add new() method for Account and Config

src/config/model.rs

@@ -50,6 +50,30 @@ pub struct Account {
 }
 
 impl Account {
+    pub fn new() -> Self {
+        Self {
+            name: None,
+            downloads_dir: None,
+            signature: None,
+            default_page_size: None,
+            default: None,
+            email: String::new(),
+            watch_cmds: None,
+            imap_host: String::new(),
+            imap_port: 0,
+            imap_starttls: None,
+            imap_insecure: None,
+            imap_login: String::new(),
+            imap_passwd_cmd: String::new(),
+            smtp_host: String::new(),
+            smtp_port: 0,
+            smtp_starttls: None,
+            smtp_insecure: None,
+            smtp_login: String::new(),
+            smtp_passwd_cmd: String::new(),
+        }
+    }
+
     pub fn imap_addr(&self) -> (&str, u16) {
         debug!("host: {}", self.imap_host);
         debug!("port: {}", self.imap_port);
@@ -125,6 +149,18 @@ pub struct Config {
 }
 
 impl Config {
+    pub fn new() -> Self {
+        Self {
+            name: String::new(),
+            downloads_dir: None,
+            notify_cmd: None,
+            signature: None,
+            default_page_size: None,
+            watch_cmds: None,
+            accounts: HashMap::new(),
+        }
+    }
+
     fn path_from_xdg() -> Result<PathBuf> {
         let path =
             env::var("XDG_CONFIG_HOME").chain_err(|| "Cannot find `XDG_CONFIG_HOME` env var")?;
@@ -165,7 +201,7 @@ impl Config {
         Ok(path)
     }
 
-    pub fn new(path: Option<PathBuf>) -> Result<Self> {
+    pub fn from_path(path: Option<PathBuf>) -> Result<Self> {
         let path = match path {
             Some(path) => path,
             None => Self::path_from_xdg()