General code for load/store settings

src/dirs.rs

@@ -0,0 +1,30 @@
+use std;
+use std::path::PathBuf;
+
+pub fn get_app_config_dir_create() -> Result<PathBuf, String> {
+    let config_dir = get_app_config_dir()?;
+
+    std::fs::create_dir_all(&config_dir)
+        .map_err(|e| format!("{}", e))?;
+
+    Ok(config_dir)
+}
+
+fn get_app_config_dir() -> Result<PathBuf, String> {
+    let mut config_dir = get_xdg_config_dir()?;
+
+    config_dir.push("nvim-gtk");
+
+    Ok(config_dir)
+}
+
+fn get_xdg_config_dir() -> Result<PathBuf, String> {
+    if let Ok(config_path) = std::env::var("XDG_CONFIG_HOME") {
+        return Ok(PathBuf::from(config_path));
+    }
+
+    let mut home_dir = std::env::home_dir()
+        .ok_or("Impossible to get your home dir!")?;
+    home_dir.push(".config");
+    Ok(home_dir)
+}

src/main.rs

@@ -18,12 +18,14 @@ extern crate log;
 extern crate env_logger;
 extern crate htmlescape;
 
+extern crate serde;
 #[macro_use]
 extern crate serde_derive;
 extern crate toml;
 
 mod sys;
 
+mod dirs;
 mod color;
 mod value;
 mod mode;

src/plug_manager/store.rs

@@ -1,9 +1,40 @@
-pub struct Store {
-    
-}
+use toml;
+
+use settings::SettingsLoader;
+
+pub struct Store {}
 
 impl Store {
     pub fn new() -> Self {
-        Store {  }
+        Store {}
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+struct Settings {
+    plugs: Vec<PlugInfo>,
+}
+
+impl SettingsLoader for Settings {
+    const SETTINGS_FILE: &'static str = "plugs.toml";
+
+    fn empty() -> Self {
+        Settings { plugs: vec![] }
+    }
+
+    fn from_str(s: &str) -> Result<Self, String> {
+        toml::from_str(&s).map_err(|e| format!("{}", e))
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct PlugInfo {
+    name: String,
+    url: String,
+}
+
+impl PlugInfo {
+    pub fn new(name: String, url: String) -> Self {
+        PlugInfo { name, url }
     }
 }

src/project.rs

@@ -532,14 +532,9 @@ impl Entry {
 
 // ----- Store / Load settings
 //
-use std::path::PathBuf;
-use std::fs::File;
-use std::io::prelude::*;
-use std;
+use settings::SettingsLoader;
 use toml;
 
-const PROJECTS_SETTINGS_FILE: &str = "projects.toml";
-
 #[derive(Serialize, Deserialize)]
 struct ProjectSettings {
     projects: Vec<ProjectEntrySettings>,
@@ -564,87 +559,21 @@ impl ProjectEntrySettings {
     }
 }
 
-impl ProjectSettings {
-    fn new(projects: Vec<ProjectEntrySettings>) -> ProjectSettings {
-        ProjectSettings { projects }
-    }
+impl SettingsLoader for ProjectSettings {
+    const SETTINGS_FILE: &'static str = "projects.toml";
 
     fn empty() -> ProjectSettings {
         ProjectSettings { projects: vec![] }
     }
 
-    fn load_from_file(path: &Path) -> Result<ProjectSettings, String> {
-        if path.exists() {
-            let mut file = File::open(path).map_err(|e| format!("{}", e))?;
-            let mut contents = String::new();
-            file.read_to_string(&mut contents)
-                .map_err(|e| format!("{}", e))?;
-            toml::from_str(&contents).map_err(|e| format!("{}", e))
-        } else {
-            Ok(ProjectSettings::empty())
-        }
-    }
-
-    fn load_err() -> Result<ProjectSettings, String> {
-        let mut toml_path = get_app_config_dir_create()?;
-        toml_path.push(PROJECTS_SETTINGS_FILE);
-        ProjectSettings::load_from_file(&toml_path)
-    }
-
-    fn load() -> ProjectSettings {
-        match ProjectSettings::load_err() {
-            Ok(settings) => settings,
-            Err(e) => {
-                println!("{}", e);
-                ProjectSettings::empty()
-            }
-        }
-    }
-
-    fn save_err(&self) -> Result<(), String> {
-        let mut toml_path = get_app_config_dir_create()?;
-        toml_path.push(PROJECTS_SETTINGS_FILE);
-        let mut file = File::create(toml_path).map_err(|e| format!("{}", e))?;
-
-        let contents = toml::to_vec(self).map_err(|e| format!("{}", e))?;
-
-        file.write_all(&contents).map_err(|e| format!("{}", e))?;
-
-        Ok(())
-    }
-
-    pub fn save(&self) {
-        match self.save_err() {
-            Ok(()) => (),
-            Err(e) => println!("{}", e),
-        }
+    fn from_str(s: &str) -> Result<Self, String> {
+        toml::from_str(&s).map_err(|e| format!("{}", e))
     }
 }
 
-fn get_app_config_dir_create() -> Result<PathBuf, String> {
-    let config_dir = get_app_config_dir()?;
-
-    std::fs::create_dir_all(&config_dir)
-        .map_err(|e| format!("{}", e))?;
-
-    Ok(config_dir)
-}
-
-fn get_app_config_dir() -> Result<PathBuf, String> {
-    let mut config_dir = get_xdg_config_dir()?;
-
-    config_dir.push("nvim-gtk");
-
-    Ok(config_dir)
-}
-
-fn get_xdg_config_dir() -> Result<PathBuf, String> {
-    if let Ok(config_path) = std::env::var("XDG_CONFIG_HOME") {
-        return Ok(PathBuf::from(config_path));
+impl ProjectSettings {
+    fn new(projects: Vec<ProjectEntrySettings>) -> ProjectSettings {
+        ProjectSettings { projects }
     }
-
-    let mut home_dir = std::env::home_dir()
-        .ok_or("Impossible to get your home dir!")?;
-    home_dir.push(".config");
-    Ok(home_dir)
 }
+

src/settings.rs

@@ -101,3 +101,69 @@ fn monospace_font_changed(mut shell: &mut Shell, state: &mut State) {
         state.update_font(&mut shell);
     }
 }
+
+use std::path::Path;
+use std::fs::File;
+use std::io::prelude::*;
+
+use toml;
+use serde;
+
+use dirs;
+
+pub trait SettingsLoader: Sized + serde::Serialize {
+    const SETTINGS_FILE: &'static str;
+
+    fn empty() -> Self;
+
+    fn from_str(s: &str) -> Result<Self, String>;
+
+    fn load() -> Self {
+        match load_err() {
+            Ok(settings) => settings,
+            Err(e) => {
+                println!("{}", e);
+                Self::empty()
+            }
+        }
+    }
+
+    fn save(&self) {
+        match save_err(self) {
+            Ok(()) => (),
+            Err(e) => println!("{}", e),
+        }
+    }
+}
+
+fn load_from_file<T: SettingsLoader>(path: &Path) -> Result<T, String> {
+    if path.exists() {
+        let mut file = File::open(path).map_err(|e| format!("{}", e))?;
+        let mut contents = String::new();
+        file.read_to_string(&mut contents).map_err(
+            |e| format!("{}", e),
+        )?;
+        T::from_str(&contents)
+    } else {
+        Ok(T::empty())
+    }
+}
+
+fn load_err<T: SettingsLoader>() -> Result<T, String> {
+    let mut toml_path = dirs::get_app_config_dir_create()?;
+    toml_path.push(T::SETTINGS_FILE);
+    load_from_file(&toml_path)
+}
+
+
+fn save_err<T: SettingsLoader>(sl: &T) -> Result<(), String> {
+    let mut toml_path = dirs::get_app_config_dir_create()?;
+    toml_path.push(T::SETTINGS_FILE);
+    let mut file = File::create(toml_path).map_err(|e| format!("{}", e))?;
+
+    let contents = toml::to_vec::<T>(sl).map_err(|e| format!("{}", e))?;
+
+    file.write_all(&contents).map_err(|e| format!("{}", e))?;
+
+    Ok(())
+}