add bash-it

dot_bash_it/completion/available/ssh.completion.bash

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+# Bash completion support for ssh.
+
+export COMP_WORDBREAKS=${COMP_WORDBREAKS/\:/}
+
+_sshcomplete() {
+    local CURRENT_PROMPT="${COMP_WORDS[COMP_CWORD]}"
+    if [[ ${CURRENT_PROMPT} == *@*  ]] ; then
+      local OPTIONS="-P ${CURRENT_PROMPT/@*/}@ -- ${CURRENT_PROMPT/*@/}"
+    else
+      local OPTIONS=" -- ${CURRENT_PROMPT}"
+    fi
+
+    # parse all defined hosts from .ssh/config and files included there
+    for fl in "$HOME/.ssh/config" \
+        $(grep "^\s*Include" "$HOME/.ssh/config" |
+            awk '{for (i=2; i<=NF; i++) print $i}' |
+            sed -Ee "s|^([^/~])|$HOME/.ssh/\1|" -e "s|^~/|$HOME/|")
+    do
+        if [ -r "$fl" ]; then
+            COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$(grep -i ^Host "$fl" |grep -v '[*!]' | awk '{for (i=2; i<=NF; i++) print $i}' )" ${OPTIONS}) )
+        fi
+    done
+
+    # parse all hosts found in .ssh/known_hosts
+    if [ -r "$HOME/.ssh/known_hosts" ]; then
+        if grep -v -q -e '^ ssh-rsa' "$HOME/.ssh/known_hosts" ; then
+            COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$( awk '{print $1}' "$HOME/.ssh/known_hosts" | grep -v ^\| | cut -d, -f 1 | sed -e 's/\[//g' | sed -e 's/\]//g' | cut -d: -f1 | grep -v ssh-rsa)" ${OPTIONS}) )
+        fi
+    fi
+
+    # parse hosts defined in /etc/hosts
+    if [ -r /etc/hosts ]; then
+        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$( grep -v '^[[:space:]]*$' /etc/hosts | grep -v '^#' | awk '{for (i=2; i<=NF; i++) print $i}' )" ${OPTIONS}) )
+    fi
+
+    return 0
+}
+
+complete -o default -o nospace -F _sshcomplete ssh scp slogin sftp