carry previous date string

lib/snippets/copyright/copyright_generator.ts

@@ -9,13 +9,18 @@ import { CopyrightOptions } from './copyright_options';
 
 export class CopyrightGenerator {
   public static get_copyright_notice (
-    opt: CopyrightOptions
+    opt: CopyrightOptions,
+    date_str?: string
   ): string {
     let notice = '';
+    let date_string = date_str;
+    if (typeof date_str === 'undefined') {
       const date = (new Date);
       const dtf = new Intl.DateTimeFormat ('en', { month: 'long' });
       const year = date.getFullYear ();
       const month = dtf.format (date);
+      date_string = `${month} ${year}`;
+    }
 
     if (opt.has_license) {
       notice = `${'/*'}
@@ -23,7 +28,7 @@ export class CopyrightGenerator {
  * This file is part of ${opt.software} which is released under ${
   opt.license}.
  * See file 'LICENSE' for full license details.
- * Created by ${opt.author} <${opt.email}>, ${month} ${year}
+ * Created by ${opt.author} <${opt.email}>, ${date_string}
  */
 
 `;
@@ -31,7 +36,7 @@ export class CopyrightGenerator {
     else {
       notice = `${'/*'}
  * Copyright (C) ${opt.company || opt.author} - All Rights Reserved
- * Created by ${opt.author} <${opt.email}>, ${month} ${year}
+ * Created by ${opt.author} <${opt.email}>, ${date_string}
  */
 
 `;

lib/snippets/copyright/index.ts

@@ -42,9 +42,7 @@ export default class Copyright implements Snippet {
 
     await modify_json ((json) => {
       json.author = `${options.author} <${options.email}>`;
-      json.license = options.has_license
-        ? options.license
-        : 'UNLICENSED';
+      json.license = options.has_license ? options.license : 'UNLICENSED';
       return json;
     });
 
@@ -59,11 +57,14 @@ export default class Copyright implements Snippet {
       );
     }
 
-    if (!this._loaded_from_config && await new Confirm (
+    if (
+      !this._loaded_from_config
+      && (await new Confirm (
         { message: 'should those settings be saved for the next run?' }
       )
         .run ()
         .catch (DialogHandler.catch))
+    )
       this.save_options_file ();
   }
 
@@ -81,10 +82,9 @@ export default class Copyright implements Snippet {
     this._options.software = await new Input ({ message: 'software name' })
       .run ()
       .catch (DialogHandler.catch);
-    this._options.has_license = await new Confirm ({
-      message:
-       'would you like to specify a license?'
-    })
+    this._options.has_license = await new Confirm (
+      { message: 'would you like to specify a license?' }
+    )
       .run ()
       .catch (DialogHandler.catch);
     if (this._options.has_license) {
@@ -104,9 +104,7 @@ export default class Copyright implements Snippet {
     this._options = null;
 
     if (await fs.pathExists (file_path)) {
-      const options = JSON.parse (
-        await fs.readFile (file_path, 'utf-8')
-      );
+      const options = JSON.parse (await fs.readFile (file_path, 'utf-8'));
 
       // eslint-disable-next-line no-console
       console.log (`author: ${options.author}
@@ -135,21 +133,23 @@ license: ${options.license}`);
     );
   }
 
-  private fix_file_license (
-    data: string,
-    filename: string
-  ): string | null {
-    const regex = /\/\*\s+\*\sCopyright[\s\S]*?\*\/\n{0,2}/gu;
+  private fix_file_license (data: string, filename: string): string | null {
+    // eslint-disable-next-line max-len
+    const regex = /\/\*\s+\*\sCopyright[\s\S]*?(?:Created by.*?, (?<date>[a-z]+ [0-9]+)[\s\S]*?|\s)\*\/\n{0,2}/gu;
     const shebang = /^#!.*?\n\n/gu;
     const shebang_line = shebang.exec (data);
 
     if (!(/\.(?:js|ts|mjs)$/u).test (filename) && !regex.test (data))
       return null;
-    return (shebang_line ? shebang_line[0] : '')
+    const res = regex.exec (data);
+    return (
+      (shebang_line ? shebang_line[0] : '')
       + CopyrightGenerator.get_copyright_notice (
-       this._options as CopyrightOptions
+        this._options as CopyrightOptions,
+        res?.groups?.date
       )
       + data.replace (regex, '')
-       .replace (shebang, '');
+        .replace (shebang, '')
+    );
   }
 }