Merge pull request #224 from a-kenji/config-file

Add: Config file

8 files changed, 690 insertions, 270 deletions

diff --git a/src/cli.rs b/src/cli.rs
index 6e384e16..b1fb8f38 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,7 +1,7 @@
 use std::path::PathBuf;
 use structopt::StructOpt;
 
-#[derive(StructOpt, Debug, Default)]
+#[derive(StructOpt, Default, Debug)]
 #[structopt(name = "zellij")]
 pub struct CliArgs {
     /// Send "split (direction h == horizontal / v == vertical)" to active zellij session
@@ -24,6 +24,21 @@ pub struct CliArgs {
     #[structopt(short, long)]
     pub layout: Option<PathBuf>,
 
+    #[structopt(subcommand)]
+    pub config: Option<ConfigCli>,
+
     #[structopt(short, long)]
     pub debug: bool,
 }
+
+#[derive(Debug, StructOpt)]
+pub enum ConfigCli {
+    /// Path to the configuration yaml file
+    #[structopt(alias = "c")]
+    Config {
+        path: Option<PathBuf>,
+        #[structopt(long)]
+        /// Disables loading of configuration file at default location
+        clean: bool,
+    },
+}
diff --git a/src/common/input/actions.rs b/src/common/input/actions.rs
index f4226864..ac923f7d 100644
--- a/src/common/input/actions.rs
+++ b/src/common/input/actions.rs
@@ -1,9 +1,10 @@
 //! Definition of the actions that can be bound to keys.
 
+use serde::{Deserialize, Serialize};
 use zellij_tile::data::InputMode;
 
 /// The four directions (left, right, up, down).
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 pub enum Direction {
     Left,
     Right,
@@ -12,7 +13,7 @@ pub enum Direction {
 }
 
 /// Actions that can be bound to keys.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 pub enum Action {
     /// Quit Zellij.
     Quit,
diff --git a/src/common/input/config.rs b/src/common/input/config.rs
new file mode 100644
index 00000000..4bb9e10f
--- /dev/null
+++ b/src/common/input/config.rs
@@ -0,0 +1,158 @@
+//! Deserializes configuration options.
+use std::error;
+use std::fmt::{self, Display};
+use std::fs::File;
+use std::io::{self, Read};
+use std::path::{Path, PathBuf};
+
+use super::keybinds::{Keybinds, KeybindsFromYaml};
+use crate::cli::ConfigCli;
+
+use directories_next::ProjectDirs;
+use serde::Deserialize;
+
+type ConfigResult = Result<Config, ConfigError>;
+
+/// Intermediate deserialisation config struct
+#[derive(Debug, Deserialize)]
+pub struct ConfigFromYaml {
+    pub keybinds: Option<KeybindsFromYaml>,
+}
+
+/// Main configuration.
+#[derive(Debug, Clone, PartialEq)]
+pub struct Config {
+    pub keybinds: Keybinds,
+}
+
+#[derive(Debug)]
+pub enum ConfigError {
+    // Deserialisation error
+    Serde(serde_yaml::Error),
+    // Io error
+    Io(io::Error),
+    // Io error with path context
+    IoPath(io::Error, PathBuf),
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        let keybinds = Keybinds::default();
+        Config { keybinds }
+    }
+}
+
+impl Config {
+    /// Uses defaults, but lets config override them.
+    pub fn from_yaml(yaml_config: &str) -> ConfigResult {
+        let config_from_yaml: ConfigFromYaml = serde_yaml::from_str(&yaml_config)?;
+        let keybinds = Keybinds::get_default_keybinds_with_config(config_from_yaml.keybinds);
+        Ok(Config { keybinds })
+    }
+
+    /// Deserializes from given path.
+    #[allow(unused_must_use)]
+    pub fn new(path: &Path) -> ConfigResult {
+        match File::open(path) {
+            Ok(mut file) => {
+                let mut yaml_config = String::new();
+                file.read_to_string(&mut yaml_config)
+                    .map_err(|e| ConfigError::IoPath(e, path.to_path_buf()))?;
+                Ok(Config::from_yaml(&yaml_config)?)
+            }
+            Err(e) => Err(ConfigError::IoPath(e, path.into())),
+        }
+    }
+
+    /// 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),
+        }
+    }
+
+    /// Entry point of the configuration
+    #[cfg(not(test))]
+    pub fn from_cli_config(cli_config: Option<ConfigCli>) -> ConfigResult {
+        match cli_config {
+            Some(ConfigCli::Config { clean, .. }) if clean => Ok(Config::default()),
+            Some(ConfigCli::Config { path, .. }) if path.is_some() => {
+                Ok(Config::new(&path.unwrap())?)
+            }
+            Some(_) | None => Ok(Config::from_default_path()?),
+        }
+    }
+
+    //#[allow(unused_must_use)]
+    /// In order not to mess up tests from changing configurations
+    #[cfg(test)]
+    pub fn from_cli_config(_: Option<ConfigCli>) -> ConfigResult {
+        Ok(Config::default())
+    }
+}
+
+impl Display for ConfigError {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            ConfigError::Io(ref err) => write!(formatter, "IoError: {}", err),
+            ConfigError::IoPath(ref err, ref path) => {
+                write!(formatter, "IoError: {}, File: {}", err, path.display(),)
+            }
+            ConfigError::Serde(ref err) => write!(formatter, "Deserialisation error: {}", err),
+        }
+    }
+}
+
+impl std::error::Error for ConfigError {
+    fn cause(&self) -> Option<&dyn error::Error> {
+        match *self {
+            ConfigError::Io(ref err) => Some(err),
+            ConfigError::IoPath(ref err, _) => Some(err),
+            ConfigError::Serde(ref err) => Some(err),
+        }
+    }
+}
+
+impl From<io::Error> for ConfigError {
+    fn from(err: io::Error) -> ConfigError {
+        ConfigError::Io(err)
+    }
+}
+
+impl From<serde_yaml::Error> for ConfigError {
+    fn from(err: serde_yaml::Error) -> ConfigError {
+        ConfigError::Serde(err)
+    }
+}
+
+// The unit test location.
+#[cfg(test)]
+mod config_test {
+    use super::*;
+
+    #[test]
+    fn clean_option_equals_default_config() {
+        let no_file = PathBuf::from(r"../fixtures/config/config.yamlll");
+        let cli_config = ConfigCli::Config {
+            path: Some(no_file),
+            clean: true,
+        };
+        let config = Config::from_cli_config(Some(cli_config)).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).unwrap();
+        let default = Config::default();
+        assert_eq!(config, default);
+    }
+}
diff --git a/src/common/input/handler.rs b/src/common/input/handler.rs
index b75d267e..2020fc20 100644
--- a/src/common/input/handler.rs
+++ b/src/common/input/handler.rs
@@ -1,7 +1,8 @@
 //! Main input logic.
 
 use super::actions::Action;
-use super::keybinds::get_default_keybinds;
+use super::keybinds::Keybinds;
+use crate::common::input::config::Config;
 use crate::common::{AppInstruction, SenderWithContext, OPENCALLS};
 use crate::errors::ContextType;
 use crate::os_input_output::OsApi;
@@ -13,14 +14,13 @@ use crate::CommandIsExecuting;
 use termion::input::{TermRead, TermReadEventsAndRaw};
 use zellij_tile::data::{Event, InputMode, Key, ModeInfo};
 
-use super::keybinds::key_to_actions;
-
 /// Handles the dispatching of [`Action`]s according to the current
 /// [`InputMode`], and keep tracks of the current [`InputMode`].
 struct InputHandler {
     /// The current input mode
     mode: InputMode,
     os_input: Box<dyn OsApi>,
+    config: Config,
     command_is_executing: CommandIsExecuting,
     send_screen_instructions: SenderWithContext<ScreenInstruction>,
     send_pty_instructions: SenderWithContext<PtyInstruction>,
@@ -33,6 +33,7 @@ impl InputHandler {
     fn new(
         os_input: Box<dyn OsApi>,
         command_is_executing: CommandIsExecuting,
+        config: Config,
         send_screen_instructions: SenderWithContext<ScreenInstruction>,
         send_pty_instructions: SenderWithContext<PtyInstruction>,
         send_plugin_instructions: SenderWithContext<PluginInstruction>,
@@ -41,6 +42,7 @@ impl InputHandler {
         InputHandler {
             mode: InputMode::Normal,
             os_input,
+            config,
             command_is_executing,
             send_screen_instructions,
             send_pty_instructions,
@@ -57,41 +59,37 @@ impl InputHandler {
         self.send_pty_instructions.update(err_ctx);
         self.send_app_instructions.update(err_ctx);
         self.send_screen_instructions.update(err_ctx);
-        if let Ok(keybinds) = get_default_keybinds() {
-            'input_loop: loop {
-                //@@@ I think this should actually just iterate over stdin directly
-                let stdin_buffer = self.os_input.read_from_stdin();
-                for key_result in stdin_buffer.events_and_raw() {
-                    match key_result {
-                        Ok((event, raw_bytes)) => match event {
-                            termion::event::Event::Key(key) => {
-                                let key = cast_termion_key(key);
-                                // FIXME this explicit break is needed because the current test
-                                // framework relies on it to not create dead threads that loop
-                                // and eat up CPUs. Do not remove until the test framework has
-                                // been revised. Sorry about this (@categorille)
-                                let mut should_break = false;
-                                for action in key_to_actions(&key, raw_bytes, &self.mode, &keybinds)
-                                {
-                                    should_break |= self.dispatch_action(action);
-                                }
-                                if should_break {
-                                    break 'input_loop;
-                                }
+        let keybinds = self.config.keybinds.clone();
+        'input_loop: loop {
+            //@@@ I think this should actually just iterate over stdin directly
+            let stdin_buffer = self.os_input.read_from_stdin();
+            for key_result in stdin_buffer.events_and_raw() {
+                match key_result {
+                    Ok((event, raw_bytes)) => match event {
+                        termion::event::Event::Key(key) => {
+                            let key = cast_termion_key(key);
+                            // FIXME this explicit break is needed because the current test
+                            // framework relies on it to not create dead threads that loop
+                            // and eat up CPUs. Do not remove until the test framework has
+                            // been revised. Sorry about this (@categorille)
+                            let mut should_break = false;
+                            for action in
+                                Keybinds::key_to_actions(&key, raw_bytes, &self.mode, &keybinds)
+                            {
+                                should_break |= self.dispatch_action(action);
                             }
-                            termion::event::Event::Mouse(_)
-                            | termion::event::Event::Unsupported(_) => {
-                                // Mouse and unsupported events aren't implemented yet,
-                                // use a NoOp untill then.
+                            if should_break {
+                                break 'input_loop;
                             }
-                        },
-                        Err(err) => panic!("Encountered read error: {:?}", err),
-                    }
+                        }
+                        termion::event::Event::Mouse(_) | termion::event::Event::Unsupported(_) => {
+                            // Mouse and unsupported events aren't implemented yet,
+                            // use a NoOp untill then.
+                        }
+                    },
+                    Err(err) => panic!("Encountered read error: {:?}", err),
                 }
             }
-        } else {
-            //@@@ Error handling?
-            self.exit();
         }
     }
 
@@ -291,6 +289,7 @@ pub fn get_mode_info(mode: InputMode) -> ModeInfo {
 /// its [`InputHandler::handle_input()`] loop.
 pub fn input_loop(
     os_input: Box<dyn OsApi>,
+    config: Config,
     command_is_executing: CommandIsExecuting,
     send_screen_instructions: SenderWithContext<ScreenInstruction>,
     send_pty_instructions: SenderWithContext<PtyInstruction>,
@@ -300,6 +299,7 @@ pub fn input_loop(
     let _handler = InputHandler::new(
         os_input,
         command_is_executing,
+        config,
         send_screen_instructions,
         send_pty_instructions,
         send_plugin_instructions,
diff --git a/src/common/input/keybinds.rs b/src/common/input/keybinds.rs
index 7b1e8779..6a14a182 100644
--- a/src/common/input/keybinds.rs
+++ b/src/common/input/keybinds.rs
@@ -1,268 +1,368 @@
 //! Mapping of inputs to sequences of actions.
+use std::collections::HashMap;
 
 use super::actions::{Action, Direction};
 
-use std::collections::HashMap;
-
+use serde::Deserialize;
 use strum::IntoEnumIterator;
 use zellij_tile::data::*;
 
-type Keybinds = HashMap<InputMode, ModeKeybinds>;
-type ModeKeybinds = HashMap<Key, Vec<Action>>;
+#[derive(Clone, Debug, PartialEq)]
+pub struct Keybinds(HashMap<InputMode, ModeKeybinds>);
+#[derive(Clone, Debug, Default, PartialEq)]
+pub struct ModeKeybinds(HashMap<Key, Vec<Action>>);
 
-/// Populates the default hashmap of keybinds.
-/// @@@khs26 What about an input config file?
-pub fn get_default_keybinds() -> Result<Keybinds, String> {
-    let mut defaults = Keybinds::new();
+/// Intermediate struct used for deserialisation
+#[derive(Clone, Debug, PartialEq, Deserialize)]
+pub struct KeybindsFromYaml(HashMap<InputMode, Vec<KeyActionFromYaml>>);
 
-    for mode in InputMode::iter() {
-        defaults.insert(mode, get_defaults_for_mode(&mode));
-    }
-
-    Ok(defaults)
+/// Intermediate struct used for deserialisation
+#[derive(Clone, Debug, PartialEq, Deserialize)]
+pub struct KeyActionFromYaml {
+    action: Vec<Action>,
+    key: Vec<Key>,
 }
 
-/// Returns the default keybinds for a givent [`InputMode`].
-fn get_defaults_for_mode(mode: &InputMode) -> ModeKeybinds {
-    let mut defaults = ModeKeybinds::new();
+impl Default for Keybinds {
+    fn default() -> Keybinds {
+        let mut defaults = Keybinds::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]);
+        for mode in InputMode::iter() {
+            defaults
+                .0
+                .insert(mode, Keybinds::get_defaults_for_mode(&mode));
         }
-        InputMode::Locked => {
-            defaults.insert(
-                Key::Ctrl('g'),
-                vec![Action::SwitchToMode(InputMode::Normal)],
-            );
+        defaults
+    }
+}
+
+impl Keybinds {
+    pub fn new() -> Keybinds {
+        Keybinds(HashMap::<InputMode, ModeKeybinds>::new())
+    }
+
+    pub fn get_default_keybinds_with_config(keybinds: Option<KeybindsFromYaml>) -> Keybinds {
+        let default_keybinds = Keybinds::default();
+        if let Some(keybinds) = keybinds {
+            default_keybinds.merge_keybinds(Keybinds::from(keybinds))
+        } else {
+            default_keybinds
         }
-        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)]);
+    /// Merges two Keybinds structs into one Keybinds struct
+    /// `other` overrides the ModeKeybinds of `self`.
+    fn merge_keybinds(&self, other: Keybinds) -> Keybinds {
+        let mut keybinds = Keybinds::new();
 
-            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)]);
+        for mode in InputMode::iter() {
+            let mut mode_keybinds = ModeKeybinds::new();
+            if let Some(keybind) = self.0.get(&mode) {
+                mode_keybinds.0.extend(keybind.0.clone());
+            };
+            if let Some(keybind) = other.0.get(&mode) {
+                mode_keybinds.0.extend(keybind.0.clone());
+            }
+            if !mode_keybinds.0.is_empty() {
+                keybinds.0.insert(mode, mode_keybinds);
+            }
         }
-        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)],
-            );
+        keybinds
+    }
 
-            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)]);
+    /// Returns the default keybinds for a given [`InputMode`].
+    fn get_defaults_for_mode(mode: &InputMode) -> ModeKeybinds {
+        let mut defaults = HashMap::new();
 
-            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)]);
+        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]);
+            }
+            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('p'), vec![Action::SwitchFocus(Direction::Right)]);
-            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]);
-        }
-        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::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::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::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)]);
+            }
+            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::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('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::Char('n'), vec![Action::NewTab]);
-            defaults.insert(Key::Char('x'), vec![Action::CloseTab]);
+                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('r'),
-                vec![
-                    Action::SwitchToMode(InputMode::RenameTab),
-                    Action::TabNameInput(vec![0]),
-                ],
-            );
-            defaults.insert(Key::Char('q'), vec![Action::Quit]);
-            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::Char('p'), vec![Action::SwitchFocus(Direction::Right)]);
+                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]);
             }
-        }
-        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)],
-            );
+            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::Char('j'), vec![Action::ScrollDown]);
-            defaults.insert(Key::Char('k'), vec![Action::ScrollUp]);
+                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::Down, vec![Action::ScrollDown]);
-            defaults.insert(Key::Up, vec![Action::ScrollUp]);
+                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::Char('q'), vec![Action::Quit]);
+                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())]);
+                }
+            }
+            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::Down, vec![Action::ScrollDown]);
+                defaults.insert(Key::Up, vec![Action::ScrollUp]);
+            }
+            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),
+                    ],
+                );
+            }
         }
-        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),
-                ],
-            );
+        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(
+        key: &Key,
+        input: Vec<u8>,
+        mode: &InputMode,
+        keybinds: &Keybinds,
+    ) -> Vec<Action> {
+        let mode_keybind_or_action = |action: Action| {
+            keybinds
+                .0
+                .get(mode)
+                .unwrap_or_else(|| unreachable!("Unrecognized mode: {:?}", mode))
+                .0
+                .get(key)
+                .cloned()
+                .unwrap_or_else(|| vec![action])
+        };
+        match *mode {
+            InputMode::Normal | InputMode::Locked => mode_keybind_or_action(Action::Write(input)),
+            InputMode::RenameTab => mode_keybind_or_action(Action::TabNameInput(input)),
+            _ => mode_keybind_or_action(Action::NoOp),
         }
     }
+}
+
+impl ModeKeybinds {
+    fn new() -> ModeKeybinds {
+        ModeKeybinds(HashMap::<Key, Vec<Action>>::new())
+    }
 
-    defaults
+    /// Merges `self` with `other`, if keys are the same, `other` overwrites.
+    fn merge(self, other: ModeKeybinds) -> ModeKeybinds {
+        let mut merged = self;
+        merged.0.extend(other.0);
+        merged
+    }
 }
 
-/// Converts a [`Key`] terminal event to a sequence of [`Action`]s according to the current
-/// [`InputMode`] and [`Keybinds`].
-pub fn key_to_actions(
-    key: &Key,
-    input: Vec<u8>,
-    mode: &InputMode,
-    keybinds: &Keybinds,
-) -> Vec<Action> {
-    let mode_keybind_or_action = |action: Action| {
+impl From<KeybindsFromYaml> for Keybinds {
+    fn from(keybinds_from_yaml: KeybindsFromYaml) -> Keybinds {
+        let mut keybinds = Keybinds::new();
+
+        for mode in InputMode::iter() {
+            let mut mode_keybinds = ModeKeybinds::new();
+            for key_action in keybinds_from_yaml.0.get(&mode).iter() {
+                for keybind in key_action.iter() {
+                    mode_keybinds = mode_keybinds.merge(ModeKeybinds::from(keybind.clone()));
+                }
+            }
+            keybinds.0.insert(mode, mode_keybinds);
+        }
         keybinds
-            .get(mode)
-            .unwrap_or_else(|| unreachable!("Unrecognized mode: {:?}", mode))
-            .get(key)
-            .cloned()
-            .unwrap_or_else(|| vec![action])
-    };
-    match *mode {
-        InputMode::Normal | InputMode::Locked => mode_keybind_or_action(Action::Write(input)),
-        InputMode::RenameTab => mode_keybind_or_action(Action::TabNameInput(input)),
-        _ => mode_keybind_or_action(Action::NoOp),
     }
 }
+
+/// For each `Key` assigned to `Action`s,
+/// map the `Action`s to the key
+impl From<KeyActionFromYaml> for ModeKeybinds {
+    fn from(key_action: KeyActionFromYaml) -> ModeKeybinds {
+        let keys = key_action.key;
+        let actions = key_action.action;
+
+        ModeKeybinds(
+            keys.into_iter()
+                .map(|k| (k, actions.clone()))
+                .collect::<HashMap<Key, Vec<Action>>>(),
+        )
+    }
+}
+
+// The unit test location.
+#[cfg(test)]
+#[path = "./unit/keybinds_test.rs"]
+mod keybinds_test;
diff --git a/src/common/input/mod.rs b/src/common/input/mod.rs
index 20c30dae..6589cac2 100644
--- a/src/common/input/mod.rs
+++ b/src/common/input/mod.rs
@@ -1,5 +1,6 @@
-//! The way terminal iput is handled.
+//! The way terminal input is handled.
 
 pub mod actions;
+pub mod config;
 pub mod handler;
 pub mod keybinds;
diff --git a/src/common/input/unit/keybinds_test.rs b/src/common/input/unit/keybinds_test.rs
new file mode 100644
index 00000000..6411d017
--- /dev/null
+++ b/src/common/input/unit/keybinds_test.rs
@@ -0,0 +1,135 @@
+use super::super::actions::*;
+use super::super::keybinds::*;
+use zellij_tile::data::Key;
+
+#[test]
+fn merge_keybinds_merges_different_keys() {
+    let mut mode_keybinds_self = ModeKeybinds::new();
+    mode_keybinds_self.0.insert(Key::F(1), vec![Action::NoOp]);
+    let mut mode_keybinds_other = ModeKeybinds::new();
+    mode_keybinds_other
+        .0
+        .insert(Key::Backspace, vec![Action::NoOp]);
+
+    let mut mode_keybinds_expected = ModeKeybinds::new();
+    mode_keybinds_expected
+        .0
+        .insert(Key::F(1), vec![Action::NoOp]);
+    mode_keybinds_expected
+        .0
+        .insert(Key::Backspace, vec![Action::NoOp]);
+
+    let mode_keybinds_merged = mode_keybinds_self.merge(mode_keybinds_other);
+
+    assert_eq!(mode_keybinds_expected, mode_keybinds_merged);
+}
+
+#[test]
+fn merge_mode_keybinds_overwrites_same_keys() {
+    let mut mode_keybinds_self = ModeKeybinds::new();
+    mode_keybinds_self.0.insert(Key::F(1), vec![Action::NoOp]);
+    let mut mode_keybinds_other = ModeKeybinds::new();
+    mode_keybinds_other
+        .0
+        .insert(Key::F(1), vec![Action::GoToTab(1)]);
+
+    let mut mode_keybinds_expected = ModeKeybinds::new();
+    mode_keybinds_expected
+        .0
+        .insert(Key::F(1), vec![Action::GoToTab(1)]);
+
+    let mode_keybinds_merged = mode_keybinds_self.merge(mode_keybinds_other);
+
+    assert_eq!(mode_keybinds_expected, mode_keybinds_merged);
+}
+
+#[test]
+fn merge_keybinds_merges() {
+    let mut mode_keybinds_self = ModeKeybinds::new();
+    mode_keybinds_self.0.insert(Key::F(1), vec![Action::NoOp]);
+    let mut mode_keybinds_other = ModeKeybinds::new();
+    mode_keybinds_other
+        .0
+        .insert(Key::Backspace, vec![Action::NoOp]);
+    let mut keybinds_self = Keybinds::new();
+    keybinds_self
+        .0
+        .insert(InputMode::Normal, mode_keybinds_self.clone());
+    let mut keybinds_other = Keybinds::new();
+    keybinds_other
+        .0
+        .insert(InputMode::Resize, mode_keybinds_other.clone());
+    let mut keybinds_expected = Keybinds::new();
+    keybinds_expected
+        .0
+        .insert(InputMode::Normal, mode_keybinds_self);
+    keybinds_expected
+        .0
+        .insert(InputMode::Resize, mode_keybinds_other);
+
+    assert_eq!(
+        keybinds_expected,
+        keybinds_self.merge_keybinds(keybinds_other)
+    )
+}
+
+#[test]
+fn merge_keybinds_overwrites_same_keys() {
+    let mut mode_keybinds_self = ModeKeybinds::new();
+    mode_keybinds_self.0.insert(Key::F(1), vec![Action::NoOp]);
+    mode_keybinds_self.0.insert(Key::F(2), vec![Action::NoOp]);
+    mode_keybinds_self.0.insert(Key::F(3), vec![Action::NoOp]);
+    let mut mode_keybinds_other = ModeKeybinds::new();
+    mode_keybinds_other
+        .0
+        .insert(Key::F(1), vec![Action::GoToTab(1)]);
+    mode_keybinds_other
+        .0
+        .insert(Key::F(2), vec![Action::GoToTab(2)]);
+    mode_keybinds_other
+        .0
+        .insert(Key::F(3), vec![Action::GoToTab(3)]);
+    let mut keybinds_self = Keybinds::new();
+    keybinds_self
+        .0
+        .insert(InputMode::Normal, mode_keybinds_self.clone());
+    let mut keybinds_other = Keybinds::new();
+    keybinds_other
+        .0
+        .insert(InputMode::Normal, mode_keybinds_other.clone());
+    let mut keybinds_expected = Keybinds::new();
+    keybinds_expected
+        .0
+        .insert(InputMode::Normal, mode_keybinds_other);
+
+    assert_eq!(
+        keybinds_expected,
+        keybinds_self.merge_keybinds(keybinds_other)
+    )
+}
+
+#[test]
+fn from_keyaction_from_yaml_to_mode_keybindings() {
+    let actions = vec![Action::NoOp, Action::GoToTab(1)];
+    let keyaction = KeyActionFromYaml {
+        action: actions.clone(),
+        key: vec![Key::F(1), Key::Backspace, Key::Char('t')],
+    };
+
+    let mut expected = ModeKeybinds::new();
+    expected.0.insert(Key::F(1), actions.clone());
+    expected.0.insert(Key::Backspace, actions.clone());
+    expected.0.insert(Key::Char('t'), actions);
+
+    assert_eq!(expected, ModeKeybinds::from(keyaction));
+}
+
+//#[test]
+//fn from_keybinds_from_yaml_to_keybinds(){
+//let mut keybinds_from_yaml = KeybindsFromYaml(HashMap<InputMode, Vec<KeyActionFromYaml>>);
+//let actions = vec![Action::NoOp, Action::GoToTab(1), ];
+//let keyaction = KeyActionFromYaml {
+//action : actions.clone(),
+//key : vec![ Key::F(1), Key::Backspace , Key::Char('t'), ],
+//};
+//}
diff --git a/src/common/mod.rs b/src/common/mod.rs
index 87d8cd94..e9b74d58 100644
--- a/src/common/mod.rs
+++ b/src/common/mod.rs
@@ -22,6 +22,7 @@ use std::{
 };
 
 use crate::cli::CliArgs;
+use crate::common::input::config::Config;
 use crate::layout::Layout;
 use crate::panes::PaneId;
 use command_is_executing::CommandIsExecuting;
@@ -125,6 +126,13 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs) {
         .write(take_snapshot.as_bytes())
         .unwrap();
 
+    let config = Config::from_cli_config(opts.config)
+        .map_err(|e| {
+            eprintln!("There was an error in the config file:\n{}", e);
+            std::process::exit(1);
+        })
+        .unwrap();
+
     let command_is_executing = CommandIsExecuting::new();
 
     let full_screen_ws = os_input.get_terminal_size_using_fd(0);
@@ -590,9 +598,11 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs) {
             let send_pty_instructions = send_pty_instructions.clone();
             let send_plugin_instructions = send_plugin_instructions.clone();
             let os_input = os_input.clone();
+            let config = config;
             move || {
                 input_loop(
                     os_input,
+                    config,
                     command_is_executing,
                     send_screen_instructions,
                     send_pty_instructions,