Get fish shell to work with gcloud command line tools? - fish

Question

Has anyone had any luck getting fish shell to work with google's gcloud command line tools? I'm not an expert in Fish script but these are the two files gcloud needs to run (which work fine use Fish's bash mode). Fish doesn't allow you to source bash files from what I understand so these would need to be converted to Fish script?
path.bash
script_link="$( readlink "$BASH_SOURCE" )" || script_link="$BASH_SOURCE"
apparent_sdk_dir="${script_link%/*}"
if [ "$apparent_sdk_dir" == "$script_link" ]; then
apparent_sdk_dir=.
fi
sdk_dir="$( command cd -P "$apparent_sdk_dir" && pwd -P )"
bin_path="$sdk_dir/bin"
export PATH=$bin_path:$PATH
path.completion
_python_argcomplete() {
local IFS=''
COMPREPLY=( $(IFS="$IFS" COMP_LINE="$COMP_LINE" COMP_POINT="$COMP_POINT" _ARGCOMPLETE_COMP_WORDBREAKS="$COMP_WORDBREAKS" _ARGCOMPLETE=1 "$1" 8>&1 9>&2 1>/dev/null 2>/dev/null) )
if [[ $? != 0 ]]; then
unset COMPREPLY
fi
}
complete -o default -F _python_argcomplete "gcloud"
_completer() {
command=$1
name=$2
eval '[[ "$'"${name}"'_COMMANDS" ]] || '"${name}"'_COMMANDS="$('"${command}"')"'
set -- $COMP_LINE
shift
while [[ $1 == -* ]]; do
shift
done
[[ $2 ]] && return
grep -q "${name}\s*$" <<< $COMP_LINE &&
eval 'COMPREPLY=($'"${name}"'_COMMANDS)' &&
return
[[ "$COMP_LINE" == *" " ]] && return
[[ $1 ]] &&
eval 'COMPREPLY=($(echo "$'"${name}"'_COMMANDS" | grep ^'"$1"'))'
}
unset bq_COMMANDS
_bq_completer() {
_completer "CLOUDSDK_COMPONENT_MANAGER_DISABLE_UPDATE_CHECK=1 bq help | grep '^[^ ][^ ]* ' | sed 's/ .*//'" bq
}
unset gsutil_COMMANDS
_gsutil_completer() {
_completer "CLOUDSDK_COMPONENT_MANAGER_DISABLE_UPDATE_CHECK=1 gsutil help | sed /Additional/q | grep '^ ' | sed -e 's/^ //' -e 's/ .*//'" gsutil
}
unset gcutil_COMMANDS
_gcutil_completer() {
_completer "CLOUDSDK_COMPONENT_MANAGER_DISABLE_UPDATE_CHECK=1 gcutil help | grep -v '^information' | grep '^[a-z]' | sed -e 's/ .*//' -e '/^$/d'" gcutil
}
complete -o default -F _bq_completer bq
complete -o default -F _gsutil_completer gsutil
complete -o default -F _gcutil_completer gcutil

Answer 1

What worked for me was just using bass. Check it out:
https://github.com/edc/bass
Just take the lines that gcloud adds to your bash_profile, and prepend bass to them in your .config/fish/config.fish file, as follows:
# The next line updates PATH for the Google Cloud SDK.
bass source '/Users/hunter/bin/google-cloud-sdk/path.bash.inc'
# The next line enables shell command completion for gcloud.
bass source '/Users/hunter/bin/google-cloud-sdk/completion.bash.inc'

Answer 2

As of today, I was able just to do
brew install --cask google-cloud-sdk
Added source /usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/path.fish.inc to my ~/.config/fish/config.fish
Clone https://github.com/aliz-ai/google-cloud-sdk-fish-completion then run install.sh.

Answer 3

For path.bash, all it does is add the Cloud SDK bin directory to your PATH. We put some weird stuff in there because we wanted it to work from inside the Cloud SDK directory even when behind, eg, a symlink. For your own system, just do the fsh equivalent of "export PATH=$PATH:/path/to/google-cloud-sdk/bin".
For the tab completion, I don't know how fsh's tab completion works, so I've got nothing.

Answer 4

Fish support is now included out of the box with gcloud, however I ran into a pretty annoying issue. The code included in google-cloud-sdk/path.fish.inc (and #nafg's answer) leaves the directory changed, resulting in each new shell session starting in the google-cloud-sdk directory.
The modification I made was fairly simple, adding two extra lines to get the current working directory and restore it afterwards. This seems to have resolved the issue for me, so hopefully will help anyone else googling for "fish gcloud" problems.
set restore_dir (pwd -P)
set sdk_dir (builtin cd "$apparent_sdk_dir" > /dev/null; and pwd -P)
set bin_path "$sdk_dir/bin"
cd "$restore_dir"

Answer 5

I was able to set up completion by executing this:
# fisher v3
fisher add aliz-ai/google-cloud-sdk-fish-completion
# fisher v4
fisher install aliz-ai/google-cloud-sdk-fish-completion
Fisher can be found here: https://github.com/jorgebucaran/fisher

Answer 6

using fisher:
fisher install lgathy/google-cloud-sdk-fish-completion
and you are good to go

Answer 7

There's an interesting approach here: http://michelpm.com/blog/2013/07/26/switching-from-zsh-to-fish/
Basically it will run a bash script in bash, but it will diff how it changes the environment and apply that in fish.
However it won't work for completions and for your path.bash it's overkill. More like:
Change var=value to set var value
Change [ ... ] to test ...
Change $( ... ) to ( ... )
if doesn't need then and ends with end
Change || to ; or and && to ; and
Change export to set -x
So without testing here's what I would try:
set script_link ( readlink "$BASH_SOURCE" ); or set script_link $BASH_SOURCE
set apparent_sdk_dir ${script_link%/*}
if test "$apparent_sdk_dir" == "$script_link" ;
set apparent_sdk_dir .
end
set sdk_dir ( command cd -P "$apparent_sdk_dir"; and pwd -P )
set bin_path $sdk_dir/bin
set -x PATH $bin_path:$PATH