Config Loading

* Configuration is now handled in this order:
 --config flag
 ZELLIJ_CONFIG_FILE env
 get_default_config_dir() (directories-next)
 HOME/.config/zellij (for mac convenience)
 SYSTEM_DEFAULT_CONFIG_DIR (for distributions to specify sensible
 defaults ontop of zellij)
 from assets

* Fix default.yaml file

* Move default.yaml file to assets directory

7 files changed, 117 insertions, 308 deletions

diff --git a/src/cli.rs b/src/cli.rs
index ba6911d9..bc4e4a9e 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,9 +1,7 @@
+use super::common::utils::consts::{ZELLIJ_CONFIG_DIR_ENV, ZELLIJ_CONFIG_FILE_ENV};
 use std::path::PathBuf;
 use structopt::StructOpt;
 
-// TODO add to consts.rs
-const ZELLIJ_CONFIG_ENV: &str = "ZELLIJ_CONFIG";
-
 #[derive(StructOpt, Default, Debug)]
 #[structopt(name = "zellij")]
 pub struct CliArgs {
@@ -32,9 +30,13 @@ pub struct CliArgs {
     pub layout: Option<PathBuf>,
 
     /// Change where zellij looks for the configuration
-    #[structopt(short, long, env=ZELLIJ_CONFIG_ENV)]
+    #[structopt(short, long, env=ZELLIJ_CONFIG_FILE_ENV)]
     pub config: Option<PathBuf>,
 
+    /// Change where zellij looks for the configuration
+    #[structopt(long, env=ZELLIJ_CONFIG_DIR_ENV)]
+    pub config_dir: Option<PathBuf>,
+
     #[structopt(subcommand)]
     pub option: Option<ConfigCli>,
 
@@ -47,11 +49,19 @@ pub enum ConfigCli {
     /// Change the behaviour of zellij
     #[structopt(name = "option")]
     Config {
-        #[structopt(long)]
         /// Disables loading of configuration file at default location
+        #[structopt(long)]
         clean: bool,
     },
 
     #[structopt(name = "generate-completion")]
     GenerateCompletion { shell: String },
+
+    #[structopt(name = "setup")]
+    Setup {
+        /// Disables loading of configuration file at default location
+        /// Dump the default configuration file to stdout
+        #[structopt(long)]
+        dump_config: bool,
+    },
 }
diff --git a/src/common/input/config.rs b/src/common/input/config.rs
index 542116d9..62ec3dfe 100644
--- a/src/common/input/config.rs
+++ b/src/common/input/config.rs
@@ -7,8 +7,8 @@ use std::path::{Path, PathBuf};
 
 use super::keybinds::{Keybinds, KeybindsFromYaml};
 use crate::cli::ConfigCli;
+use crate::common::install;
 
-use directories_next::ProjectDirs;
 use serde::Deserialize;
 
 type ConfigResult = Result<Config, ConfigError>;
@@ -33,6 +33,8 @@ pub enum ConfigError {
     Io(io::Error),
     // Io error with path context
     IoPath(io::Error, PathBuf),
+    // Internal Deserialisation Error
+    FromUtf8(std::string::FromUtf8Error),
 }
 
 impl Default for Config {
@@ -63,18 +65,11 @@ impl Config {
         }
     }
 
-    /// Deserializes the config from a default platform specific path,
-    /// merges the default configuration - options take precedence.
-    fn from_default_path() -> ConfigResult {
-        let project_dirs = ProjectDirs::from("org", "Zellij Contributors", "Zellij").unwrap();
-        let mut config_path: PathBuf = project_dirs.config_dir().to_owned();
-        config_path.push("config.yaml");
-
-        match Config::new(&config_path) {
-            Ok(config) => Ok(config),
-            Err(ConfigError::IoPath(_, _)) => Ok(Config::default()),
-            Err(e) => Err(e),
-        }
+    /// Gets default configuration from assets
+    // TODO Deserialize the Configuration from bytes &[u8],
+    // once serde-yaml supports zero-copy
+    pub fn from_default_assets() -> ConfigResult {
+        Self::from_yaml(String::from_utf8(install::DEFAULT_CONFIG.to_vec())?.as_str())
     }
 
     /// Entry point of the configuration
@@ -82,20 +77,37 @@ impl Config {
     pub fn from_cli_config(
         location: Option<PathBuf>,
         cli_config: Option<ConfigCli>,
+        config_dir: Option<PathBuf>,
     ) -> ConfigResult {
         if let Some(path) = location {
             return Config::new(&path);
         }
 
-        match cli_config {
-            Some(ConfigCli::Config { clean, .. }) if clean => Ok(Config::default()),
-            Some(_) | None => Ok(Config::from_default_path()?),
+        if let Some(ConfigCli::Config { clean, .. }) = cli_config {
+            if clean {
+                return Config::from_default_assets();
+            }
+        }
+
+        if let Some(config) = config_dir {
+            let path = config.join("config.yaml");
+            if path.exists() {
+                Config::new(&path)
+            } else {
+                Config::from_default_assets()
+            }
+        } else {
+            Config::from_default_assets()
         }
     }
 
     /// In order not to mess up tests from changing configurations
     #[cfg(test)]
-    pub fn from_cli_config(_: Option<PathBuf>, _: Option<ConfigCli>) -> ConfigResult {
+    pub fn from_cli_config(
+        _: Option<PathBuf>,
+        _: Option<ConfigCli>,
+        _: Option<PathBuf>,
+    ) -> ConfigResult {
         Ok(Config::default())
     }
 }
@@ -108,6 +120,7 @@ impl Display for ConfigError {
                 write!(formatter, "IoError: {}, File: {}", err, path.display(),)
             }
             ConfigError::Serde(ref err) => write!(formatter, "Deserialisation error: {}", err),
+            ConfigError::FromUtf8(ref err) => write!(formatter, "FromUtf8Error: {}", err),
         }
     }
 }
@@ -118,6 +131,7 @@ impl std::error::Error for ConfigError {
             ConfigError::Io(ref err) => Some(err),
             ConfigError::IoPath(ref err, _) => Some(err),
             ConfigError::Serde(ref err) => Some(err),
+            ConfigError::FromUtf8(ref err) => Some(err),
         }
     }
 }
@@ -134,6 +148,12 @@ impl From<serde_yaml::Error> for ConfigError {
     }
 }
 
+impl From<std::string::FromUtf8Error> for ConfigError {
+    fn from(err: std::string::FromUtf8Error) -> ConfigError {
+        ConfigError::FromUtf8(err)
+    }
+}
+
 // The unit test location.
 #[cfg(test)]
 mod config_test {
@@ -142,14 +162,14 @@ mod config_test {
     #[test]
     fn clean_option_equals_default_config() {
         let cli_config = ConfigCli::Config { clean: true };
-        let config = Config::from_cli_config(None, Some(cli_config)).unwrap();
+        let config = Config::from_cli_config(None, Some(cli_config), None).unwrap();
         let default = Config::default();
         assert_eq!(config, default);
     }
 
     #[test]
     fn no_config_option_file_equals_default_config() {
-        let config = Config::from_cli_config(None, None).unwrap();
+        let config = Config::from_cli_config(None, None, None).unwrap();
         let default = Config::default();
         assert_eq!(config, default);
     }
diff --git a/src/common/input/keybinds.rs b/src/common/input/keybinds.rs
index ee039f83..9842fbe2 100644
--- a/src/common/input/keybinds.rs
+++ b/src/common/input/keybinds.rs
@@ -1,7 +1,8 @@
 //! Mapping of inputs to sequences of actions.
 use std::collections::HashMap;
 
-use super::actions::{Action, Direction};
+use super::actions::Action;
+use super::config;
 
 use serde::Deserialize;
 use strum::IntoEnumIterator;
@@ -57,14 +58,9 @@ enum Unbind {
 
 impl Default for Keybinds {
     fn default() -> Keybinds {
-        let mut defaults = Keybinds::new();
-
-        for mode in InputMode::iter() {
-            defaults
-                .0
-                .insert(mode, Keybinds::get_defaults_for_mode(&mode));
-        }
-        defaults
+        config::Config::from_default_assets()
+            .expect("Keybinds from default assets Error")
+            .keybinds
     }
 }
 
@@ -109,278 +105,6 @@ impl Keybinds {
         keybinds
     }
 
-    /// Returns the default keybinds for a given [`InputMode`].
-    fn get_defaults_for_mode(mode: &InputMode) -> ModeKeybinds {
-        let mut defaults = HashMap::new();
-
-        match *mode {
-            InputMode::Normal => {
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Locked)],
-                );
-                defaults.insert(Key::Ctrl('p'), vec![Action::SwitchToMode(InputMode::Pane)]);
-                defaults.insert(
-                    Key::Ctrl('r'),
-                    vec![Action::SwitchToMode(InputMode::Resize)],
-                );
-                defaults.insert(Key::Ctrl('t'), vec![Action::SwitchToMode(InputMode::Tab)]);
-                defaults.insert(
-                    Key::Ctrl('s'),
-                    vec![Action::SwitchToMode(InputMode::Scroll)],
-                );
-                defaults.insert(Key::Ctrl('q'), vec![Action::Quit]);
-
-                defaults.insert(Key::Alt('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Alt('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Alt('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Alt('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Alt('l'), vec![Action::MoveFocus(Direction::Right)]);
-                defaults.insert(Key::Alt('['), vec![Action::FocusPreviousPane]);
-                defaults.insert(Key::Alt(']'), vec![Action::FocusNextPane]);
-            }
-            InputMode::Locked => {
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-            }
-            InputMode::Resize => {
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Locked)],
-                );
-                defaults.insert(Key::Ctrl('p'), vec![Action::SwitchToMode(InputMode::Pane)]);
-                defaults.insert(
-                    Key::Ctrl('r'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(Key::Ctrl('t'), vec![Action::SwitchToMode(InputMode::Tab)]);
-                defaults.insert(
-                    Key::Ctrl('s'),
-                    vec![Action::SwitchToMode(InputMode::Scroll)],
-                );
-                defaults.insert(Key::Ctrl('q'), vec![Action::Quit]);
-                defaults.insert(Key::Esc, vec![Action::SwitchToMode(InputMode::Normal)]);
-                defaults.insert(
-                    Key::Char('\n'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Char(' '),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-
-                defaults.insert(Key::Char('h'), vec![Action::Resize(Direction::Left)]);
-                defaults.insert(Key::Char('j'), vec![Action::Resize(Direction::Down)]);
-                defaults.insert(Key::Char('k'), vec![Action::Resize(Direction::Up)]);
-                defaults.insert(Key::Char('l'), vec![Action::Resize(Direction::Right)]);
-
-                defaults.insert(Key::Left, vec![Action::Resize(Direction::Left)]);
-                defaults.insert(Key::Down, vec![Action::Resize(Direction::Down)]);
-                defaults.insert(Key::Up, vec![Action::Resize(Direction::Up)]);
-                defaults.insert(Key::Right, vec![Action::Resize(Direction::Right)]);
-
-                defaults.insert(Key::Alt('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Alt('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Alt('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Alt('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Alt('l'), vec![Action::MoveFocus(Direction::Right)]);
-                defaults.insert(Key::Alt('['), vec![Action::FocusPreviousPane]);
-                defaults.insert(Key::Alt(']'), vec![Action::FocusNextPane]);
-            }
-            InputMode::Pane => {
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Locked)],
-                );
-                defaults.insert(
-                    Key::Ctrl('p'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Ctrl('r'),
-                    vec![Action::SwitchToMode(InputMode::Resize)],
-                );
-                defaults.insert(Key::Ctrl('t'), vec![Action::SwitchToMode(InputMode::Tab)]);
-                defaults.insert(
-                    Key::Ctrl('s'),
-                    vec![Action::SwitchToMode(InputMode::Scroll)],
-                );
-                defaults.insert(Key::Ctrl('q'), vec![Action::Quit]);
-                defaults.insert(Key::Esc, vec![Action::SwitchToMode(InputMode::Normal)]);
-                defaults.insert(
-                    Key::Char('\n'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Char(' '),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-
-                defaults.insert(Key::Char('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Char('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Char('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Char('l'), vec![Action::MoveFocus(Direction::Right)]);
-
-                defaults.insert(Key::Left, vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Down, vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Up, vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Right, vec![Action::MoveFocus(Direction::Right)]);
-
-                defaults.insert(Key::Char('p'), vec![Action::SwitchFocus]);
-                defaults.insert(Key::Char('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Char('d'), vec![Action::NewPane(Some(Direction::Down))]);
-                defaults.insert(
-                    Key::Char('r'),
-                    vec![Action::NewPane(Some(Direction::Right))],
-                );
-                defaults.insert(Key::Char('x'), vec![Action::CloseFocus]);
-                defaults.insert(Key::Char('f'), vec![Action::ToggleFocusFullscreen]);
-
-                defaults.insert(Key::Alt('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Alt('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Alt('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Alt('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Alt('l'), vec![Action::MoveFocus(Direction::Right)]);
-                defaults.insert(Key::Alt('['), vec![Action::FocusPreviousPane]);
-                defaults.insert(Key::Alt(']'), vec![Action::FocusNextPane]);
-            }
-            InputMode::Tab => {
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Locked)],
-                );
-                defaults.insert(Key::Ctrl('p'), vec![Action::SwitchToMode(InputMode::Pane)]);
-                defaults.insert(
-                    Key::Ctrl('r'),
-                    vec![Action::SwitchToMode(InputMode::Resize)],
-                );
-                defaults.insert(
-                    Key::Ctrl('t'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Ctrl('s'),
-                    vec![Action::SwitchToMode(InputMode::Scroll)],
-                );
-                defaults.insert(Key::Ctrl('q'), vec![Action::Quit]);
-                defaults.insert(Key::Esc, vec![Action::SwitchToMode(InputMode::Normal)]);
-                defaults.insert(
-                    Key::Char('\n'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Char(' '),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-
-                defaults.insert(Key::Char('h'), vec![Action::GoToPreviousTab]);
-                defaults.insert(Key::Char('j'), vec![Action::GoToNextTab]);
-                defaults.insert(Key::Char('k'), vec![Action::GoToPreviousTab]);
-                defaults.insert(Key::Char('l'), vec![Action::GoToNextTab]);
-
-                defaults.insert(Key::Left, vec![Action::GoToPreviousTab]);
-                defaults.insert(Key::Down, vec![Action::GoToNextTab]);
-                defaults.insert(Key::Up, vec![Action::GoToPreviousTab]);
-                defaults.insert(Key::Right, vec![Action::GoToNextTab]);
-
-                defaults.insert(Key::Char('n'), vec![Action::NewTab]);
-                defaults.insert(Key::Char('x'), vec![Action::CloseTab]);
-
-                defaults.insert(
-                    Key::Char('r'),
-                    vec![
-                        Action::SwitchToMode(InputMode::RenameTab),
-                        Action::TabNameInput(vec![0]),
-                    ],
-                );
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                for i in '1'..='9' {
-                    defaults.insert(Key::Char(i), vec![Action::GoToTab(i.to_digit(10).unwrap())]);
-                }
-                defaults.insert(Key::Alt('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Alt('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Alt('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Alt('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Alt('l'), vec![Action::MoveFocus(Direction::Right)]);
-                defaults.insert(Key::Alt('['), vec![Action::FocusPreviousPane]);
-                defaults.insert(Key::Alt(']'), vec![Action::FocusNextPane]);
-            }
-            InputMode::Scroll => {
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Locked)],
-                );
-                defaults.insert(Key::Ctrl('p'), vec![Action::SwitchToMode(InputMode::Pane)]);
-                defaults.insert(
-                    Key::Ctrl('r'),
-                    vec![Action::SwitchToMode(InputMode::Resize)],
-                );
-                defaults.insert(Key::Ctrl('t'), vec![Action::SwitchToMode(InputMode::Tab)]);
-                defaults.insert(
-                    Key::Ctrl('s'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(Key::Ctrl('q'), vec![Action::Quit]);
-                defaults.insert(Key::Esc, vec![Action::SwitchToMode(InputMode::Normal)]);
-                defaults.insert(
-                    Key::Char('\n'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Char(' '),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-
-                defaults.insert(Key::Char('j'), vec![Action::ScrollDown]);
-                defaults.insert(Key::Char('k'), vec![Action::ScrollUp]);
-
-                defaults.insert(Key::Ctrl('f'), vec![Action::PageScrollDown]);
-                defaults.insert(Key::Ctrl('b'), vec![Action::PageScrollUp]);
-                defaults.insert(Key::PageDown, vec![Action::PageScrollDown]);
-                defaults.insert(Key::PageUp, vec![Action::PageScrollUp]);
-
-                defaults.insert(Key::Down, vec![Action::ScrollDown]);
-                defaults.insert(Key::Up, vec![Action::ScrollUp]);
-
-                defaults.insert(Key::Alt('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Alt('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Alt('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Alt('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Alt('l'), vec![Action::MoveFocus(Direction::Right)]);
-                defaults.insert(Key::Alt('['), vec![Action::FocusPreviousPane]);
-                defaults.insert(Key::Alt(']'), vec![Action::FocusNextPane]);
-            }
-            InputMode::RenameTab => {
-                defaults.insert(Key::Char('\n'), vec![Action::SwitchToMode(InputMode::Tab)]);
-                defaults.insert(
-                    Key::Ctrl('g'),
-                    vec![Action::SwitchToMode(InputMode::Normal)],
-                );
-                defaults.insert(
-                    Key::Esc,
-                    vec![
-                        Action::TabNameInput(vec![0x1b]),
-                        Action::SwitchToMode(InputMode::Tab),
-                    ],
-                );
-
-                defaults.insert(Key::Alt('n'), vec![Action::NewPane(None)]);
-                defaults.insert(Key::Alt('h'), vec![Action::MoveFocus(Direction::Left)]);
-                defaults.insert(Key::Alt('j'), vec![Action::MoveFocus(Direction::Down)]);
-                defaults.insert(Key::Alt('k'), vec![Action::MoveFocus(Direction::Up)]);
-                defaults.insert(Key::Alt('l'), vec![Action::MoveFocus(Direction::Right)]);
-                defaults.insert(Key::Alt('['), vec![Action::FocusPreviousPane]);
-                defaults.insert(Key::Alt(']'), vec![Action::FocusNextPane]);
-            }
-        }
-        ModeKeybinds(defaults)
-    }
-
     /// Converts a [`Key`] terminal event to a sequence of [`Action`]s according to the current
     /// [`InputMode`] and [`Keybinds`].
     pub fn key_to_actions(
diff --git a/src/common/install.rs b/src/common/install.rs
index 86fdd269..c7f4d4be 100644
--- a/src/common/install.rs
+++ b/src/common/install.rs
@@ -1,4 +1,7 @@
-use std::{fs, path::Path};
+use crate::common::utils::consts::SYSTEM_DEFAULT_CONFIG_DIR;
+use directories_next::{BaseDirs, ProjectDirs};
+use std::io::Write;
+use std::{fs, path::Path, path::PathBuf};
 
 const VERSION: &str = env!("CARGO_PKG_VERSION");
 
@@ -39,3 +42,44 @@ pub fn populate_data_dir(data_dir: &Path) {
         }
     }
 }
+
+pub fn default_config_dir() -> Option<PathBuf> {
+    vec![
+        Some(xdg_config_dir()),
+        home_config_dir(),
+        Some(Path::new(SYSTEM_DEFAULT_CONFIG_DIR).to_path_buf()),
+    ]
+    .into_iter()
+    .filter(|p| p.is_some())
+    .find(|p| p.clone().unwrap().exists())
+    .flatten()
+}
+
+pub fn xdg_config_dir() -> PathBuf {
+    let project_dirs = ProjectDirs::from("org", "Zellij Contributors", "Zellij").unwrap();
+    project_dirs.config_dir().to_owned()
+}
+
+pub fn home_config_dir() -> Option<PathBuf> {
+    if let Some(user_dirs) = BaseDirs::new() {
+        let config_dir = user_dirs.home_dir().join("/.config/zellij");
+        Some(config_dir)
+    } else {
+        None
+    }
+}
+
+pub fn dump_asset(asset: &[u8]) -> std::io::Result<()> {
+    std::io::stdout().write_all(&asset)?;
+    Ok(())
+}
+
+pub const DEFAULT_CONFIG: &[u8] = include_bytes!(concat!(
+    env!("CARGO_MANIFEST_DIR"),
+    "/",
+    "assets/config/default.yaml"
+));
+
+pub fn dump_default_config() -> std::io::Result<()> {
+    dump_asset(DEFAULT_CONFIG)
+}
diff --git a/src/common/mod.rs b/src/common/mod.rs
index 79e48780..a45b23a4 100644
--- a/src/common/mod.rs
+++ b/src/common/mod.rs
@@ -131,7 +131,9 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs) {
 
     env::set_var(&"ZELLIJ", "0");
 
-    let config = Config::from_cli_config(opts.config, opts.option)
+    let config_dir = opts.config_dir.or_else(install::default_config_dir);
+
+    let config = Config::from_cli_config(opts.config, opts.option, config_dir)
         .map_err(|e| {
             eprintln!("There was an error in the config file:\n{}", e);
             std::process::exit(1);
diff --git a/src/common/utils/consts.rs b/src/common/utils/consts.rs
index 663a545d..4bd1b5b1 100644
--- a/src/common/utils/consts.rs
+++ b/src/common/utils/consts.rs
@@ -4,3 +4,9 @@ pub const ZELLIJ_TMP_DIR: &str = "/tmp/zellij";
 pub const ZELLIJ_TMP_LOG_DIR: &str = "/tmp/zellij/zellij-log";
 pub const ZELLIJ_TMP_LOG_FILE: &str = "/tmp/zellij/zellij-log/log.txt";
 pub const ZELLIJ_IPC_PIPE: &str = "/tmp/zellij/ipc";
+
+pub const ZELLIJ_CONFIG_FILE_ENV: &str = "ZELLIJ_CONFIG_FILE";
+pub const ZELLIJ_CONFIG_DIR_ENV: &str = "ZELLIJ_CONFIG_DIR";
+
+// TODO: ${PREFIX} argument in makefile
+pub const SYSTEM_DEFAULT_CONFIG_DIR: &str = "/etc/zellij";
diff --git a/src/main.rs b/src/main.rs
index 8da85c87..12269ae9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,7 +14,7 @@ use crate::utils::{
 };
 use client::{boundaries, layout, panes, tab};
 use common::{
-    command_is_executing, errors, os_input_output, pty_bus, screen, start, utils, wasm_vm,
+    command_is_executing, errors, install, os_input_output, pty_bus, screen, start, utils, wasm_vm,
     ApiCommand,
 };
 use std::io::Write;
@@ -59,6 +59,9 @@ pub fn main() {
         };
         let mut out = std::io::stdout();
         CliArgs::clap().gen_completions_to("zellij", shell, &mut out);
+    } else if let Some(crate::cli::ConfigCli::Setup { .. }) = opts.option {
+        install::dump_default_config().expect("Failed to print to stdout");
+        std::process::exit(1);
     } else {
         let os_input = get_os_input();
         atomic_create_dir(ZELLIJ_TMP_DIR).unwrap();