Bug 1687861

Can I do anything to help investigate this?

Bump

Honza, could you please run the following command and attach strace.txt ?

$ strace -e trace=%file -o strace.txt bash -l

Created attachment 1592613 [details]
strace -e trace=%file -o strace.txt bash -l

Please try the following:

1. run `set -x` in your interactive bash session
2. try to autocomplete a git command
3. attach the text printed to your terminal

Created attachment 1592647 [details]
git stat<TAB> with set -x

Not sure of the relevance, but I noticed in the output:

++++ git help -a
++++ egrep --color=auto '^  [a-zA-Z0-9]'

Doing
$ git help -a | egrep --color=auto '^  [a-zA-Z0-9]'

returns nothing, because the commands have 3 spaces at the beginning of the line:
$ git help -a
See 'git help <command>' to read about a specific subcommand

Main Porcelain Commands
   add                  Add file contents to the index
   am                   Apply a series of patches from a mailbox
[...]

Created attachment 1592672 [details]
git stat<TAB> with set -x and sourced git completions

I tried it also with doing the source of  /usr/share/bash-completion/completions/git file, the output looks quite different.

Please paste output of the following commands executed in a fresh bash session:

$ complete | grep git\$

$ complete | grep D\$

$ declare -f _completion_loader

$ complete | grep git\$
complete -o bashdefault -o default -o nospace -F _git git

$ complete | grep D\$
complete -F _completion_loader -D

$ declare -f _completion_loader
_completion_loader () 
{ 
    local cmd="${1:-_EmptycmD_}";
    __load_completion "$cmd" && return 124;
    complete -F _minimal -- "$cmd" && return 124
}

(In reply to Honza Brázdil from comment #9)
> $ complete | grep git\$
> complete -o bashdefault -o default -o nospace -F _git git

Something in your configuration sets a completion hook for git that does not work.  If you get rid of it, _completion_loader() will load the hook provided by git-core, which works fine.

You can try to find culprit like this:

$ grep -r 'complete.*git' /etc/{bash_completion,profile}.d

If there is no match, look at the other sourced files, based on attachment #1592613 [details].

Thanks, it was because of third-party branch_in_prompt.sh script. Weird that it worked before but the script was not updated in a long time so it's probably outdated by now.

Removing that script fixed it.

Glad to see it resolved.  Thank you for clarifying it!