Have to select file twice in zsh

[jebaum]

When invoking fzf with zsh, the first time you select a file and hit enter the selection seems to be ignored, and you have to do it again, then it behaves as expected. Works perfectly in bash.

[junegunn]

Hmm, I can't reproduce the problem. Tested it on zsh 5.0.2 (x86_64-apple-darwin13.0)
FYI, my .zshrc is empty as I don't use zsh.

[jebaum]

Woops, my mistake, it only occurs when using oh-my-zsh. I'm gonna try to figure out exactly what it is, obviously not the fault of your script. Sorry for the false issue

[jebaum]

For the record, this function that's in a file getting sourced is causing the problem:

function title {
if [[ "$DISABLE_AUTO_TITLE" == "true" ]] || [[ "$EMACS" == term ]]; then
return
fi
if [[ "$TERM" == screen* ]]; then
print -Pn "\ek$1:q\e" #set screen hardstatus, usually truncated at 20 chars
elif [[ "$TERM" == xterm* ]] || [[ $TERM == rxvt* ]] || [[ $TERM == ansi ]] || [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
print -Pn "\e]2;$2:q\a" #set window name
print -Pn "\e]1;$1:q\a" #set icon (=tab) name (will override window name on broken terminal)
fi
}

Specifically the print -Pn "\e]2;$2:q\a" line. I have no idea why

[junegunn]

No problem. Please let me know if you find out the cause, maybe I could mention it in the README page. Thanks.

[junegunn]

Oh, thanks. Did you find a workaround? I'll try to look into it, but I'm completely ignorant on zsh or oh-my-zsh.

[junegunn]

Did you use backticks to execute fzf?

I can see the problem you mentioned when I use backticks as follows.

vim `fzf`

However, the following works fine.

vim $(fzf)

[jebaum]

Yep, I was using backticks and it works fine with $(), thanks!
Do you happen to know why? I can't find any documentation on the difference between the two

[junegunn]

Honestly I have no idea at all.
I've never used zsh/oh-my-zsh seriously before and trying with $() instead of backticks was just a lucky guess.
As far as I know, at least on bash, $() and backticks are equivalent except that $() can be nested,
and I don't think it should be any different on zsh.
I guess it's a bug of oh-my-zsh, but I'm not sure if I'm going to look into it since I myself don't use it.

[lbolla]

I was happening to me too, before I removed the preexec hook:

# preexec is called just before any command line is executed
# Note: breaks fzf piping
# function preexec() {
#     title "$1" "%m:%35<...<%~"
# }

No idea why.