After each Autofix a new blank line is added after the file header

[k-eb]

If a file has a file header, say for the year 2018, and if I then change the template to 2019 and run autofix, the file header will be correctly replaced, but also adds a blank line after the file header. It does that for every autofix. So over the years, blank lines will pile up.
Is that a known issue?

Example:

/* ***
 * Copyright 2018
*** */
console.log("hello");

When now the template is changed to use 2019, after auto-fix the file will look like this:

/* ***
 * Copyright 2019
*** */

console.log("hello");

Again, when the template is changed again to say 2020, the file will be auto-fixed to:

/* ***
 * Copyright 2020
*** */


console.log("hello");

[Stuk]

That sounds like a bug! Do you have the lineEndings option set, and/or are you alternating between Windows and Linux/Mac? I can see how this behaviour might happen in those cases.

Unfortunately I don't have much spare time to investigate at the moment. If you have some time to look into the issue, the responsible code might be this: https://github.com/Stuk/eslint-plugin-header/blob/master/lib/rules/header.js#L31-L46

Or, if you don't feel comfortable doing that, then adding a failing test to the bottom of https://github.com/Stuk/eslint-plugin-header/blob/master/tests/lib/rules/header.js#L203-L214 and creating a PR would be very much appreciated!

[k-eb]

I am seeing that on Windows, without switching between OSes. I see the issue with both defining the header in a separate file and inline.

Right now, I don't have time to look into that either, but maybe will in a couple of weeks.

[barberdt]

Funny enough, I'm actually trying to find a way to enforce a blank line between my header comment and the rest of the file. However, adding a \n to the end of my header file causes a bank, commented line to be added instead of just a plain blank line.

Example config:

// My first copyright line.
// My second copyright line.
\n

Expample output (undesired):

// My first copyright line.
// My second copyright line.
//
console.log('First line of code')

Desired output:

// My first copyright line.
// My second copyright line.

console.log('First line of code')

Am I maybe missing something in the docs? Thanks!

[joekukish]

I would like to do the same, but the comment parser enforces this, instead of checking the blank spaces at the end of each file

[memao]

I am also trying to do the same - add a blank line after the header. The lineEndings option doesn't work for me.

[alejandroclaro]

Same here. I would like to enforce a blank line after the header, or the contrary in every file.

[tonyganchev]

Issue should be fixed in my forked version - https://github.com/tonyganchev/eslint-plugin-header/ - check version 3.1.6 and later.