Fix for non-existing data directory

Also respect XDG_DATA_HOME on unix systems instead of using hardcoded
path.

Cargo.lock

@@ -570,6 +570,15 @@ dependencies = [
  "dirs-sys",
 ]
 
+[[package]]
+name = "dirs"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30baa043103c9d0c2a57cf537cc2f35623889dc0d405e6c3cccfadbc81c71309"
+dependencies = [
+ "dirs-sys",
+]
+
 [[package]]
 name = "dirs-sys"
 version = "0.3.6"
@@ -1325,7 +1334,7 @@ dependencies = [
  "cfg-if 0.1.10",
  "clap",
  "derive-new",
- "dirs",
+ "dirs 2.0.2",
  "euclid",
  "flexi_logger",
  "futures 0.3.17",
@@ -1353,6 +1362,7 @@ dependencies = [
  "winapi",
  "winit 0.24.0 (git+https://github.com/neovide/winit?branch=new-keyboard-all)",
  "winres",
+ "xdg",
 ]
 
 [[package]]
@@ -2673,9 +2683,12 @@ dependencies = [
 
 [[package]]
 name = "xdg"
-version = "2.2.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d089681aa106a86fade1b0128fb5daf07d5867a509ab036d99988dec80429a57"
+checksum = "3a23fe958c70412687039c86f578938b4a0bb50ec788e96bce4d6ab00ddd5803"
+dependencies = [
+ "dirs 3.0.2",
+]
 
 [[package]]
 name = "xkbcommon-dl"

Cargo.toml

@@ -44,6 +44,7 @@ winit = { git = "https://github.com/neovide/winit", branch = "new-keyboard-all"
 gl = "0.14.0"
 swash = "0.1.4"
 clap="2.33.3"
+xdg="2.4.0"
 
 [dev-dependencies]
 mockall = "0.7.0"

src/settings/window_geometry.rs

@@ -2,20 +2,32 @@ use crate::settings::SETTINGS;
 use crate::utils::Dimensions;
 use crate::window::WindowSettings;
 use std::path::PathBuf;
-
 #[cfg(unix)]
-const SETTINGS_PATH: &str = ".local/share/nvim/neovide-settings.json";
-#[cfg(windows)]
-const SETTINGS_PATH: &str = "AppData/Local/nvim-data/neovide-settings.json";
+use xdg;
+
+const SETTINGS_FILE: &str = "neovide-settings.json";
 
 pub const DEFAULT_WINDOW_GEOMETRY: Dimensions = Dimensions {
     width: 100,
     height: 50,
 };
 
+#[cfg(windows)]
 fn neovim_std_datapath() -> PathBuf {
-    let mut settings_path = dirs::home_dir().unwrap();
-    settings_path.push(SETTINGS_PATH);
+    let mut data_path = dirs::home_dir().unwrap();
+    data_path.push("AppData/local/nvim-data");
+    data_path
+}
+
+#[cfg(unix)]
+fn neovim_std_datapath() -> PathBuf {
+    let xdg_dirs = xdg::BaseDirectories::with_prefix("nvim").unwrap();
+    xdg_dirs.get_data_home()
+}
+
+fn settings_path() -> PathBuf {
+    let mut settings_path = neovim_std_datapath();
+    settings_path.push(SETTINGS_FILE);
     settings_path
 }
 
@@ -42,7 +54,8 @@ pub fn maybe_save_window_size(grid_size: Option<Dimensions>) {
         DEFAULT_WINDOW_GEOMETRY
     };
 
-    let settings_path = neovim_std_datapath();
+    let settings_path = settings_path();
+    std::fs::create_dir_all(neovim_std_datapath()).unwrap();
     let json = serde_json::to_string(&saved_window_size).unwrap();
     log::debug!("Saved Window Size: {}", json);
     std::fs::write(settings_path, json).unwrap();