feat(ssh-agent): add quiet option to silence plugin (#9659)

Closes #9659

Co-authored-by: Jeff Warner <jeff@develops.software>
This commit is contained in:
Marc Cornellà 2021-11-17 09:55:39 +01:00
parent fb12e41353
commit 60b89cd264
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GPG Key ID: 0314585E776A9C1B
2 changed files with 38 additions and 30 deletions

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@ -13,28 +13,24 @@ plugins=(... ssh-agent)
**IMPORTANT: put these settings _before_ the line that sources oh-my-zsh**
### `agent-forwarding`
To enable **agent forwarding support** add the following to your zshrc file:
```zsh
zstyle :omz:plugins:ssh-agent agent-forwarding on
zstyle :omz:plugins:ssh-agent agent-forwarding yes
```
----
### `helper`
To **NOT load any identities on start** use the `lazy` setting. This is particularly
useful when combined with the `AddKeysToAgent` setting (available since OpenSSH 7.2),
since it allows to enter the password only on first use. _NOTE: you can know your
OpenSSH version with `ssh -V`._
To set an **external helper** to ask for the passwords and possibly store
them in the system keychain use the `helper` style. For example:
```zsh
zstyle :omz:plugins:ssh-agent lazy yes
zstyle :omz:plugins:ssh-agent helper ksshaskpass
```
You can enable `AddKeysToAgent` by passing `-o AddKeysToAgent=yes` to the `ssh` command,
or by adding `AddKeysToAgent yes` to your `~/.ssh/config` file [1].
See the [OpenSSH 7.2 Release Notes](http://www.openssh.com/txt/release-7.2).
----
### `identities`
To **load multiple identities** use the `identities` style (**this has no effect
if the `lazy` setting is enabled**). For example:
@ -52,7 +48,22 @@ zstyle :omz:plugins:ssh-agent identities ~/.config/ssh/id_rsa ~/.config/ssh/id_r
zstyle :omz:plugins:ssh-agent identities ~/.config/ssh/{id_rsa,id_rsa2,id_github}
```
----
### `lazy`
To **NOT load any identities on start** use the `lazy` setting. This is particularly
useful when combined with the `AddKeysToAgent` setting (available since OpenSSH 7.2),
since it allows to enter the password only on first use. _NOTE: you can know your
OpenSSH version with `ssh -V`._
```zsh
zstyle :omz:plugins:ssh-agent lazy yes
```
You can enable `AddKeysToAgent` by passing `-o AddKeysToAgent=yes` to the `ssh` command,
or by adding `AddKeysToAgent yes` to your `~/.ssh/config` file [1].
See the [OpenSSH 7.2 Release Notes](http://www.openssh.com/txt/release-7.2).
### `lifetime`
To **set the maximum lifetime of the identities**, use the `lifetime` style.
The lifetime may be specified in seconds or as described in sshd_config(5)
@ -62,7 +73,15 @@ The lifetime may be specified in seconds or as described in sshd_config(5)
zstyle :omz:plugins:ssh-agent lifetime 4h
```
----
### `quiet`
To silence the plugin, use the following setting:
```zsh
zstyle :omz:plugins:ssh-agent quiet yes
```
### `ssh-add-args`
To **pass arguments to the `ssh-add` command** that adds the identities on startup,
use the `ssh-add-args` setting. You can pass multiple arguments separated by spaces:
@ -80,15 +99,6 @@ ssh-add -K -c -a /run/user/1000/ssh-auth <identities>
For valid `ssh-add` arguments run `ssh-add --help` or `man ssh-add`.
----
To set an **external helper** to ask for the passwords and possibly store
them in the system keychain use the `helper` style. For example:
```zsh
zstyle :omz:plugins:ssh-agent helper ksshaskpass
```
## Credits
Based on code from Joseph M. Reagle: https://www.cygwin.com/ml/cygwin/2001-06/msg00537.html

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@ -18,7 +18,7 @@ function _start_agent() {
zstyle -s :omz:plugins:ssh-agent lifetime lifetime
# start ssh-agent and setup environment
echo Starting ssh-agent...
zstyle -t :omz:plugins:ssh-agent quiet || echo >&2 "Starting ssh-agent ..."
ssh-agent -s ${lifetime:+-t} ${lifetime} | sed '/^echo/d' >! "$ssh_env_cache"
chmod 600 "$ssh_env_cache"
. "$ssh_env_cache" > /dev/null
@ -78,7 +78,7 @@ function _add_identities() {
if [[ -n "$helper" ]]; then
if [[ -z "${commands[$helper]}" ]]; then
echo "ssh-agent: the helper '$helper' has not been found."
echo >&2 "ssh-agent: the helper '$helper' has not been found."
else
SSH_ASKPASS="$helper" ssh-add "${args[@]}" ${^not_loaded} < /dev/null
return $?
@ -88,11 +88,9 @@ function _add_identities() {
ssh-add "${args[@]}" ${^not_loaded}
}
# test if agent-forwarding is enabled
zstyle -b :omz:plugins:ssh-agent agent-forwarding agent_forwarding
# Add a nifty symlink for screen/tmux if agent forwarding
if [[ $agent_forwarding = "yes" && -n "$SSH_AUTH_SOCK" && ! -L "$SSH_AUTH_SOCK" ]]; then
# Add a nifty symlink for screen/tmux if agent forwarding is enabled
if zstyle -t :omz:plugins:ssh-agent agent-forwarding \
&& [[ -n "$SSH_AUTH_SOCK" && ! -L "$SSH_AUTH_SOCK" ]]; then
ln -sf "$SSH_AUTH_SOCK" /tmp/ssh-agent-$USERNAME-screen
else
_start_agent