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Basic context-aware completion for ssh command (#3424)

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Co-authored-by: Junegunn Choi <junegunn.c@gmail.com>
This commit is contained in:
Timofei Bredov
2023-09-17 18:15:04 +03:00
committed by GitHub
parent 3982c9a552
commit edfdcc8cee
3 changed files with 81 additions and 19 deletions
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37
shell/completion.bash
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@@ -280,13 +280,33 @@ _fzf_proc_completion_post() {
awk '{print $2}'
}
__fzf_list_hosts() {
command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]') \
<(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
<(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
awk -v "user=$1" '{if (length($2) > 0) {print user $2}}' | sort -u
}
_fzf_host_completion() {
_fzf_complete +m -- "$@" < <(
command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]') \
<(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
<(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
awk '{if (length($2) > 0) {print $2}}' | sort -u
)
_fzf_complete +m -- "$@" < <(__fzf_list_hosts "")
}
# Values for $1 $2 $3 are described here
# https://www.gnu.org/software/bash/manual/html_node/Programmable-Completion.html
# > the first argument ($1) is the name of the command whose arguments are being completed,
# > the second argument ($2) is the word being completed,
# > and the third argument ($3) is the word preceding the word being completed on the current command line.
_fzf_complete_ssh() {
case $3 in
-i|-F|-E)
_fzf_path_completion "$@"
;;
*)
local user=
[[ "$2" =~ '@' ]] && user="${2%%@*}@"
_fzf_complete +m -- "$@" < <(__fzf_list_hosts "$user")
;;
esac
}
_fzf_var_completion() {
@@ -351,6 +371,9 @@ for cmd in $d_cmds; do
__fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
done
# ssh
__fzf_defc ssh _fzf_complete_ssh "-o default -o bashdefault"
unset cmd d_cmds a_cmds
_fzf_setup_completion() {
@@ -376,7 +399,7 @@ _fzf_setup_completion() {
# Environment variables / Aliases / Hosts / Process
_fzf_setup_completion 'var' export unset printenv
_fzf_setup_completion 'alias' unalias
_fzf_setup_completion 'host' ssh telnet
_fzf_setup_completion 'host' telnet
_fzf_setup_completion 'proc' kill
fi