Fix a few clippy warnings (#59)

src/app.rs

@@ -7,7 +7,6 @@ use crate::{
     widgets,
 };
 use anyhow::*;
-use crossbeam_channel;
 use debug_stub_derive::*;
 use gdk::WindowExt;
 use gtk::{ContainerExt, CssProviderExt, GtkWindowExt, StyleContextExt, WidgetExt};

src/config/xml_ext.rs

@@ -86,7 +86,7 @@ impl<'a, 'b> XmlNode<'a, 'b> {
         match self {
             XmlNode::Text(x) => x.0,
             XmlNode::Element(x) => x.0,
-            XmlNode::Ignored(x) => x.clone(),
+            XmlNode::Ignored(x) => *x,
         }
     }
 }
@@ -123,7 +123,7 @@ impl<'a, 'b> fmt::Display for XmlElement<'a, 'b> {
             .map(|x| x.lines().map(|line| format!("  {}", line)).join("\n"))
             .join("\n");
 
-        if children.len() == 0 {
+        if children.is_empty() {
             write!(f, "{}</{}>", self.as_tag_string(), self.tag_name())
         } else {
             write!(f, "{}\n{}\n</{}>", self.as_tag_string(), children, self.tag_name())

src/main.rs

@@ -10,8 +10,6 @@ extern crate gtk;
 
 use anyhow::*;
 
-use log;
-use pretty_env_logger;
 use std::{os::unix::net, path::PathBuf};
 use structopt::StructOpt;
 
@@ -33,12 +31,12 @@ lazy_static::lazy_static! {
         .join("eww-server");
 
     pub static ref CONFIG_DIR: std::path::PathBuf = std::env::var("XDG_CONFIG_HOME")
-        .map(|v| PathBuf::from(v))
+        .map(PathBuf::from)
         .unwrap_or_else(|_| PathBuf::from(std::env::var("HOME").unwrap()).join(".config"))
         .join("eww");
 
     pub static ref LOG_FILE: std::path::PathBuf = std::env::var("XDG_CACHE_HOME")
-        .map(|v| PathBuf::from(v))
+        .map(PathBuf::from)
         .unwrap_or_else(|_| PathBuf::from(std::env::var("HOME").unwrap()).join(".cache"))
         .join("eww.log");
 }
@@ -56,17 +54,17 @@ fn main() {
             opts::Action::WithServer(action) => {
                 log::info!("Trying to find server process");
                 if let Ok(stream) = net::UnixStream::connect(&*IPC_SOCKET_PATH) {
+
                     client::forward_command_to_server(stream, action).context("Error while forwarding command to server")?;
-                } else {
-                    if action.needs_server_running() {
+                } else if action.needs_server_running() {
                     println!("No eww server running");
+
                 } else {
                     log::info!("No server running, initializing server...");
                     server::initialize_server(opts.should_detach, action)?;
                 }
             }
         }
-        }
     };
 
     if let Err(e) = result {

src/opts.rs

@@ -93,9 +93,7 @@ fn parse_var_update_arg(s: &str) -> Result<(VarName, PrimitiveValue)> {
 impl ActionWithServer {
     pub fn into_eww_command(self) -> (app::EwwCommand, Option<crossbeam_channel::Receiver<String>>) {
         let command = match self {
-            ActionWithServer::Update { mappings } => {
-                app::EwwCommand::UpdateVars(mappings.into_iter().map(|x| x.into()).collect())
-            }
+            ActionWithServer::Update { mappings } => app::EwwCommand::UpdateVars(mappings.into_iter().collect()),
             ActionWithServer::OpenWindow {
                 window_name,
                 pos,

src/script_var_handler.rs

@@ -10,9 +10,9 @@ use crate::{
 };
 use anyhow::*;
 use app::EwwCommand;
+
+use itertools::Itertools;
 use dashmap::DashMap;
-use glib;
-use scheduled_executor;
 use std::io::BufRead;
 
 use self::script_var_process::ScriptVarProcess;

src/server.rs

@@ -1,6 +1,5 @@
 use crate::{app, config, eww_state::*, opts, script_var_handler, try_logging_errors, util};
 use anyhow::*;
-use log;
 use std::{
     collections::HashMap,
     io::Write,
@@ -25,8 +24,7 @@ pub fn initialize_server(should_detach: bool, action: opts::ActionWithServer) ->
     let config_dir = config_file_path
         .parent()
         .context("config file did not have a parent?!")?
-        .to_owned()
-        .to_path_buf();
+        .to_owned();
     let scss_file_path = config_dir.join("eww.scss");
 
     log::info!("reading configuration from {:?}", &config_file_path);
@@ -39,7 +37,7 @@ pub fn initialize_server(should_detach: bool, action: opts::ActionWithServer) ->
     let script_var_handler = script_var_handler::ScriptVarHandler::new(evt_send.clone())?;
 
     let mut app = app::App {
-        eww_state: EwwState::from_default_vars(eww_config.generate_initial_state()?.clone()),
+        eww_state: EwwState::from_default_vars(eww_config.generate_initial_state()?),
         eww_config,
         windows: HashMap::new(),
         css_provider: gtk::CssProvider::new(),
@@ -68,7 +66,7 @@ pub fn initialize_server(should_detach: bool, action: opts::ActionWithServer) ->
     }
 
     run_server_thread(evt_send.clone())?;
-    let _hotwatch = run_filewatch_thread(&config_file_path, &scss_file_path, evt_send.clone())?;
+    let _hotwatch = run_filewatch_thread(&config_file_path, &scss_file_path, evt_send)?;
 
     evt_recv.attach(None, move |msg| {
         app.handle_command(msg);

src/util.rs

@@ -1,6 +1,5 @@
 use anyhow::*;
 use extend::ext;
-use grass;
 use itertools::Itertools;
 use std::path::Path;
 

src/value/attr_value.rs

@@ -86,8 +86,7 @@ impl AttrValue {
                     curly_count = 2;
                     varref.push(c);
                 }
-            } else {
-                if c == '{' {
+            } else if c == '{' {
                 curly_count += 1;
                 if curly_count == 2 {
                     if !cur_word.is_empty() {
@@ -103,11 +102,10 @@ impl AttrValue {
                 cur_word.push(c);
             }
         }
-        }
         if let Some(unfinished_varref) = cur_varref.take() {
             elements.push(AttrValueElement::primitive(unfinished_varref));
         } else if !cur_word.is_empty() {
-            elements.push(AttrValueElement::primitive(cur_word.to_owned()));
+            elements.push(AttrValueElement::primitive(cur_word));
         }
         AttrValue(elements)
     }

src/value/primitive.rs

@@ -1,5 +1,4 @@
 use anyhow::*;
-use derive_more;
 use itertools::Itertools;
 use serde::{Deserialize, Serialize};
 use std::{convert::TryFrom, fmt, iter::FromIterator};
@@ -63,7 +62,7 @@ impl From<&str> for PrimitiveValue {
 
 impl PrimitiveValue {
     pub fn from_string(s: String) -> Self {
-        PrimitiveValue(s.to_string())
+        PrimitiveValue(s)
     }
 
     pub fn into_inner(self) -> String {

src/widgets/mod.rs

@@ -146,10 +146,12 @@ fn build_builtin_gtk_widget(
         }
     }
 
-    gtk_widget.dynamic_cast_ref().map(|w| resolve_range_attrs(&mut bargs, &w));
-    gtk_widget
-        .dynamic_cast_ref()
-        .map(|w| resolve_orientable_attrs(&mut bargs, &w));
+    if let Some(w) = gtk_widget.dynamic_cast_ref() {
+        resolve_range_attrs(&mut bargs, &w)
+    }
+    if let Some(w) = gtk_widget.dynamic_cast_ref() {
+        resolve_orientable_attrs(&mut bargs, &w)
+    };
     resolve_widget_attrs(&mut bargs, &gtk_widget);
 
     if !bargs.unhandled_attrs.is_empty() {

src/widgets/widget_definitions.rs

@@ -1,7 +1,6 @@
 use super::{run_command, BuilderArgs};
 use crate::{config, eww_state, resolve_block, value::AttrValue};
 use anyhow::*;
-use gdk_pixbuf;
 use gtk::{prelude::*, ImageExt};
 use std::{cell::RefCell, rc::Rc};