syntax: insert single space before and after line comment #

[j-lakeman]

I'd expect this

#!/usr/bin/env bash

true#test

to be formatted to that

#!/usr/bin/env bash

true # test

to increase readability and to be consistent to other programming languages.

[Rairden]

Yes me too. I look forward to when shfmt adds a space for commented lines.

#!/bin/bash

foo() {
#   echo 1
	#echo 2
	# echo 3
	echo 4
}

foo

true #test

I expect shfmt to turn the echo 1 and echo 2 lines to look like echo 3.
No matter what flags I run with shfmt, the output is something like this:

shfmt -d format-me.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 foo() {
-#   echo 1
+   #   echo 1
    #echo 2
    # echo 3
    echo 4

[mvdan]

shfmt heavily borrows from Go's gofmt, which has never forced a leading space in comments, and I personally think that's fine. Most people will prefer comments leading with one space, but nothing is particularly wrong about comments that don't.

For example, what about comments starting with a tab character, what should we do with them? Or what about empty comments?

[j-lakeman]

Please see this:

https://chat.openai.com/share/2fa42d22-4344-485d-acab-4c9a7847ce95

I know the tool is questionable. In this case however I used it for a quick summary.