Window sometimes doesn't jump to error unless focused

[augustjanse]

When I type :Dispatch, :Dispatch make is opened in a small split. It prints the output as expected, but then jumps to the top. Only when I focus on this small split does it jump to the properly highlighted error.

Sometimes it does jump to the highlighted error without focusing. The first time I run :Dispatch in a new session, it always does this.

I'm running Vim in the Git Bash window on Windows.

[tpope]

What if you press <C-L> to force a redraw without focusing the window? Does that fix the positioning?

[augustjanse]

Nope, it had no effect. :redraw! didn't do anything either.

(For unrelated reasons, I switched to Vim in MSYS2 before trying, but it's exhibiting the same behavior.)

[tpope]

Try with a slow script and see if that illuminates when and how it fails. Something like:

for i in $(seq 1 20); do
  sleep 1
  echo $i
done

[augustjanse]

Not sure I understand what you want me to do. It printed the output and then jumped to the top as I would expect.

[tpope]

This is the correct behavior. What happens if you take out the sleep?

[augustjanse]

It blinks empty before drawing 1-10 at once (same end result as previous screenshot).

[tpope]

I guess I don't understand what you mean by "doesn't jump to error". What are your definitions of "error" and "jump to"?

[augustjanse]

Sorry, maybe I should have started with a screenshot.

When I run my tests (:Dispatch), I would like the error to be highlighted and scrolled down to in the quickfix window (not the code itself). This happens the first time:

On subsequent runs, however, it scrolls to the top instead:

Only when I focus on the quickfix window, it scrolls down to the highlighted error (identical to the first screenshot).

So, "error" is whatever Vim/Make determines is an error and "jump to" means scrolling down to and showing a line.

[tpope]

Does closing the window with :cclose before running have any effect?

[augustjanse]

No, it still did the second thing.

[symbolix]

I'm having a potentially similar issue:

When I run this:
:Dispatch gcc %:p -o build/%:t:r

I get the errors listed in the QF buffer,

 1 || /home/me/dev/vixrc-project-config/template_dispatch_typeA/src/main.c:20:5: warning: implicit declaration of function ‘my_request’ [-Wimplicit-function-declaration]¬
 2 ||    20 |     my_request(1);¬
 3 ||       |     ^~~~~~~~~~¬
 4 || /home/me/dev/vixrc-project-config/template_dispatch_typeA/src/main.c:22:36: error: expected ‘;’ before ‘sleep’¬
 5 ||    22 |     printf("Processing data ...\n")¬
 6 ||       |                                    ^¬
 7 ||       |                                    ;¬
 8 ||    23 |     sleep(5);¬

But then none of the commands are working :cnext, :cprev etc. I can't jump to the errors based on the error message in the QF buffer.

Upon further inspection using the following command:
:echo getqflist()

I can see that the QF is not constructed in the correct way, no filename or other information is present (line numbers etc.)

[{'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '/home/me/dev/vixrc-project-config/template_dispatch_typeA/src/main.c: In function ‘main’:'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '/home/me/dev/vixrc-project-config/template_dispatch_typeA/src/main.c:20:5: warning: implicit declaration of function ‘my_request’ [-Wimplicit-function-declaration]'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '   20
|     my_request(1);'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '      |     ^~~~~~~~~~'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '/home/me/dev/vixrc-project-config/template_dispatch_typeA/src/main.c:22:36: error: expected ‘;’ before ‘sleep’'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '   22 |     printf("Processing data ...\n")'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '      |                                    ^'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '      |                                    ;'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '   23 |     sleep(5);'}, {'lnum': 0, 'bufnr': 0, 'end_lnum': 0, 'pattern': '', 'valid': 1, 'vcol': 0, 'nr': -1, 'module': '', 'type': 'I', 'end_col': 0, 'col': 0, 'text': '      |     ~~~~~                           '}]