fix: align cache command path

Author: Bortlesboat

src/cortex-cli/src/cache_cmd.rs

@@ -10,6 +10,8 @@ use clap::Parser;
 use serde::Serialize;
 use std::path::PathBuf;
 
+use crate::debug_cmd::utils::get_cortex_home;
+
 /// Cache CLI command.
 #[derive(Debug, Parser)]
 pub struct CacheCli {
@@ -110,13 +112,7 @@ struct CacheCategory {
 
 /// Get the cache directory.
 fn get_cache_dir() -> PathBuf {
-    dirs::cache_dir()
-        .map(|c| c.join("cortex"))
-        .unwrap_or_else(|| {
-            dirs::home_dir()
-                .map(|h| h.join(".cache").join("cortex"))
-                .unwrap_or_else(|| PathBuf::from(".cache/cortex"))
-        })
+    get_cortex_home().join("cache")
 }
 
 /// Calculate directory size recursively.

src/cortex-cli/tests/cache_paths.rs

@@ -0,0 +1,31 @@
+use std::process::Command;
+
+use serde_json::Value;
+
+fn cortex_json(args: &[&str]) -> Value {
+    let output = Command::new(env!("CARGO_BIN_EXE_Cortex"))
+        .args(args)
+        .output()
+        .expect("failed to run Cortex test binary");
+
+    assert!(
+        output.status.success(),
+        "Cortex {:?} failed\nstdout:\n{}\nstderr:\n{}",
+        args,
+        String::from_utf8_lossy(&output.stdout),
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    serde_json::from_slice(&output.stdout).expect("Cortex command should print JSON")
+}
+
+#[test]
+fn cache_show_json_uses_debug_paths_cache_dir() {
+    let cache_show = cortex_json(&["cache", "show", "--json"]);
+    let debug_paths = cortex_json(&["debug", "paths", "--json"]);
+
+    assert_eq!(
+        cache_show["cache_dir"].as_str(),
+        debug_paths["cache_dir"]["path"].as_str()
+    );
+}