Add a clean config option

Add a clean config option, which
makes zellij not look for a default
configuration file.

6 files changed, 118 insertions, 25 deletions

diff --git a/assets/completions/_zellij b/assets/completions/_zellij
index cd8dce56..8b89db14 100644
--- a/assets/completions/_zellij
+++ b/assets/completions/_zellij
@@ -22,8 +22,6 @@ _zellij() {
 '--max-panes=[Maximum panes on screen, caution: opening more panes will close old ones]' \
 '-l+[Path to a layout yaml file]' \
 '--layout=[Path to a layout yaml file]' \
-'-c+[Path to the configuration yaml file]' \
-'--config=[Path to the configuration yaml file]' \
 '-m[Send "move focused pane" to active zellij session]' \
 '--move-focus[Send "move focused pane" to active zellij session]' \
 '-d[]' \
@@ -32,16 +30,59 @@ _zellij() {
 '--help[Prints help information]' \
 '-V[Prints version information]' \
 '--version[Prints version information]' \
+":: :_zellij_commands" \
+"*::: :->zellij" \
 && ret=0
-    
+    case $state in
+    (zellij)
+        words=($line[1] "${words[@]}")
+        (( CURRENT += 1 ))
+        curcontext="${curcontext%:*:*}:zellij-command-$line[1]:"
+        case $line[1] in
+            (config)
+_arguments "${_arguments_options[@]}" \
+'--clean[Disables loading of configuration file at default location]' \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'::path:_files' \
+&& ret=0
+;;
+(help)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+&& ret=0
+;;
+        esac
+    ;;
+esac
 }
 
 (( $+functions[_zellij_commands] )) ||
 _zellij_commands() {
     local commands; commands=(
-        
+        "config:Path to the configuration yaml file" \
+"help:Prints this message or the help of the given subcommand(s)" \
     )
     _describe -t commands 'zellij commands' commands "$@"
 }
+(( $+functions[_zellij__config_commands] )) ||
+_zellij__config_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'zellij config commands' commands "$@"
+}
+(( $+functions[_zellij__help_commands] )) ||
+_zellij__help_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'zellij help commands' commands "$@"
+}
 
 _zellij "$@"
\ No newline at end of file
diff --git a/assets/completions/zellij.bash b/assets/completions/zellij.bash
index 0ede5cce..549b1e9f 100644
--- a/assets/completions/zellij.bash
+++ b/assets/completions/zellij.bash
@@ -13,6 +13,12 @@ _zellij() {
                 cmd="zellij"
                 ;;
             
+            config)
+                cmd+="__config"
+                ;;
+            help)
+                cmd+="__help"
+                ;;
             *)
                 ;;
         esac
@@ -20,7 +26,7 @@ _zellij() {
 
     case "${cmd}" in
         zellij)
-            opts=" -m -d -h -V -s -o -l -c  --move-focus --debug --help --version --split --open-file --max-panes --layout --config  "
+            opts=" -m -d -h -V -s -o -l  --move-focus --debug --help --version --split --open-file --max-panes --layout   config help"
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 1 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -55,14 +61,37 @@ _zellij() {
                     COMPREPLY=($(compgen -f "${cur}"))
                     return 0
                     ;;
-                --config)
-                    COMPREPLY=($(compgen -f "${cur}"))
-                    return 0
+                *)
+                    COMPREPLY=()
                     ;;
-                    -c)
-                    COMPREPLY=($(compgen -f "${cur}"))
-                    return 0
+            esac
+            COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
+            return 0
+            ;;
+        
+        zellij__config)
+            opts=" -h -V  --clean --help --version  <path> "
+            if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
+                COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
+                return 0
+            fi
+            case "${prev}" in
+                
+                *)
+                    COMPREPLY=()
                     ;;
+            esac
+            COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
+            return 0
+            ;;
+        zellij__help)
+            opts=" -h -V  --help --version  "
+            if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
+                COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
+                return 0
+            fi
+            case "${prev}" in
+                
                 *)
                     COMPREPLY=()
                     ;;
@@ -70,7 +99,6 @@ _zellij() {
             COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
             return 0
             ;;
-        
     esac
 }
 
diff --git a/assets/completions/zellij.fish b/assets/completions/zellij.fish
index eaba9fa4..36bab192 100644
--- a/assets/completions/zellij.fish
+++ b/assets/completions/zellij.fish
@@ -2,8 +2,14 @@ complete -c zellij -n "__fish_use_subcommand" -s s -l split -d 'Send "split (dir
 complete -c zellij -n "__fish_use_subcommand" -s o -l open-file -d 'Send "open file in new pane" to active zellij session'
 complete -c zellij -n "__fish_use_subcommand" -l max-panes -d 'Maximum panes on screen, caution: opening more panes will close old ones'
 complete -c zellij -n "__fish_use_subcommand" -s l -l layout -d 'Path to a layout yaml file'
-complete -c zellij -n "__fish_use_subcommand" -s c -l config -d 'Path to the configuration yaml file'
 complete -c zellij -n "__fish_use_subcommand" -s m -l move-focus -d 'Send "move focused pane" to active zellij session'
 complete -c zellij -n "__fish_use_subcommand" -s d -l debug
 complete -c zellij -n "__fish_use_subcommand" -s h -l help -d 'Prints help information'
 complete -c zellij -n "__fish_use_subcommand" -s V -l version -d 'Prints version information'
+complete -c zellij -n "__fish_use_subcommand" -f -a "config" -d 'Path to the configuration yaml file'
+complete -c zellij -n "__fish_use_subcommand" -f -a "help" -d 'Prints this message or the help of the given subcommand(s)'
+complete -c zellij -n "__fish_seen_subcommand_from config" -l clean -d 'Disables loading of configuration file at default location'
+complete -c zellij -n "__fish_seen_subcommand_from config" -s h -l help -d 'Prints help information'
+complete -c zellij -n "__fish_seen_subcommand_from config" -s V -l version -d 'Prints version information'
+complete -c zellij -n "__fish_seen_subcommand_from help" -s h -l help -d 'Prints help information'
+complete -c zellij -n "__fish_seen_subcommand_from help" -s V -l version -d 'Prints version information'
diff --git a/src/cli.rs b/src/cli.rs
index 67a92196..740879f0 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, Debug)]
 #[structopt(name = "zellij")]
 pub struct CliArgs {
     /// Send "split (direction h == horizontal / v == vertical)" to active zellij session
@@ -24,10 +24,20 @@ pub struct CliArgs {
     #[structopt(short, long)]
     pub layout: Option<PathBuf>,
 
-    /// Path to the configuration yaml file
-    #[structopt(short, long)]
-    pub config: 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
+    Config {
+        path: Option<PathBuf>,
+        #[structopt(long)]
+        /// Disables loading of configuration file at default location
+        clean: bool,
+    },
+}
diff --git a/src/common/input/config.rs b/src/common/input/config.rs
index d9d1f784..668b4106 100644
--- a/src/common/input/config.rs
+++ b/src/common/input/config.rs
@@ -6,10 +6,13 @@ 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 {
@@ -41,7 +44,7 @@ impl Default for Config {
 
 impl Config {
     /// Uses defaults, but lets config override them.
-    pub fn from_yaml(yaml_config: &str) -> Result<Config, ConfigError> {
+    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 })
@@ -49,7 +52,7 @@ impl Config {
 
     /// Deserializes from given path.
     #[allow(unused_must_use)]
-    pub fn new(path: &Path) -> Result<Config, ConfigError> {
+    pub fn new(path: &Path) -> ConfigResult {
         match File::open(path) {
             Ok(mut file) => {
                 let mut yaml_config = String::new();
@@ -57,15 +60,13 @@ impl Config {
                     .map_err(|e| ConfigError::IoPath(e, path.to_path_buf()))?;
                 Ok(Config::from_yaml(&yaml_config)?)
             }
-            Err(_) => {
-                Ok(Config::default())
-            }
+            Err(_) => Ok(Config::default()),
         }
     }
 
     /// Deserializes the config from an optional path, or a platform specific path,
     /// merges the default configuration - options take precedence.
-    pub fn from_option_or_default(option: Option<PathBuf>) -> Result<Config, ConfigError> {
+    fn from_option_or_default(option: Option<PathBuf>) -> ConfigResult {
         if let Some(config_path) = option {
             Ok(Config::new(&config_path)?)
         } else {
@@ -75,6 +76,14 @@ impl Config {
             Ok(Config::new(&config_path)?)
         }
     }
+
+    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, .. }) => Ok(Config::from_option_or_default(path)?),
+            None => Ok(Config::default()),
+        }
+    }
 }
 
 impl Display for ConfigError {
diff --git a/src/common/mod.rs b/src/common/mod.rs
index 02e75f98..777b615f 100644
--- a/src/common/mod.rs
+++ b/src/common/mod.rs
@@ -169,8 +169,7 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs) {
 
     let mut app_state = AppState::default();
 
-    #[allow(unused_must_use)]
-    let config = Config::from_option_or_default(opts.config)
+    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);