feat: Handle multiple Eask-files for init command

CHANGELOG.md

@@ -23,6 +23,7 @@ Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how
 * Adapt `-a`/`--all` option for archives command (#83)
 * Merge command `list-all` to list with `-a`/`--all` option (#84)
 * Support JSON format with Eask-file linter (#85)
+* Handle multiple Eask-files for `init` command (#86)
 
 ## 0.7.x
 > Released Sep 08, 2022

cmds/core/init.js

@@ -23,8 +23,6 @@ const path = require('path');
 const fs = require('fs');
 const readline = require('readline');
 
-var EASK_FILE;
-
 var instance;  /* `readline` instance */
 
 exports.command = ['init'];
@@ -41,13 +39,53 @@ async function create_eask_file(dir) {
     output: process.stdout
   });
 
-  EASK_FILE = path.join(process.cwd(), '/Eask');
-
-  if (fs.existsSync(EASK_FILE) || fs.existsSync(EASK_FILE + 'file')) {
-    console.log('Eask-file is already exists');
-    process.exit(0);
+  let new_name = path.join(process.cwd(), 'Eask');
+
+  // Search for existing Eask-files!
+  let files = fs.readdirSync(process.cwd()).filter(fn => fn.match('Eask'));
+  let contine_op = false;
+
+  if (files.length != 0) {
+    // Print out all existing Eask-files, and ask for continuation!
+    console.log('Eask-file is already exists,');
+    console.log('');
+    for (let index in files) {
+      console.log('   ' + path.join(process.cwd(), files[index]));
+    }
+    console.log('');
+    await ask(`Continue the initialization? (yes) `, (answer) => { contine_op = answer; });
+
+    // Abort if declined!
+    if (contine_op != '' && contine_op != 'yes') {
+      process.exit(0);
+    }
+
+    // Ask for new name unitl the filename is available!
+    let new_basename = path.basename(new_name);
+    let invalid_name = false;
+
+    // Ask for new name until we found one that meets our requirements!
+    while (fs.existsSync(new_name) || invalid_name) {
+      let prompt;
+
+      // Handle invalid file name!
+      if (invalid_name) {
+        prompt = `[?] File name '${new_basename}' is invalid (should start with 'Eask'), `;
+      } else {
+        prompt = `[?] File name '${new_basename}' already taken, `;
+      }
+
+      // Ask for new name!
+      await ask(prompt + `try another one: `,
+                (answer) => {
+                  new_name = path.join(process.cwd(), answer);
+                  new_basename = answer;
+                  invalid_name = !answer.startsWith('Eask');
+                });
+    }
   }
 
+  // Starting writing Eask-file!
   let name, version, description, entry_point, emacs_version, website_url, keywords;
   await ask(`package name: (${basename}) `, (answer) => { name = answer || basename; });
   await ask(`version: (1.0.0) `, (answer) => { version = answer || '1.0.0'; });
@@ -75,14 +113,14 @@ async function create_eask_file(dir) {
 (depends-on "emacs" "${emacs_version}")
 `;
 
-  await ask(`About to write to ${EASK_FILE}:
+  await ask(`About to write to ${new_name}:
 
 ${content}
 
 Is this OK? (yes) `,
             (answer) => {
               if (answer == '' || answer == 'yes') {
-                fs.writeFile(EASK_FILE, content, (err) => { if (err) console.log(err); });
+                fs.writeFile(new_name, content, (err) => { if (err) console.log(err); });
               }
             });
   instance.close();