When powerline exceeds terminal's width it will disappear

[muttleyxd]

mkdir -p dir1/dir2/dir3/dir4/dir5/dir6/dir7/dir8/dir9/dir10
cd -p dir1/dir2/dir3/dir4/dir5/dir6/dir7/dir8/dir9/dir10
git init
git checkout -b very-long-branch-name-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

After executing these powerline disappears for me, I'm not sure if that's the case in original.

While this example is a little overkill, this also can happen in real use - when using terminator and splitting terminals into half.

I use Fish Shell 2.6.0 on Manjaro Linux

[justjanne]

Which terminal emulator are you using? I can’t replicate this

[muttleyxd]

It's called "terminator"

What I do is just split terminal window in half (split vertical hotkey) and then I go to the repository and it happens

[justjanne]

I tried in terminator, and it’s not an issue there either:

It seems to be an issue of Fish Shell: Prompt changes to ">" when fish thinks it's too long #904

But it seems like we should introduce a solution where we automatically truncate segments when the prompt becomes too long. I’m thinking of adding a switch to define the priority of segments in order, so that it removes segments by priority if it becomes too long.

[muttleyxd]

Okay, thanks for your investigation - that's quite weird behavior of Fish, but I guess it probably will not be fixed considering how old the bug report is (2013).

[justjanne]

Would the suggested option above (removing segments by priority if the result would end up too long) work for you? If yes, I’d implement that.

[justjanne]

@muttleyxd I introduced now the priority system, which should automatically cut down the length of the shell, please try if this works for you.

[muttleyxd]

It seems like Fish overrides this behavior and does not call fish_prompt when terminal is too small. However after splitting few times in terminator Fish complains about terminal not being large enough and it starts working properly (until resize).

Welcome to fish, the friendly interactive shell
<W> fish: Current terminal parameters set terminal size to unreasonable value.
<W> fish: Defaulting terminal size to 80x24.

[justjanne]

I’m not sure if there’s anything else I can do here, but I’m gonna close this issue, and you’ll have to file one with the fish project.