E.g., passing an empty group name to the sign argument linehl (e.g.,
"linehl=") causes the following error:
```
Error detected while processing /usr/home/0mp/.vim/plugged/vim-gitgutter/plugin/gitgutter.vim[96]..function gitgutter#highlight#define_signs[10]..<SNR>56_define_sign_line_highlights:
line 9:
E1249: Group name missing for linehl
```
This patch makes the those errors go away by passing "None" when no
group name is needed.
This only applies to floating preview windows on Neovim.
Handles the following way of closing the floating preview:
- <Esc>
- Moving cursor
- 2<C-W>c (where 2 is the floating window's window number)
- <C-W><C-W> to move into and out of the floating window
Closes#786.
This bug was introduced by 9784226 in #708. It had the effect of not
allowing an existing hunk preview window to increase in size for a
larger hunk (up to 'previewheight').
See #775.
I would prefer to remove the statusline altogether in the hunk preview
window, making it consistent with the floating preview window. However
I do not think that is possible; the best one can do is make it blank.
In da77e46310 the function changed to be
consistent with GitGutterGetHunks(), i.e. to show "no data" if called in
a buffer for which gitgutter is inactive.
This function is mostly used in status lines. GitGutter is inactive
when a popup window is open. The commit mentioned above meant that when
a completion window was open, the hunk summary in the status line
changed to show no data. It changed back again once the completion
window was closed, but the overall effect was a little distracting.
This commit reverts the change.
Closes#771.
Vim does not check the existence of its temp directory when generating
file names with tempname(). Therefore if, for some reason, the temp
directory gets deleted, Vim will continue to generate paths for file
names inside the directory. Writes to these file paths will fail
(E482).
See #746, #433, #190, #147.
