refactor: `DenoDir` - move to cache folder and make `root_dir` private (#16823)

13 files changed, 83 insertions, 53 deletions

diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index ae43bccaf..50a407ee3 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -44,7 +44,7 @@ use std::net::SocketAddr;
 use std::path::PathBuf;
 use std::sync::Arc;
 
-use crate::deno_dir::DenoDir;
+use crate::cache::DenoDir;
 use crate::file_fetcher::get_root_cert_store;
 use crate::file_fetcher::CacheSetting;
 use crate::fs_util;
diff --git a/cli/deno_dir.rs b/cli/cache/deno_dir.rs
index c0d116a6a..217658c15 100644
--- a/cli/deno_dir.rs
+++ b/cli/cache/deno_dir.rs
@@ -1,6 +1,6 @@
 // Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
 
-use crate::cache::DiskCache;
+use super::DiskCache;
 
 use std::path::PathBuf;
 
@@ -9,7 +9,8 @@ use std::path::PathBuf;
 #[derive(Clone)]
 pub struct DenoDir {
   /// Example: /Users/rld/.deno/
-  pub root: PathBuf,
+  /// Note: This is not exposed in order to encourage using re-usable methods.
+  root: PathBuf,
   /// Used by TsCompiler to cache compiler output.
   pub gen_cache: DiskCache,
 }
@@ -46,6 +47,11 @@ impl DenoDir {
     Ok(deno_dir)
   }
 
+  /// The root directory of the DENO_DIR for display purposes only.
+  pub fn root_path_for_display(&self) -> std::path::Display {
+    self.root.display()
+  }
+
   /// Path for the incremental cache used for formatting.
   pub fn fmt_incremental_cache_db_file_path(&self) -> PathBuf {
     // bump this version name to invalidate the entire cache
@@ -75,6 +81,42 @@ impl DenoDir {
     // bump this version name to invalidate the entire cache
     self.root.join("check_cache_v1")
   }
+
+  /// Path to the registries cache, used for the lps.
+  pub fn registries_folder_path(&self) -> PathBuf {
+    self.root.join("registries")
+  }
+
+  /// Path to the dependencies cache folder.
+  pub fn deps_folder_path(&self) -> PathBuf {
+    self.root.join("deps")
+  }
+
+  /// Path to the origin data cache folder.
+  pub fn origin_data_folder_path(&self) -> PathBuf {
+    // TODO(@crowlKats): change to origin_data for 2.0
+    self.root.join("location_data")
+  }
+
+  /// File used for the upgrade checker.
+  pub fn upgrade_check_file_path(&self) -> PathBuf {
+    self.root.join("latest.txt")
+  }
+
+  /// Folder used for the npm cache.
+  pub fn npm_folder_path(&self) -> PathBuf {
+    self.root.join("npm")
+  }
+
+  /// Path used for the REPL history file.
+  pub fn repl_history_file_path(&self) -> PathBuf {
+    self.root.join("deno_history.txt")
+  }
+
+  /// Folder path used for downloading new versions of deno.
+  pub fn dl_folder_path(&self) -> PathBuf {
+    self.root.join("dl")
+  }
 }
 
 /// To avoid the poorly managed dirs crate
diff --git a/cli/cache/mod.rs b/cli/cache/mod.rs
index 16390013a..cf9a4c441 100644
--- a/cli/cache/mod.rs
+++ b/cli/cache/mod.rs
@@ -16,6 +16,7 @@ use std::sync::Arc;
 
 mod check;
 mod common;
+mod deno_dir;
 mod disk_cache;
 mod emit;
 mod incremental;
@@ -24,6 +25,7 @@ mod parsed_source;
 
 pub use check::TypeCheckCache;
 pub use common::FastInsecureHasher;
+pub use deno_dir::DenoDir;
 pub use disk_cache::DiskCache;
 pub use emit::EmitCache;
 pub use incremental::IncrementalCache;
diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index 4595d2146..4e7c4b240 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -63,8 +63,7 @@ use crate::args::Flags;
 use crate::args::FmtConfig;
 use crate::args::LintConfig;
 use crate::args::TsConfig;
-use crate::deno_dir;
-use crate::deno_dir::DenoDir;
+use crate::cache::DenoDir;
 use crate::file_fetcher::get_root_cert_store;
 use crate::file_fetcher::get_source_from_data_url;
 use crate::file_fetcher::CacheSetting;
@@ -80,9 +79,6 @@ use crate::progress_bar::ProgressBar;
 use crate::tools::fmt::format_file;
 use crate::tools::fmt::format_parsed_source;
 
-pub const REGISTRIES_PATH: &str = "registries";
-const CACHE_PATH: &str = "deps";
-
 #[derive(Debug, Clone)]
 pub struct LanguageServer(Arc<tokio::sync::Mutex<Inner>>);
 
@@ -267,14 +263,14 @@ fn create_lsp_npm_resolver(
 impl Inner {
   fn new(client: Client) -> Self {
     let maybe_custom_root = env::var("DENO_DIR").map(String::into).ok();
-    let dir = deno_dir::DenoDir::new(maybe_custom_root)
-      .expect("could not access DENO_DIR");
-    let module_registries_location = dir.root.join(REGISTRIES_PATH);
+    let dir =
+      DenoDir::new(maybe_custom_root).expect("could not access DENO_DIR");
+    let module_registries_location = dir.registries_folder_path();
     let http_client = HttpClient::new(None, None).unwrap();
     let module_registries =
       ModuleRegistry::new(&module_registries_location, http_client.clone())
         .unwrap();
-    let location = dir.root.join(CACHE_PATH);
+    let location = dir.deps_folder_path();
     let documents = Documents::new(&location);
     let cache_metadata = cache::CacheMetadata::new(&location);
     let performance = Arc::new(Performance::default());
@@ -521,7 +517,7 @@ impl Inner {
     let maybe_custom_root = new_cache_path
       .clone()
       .or_else(|| env::var("DENO_DIR").map(String::into).ok());
-    let dir = deno_dir::DenoDir::new(maybe_custom_root)?;
+    let dir = DenoDir::new(maybe_custom_root)?;
     let workspace_settings = self.config.get_workspace_settings();
     let maybe_root_path = self
       .config
@@ -537,13 +533,13 @@ impl Inner {
       root_cert_store,
       workspace_settings.unsafely_ignore_certificate_errors,
     )?;
-    let module_registries_location = dir.root.join(REGISTRIES_PATH);
+    let module_registries_location = dir.registries_folder_path();
     self.module_registries =
       ModuleRegistry::new(&module_registries_location, client.clone())?;
     self.module_registries_location = module_registries_location;
     self.npm_resolver = create_lsp_npm_resolver(&dir, client);
     // update the cache path
-    let location = dir.root.join(CACHE_PATH);
+    let location = dir.deps_folder_path();
     self.documents.set_location(&location);
     self.cache_metadata.set_location(&location);
     self.maybe_cache_path = new_cache_path;
diff --git a/cli/lsp/registries.rs b/cli/lsp/registries.rs
index 6fd48d8b9..43500e697 100644
--- a/cli/lsp/registries.rs
+++ b/cli/lsp/registries.rs
@@ -12,7 +12,7 @@ use super::path_to_regex::StringOrNumber;
 use super::path_to_regex::StringOrVec;
 use super::path_to_regex::Token;
 
-use crate::deno_dir;
+use crate::cache::DenoDir;
 use crate::file_fetcher::CacheSetting;
 use crate::file_fetcher::FileFetcher;
 use crate::http_cache::HttpCache;
@@ -422,8 +422,8 @@ impl Default for ModuleRegistry {
     // This only gets used when creating the tsc runtime and for testing, and so
     // it shouldn't ever actually access the DenoDir, so it doesn't support a
     // custom root.
-    let dir = deno_dir::DenoDir::new(None).unwrap();
-    let location = dir.root.join("registries");
+    let dir = DenoDir::new(None).unwrap();
+    let location = dir.registries_folder_path();
     let http_client = HttpClient::new(None, None).unwrap();
     Self::new(&location, http_client).unwrap()
   }
diff --git a/cli/main.rs b/cli/main.rs
index e42c6325e..4eaaeb755 100644
--- a/cli/main.rs
+++ b/cli/main.rs
@@ -4,7 +4,6 @@ mod args;
 mod auth_tokens;
 mod cache;
 mod checksum;
-mod deno_dir;
 mod deno_std;
 mod diff;
 mod display;
@@ -706,7 +705,7 @@ To grant permissions, set them before the script argument. For example:
 
   // Run a background task that checks for available upgrades. If an earlier
   // run of this background task found a new version of Deno.
-  tools::upgrade::check_for_upgrades(ps.dir.root.clone());
+  tools::upgrade::check_for_upgrades(ps.dir.upgrade_check_file_path());
 
   let main_module = if NpmPackageReference::from_str(&run_flags.script).is_ok()
   {
diff --git a/cli/npm/cache.rs b/cli/npm/cache.rs
index ce2208db7..b2c842309 100644
--- a/cli/npm/cache.rs
+++ b/cli/npm/cache.rs
@@ -11,7 +11,7 @@ use deno_core::error::custom_error;
 use deno_core::error::AnyError;
 use deno_core::url::Url;
 
-use crate::deno_dir::DenoDir;
+use crate::cache::DenoDir;
 use crate::file_fetcher::CacheSetting;
 use crate::fs_util;
 use crate::http_util::HttpClient;
@@ -146,7 +146,7 @@ impl Default for ReadonlyNpmCache {
     // This only gets used when creating the tsc runtime and for testing, and so
     // it shouldn't ever actually access the DenoDir, so it doesn't support a
     // custom root.
-    Self::from_deno_dir(&crate::deno_dir::DenoDir::new(None).unwrap())
+    Self::from_deno_dir(&DenoDir::new(None).unwrap())
   }
 }
 
@@ -173,7 +173,7 @@ impl ReadonlyNpmCache {
   }
 
   pub fn from_deno_dir(dir: &DenoDir) -> Self {
-    Self::new(dir.root.join("npm"))
+    Self::new(dir.npm_folder_path())
   }
 
   pub fn package_folder_for_id(
@@ -510,7 +510,8 @@ mod test {
 
   #[test]
   fn should_get_package_folder() {
-    let root_dir = crate::deno_dir::DenoDir::new(None).unwrap().root;
+    let deno_dir = crate::cache::DenoDir::new(None).unwrap();
+    let root_dir = deno_dir.npm_folder_path();
     let cache = ReadonlyNpmCache::new(root_dir.clone());
     let registry_url = Url::parse("https://registry.npmjs.org/").unwrap();
 
diff --git a/cli/proc_state.rs b/cli/proc_state.rs
index 019b6e447..dc80ca8db 100644
--- a/cli/proc_state.rs
+++ b/cli/proc_state.rs
@@ -8,12 +8,12 @@ use crate::args::TsConfigType;
 use crate::args::TsTypeLib;
 use crate::args::TypeCheckMode;
 use crate::cache;
+use crate::cache::DenoDir;
 use crate::cache::EmitCache;
 use crate::cache::FastInsecureHasher;
 use crate::cache::NodeAnalysisCache;
 use crate::cache::ParsedSourceCache;
 use crate::cache::TypeCheckCache;
-use crate::deno_dir;
 use crate::emit::emit_parsed_source;
 use crate::file_fetcher::FileFetcher;
 use crate::graph_util::graph_lock_or_exit;
@@ -73,7 +73,7 @@ use std::sync::Arc;
 pub struct ProcState(Arc<Inner>);
 
 pub struct Inner {
-  pub dir: deno_dir::DenoDir,
+  pub dir: DenoDir,
   pub file_fetcher: FileFetcher,
   pub options: Arc<CliOptions>,
   pub emit_cache: EmitCache,
@@ -152,7 +152,7 @@ impl ProcState {
     let shared_array_buffer_store = SharedArrayBufferStore::default();
     let compiled_wasm_module_store = CompiledWasmModuleStore::default();
     let dir = cli_options.resolve_deno_dir()?;
-    let deps_cache_location = dir.root.join("deps");
+    let deps_cache_location = dir.deps_folder_path();
     let http_cache = http_cache::HttpCache::new(&deps_cache_location);
     let root_cert_store = cli_options.resolve_root_cert_store()?;
     let cache_usage = cli_options.cache_setting();
diff --git a/cli/tools/info.rs b/cli/tools/info.rs
index f718d8e52..38aa40a5e 100644
--- a/cli/tools/info.rs
+++ b/cli/tools/info.rs
@@ -22,7 +22,6 @@ use crate::args::Flags;
 use crate::args::InfoFlags;
 use crate::checksum;
 use crate::display;
-use crate::lsp;
 use crate::npm::NpmPackageId;
 use crate::npm::NpmPackageReference;
 use crate::npm::NpmPackageReq;
@@ -58,13 +57,12 @@ fn print_cache_info(
   json: bool,
   location: Option<&deno_core::url::Url>,
 ) -> Result<(), AnyError> {
-  let deno_dir = &state.dir.root;
+  let deno_dir = &state.dir.root_path_for_display();
   let modules_cache = &state.file_fetcher.get_http_cache_location();
   let npm_cache = &state.npm_cache.as_readonly().get_cache_location();
   let typescript_cache = &state.dir.gen_cache.location;
-  let registry_cache =
-    &state.dir.root.join(lsp::language_server::REGISTRIES_PATH);
-  let mut origin_dir = state.dir.root.join("location_data");
+  let registry_cache = &state.dir.registries_folder_path();
+  let mut origin_dir = state.dir.origin_data_folder_path();
 
   if let Some(location) = &location {
     origin_dir =
@@ -75,7 +73,7 @@ fn print_cache_info(
 
   if json {
     let mut output = json!({
-      "denoDir": deno_dir,
+      "denoDir": deno_dir.to_string(),
       "modulesCache": modules_cache,
       "npmCache": npm_cache,
       "typescriptCache": typescript_cache,
@@ -89,11 +87,7 @@ fn print_cache_info(
 
     display::write_json_to_stdout(&output)
   } else {
-    println!(
-      "{} {}",
-      colors::bold("DENO_DIR location:"),
-      deno_dir.display()
-    );
+    println!("{} {}", colors::bold("DENO_DIR location:"), deno_dir);
     println!(
       "{} {}",
       colors::bold("Remote modules cache:"),
diff --git a/cli/tools/repl/mod.rs b/cli/tools/repl/mod.rs
index 597b3ff5f..1cdb17ab1 100644
--- a/cli/tools/repl/mod.rs
+++ b/cli/tools/repl/mod.rs
@@ -89,7 +89,7 @@ pub async fn run(
     sync_sender: rustyline_channel.0,
   };
 
-  let history_file_path = ps.dir.root.join("deno_history.txt");
+  let history_file_path = ps.dir.repl_history_file_path();
   let editor = ReplEditor::new(helper, history_file_path)?;
 
   if let Some(eval_files) = maybe_eval_files {
diff --git a/cli/tools/standalone.rs b/cli/tools/standalone.rs
index 494c2f476..f173103cb 100644
--- a/cli/tools/standalone.rs
+++ b/cli/tools/standalone.rs
@@ -5,7 +5,7 @@ use crate::args::DenoSubcommand;
 use crate::args::Flags;
 use crate::args::RunFlags;
 use crate::args::TypeCheckMode;
-use crate::deno_dir::DenoDir;
+use crate::cache::DenoDir;
 use crate::fs_util;
 use crate::standalone::Metadata;
 use crate::standalone::MAGIC_TRAILER;
@@ -50,7 +50,7 @@ pub async fn get_base_binary(
     format!("release/v{}/{}", env!("CARGO_PKG_VERSION"), binary_name)
   };
 
-  let download_directory = deno_dir.root.join("dl");
+  let download_directory = deno_dir.dl_folder_path();
   let binary_path = download_directory.join(&binary_path_suffix);
 
   if !binary_path.exists() {
diff --git a/cli/tools/upgrade.rs b/cli/tools/upgrade.rs
index f39823600..c5f469835 100644
--- a/cli/tools/upgrade.rs
+++ b/cli/tools/upgrade.rs
@@ -31,7 +31,6 @@ const RELEASE_URL: &str = "https://github.com/denoland/deno/releases";
 
 // How often query server for new version. In hours.
 const UPGRADE_CHECK_INTERVAL: i64 = 24;
-const UPGRADE_CHECK_FILE_NAME: &str = "latest.txt";
 
 const UPGRADE_CHECK_FETCH_DELAY: Duration = Duration::from_millis(500);
 
@@ -47,14 +46,14 @@ trait UpdateCheckerEnvironment: Clone + Send + Sync {
 
 #[derive(Clone)]
 struct RealUpdateCheckerEnvironment {
-  cache_dir: PathBuf,
+  cache_file_path: PathBuf,
   current_time: chrono::DateTime<chrono::Utc>,
 }
 
 impl RealUpdateCheckerEnvironment {
-  pub fn new(cache_dir: PathBuf) -> Self {
+  pub fn new(cache_file_path: PathBuf) -> Self {
     Self {
-      cache_dir,
+      cache_file_path,
       // cache the current time
       current_time: chrono::Utc::now(),
     }
@@ -79,12 +78,11 @@ impl UpdateCheckerEnvironment for RealUpdateCheckerEnvironment {
   }
 
   fn read_check_file(&self) -> String {
-    std::fs::read_to_string(self.cache_dir.join(UPGRADE_CHECK_FILE_NAME))
-      .unwrap_or_default()
+    std::fs::read_to_string(&self.cache_file_path).unwrap_or_default()
   }
 
   fn write_check_file(&self, text: &str) {
-    let _ = std::fs::write(self.cache_dir.join(UPGRADE_CHECK_FILE_NAME), text);
+    let _ = std::fs::write(&self.cache_file_path, text);
   }
 
   fn current_time(&self) -> chrono::DateTime<chrono::Utc> {
@@ -160,12 +158,12 @@ impl<TEnvironment: UpdateCheckerEnvironment> UpdateChecker<TEnvironment> {
   }
 }
 
-pub fn check_for_upgrades(cache_dir: PathBuf) {
+pub fn check_for_upgrades(cache_file_path: PathBuf) {
   if env::var("DENO_NO_UPDATE_CHECK").is_ok() {
     return;
   }
 
-  let env = RealUpdateCheckerEnvironment::new(cache_dir);
+  let env = RealUpdateCheckerEnvironment::new(cache_file_path);
   let update_checker = UpdateChecker::new(env);
 
   if update_checker.should_check_for_new_version() {
diff --git a/cli/worker.rs b/cli/worker.rs
index d06864634..fb021b614 100644
--- a/cli/worker.rs
+++ b/cli/worker.rs
@@ -483,9 +483,7 @@ async fn create_main_worker_internal(
   let maybe_storage_key = ps.options.resolve_storage_key(&main_module);
   let origin_storage_dir = maybe_storage_key.as_ref().map(|key| {
     ps.dir
-      .root
-      // TODO(@crowlKats): change to origin_data for 2.0
-      .join("location_data")
+      .origin_data_folder_path()
       .join(checksum::gen(&[key.as_bytes()]))
   });
   let cache_storage_dir = maybe_storage_key.map(|key| {