconfigDev.js && cross-env webpack-dev-server --config=webpack.config.dev.js",
     "generate:polkadot-types": "yarn fetch-definitions && yarn generate:defs && yarn generate:meta && yarn generate:tags",
+    "fetch:harvester-types": "node scripts/fetchHarvesterTypes.js",
     "fetch-definitions": "node scripts/fetchDefinitions.js",
     "generate:defs": "ts-node --skip-project node_modules/.bin/polkadot-types-from-defs --package polymesh-types --input ./src/polkadot",
     "generate:meta": "ts-node --skip-project node_modules/.bin/polkadot-types-from-chain --package polymesh-types --endpoint wss://pmf.polymath.network --output ./src/polkadot --strict",
@@ -52,6 +53,7 @@
     "husky": "^4.1.0",
     "jest": "25.1.0",
     "lint-staged": "^8.1.5",
+    "nodegit": "^0.26.5",
     "prettier": "^1.19.1",
     "prettier-eslint": "^9.0.1",
     "prettier-eslint-cli": "^5.0.0",
@@ -81,7 +83,9 @@
     "@polkadot/util": "2.8.1",
     "@polkadot/util-crypto": "2.8.1",
     "@types/bignumber.js": "^5.0.0",
+    "apollo-boost": "^0.4.9",
     "bignumber.js": "^9.0.0",
+    "graphql": "^15.0.0",
     "json-stable-stringify": "^1.0.1",
     "lodash": "^4.17.15"
   }

scripts/fetchHarvesterTypes.js

@@ -0,0 +1,32 @@
+/* eslint-disable */
+const git = require('nodegit');
+const path = require('path');
+const rimraf = require('rimraf');
+const { exec } = require('child_process');
+
+const BRANCH = process.env.BRANCH;
+const GITHUB_PROYECT = 'git@github.com:PolymathNetwork/tooling-gql.git';
+const TOOLING_FOLDER = 'tooling-gql';
+const OUTPUT_TYPES = path.resolve(__dirname, '../src/polkadot/harvester-types.ts');
+
+const tooling = path.resolve(__dirname, TOOLING_FOLDER);
+rimraf.sync(tooling);
+
+git
+  .Clone(GITHUB_PROYECT, tooling, {
+    fetchOpts: {
+      callbacks: {
+        certificateCheck: () => 1,
+        credentials: function(_, username) {
+          return git.Cred.sshKeyFromAgent(username);
+        },
+      },
+    },
+  })
+  .then(function() {
+    if (BRANCH) {
+      exec(`cd scripts/${TOOLING_FOLDER} && git checkout ${BRANCH}`);
+    }
+    exec(`cp scripts/${TOOLING_FOLDER}/src/generated/graphqlTypes.ts ${OUTPUT_TYPES}`);
+    rimraf.sync(tooling);
+  });