Major update: Add Environment variables support

README.md

@@ -73,3 +73,14 @@ The config file is a json file that contains all the information needed to run t
     }
 ]
 ```
+
+You can also use environment variables in the config file. Example:
+
+```json
+[
+    {
+        "title": "Sync Folders",
+        "folders": ["$FOLDER_1", "$FOLDER_2"]
+    }
+]
+```

index.js

@@ -3,10 +3,8 @@
 
 const fs = require("fs");
 const path = require("path");
-const { execSync, spawn, ChildProcess } = require("child_process");
-
-/** @type {string[]} */
-let dirs = [];
+const { spawn } = require("child_process");
+const handleEnvVars = require("./utils/env");
 
 const confFileProvidedPath = process.argv[process.argv.length - 1];
 
@@ -23,7 +21,7 @@ if (confFileProvidedPath === "--version" || confFileProvidedPath === "-v") {
         );
     }
 
-    process.exit();
+    process.exit(6);
 }
 
 console.log("Running Folder Sync ...");
@@ -56,9 +54,6 @@ if (
     process.exit();
 }
 
-// /** @type {ChildProcess[]} */
-// const childProcesses = [];
-
 try {
     const configJSON = fs.existsSync(defaultConfigFilePath)
         ? fs.readFileSync(defaultConfigFilePath, "utf8")
@@ -71,8 +66,10 @@ try {
             "Config JSON could not be resolved. Please check your files."
         );
 
+    const parsedConfigJSON = handleEnvVars({ json: configJSON });
+
     /** @type {TurboSyncConfigArray} */
-    const configArray = JSON.parse(configJSON);
+    const configArray = JSON.parse(parsedConfigJSON);
 
     for (let i = 0; i < configArray.length; i++) {
         const config = configArray[i];
@@ -96,12 +93,7 @@ try {
 }
 
 setInterval(() => {
-    console.log("Turbo Sync Running ...");
+    console.log(
+        `Turbo Sync Running for ${process.uptime().toLocaleString()}s ...`
+    );
 }, 60000);
-
-// process.on("exit", () => {
-//     for (let i = 0; i < childProcesses.length; i++) {
-//         const childProcess = childProcesses[i];
-//         childProcess.kill("SIGTERM");
-//     }
-// });

lib/sync.js

@@ -2,9 +2,7 @@
 
 // @ts-check
 
-const fs = require("fs");
-const path = require("path");
-const { execSync, spawn } = require("child_process");
+const { spawn } = require("child_process");
 const watchFiles = require("./watch/files");
 const watchFolders = require("./watch/folders");
 

lib/watch/files.js

@@ -111,6 +111,14 @@ function sync({ options, filePath, files }) {
         const dstFl = destFiles[j];
         if (typeof dstFl == "string") {
             if (!fs.existsSync(dstFl)) continue;
+
+            if (filePath === dstFl) {
+                console.log(
+                    `You can't sync the same paths. Please check your configuration and resolve duplicate paths`
+                );
+                process.exit(6);
+            }
+
             cmdArray.push(filePath, dstFl);
             const cmd = cmdArray.join(" ");
             execSync(cmd, {
@@ -119,6 +127,13 @@ function sync({ options, filePath, files }) {
         } else if (dstFl.path) {
             if (!dstFl.host && !fs.existsSync(dstFl.path)) continue;
 
+            if (filePath === dstFl.path) {
+                console.log(
+                    `You can't sync the same paths. Please check your configuration and resolve duplicate paths`
+                );
+                process.exit(6);
+            }
+
             if (dstFl.host && dstFl.ssh_key && dstFl.user) {
                 cmdArray.push("-e", `'ssh -i ${dstFl.ssh_key}'`);
                 cmdArray.push(

lib/watch/folders.js

@@ -120,6 +120,14 @@ function sync({ options, dirs, dirPath, init }) {
         const dstDr = dstDirs[j];
         if (typeof dstDr == "string") {
             if (!fs.existsSync(dstDr)) continue;
+
+            if (dirPath === dstDr) {
+                console.log(
+                    `You can't sync the same paths. Please check your configuration and resolve duplicate paths`
+                );
+                process.exit(6);
+            }
+
             cmdArray.push(
                 path.normalize(dirPath) + "/",
                 path.normalize(dstDr) + "/"
@@ -131,6 +139,13 @@ function sync({ options, dirs, dirPath, init }) {
         } else if (dstDr.path) {
             if (!dstDr.host && !fs.existsSync(dstDr.path)) continue;
 
+            if (dirPath === dstDr.path) {
+                console.log(
+                    `You can't sync the same paths. Please check your configuration and resolve duplicate paths`
+                );
+                process.exit(6);
+            }
+
             if (dstDr.host && dstDr.ssh_key && dstDr.user) {
                 cmdArray.push("-e", `'ssh -i ${dstDr.ssh_key}'`);
                 cmdArray.push(

types.js

@@ -53,3 +53,8 @@
  * @property {string} dirPath
  * @property {boolean} [init] - is this an initialization phase?
  */
+
+/**
+ * @typedef {object} HandleEnvVarsFnParams
+ * @property {string} json
+ */

utils/delay.js

@@ -5,11 +5,11 @@
  * @param {number} [time]
  * @returns
  */
-async function delay(time) {
+async function delay(time = 500) {
     return new Promise((resolve) => {
         setTimeout(() => {
             resolve(true);
-        }, time || 500);
+        }, time);
     });
 }
 

utils/env.js

@@ -0,0 +1,52 @@
+// @ts-check
+
+const fs = require("fs");
+const path = require("path");
+
+/**
+ *
+ * @param {HandleEnvVarsFnParams} param0
+ * @returns {string}
+ */
+function handleEnvVars({ json }) {
+    let newJson = json;
+    try {
+        let envVars = { ...process.env };
+        const localEnvFilePath = path.resolve(process.cwd(), "./.env");
+
+        if (fs.existsSync(localEnvFilePath)) {
+            const localEnvText = fs.readFileSync(localEnvFilePath, "utf8");
+            const localEnvKeyPairArray = localEnvText
+                .split("\n")
+                .filter(
+                    (keyPair) =>
+                        keyPair &&
+                        keyPair.match(/.{3,}/) &&
+                        !keyPair.match(/^\#/)
+                )
+                .map((keyPair) => keyPair.trim());
+
+            localEnvKeyPairArray.forEach((keyPair) => {
+                let keyPairArray = keyPair.split("=");
+                const key = keyPairArray.shift();
+                const value = keyPairArray.join("=");
+
+                const newEnvObject = {};
+                newEnvObject[key] = value;
+
+                envVars = { ...envVars, ...newEnvObject };
+            });
+        }
+
+        for (let key in envVars) {
+            newJson = newJson.replaceAll(`$${key}`, String(envVars[key]));
+        }
+    } catch (error) {
+        console.log(`Error replacing Environment variables`, error.message);
+        return json;
+    }
+
+    return newJson;
+}
+
+module.exports = handleEnvVars;