Make cachedir platform specific

Cargo.toml

@@ -6,25 +6,25 @@ edition = "2021"
 [dependencies]
 # xilem_core = { path = "../xilem/xilem/crates/xilem_core" }
 xilem_core = { git = "https://github.com/Philipp-M/xilem.git", branch = "personal" }
+anyhow = "1.0"
+bitflags = "2.4"
 crossterm = "0.27"
+directories = "5.0"
+kurbo = "0.10"
 futures-task = "0.3"
 futures-util = "0.3"
+ratatui = "0.26"
 tokio = { version = "1.35", features = ["full"] }
-anyhow = "1.0"
-tracing = "0.1.40"
+tracing = "0.1"
 tracing-appender = "0.2"
 tracing-subscriber = "0.3"
-kurbo = "0.10.4"
-# update this when a new release occurs
-ratatui = "0.26"
-bitflags = "2.4.2"
-unicode-segmentation = "1.10.1"
-unicode-width = "0.1.11"
+unicode-segmentation = "1.11"
+unicode-width = "0.1"
 
 [dev-dependencies]
 futures = "0.3"
-insta = "1.34.0"
-rand = "0.8.5"
+insta = "1.34"
+rand = "0.8"
 
 [lints.clippy]
 dbg_macro = "warn"

src/app.rs

@@ -20,12 +20,13 @@ use crossterm::{
 };
 
 use crossterm::event::{poll, read, Event as CxEvent, KeyCode, KeyEvent};
+use directories::ProjectDirs;
 use ratatui::Terminal;
 
 #[cfg(not(test))]
 use std::io::stdout;
 
-use std::{collections::HashSet, path::PathBuf, sync::Arc, time::Duration};
+use std::{collections::HashSet, sync::Arc, time::Duration};
 use tokio::runtime::Runtime;
 use tracing_subscriber::{fmt::writer::MakeWriterExt, layer::SubscriberExt, Registry};
 use xilem_core::{AsyncWake, Id, IdPath, MessageResult};
@@ -40,7 +41,8 @@ use std::io::{Stdout, Write};
 
 // TODO less hardcoding and cross-platform support
 fn setup_logging(log_level: tracing::Level) -> Result<tracing_appender::non_blocking::WorkerGuard> {
-    let cache_dir = PathBuf::from(std::env::var_os("HOME").unwrap()).join(".cache/trui");
+    let proj_dirs = ProjectDirs::from("", "", "trui").expect("Opening cache directory");
+    let cache_dir = proj_dirs.cache_dir();
     let tracing_file_appender = tracing_appender::rolling::never(cache_dir, "trui.log");
     let (tracing_file_writer, guard) = tracing_appender::non_blocking(tracing_file_appender);