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Merge pull request #404 from gwjo/ssh-agent

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ssh-agent improvements
This commit is contained in:
Robby Russell 2011-07-17 22:03:39 -07:00
commit bce9c3bb16
1 changed files with 52 additions and 13 deletions
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65
plugins/ssh-agent/ssh-agent.plugin.zsh
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@ -1,23 +1,62 @@
# Based on code from Joseph M. Reagle
# http://www.cygwin.com/ml/cygwin/2001-06/msg00537.html
#
# INSTRUCTIONS
#
# To enabled agent forwarding support add the following to
# your .zshrc file:
#
# zstyle :omz:plugins:ssh-agent agent-forwarding on
#
# To load multiple identies use the identities style, For
# example:
#
# zstyle :omz:plugins:ssh-agent id_rsa id_rsa2 id_github
#
#
# CREDITS
#
# Based on code from Joseph M. Reagle
# http://www.cygwin.com/ml/cygwin/2001-06/msg00537.html
#
# Agent forwarding support based on ideas from
# Florent Thoumie and Jonas Pfenniger
#
local SSH_ENV=$HOME/.ssh/environment-$HOST
local _plugin__ssh_env=$HOME/.ssh/environment-$HOST
local _plugin__forwarding
function start_agent {
/usr/bin/env ssh-agent | sed 's/^echo/#echo/' > ${SSH_ENV}
chmod 600 ${SSH_ENV}
. ${SSH_ENV} > /dev/null
/usr/bin/ssh-add;
function _plugin__start_agent()
{
local -a identities
# start ssh-agent and setup environment
/usr/bin/env ssh-agent | sed 's/^echo/#echo/' > ${_plugin__ssh_env}
chmod 600 ${_plugin__ssh_env}
. ${_plugin__ssh_env} > /dev/null
# load identies
zstyle -a :omz:plugins:ssh-agent identities identities
echo starting...
/usr/bin/ssh-add $HOME/.ssh/${^identities}
}
# Source SSH settings, if applicable
# test if agent-forwarding is enabled
zstyle -b :omz:plugins:ssh-agent agent-forwarding _plugin__forwarding
if [[ ${_plugin__forwarding} == "yes" && -n "$SSH_AUTH_SOCK" ]]; then
# Add a nifty symlink for screen/tmux if agent forwarding
[[ -L $SSH_AUTH_SOCK ]] || ln -sf "$SSH_AUTH_SOCK" /tmp/ssh-agent-$USER-screen
if [ -f "${SSH_ENV}" ]; then
. ${SSH_ENV} > /dev/null
elif [ -f "${_plugin__ssh_env}" ]; then
# Source SSH settings, if applicable
. ${_plugin__ssh_env} > /dev/null
ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
start_agent;
_plugin__start_agent;
}
else
start_agent;
_plugin__start_agent;
fi
# tidy up after ourselves
unfunction _plugin__start_agent
unset _plugin__forwarding
unset _plugin__ssh_env