FUTURE: initial support for .npmrc file (#23560)

This commit adds initial support for ".npmrc" files.

Currently we only discover ".npmrc" files next to "package.json" files
and discovering these files in user home dir is left for a follow up.

This pass supports "_authToken" and "_auth" configuration
for providing authentication.

LSP support has been left for a follow up PR.

Towards https://github.com/denoland/deno/issues/16105

3 files changed, 14 insertions, 1 deletions

diff --git a/cli/lsp/config.rs b/cli/lsp/config.rs
index 597f45688..89ecb84d8 100644
--- a/cli/lsp/config.rs
+++ b/cli/lsp/config.rs
@@ -24,6 +24,7 @@ use deno_core::serde_json::json;
 use deno_core::serde_json::Value;
 use deno_core::ModuleSpecifier;
 use deno_lockfile::Lockfile;
+use deno_npm::npm_rc::ResolvedNpmRc;
 use deno_runtime::deno_node::PackageJson;
 use deno_runtime::fs_util::specifier_to_file_path;
 use deno_runtime::permissions::PermissionsContainer;
@@ -1090,6 +1091,7 @@ pub struct ConfigData {
   pub vendor_dir: Option<PathBuf>,
   pub lockfile: Option<Arc<Mutex<Lockfile>>>,
   pub package_json: Option<Arc<PackageJson>>,
+  pub npmrc: Option<Arc<ResolvedNpmRc>>,
   pub import_map: Option<Arc<ImportMap>>,
   pub import_map_from_settings: bool,
   watched_files: HashMap<ModuleSpecifier, ConfigWatchedFileType>,
@@ -1274,6 +1276,8 @@ impl ConfigData {
 
     // Load package.json
     let mut package_json = None;
+    // TODO(bartlomieju): support discovering .npmrc
+    let npmrc = None;
     if let Ok(path) = specifier_to_file_path(scope) {
       let path = path.join("package.json");
       if let Ok(specifier) = ModuleSpecifier::from_file_path(&path) {
@@ -1429,6 +1433,7 @@ impl ConfigData {
       vendor_dir,
       lockfile: lockfile.map(Mutex::new).map(Arc::new),
       package_json: package_json.map(Arc::new),
+      npmrc: npmrc.map(Arc::new),
       import_map: import_map.map(Arc::new),
       import_map_from_settings,
       watched_files,
diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index 17ed02cd6..8f37d8b9c 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -83,6 +83,7 @@ use super::tsc::ChangeKind;
 use super::tsc::GetCompletionDetailsArgs;
 use super::tsc::TsServer;
 use super::urls;
+use crate::args::create_default_npmrc;
 use crate::args::get_root_cert_store;
 use crate::args::CaData;
 use crate::args::CacheSetting;
@@ -3318,6 +3319,9 @@ impl Inner {
       config_data.and_then(|d| d.config_file.as_deref().cloned()),
       config_data.and_then(|d| d.lockfile.clone()),
       config_data.and_then(|d| d.package_json.as_deref().cloned()),
+      config_data
+        .and_then(|d| d.npmrc.clone())
+        .unwrap_or_else(create_default_npmrc),
       force_global_cache,
     )?;
 
diff --git a/cli/lsp/resolver.rs b/cli/lsp/resolver.rs
index c4d97177f..0567bba86 100644
--- a/cli/lsp/resolver.rs
+++ b/cli/lsp/resolver.rs
@@ -1,5 +1,6 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 
+use crate::args::create_default_npmrc;
 use crate::args::package_json;
 use crate::args::CacheSetting;
 use crate::cache::FastInsecureHasher;
@@ -363,7 +364,10 @@ async fn create_npm_resolver(
       // do not install while resolving in the lsp—leave that to the cache command
       package_json_installer:
         CliNpmResolverManagedPackageJsonInstallerOption::NoInstall,
-      npm_registry_url: crate::args::npm_registry_url().to_owned(),
+      npmrc: config_data
+        .npmrc
+        .clone()
+        .unwrap_or_else(create_default_npmrc),
       npm_system_info: NpmSystemInfo::default(),
     })
   };