zimfw/modules/ssh/init.zsh

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#
# sets up ssh-agent
#
# don't do anything unless we can actually use ssh-agent
if (( ! ${+commands[ssh-agent]} )); then
return 1
fi
# use a sane temp dir; creating 1k ssh-* files in /tmp is crazy
if [[ ${TMPDIR} ]]; then
local ssh_env=${TMPDIR}/ssh-agent.env
local ssh_sock=${TMPDIR}/ssh-agent.sock
else
# create a sane tmp dir at /tmp/username
mkdir -p /tmp/${USER}
local ssh_env=/tmp/${USER}
local ssh_sock=/tmp/${USER}
fi
# start ssh-agent if not already running
if [[ ! -S ${SSH_AUTH_SOCK} ]]; then
# read environment if possible
source ssh_env 2> /dev/null
if ! ps -U ${LOGNAME} -o pid,ucomm | grep -q -- "${SSH_AGENT_PID:--1} ssh-agent"; then
eval "$(ssh-agent | sed '/^echo /d' | tee ${ssh_env})"
fi
fi
# create socket
if [[ -S ${SSH_AUTH_SOCKET} && ${SSH_AUTH_SOCKET} != ${ssh_sock} ]]; then
ln -sf ${SSH_AUTH_SOCKET} ${ssh_sock}
export SSH_AUTH_SOCK=${ssh_sock}
fi
# load ids
if ssh-add -l 2>&1 | grep -q 'no identities'; then
if (( ${#zssh_ids} > 0 )); then
ssh-add "${HOME}/.ssh/${^zssh_ids[@]}" 2> /dev/null
else
ssh-add 2> /dev/null
fi
fi
unset ssh_{sock,env}