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-rw-r--r--plugins/ssh-agent/README.md12
-rw-r--r--plugins/ssh-agent/ssh-agent.plugin.zsh29
2 files changed, 31 insertions, 10 deletions
diff --git a/plugins/ssh-agent/README.md b/plugins/ssh-agent/README.md
index 8765a9c7e..aa96f9cc9 100644
--- a/plugins/ssh-agent/README.md
+++ b/plugins/ssh-agent/README.md
@@ -19,9 +19,17 @@ To enable **agent forwarding support** add the following to your zshrc file:
zstyle :omz:plugins:ssh-agent agent-forwarding on
```
-----
+To **NOT load any identities on start** use the `lazy` style.
+This is particularly usefull when combined with the AddKeysToAgent
+(available from OpenSSH 7.2), since it allows to enter the password only
+on first use.
+
+```zsh
+zstyle :omz:plugins:ssh-agent lazy yes
+```
-To **load multiple identities** use the `identities` style, For example:
+To **load multiple identities** use the `identities` style. This have no
+effect if `lazy` is enabled.
```zsh
zstyle :omz:plugins:ssh-agent identities id_rsa id_rsa2 id_github
diff --git a/plugins/ssh-agent/ssh-agent.plugin.zsh b/plugins/ssh-agent/ssh-agent.plugin.zsh
index d45406f63..494cf1393 100644
--- a/plugins/ssh-agent/ssh-agent.plugin.zsh
+++ b/plugins/ssh-agent/ssh-agent.plugin.zsh
@@ -1,4 +1,16 @@
-typeset _agent_forwarding _ssh_env_cache
+lockdir=/tmp/oh-my-zsh-ssh-agent.lock
+
+while true; do
+ if mkdir "$lockdir" 2>/dev/null
+ then # directory did not exist, but was created successfully
+ trap 'rm -rf "$lockdir"' 0 # remove directory when script finishes
+ break # continue with script
+ else
+ sleep 0.1 # sleep for 0.2 and try again
+ fi
+done
+
+typeset _ssh_env_cache
function _start_agent() {
local lifetime
@@ -56,10 +68,7 @@ function _add_identities() {
# Get the filename to store/lookup the environment from
_ssh_env_cache="$HOME/.ssh/environment-$SHORT_HOST"
-# test if agent-forwarding is enabled
-zstyle -b :omz:plugins:ssh-agent agent-forwarding _agent_forwarding
-
-if [[ $_agent_forwarding == "yes" && -n "$SSH_AUTH_SOCK" ]]; then
+if zstyle -t :omz:plugins:ssh-agent agent-forwarding && [[ -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-$USERNAME-screen
elif [[ -f "$_ssh_env_cache" ]]; then
@@ -73,12 +82,16 @@ elif [[ -f "$_ssh_env_cache" ]]; then
ps $FILTER | grep ssh-agent | grep -q $SSH_AGENT_PID || {
_start_agent
}
-else
+elif [[ -d $HOME/.ssh ]]; then
_start_agent
fi
-_add_identities
+if ! zstyle -t :omz:plugins:ssh-agent lazy; then
+ _add_identities
+fi
# tidy up after ourselves
-unset _agent_forwarding _ssh_env_cache
+unset _ssh_env_cache
unfunction _start_agent _add_identities
+
+rm -rf "$lockdir"