raw implementation

.gitignore

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+
+# Created by https://www.gitignore.io/api/osx,node,linux,macos,windows,visualstudiocode
+# Edit at https://www.gitignore.io/?templates=osx,node,linux,macos,windows,visualstudiocode
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# react / gatsby 
+public/
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+### OSX ###
+# General
+
+# Icon must end with two \r
+
+# Thumbnails
+
+# Files that might appear in the root of a volume
+
+# Directories potentially created on remote AFP share
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/osx,node,linux,macos,windows,visualstudiocode

bin/iexec

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+#!/usr/bin/env node
+const program = require('commander');
+const Exec = require('../lib/index');
+
+function myParseInt(value, dummyPrevious) {
+  // parseInt takes a string and an optional radix
+  if (!value) return 1000;
+  return parseInt(value);
+}
+function args(value, previous) {
+  if (!previous) previous === [];
+  return [...previous, value];
+}
+program.version('iexec v0.0.1, Made with  ♥️  by Sagi Dayan');
+
+program.option('-c, --command <command>', 'Command to execute wrapped in', null)
+    .option('-a, --arg [arg]', 'Arguments for the command', args, [])
+    .option(
+        '-i, --interval [milliseconds]', 'Interval milliseconds', myParseInt,
+        1000)
+    .option(
+        '-w, --wait', 'Wait until execution ends before running a new process',
+        false);
+
+program.parse(process.argv);
+console.log(program.args);
+if (!program.command) {
+  console.error('Must provide a command to run. Use -c to pass a command');
+  process.exit(1);
+}
+
+console.log(program.wait);
+
+const _needToWait = program.wait;
+const _command = program.command;
+const _args = program.arg;
+const _interval = program.interval;
+Exec.start(_command, _args, _needToWait, _interval);

lib/index.js

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+const {spawn} = require('child_process');
+
+
+class Exec {
+  static start(command, args, needToWait, interval) {
+    let doneWithOld = true;
+    let numOfExecutions = 0;
+    console.log(`Running command '${command}' | Args: ${
+        JSON.stringify(
+            args)} | interval ${interval}ms | needToWait ${!!needToWait}`);
+    setInterval(() => {
+      if (needToWait && !doneWithOld) return;
+      doneWithOld = false;
+      numOfExecutions++;
+      const execNum = numOfExecutions;
+      console.log(`/******* Staring command #${execNum} ********/`);
+      const exec = spawn(command, args);
+
+      exec.stdout.on('data', (data) => {
+        console.log(`[${execNum}] ${data}`);
+      });
+
+      exec.stderr.on('data', (data) => {
+        console.error(`[${execNum}] ${data}`);
+      });
+
+      exec.on('close', (code) => {
+        console.log(`/******* Ended command #${execNum} ********/`);
+        doneWithOld = true;
+      });
+    }, interval);
+  }
+}
+
+
+module.exports = Exec;

package-lock.json

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+{
+  "name": "iexec",
+  "version": "0.0.1",
+  "lockfileVersion": 1,
+  "author": "Sagi Dayan",
+  "requires": true,
+  "dependencies": {
+    "commander": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-4.0.1.tgz",
+      "integrity": "sha512-IPF4ouhCP+qdlcmCedhxX4xiGBPyigb8v5NeUp+0LyhwLgxMqyp3S0vl7TAPfS/hiP7FC3caI/PB9lTmP8r1NA=="
+    }
+  }
+}

package.json

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+{
+  "name": "iexec",
+  "version": "0.0.1",
+  "description": "Executes a command in intervals until interrupts",
+  "bin": "bin/iexec",
+  "main": "lib/index",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Sagi Dayan",
+  "license": "ISC",
+  "dependencies": {
+    "commander": "^4.0.1"
+  }
+}

yarn.lock

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+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+commander@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-4.0.1.tgz#b67622721785993182e807f4883633e6401ba53c"
+  integrity sha512-IPF4ouhCP+qdlcmCedhxX4xiGBPyigb8v5NeUp+0LyhwLgxMqyp3S0vl7TAPfS/hiP7FC3caI/PB9lTmP8r1NA==