Initial commit

LICENSE

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+MIT License
+
+Copyright (c) 2018 Dan Steren
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Graphcool Account Manager
+
+## Installation
+
+```bash
+npm install -g gam
+```
+
+## Usage
+
+```
+  ls                        List available graphcool accounts
+  add <account-alias>       Save the current graphcool account to gam
+  rm <account-alias>        Remove account from gam
+  use <account-alias>       Switch to a different graphcool account
+  help                      Show this message
+  -v, --version             Print out the installed version of gam
+```
+
+## Examples
+
+List available graphcool accounts:
+
+```bash
+gam ls
+```
+
+Save the current graphcool account to gam:
+
+```bash
+gam add account1
+```
+
+Switch to a different graphcool account:
+
+```bash
+gam use account1
+```
+
+## Uninstallation
+
+Gam stores accounts in `~/.gam`. To uninstall gam just delete this directory and run `npm uninstall -g gam`.

gam.js

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+#! /usr/bin/env node
+const fs = require('fs');
+const path = require('path');
+
+const homeDir = process.env['HOME'];
+const gamDir = path.join(homeDir, '.gam');
+const graphcoolRCFile = path.join(homeDir, '.graphcoolrc');
+
+if (!fs.existsSync(gamDir)){
+  console.log('Initializing...');
+  fs.mkdirSync(gamDir);
+}
+
+switch (process.argv[2]) {
+  case "-v":
+  case "--version":
+    console.log('0.1.0');
+    break;
+  case "ls":
+  case "list":
+    listAccounts();
+    break;
+  case "add":
+    addAccount(process.argv[3]);
+    break;
+  case "rm":
+  case "remove":
+    removeAccount(process.argv[3]);
+    break;
+  case "use":
+    useAccount(process.argv[3]);
+    break;
+  default:
+    printUsage();
+}
+
+function listAccounts() {
+  const graphcoolFileExists = fs.existsSync(graphcoolRCFile);
+  const graphcoolFile =  graphcoolFileExists ? fs.readFileSync(graphcoolRCFile) : undefined;
+  fs.readdir(gamDir, (error, items) => {
+    if(error) {
+      return printError('Unexpected I/O error, try again.');
+    }
+    if(items.length === 0) {
+      printError('No accounts found.','Try adding one with `$ gcam add <account-name>`');
+    }
+    items.forEach((item) => {
+      const accountFile = fs.readFileSync(path.join(gamDir, item));
+      if(graphcoolFileExists && accountFile.equals(graphcoolFile)) {
+        printGreen('->       ' + item);
+      } else {
+        console.log('         ' + item);
+      }
+    });
+  })
+}
+
+function addAccount(accountAlias) {
+  if (!fs.existsSync(graphcoolRCFile)){
+    return printError('Unable to detect a graphcool account.','Verify that one exists with `$ graphcool account`');
+  }
+  if (!accountAlias) {
+    return printError('No account name provided.', 'Usage: gam add <account-alias>')
+  }
+  if(fs.existsSync(path.join(gamDir, accountAlias))) {
+    return printError('Account already exists!');
+  }
+  var accounts = fs.readdirSync(gamDir);
+  const graphcoolFile = fs.readFileSync(graphcoolRCFile);
+  accounts.forEach((file => {
+    const accountFile = fs.readFileSync(path.join(gamDir, file));
+    if(graphcoolFile.equals(accountFile)) {
+      printError('Current account is already saved as "' + file + '".', 'Run `$ gam use '+ file + '`');
+      process.exit();
+    }
+  }))
+  fs.createReadStream(graphcoolRCFile).pipe(fs.createWriteStream(path.join(gamDir, accountAlias)));
+  console.log('Current graphcool account saved as ' + accountAlias + '.');
+}
+
+function removeAccount(accountAlias) {
+  if (!accountAlias) {
+    return printError('No account name provided.', 'Usage: gam rm <account-alias>')
+  }
+  const aliasFile = path.join(gamDir, accountAlias);
+  if (!fs.existsSync(aliasFile)){
+    return printError('Account "' + accountAlias + '" doesn\'t exist.', 'Use `$ gam ls` to list available accounts.');
+  }
+  fs.unlinkSync(aliasFile);
+  console.log('Account "' + accountAlias + '" removed.');
+}
+
+function useAccount(accountAlias) {
+  if (!accountAlias) {
+    return printError('No account name provided.', 'Usage: gam use <account-alias>')
+  }
+  const aliasFile = path.join(gamDir, accountAlias);
+  if (!fs.existsSync(aliasFile)){
+    return printError('Account "' + accountAlias + '" doesn\'t exist.', 'Use `$ gam ls` to list available accounts.');
+  }
+  fs.createReadStream(aliasFile).pipe(fs.createWriteStream(graphcoolRCFile));
+  console.log('Now using "' + accountAlias + '".');
+}
+
+function printUsage() {
+  console.log(`
+Graphcool Account Manager
+
+Usage: gam COMMAND
+
+COMMANDS:
+  ls                        List available graphcool accounts
+  add <account-alias>       Save the current graphcool account to gam
+  rm <account-alias>        Remove account from gam
+  use <account-alias>       Switch to a different graphcool account
+  help                      Show this message
+  -v, --version             Print out the installed version of gam
+
+Examples:
+
+- List available graphcool accounts
+  $ gam ls
+
+- Save the current graphcool account to gam
+  $ gam add account1
+
+- Switch to a different graphcool account
+  $ gam use account1
+  `);
+}
+
+function printGreen(text){
+  console.log('\x1b[32m%s\x1b[0m', text);
+}
+
+function printError(error, suggestion){
+  console.log('\x1b[31m' + error + '\x1b[0m' + (suggestion ? '\n' + suggestion : '') +'\n');
+}

package.json

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+{
+  "name": "gam",
+  "version": "0.1.0",
+  "description": "Graphcool Account Manager",
+  "bin": {
+    "gam": "./gam.js"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "graphcool"
+  ],
+  "repository": "github:dansteren/gam",
+  "author": "Dan Steren <daniel.d.steren@gmail.com> (http://github.com/dansteren)",
+  "license": "MIT"
+}