### Example wrapper script for Wayland Gnome session

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This example demonstrates a wrapper script required for Wayland sessions like Gnome, which may need specific environment variables set. The script sets XDG_SESSION_TYPE and uses dbus-run-session to start gnome-session. This script would then be referenced in a .desktop file.

```shell
XDG_SESSION_TYPE=wayland dbus-run-session gnome-session
```

--------------------------------

### Install tuigreet

Source: https://context7.com/apognu/tuigreet/llms.txt

Installation commands for various Linux distributions including Arch Linux and Gentoo.

```bash
pacman -S greetd-tuigreet
yay -S greetd-tuigreet-bin
yay -S greetd-tuigreet-git
emerge --ask --verbose gui-apps/tuigreet
```

--------------------------------

### Configure Session Wrappers

Source: https://context7.com/apognu/tuigreet/llms.txt

Sets up wrappers for X11 and Wayland sessions to ensure proper environment initialization. Includes an example wrapper script for GNOME.

```bash
tuigreet --xsession-wrapper 'startx /usr/bin/env'
tuigreet --no-xsession-wrapper
tuigreet --session-wrapper '/usr/local/bin/wayland-wrapper.sh'

# /usr/local/bin/gnome-wayland-wrapper.sh
export XDG_SESSION_TYPE=wayland
exec dbus-run-session gnome-session
```

--------------------------------

### Example .desktop file for a custom session

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This snippet shows a .desktop file entry for a custom session, such as 'Wayland Gnome'. It specifies the Name of the session and the Executable path, which would point to a wrapper script or the session command. This file would be placed in a directory specified by tuigreet's --sessions argument.

```ini
[Desktop Entry]
Name=Wayland Gnome
Exec=/path/to/my/wrapper.sh
```

--------------------------------

### Configure tuigreet for passwordless power actions

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This TOML configuration example shows how to set custom commands for power actions in greetd, specifically for shutting down the system using 'sudo systemctl poweroff'. This requires that the specified commands are executable by regular users, potentially via passwordless sudo configuration.

```toml
[default_session]
command = "tuigreet --power-shutdown 'sudo systemctl poweroff'"
```

--------------------------------

### Build tuigreet from Source with Cargo

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This snippet shows how to clone the tuigreet repository, build the release version using cargo, and install the executable to the system's PATH. It requires Rust's stable toolchain and cargo to be installed.

```bash
git clone https://github.com/apognu/tuigreet && cd tuigreet
cargo build --release
# mv target/release/tuigreet /usr/local/bin/tuigreet
```

--------------------------------

### Setup cache directory for user persistence

Source: https://context7.com/apognu/tuigreet/llms.txt

Configure the required system directory for tuigreet to persist user login history and session preferences.

```bash
sudo mkdir -p /var/cache/tuigreet
sudo chown greeter:greeter /var/cache/tuigreet
sudo chmod 0755 /var/cache/tuigreet
```

--------------------------------

### Install tuigreet on Arch Linux using pacman

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This command installs the tuigreet package on Arch Linux systems using the pacman package manager. It installs the version available in the 'extra' repository.

```bash
pacman -S greetd-tuigreet
```

--------------------------------

### Build and Test tuigreet

Source: https://context7.com/apognu/tuigreet/llms.txt

Commands to clone, build, and run the test suite for tuigreet. Includes support for NSS wrapper to test user listing functionality.

```bash
git clone https://github.com/apognu/tuigreet && cd tuigreet
cargo build --release
sudo mv target/release/tuigreet /usr/local/bin/tuigreet
cargo test
export NSS_WRAPPER_PASSWD=contrib/fixtures/passwd
export NSS_WRAPPER_GROUP=contrib/fixtures/group
LD_PRELOAD=/path/to/libnss_wrapper.so cargo test --all-features
```

--------------------------------

### Configure Tuigreet via Command Line Interface

Source: https://context7.com/apognu/tuigreet/llms.txt

The CLI provides extensive configuration for display, theming, power management, and session handling. It allows users to define custom paths for sessions, set color themes, and configure keyboard shortcuts.

```bash
tuigreet --cmd sway

tuigreet \
  --time \
  --time-format "%Y-%m-%d %H:%M:%S" \
  --issue \
  --remember \
  --remember-session \
  --width 100 \
  --asterisks

tuigreet \
  --sessions /usr/share/wayland-sessions:/custom/wayland-sessions \
  --xsessions /usr/share/xsessions:/custom/xsessions \
  --xsession-wrapper "startx /usr/bin/env"

tuigreet \
  --theme 'border=magenta;text=cyan;prompt=green;time=red;action=blue;button=yellow;container=black;input=red'

tuigreet \
  --power-shutdown 'sudo systemctl poweroff' \
  --power-reboot 'sudo systemctl reboot' \
  --power-no-setsid

tuigreet \
  --user-menu \
  --user-menu-min-uid 1000 \
  --user-menu-max-uid 60000

tuigreet \
  --kb-command 2 \
  --kb-sessions 3 \
  --kb-power 12

tuigreet \
  --cmd sway \
  --env XDG_SESSION_TYPE=wayland \
  --env MOZ_ENABLE_WAYLAND=1

tuigreet --debug /var/log/tuigreet.log --cmd sway
```

--------------------------------

### Configure Greetd and NixOS for Tuigreet

Source: https://context7.com/apognu/tuigreet/llms.txt

Integration of Tuigreet into the system login manager using TOML configuration or declarative NixOS modules. These configurations define the default session and ensure necessary directories exist.

```toml
[terminal]
vt = 1

[default_session]
command = "tuigreet --time --remember --remember-session --cmd sway"
user = "greeter"
```

```nix
{ pkgs, ... }:
{
  services.greetd = {
    enable = true;
    settings = {
      default_session = {
        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --remember --cmd sway";
        user = "greeter";
      };
    };
  };

  systemd.tmpfiles.rules = [
    "d /var/cache/tuigreet 0755 greeter greeter -"
  ];
}
```

--------------------------------

### Configure tuigreet service on NixOS

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This NixOS configuration snippet enables the greetd service and configures tuigreet as the default session. It specifies the command to run tuigreet with options to display time and set 'sway' as the command to execute after login. The user for the session is set to 'greeter'.

```nix
{ pkgs, ... }:
{
  services.greetd = {
    enable = true;
    settings = {
      default_session = {
        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --cmd sway";
        user = "greeter";
      };
    };
  };
}
```

--------------------------------

### Create XDG Desktop Session Files

Source: https://context7.com/apognu/tuigreet/llms.txt

Configuration files following the XDG Desktop Entry specification to define available sessions for the greeter. These files are placed in standard system directories to be discovered by Tuigreet.

```ini
[Desktop Entry]
Name=Sway
Comment=An i3-compatible Wayland compositor
Exec=sway
Type=Application
DesktopNames=sway

[Desktop Entry]
Name=GNOME on Xorg
Comment=GNOME desktop environment (X11)
Exec=gnome-session
Type=Application
DesktopNames=GNOME
```

--------------------------------

### Configure greetd to use tuigreet

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This snippet shows how to set the default session command in greetd's configuration file to use tuigreet. It specifies the command to run and the user to run it as. This is essential for integrating tuigreet as the login manager.

```toml
[terminal]
vt = 1

[default_session]
command = "tuigreet --cmd sway"
user = "greeter"
```

--------------------------------

### Create and Configure Cache Directory for tuigreet

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This snippet demonstrates the necessary steps to create and set ownership/permissions for the cache directory required by tuigreet's `--remember*` features. The directory must be owned by the user running the greeter.

```bash
# mkdir /var/cache/tuigreet
# chown greeter:greeter /var/cache/tuigreet
# chmod 0755 /var/cache/tuigreet
```

--------------------------------

### Configure Power Management

Source: https://context7.com/apognu/tuigreet/llms.txt

Configures custom shutdown and reboot commands for tuigreet using systemctl, doas, or loginctl. Requires appropriate sudoers permissions.

```bash
tuigreet \
  --power-shutdown 'sudo systemctl poweroff' \
  --power-reboot 'sudo systemctl reboot'

tuigreet \
  --power-shutdown 'doas poweroff' \
  --power-reboot 'doas reboot'

tuigreet \
  --power-shutdown 'loginctl poweroff' \
  --power-reboot 'loginctl reboot' \
  --power-no-setsid
```

--------------------------------

### Run tuigreet tests with NSS Wrapper Mocking

Source: https://github.com/apognu/tuigreet/blob/master/README.md

This snippet shows how to run specific tuigreet tests that utilize NSS (Name Service Switch) mocking. It involves setting environment variables for the wrapper's passwd and group files, and preloading the libnss_wrapper.so library. The `--features nsswrapper nsswrapper_` flags are used to enable the necessary features for these tests.

```bash
export NSS_WRAPPER_PASSWD=contrib/fixtures/passwd
export NSS_WRAPPER_GROUP=contrib/fixtures/group
LD_PRELOAD=/path/to/libnss_wrapper.so cargo test --features nsswrapper nsswrapper_ # To run those tests specifically
LD_PRELOAD=/path/to/libnss_wrapper.so cargo test --all-features # To run the whole test suite
```

--------------------------------

### Interact with greetd via IPC

Source: https://context7.com/apognu/tuigreet/llms.txt

Use the greetd_ipc protocol to handle authentication requests and session management. This Rust implementation demonstrates how to create sessions, respond to auth prompts, and handle success or error responses.

```rust
use greetd_ipc::{Request, Response, AuthMessageType, ErrorType};

// Create a session for a user
Request::CreateSession {
    username: "john".to_string(),
}

// Respond to authentication prompts
Request::PostAuthMessageResponse {
    response: Some("password123".to_string()),
}

// Start the session
Request::StartSession {
    cmd: vec!["sway".to_string()],
    env: vec!["XDG_SESSION_TYPE=wayland".to_string()],
}
```

--------------------------------

### Customize keyboard shortcuts

Source: https://context7.com/apognu/tuigreet/llms.txt

Remap default function key shortcuts for command entry, session selection, and power management using command-line arguments.

```bash
tuigreet \
  --kb-command 1 \
  --kb-sessions 2 \
  --kb-power 11
```

--------------------------------

### Configure user menu and UID filtering

Source: https://context7.com/apognu/tuigreet/llms.txt

Enable the graphical user selection menu and restrict displayed users based on UID ranges.

```bash
tuigreet \
  --user-menu \
  --user-menu-min-uid 1000 \
  --user-menu-max-uid 65534
```

--------------------------------

### Configure tuigreet visual themes

Source: https://context7.com/apognu/tuigreet/llms.txt

Customize the appearance of the tuigreet interface using the --theme flag. Supports ANSI color names, RGB values, and indexed colors for various UI components.

```bash
tuigreet --theme 'container=black;border=magenta;title=magenta;text=white;prompt=cyan;input=green;action=gray;button=magenta'
tuigreet --theme 'container=white;border=blue;text=black;prompt=darkblue;input=darkgreen'
```

--------------------------------

### Core Application Structs

Source: https://context7.com/apognu/tuigreet/llms.txt

Rust enums defining the internal state machine, secret display behavior, greeting alignment, and authentication status for tuigreet.

```rust
pub enum Mode {
    Username,
    Password,
    Action,
    Users,
    Command,
    Sessions,
    Power,
    Processing,
}

pub enum SecretDisplay {
    Hidden,
    Character(String),
}

pub enum GreetAlign {
    Center,
    Left,
    Right,
}

pub enum AuthStatus {
    Success,
    Failure,
    Cancel,
}
```

--------------------------------

### Define Session Structures in Rust

Source: https://context7.com/apognu/tuigreet/llms.txt

Internal Rust data structures used by Tuigreet to represent XDG desktop entries and manage session types. These structures facilitate the parsing of session metadata and environment variable mapping.

```rust
pub struct Session {
    pub slug: Option<String>,
    pub name: String,
    pub command: String,
    pub session_type: SessionType,
    pub path: Option<PathBuf>,
    pub xdg_desktop_names: Option<String>,
}

pub enum SessionType {
    X11,
    Wayland,
    Tty,
    None,
}

pub enum SessionSource {
    None,
    DefaultCommand(String, Option<Vec<String>>),
    Command(String),
    Session(usize),
}
```

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