feat(last-working-dir): log separate lwds for different SSH keys on the same user account (#9534)

Co-authored-by: Marc Cornellà <hello@mcornella.com>
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wilkis 2021-01-12 20:40:27 +01:00 committed by GitHub
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2 changed files with 31 additions and 11 deletions

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# last-working-dir plugin
Keeps track of the last used working directory and automatically jumps into it
for new shells, unless:
for new shells, unless the starting directory is not `$HOME`.
- The plugin is already loaded.
- The current `$PWD` is not `$HOME`.
Also adds `lwd` function to jump to the last working directory.
Also adds a `lwd` function to jump to the last working directory.
To use it, add `last-working-dir` to the plugins array in your zshrc file:
```zsh
plugins=(... last-working-dir)
```
## Features
### Use separate last-working-dir files with different SSH keys
If the same user account is used by multiple users connecting via different SSH keys, you can
configure SSH to map them to different `SSH_USER`s and the plugin will use separate lwd files
for each one.
Make sure that your SSH server allows environment variables. You can enable this feature
within the `/etc/sshd/sshd_config` file:
```
PermitUserEnvironment yes
```
Then, add `environment="SSH_USER=<SSH_USERNAME>"` before the SSH keys in your `authorized_keys` file:
```
environment="SSH_USER=a.test@example.com" ssh-ed25519 AAAAC3Nz...
```

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@ -5,16 +5,18 @@ typeset -g ZSH_LAST_WORKING_DIRECTORY
autoload -U add-zsh-hook
add-zsh-hook chpwd chpwd_last_working_dir
chpwd_last_working_dir() {
if [ "$ZSH_SUBSHELL" = 0 ]; then
local cache_file="$ZSH_CACHE_DIR/last-working-dir"
pwd >| "$cache_file"
fi
# Don't run in subshells
[[ "$ZSH_SUBSHELL" -eq 0 ]] || return 0
# Add ".$SSH_USER" suffix to cache file if $SSH_USER is set and non-empty
local cache_file="$ZSH_CACHE_DIR/last-working-dir${SSH_USER:+.$SSH_USER}"
pwd >| "$cache_file"
}
# Changes directory to the last working directory
lwd() {
local cache_file="$ZSH_CACHE_DIR/last-working-dir"
[[ -r "$cache_file" ]] && cd "$(cat "$cache_file")"
# Add ".$SSH_USER" suffix to cache file if $SSH_USER is set and non-empty
local cache_file="$ZSH_CACHE_DIR/last-working-dir${SSH_USER:+.$SSH_USER}"
[[ -r "$cache_file" ]] && cd "$(cat "$cache_file")"
}
# Jump to last directory automatically unless: