feat: Use new Codecov uploader

src/index.ts

@@ -1,17 +1,69 @@
-const core = require('@actions/core');
-const exec = require('@actions/exec');
+import * as fs from 'fs';
+import * as https from 'https';
+import * as path from 'path';
+
+import * as exec from '@actions/exec';
 
 import buildExec from './buildExec';
+import {
+  BASEURL,
+  getPlatform,
+  getUploaderName,
+  isValidPlatform,
+  setFailure,
+} from './helpers';
 
-const {execArgs, options, failCi} = buildExec();
+import verify from './validate';
 
-exec.exec('bash', execArgs, options)
-    .catch((err) => {
-      if (failCi) {
-        core.setFailed(
-            `Codecov failed with the following error: ${err.message}`,
-        );
-      } else {
-        core.warning(`Codecov warning: ${err.message}`);
-      }
-    });
+let failCi;
+
+try {
+  const {execArgs, options, failCi} = buildExec();
+  const platform = getPlatform();
+  if (!isValidPlatform()) {
+    setFailure(
+        `Codecov: Encountered an unexpected platform: ${platform}`,
+        failCi,
+    );
+  }
+  const filename = path.join( __dirname, getUploaderName());
+  https.get(BASEURL, (res) => {
+    // Image will be stored at this path
+    const filePath = fs.createWriteStream(filename);
+    res.pipe(filePath);
+    filePath
+        .on('error', (err) => {
+          setFailure(
+              `Codecov: Failed to write uploader binary: ${err.message}`,
+              true,
+          );
+        }).on('finish', async () => {
+          filePath.close();
+
+          await verify(filename);
+          await fs.chmodSync(filename, '777');
+
+          const unlink = () => {
+            fs.unlink(filename, (err) => {
+              if (err) {
+                setFailure(
+                    `Codecov: Could not unlink uploader: ${err.message}`,
+                    failCi,
+                );
+              }
+            });
+          };
+          await exec.exec(filename, execArgs, options)
+              .catch((err) => {
+                setFailure(
+                    `Codecov: Failed to properly upload: ${err.message}`,
+                    failCi,
+                );
+              }).then(() => {
+                unlink();
+              });
+        });
+  });
+} catch (err) {
+  setFailure(`Codecov: Encountered an unexpected error ${err.message}`, failCi);
+}