Don't download the daemon if it is already downloaded

.travis.yml

@@ -33,7 +33,7 @@ script:
   - |
     if [ "$TARGET" == "windows" ]; then
       docker run --rm \
-        --env-file <(env | grep -iE 'DEBUG|NODE_|ELECTRON_|YARN_|NPM_|CI|CIRCLE|TRAVIS|APPVEYOR_|CSC_|GH_|GITHUB_|BT_|AWS_|STRIP|BUILD_') \
+        --env-file <(env | grep -iE 'DEBUG|TARGET|NODE_|ELECTRON_|YARN_|NPM_|CI|CIRCLE|TRAVIS|APPVEYOR_|CSC_|GH_|GITHUB_|BT_|AWS_|STRIP|BUILD_') \
         -v ${PWD}:/project \
         electronuserland/builder:wine \
         /bin/bash -c "yarn --link-duplicates --pure-lockfile && yarn build --win --publish onTag";

build/checkDaemonPlatform.js

@@ -1,29 +0,0 @@
-/* eslint-disable no-console,import/no-extraneous-dependencies,import/no-commonjs */
-
-/**
- * This script is necessary for checking that the daemon that has been downloaded during the
- * yarn installing process is the one for the building target. For example, on Travis the
- * Windows package is built on Linux, thus yarn will download the daemon for Linux instead of
- * Windows. The script will test that and then download the right daemon for the targeted platform.
- */
-const os = require('os');
-const downloadDaemon = require('./downloadDaemon');
-
-module.exports = context => {
-
-  let currentPlatform = os.platform();
-  if (currentPlatform === 'darwin') currentPlatform = 'macoss';
-  if (currentPlatform === 'win32') currentPlatform = 'windows';
-
-  let buildingPlatformTarget = context.platform.toString();
-  if (buildingPlatformTarget === 'mac') buildingPlatformTarget = 'macos';
-
-  if (buildingPlatformTarget !== currentPlatform) {
-    console.log(
-      "\x1b[34minfo\x1b[0m Daemon platform doesn't match target platform. Redownloading the daemon."
-    );
-
-    return downloadDaemon(buildingPlatformTarget);
-  }
-  return Promise.resolve();
-};

build/daemon.ver

@@ -0,0 +1 @@
+0.20.4

build/downloadDaemon.js

@@ -1,6 +1,6 @@
 /* eslint-disable no-console,import/no-extraneous-dependencies,import/no-commonjs */
 const path = require('path');
-const fs = require('fs-path');
+const fs = require('fs');
 const packageJSON = require('../package.json');
 const axios = require('axios');
 const decompress = require('decompress');
@@ -11,20 +11,38 @@ const downloadDaemon = targetPlatform =>
   new Promise((resolve, reject) => {
     const daemonURLTemplate = packageJSON.lbrySettings.lbrynetDaemonUrlTemplate;
     const daemonVersion = packageJSON.lbrySettings.lbrynetDaemonVersion;
-    const daemonDir = packageJSON.lbrySettings.lbrynetDaemonDir;
-    const daemonFileName = packageJSON.lbrySettings.lbrynetDaemonFileName;
+    const daemonDir = path.join(__dirname,'..',packageJSON.lbrySettings.lbrynetDaemonDir);
+    let daemonFileName = packageJSON.lbrySettings.lbrynetDaemonFileName;
 
     let currentPlatform = os.platform();
-    if (currentPlatform === 'darwin') currentPlatform = 'macos';
-    if (currentPlatform === 'win32') currentPlatform = 'windows';
-
-    const daemonPlatform = targetPlatform || currentPlatform;
 
+    var daemonPlatform = process.env.TARGET || targetPlatform || currentPlatform;
+    if (daemonPlatform === 'mac' || daemonPlatform === 'darwin') daemonPlatform = 'macos';
+    if (daemonPlatform === 'win32' || daemonPlatform === 'windows') {
+     daemonPlatform = 'windows';
+     daemonFileName = daemonFileName + '.exe';
+    }
+    const daemonFilePath = path.join(daemonDir, daemonFileName);
+    const daemonVersionPath = path.join(__dirname, 'daemon.ver');
+    const tmpZipPath = path.join(__dirname, '..', 'dist', 'daemon.zip');
     const daemonURL = daemonURLTemplate
       .replace(/DAEMONVER/g, daemonVersion)
       .replace(/OSNAME/g, daemonPlatform);
-    const tmpZipPath = 'dist/daemon.zip';
+   console.log(daemonURL);
 
+    // If a daemon and daemon.ver exists, check to see if it matches the current daemon version
+    const hasDaemonDownloaded = fs.existsSync(daemonFilePath);
+    const hasDaemonVersion = fs.existsSync(daemonVersionPath);
+    let downloadedDaemonVersion;
+    if (hasDaemonVersion) {
+      downloadedDaemonVersion = fs.readFileSync(daemonVersionPath, "utf8");
+    }
+
+    if (hasDaemonDownloaded && hasDaemonVersion && downloadedDaemonVersion === daemonVersion) {
+      console.log('\x1b[34minfo\x1b[0m Daemon already downloaded');
+      resolve('Done');
+      return;
+    } else {
       console.log('\x1b[34minfo\x1b[0m Downloading daemon...');
       axios
         .request({
@@ -38,29 +56,40 @@ const downloadDaemon = targetPlatform =>
         .then(
           result =>
             new Promise((newResolve, newReject) => {
+              const distPath = path.join(__dirname, '..', 'dist');
+              const hasDistFolder = fs.existsSync(distPath);
+
+              if (!hasDistFolder) {
+                fs.mkdirSync(distPath);
+              }
+
               fs.writeFile(tmpZipPath, result.data, error => {
                 if (error) return newReject(error);
                 return newResolve();
               });
           })
         )
-      .then(() => del(`${daemonDir}/${daemonFileName}*`))
-      .then(() =>
-        decompress(tmpZipPath, daemonDir, {
+        .then(() => del(`${daemonFilePath}*`))
+        .then(() => decompress(tmpZipPath, daemonDir, {
           filter: file =>
-            path.basename(file.path).replace(path.extname(file.path), '') === daemonFileName,
-        })
-      )
+            path.basename(file.path) === daemonFileName,
+        }))
         .then(() => {
           console.log('\x1b[32msuccess\x1b[0m Daemon downloaded!');
-        resolve(true);
+          if (hasDaemonVersion) {
+            del(daemonVersionPath);
+          }
+
+          fs.writeFileSync(daemonVersionPath, daemonVersion, "utf8")
+          resolve('Done');
         })
         .catch(error => {
           console.error(
             `\x1b[31merror\x1b[0m Daemon download failed due to: \x1b[35m${error}\x1b[0m`
           );
           reject(error);
-      });
+        })
+      };
   });
 
 module.exports = downloadDaemon;

electron-builder.json

@@ -73,6 +73,5 @@
       }
     ]
   },
-  "artifactName": "${productName}_${version}.${ext}",
-  "beforeBuild": "./build/checkDaemonPlatform.js"
+  "artifactName": "${productName}_${version}.${ext}"
 }

package.json

@@ -31,7 +31,7 @@
     "release": "yarn compile && electron-builder build",
     "precommit": "lint-staged",
     "preinstall": "yarn cache clean lbry-redux",
-    "postinstall": "electron-builder install-app-deps & node build/downloadDaemon.js"
+    "postinstall": "electron-builder install-app-deps && node build/downloadDaemon.js"
   },
   "dependencies": {
     "bluebird": "^3.5.1",