feat(lsp): jsr specifier completions (#22612)

9 files changed, 875 insertions, 194 deletions

diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index 7fcc56c5f..95df047e6 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -693,6 +693,7 @@ impl CliOptions {
     maybe_config_file: Option<ConfigFile>,
     maybe_lockfile: Option<Arc<Mutex<Lockfile>>>,
     maybe_package_json: Option<PackageJson>,
+    force_global_cache: bool,
   ) -> Result<Self, AnyError> {
     if let Some(insecure_allowlist) =
       flags.unsafely_ignore_certificate_errors.as_ref()
@@ -708,6 +709,7 @@ impl CliOptions {
       eprintln!("{}", colors::yellow(msg));
     }
 
+    let maybe_lockfile = maybe_lockfile.filter(|_| !force_global_cache);
     let maybe_node_modules_folder = resolve_node_modules_folder(
       &initial_cwd,
       &flags,
@@ -715,8 +717,11 @@ impl CliOptions {
       maybe_package_json.as_ref(),
     )
     .with_context(|| "Resolving node_modules folder.")?;
-    let maybe_vendor_folder =
-      resolve_vendor_folder(&initial_cwd, &flags, maybe_config_file.as_ref());
+    let maybe_vendor_folder = if force_global_cache {
+      None
+    } else {
+      resolve_vendor_folder(&initial_cwd, &flags, maybe_config_file.as_ref())
+    };
     let maybe_workspace_config =
       if let Some(config_file) = maybe_config_file.as_ref() {
         config_file.to_workspace_config()?
@@ -802,6 +807,7 @@ impl CliOptions {
       maybe_config_file,
       maybe_lock_file.map(|l| Arc::new(Mutex::new(l))),
       maybe_package_json,
+      false,
     )
   }
 
diff --git a/cli/file_fetcher.rs b/cli/file_fetcher.rs
index a74a14a3f..5b530cf6d 100644
--- a/cli/file_fetcher.rs
+++ b/cli/file_fetcher.rs
@@ -186,6 +186,10 @@ impl FileFetcher {
     }
   }
 
+  pub fn http_cache(&self) -> &Arc<dyn HttpCache> {
+    &self.http_cache
+  }
+
   pub fn cache_setting(&self) -> &CacheSetting {
     &self.cache_setting
   }
diff --git a/cli/lsp/completions.rs b/cli/lsp/completions.rs
index 7fe161039..074d913c5 100644
--- a/cli/lsp/completions.rs
+++ b/cli/lsp/completions.rs
@@ -5,10 +5,12 @@ use super::config::ConfigSnapshot;
 use super::config::WorkspaceSettings;
 use super::documents::Documents;
 use super::documents::DocumentsFilter;
+use super::jsr::CliJsrSearchApi;
+use super::jsr::JsrResolver;
 use super::lsp_custom;
 use super::npm::CliNpmSearchApi;
-use super::npm::NpmSearchApi;
 use super::registries::ModuleRegistry;
+use super::search::PackageSearchApi;
 use super::tsc;
 
 use crate::util::path::is_importable_ext;
@@ -25,6 +27,8 @@ use deno_core::serde::Serialize;
 use deno_core::serde_json::json;
 use deno_core::url::Position;
 use deno_core::ModuleSpecifier;
+use deno_semver::jsr::JsrPackageReqReference;
+use deno_semver::package::PackageNv;
 use import_map::ImportMap;
 use once_cell::sync::Lazy;
 use regex::Regex;
@@ -148,6 +152,7 @@ pub async fn get_import_completions(
   config: &ConfigSnapshot,
   client: &Client,
   module_registries: &ModuleRegistry,
+  jsr_search_api: &CliJsrSearchApi,
   npm_search_api: &CliNpmSearchApi,
   documents: &Documents,
   maybe_import_map: Option<Arc<ImportMap>>,
@@ -170,6 +175,19 @@ pub async fn get_import_completions(
       is_incomplete: false,
       items: get_local_completions(specifier, &text, &range)?,
     }))
+  } else if text.starts_with("jsr:") {
+    let items = get_jsr_completions(
+      specifier,
+      &text,
+      &range,
+      jsr_search_api,
+      jsr_search_api.get_resolver(),
+    )
+    .await?;
+    Some(lsp::CompletionResponse::List(lsp::CompletionList {
+      is_incomplete: !items.is_empty(),
+      items,
+    }))
   } else if text.starts_with("npm:") {
     let items =
       get_npm_completions(specifier, &text, &range, npm_search_api).await?;
@@ -475,8 +493,7 @@ fn get_relative_specifiers(
 }
 
 /// Find the index of the '@' delimiting the package name and version, if any.
-fn parse_npm_specifier_version_index(specifier: &str) -> Option<usize> {
-  let bare_specifier = specifier.strip_prefix("npm:")?;
+fn parse_bare_specifier_version_index(bare_specifier: &str) -> Option<usize> {
   if bare_specifier.starts_with('@') {
     bare_specifier
       .find('/')
@@ -486,49 +503,188 @@ fn parse_npm_specifier_version_index(specifier: &str) -> Option<usize> {
           .find('@')
           .filter(|idx2| !bare_specifier[idx..][1..*idx2].is_empty())
           .filter(|idx2| !bare_specifier[idx..][1..*idx2].contains('/'))
-          .map(|idx2| 4 + idx + idx2)
+          .map(|idx2| idx + idx2)
       })
   } else {
     bare_specifier
       .find('@')
       .filter(|idx| !bare_specifier[1..*idx].is_empty())
       .filter(|idx| !bare_specifier[1..*idx].contains('/'))
-      .map(|idx| 4 + idx)
   }
 }
 
+async fn get_jsr_completions(
+  referrer: &ModuleSpecifier,
+  specifier: &str,
+  range: &lsp::Range,
+  jsr_search_api: &impl PackageSearchApi,
+  jsr_resolver: &JsrResolver,
+) -> Option<Vec<lsp::CompletionItem>> {
+  // First try to match `jsr:some-package@some-version/<export-to-complete>`.
+  if let Ok(req_ref) = JsrPackageReqReference::from_str(specifier) {
+    let sub_path = req_ref.sub_path();
+    if sub_path.is_some() || specifier.ends_with('/') {
+      let export_prefix = sub_path.unwrap_or("");
+      let req = req_ref.req();
+      let nv = jsr_resolver.req_to_nv(req);
+      let nv = nv.or_else(|| PackageNv::from_str(&req.to_string()).ok())?;
+      let exports = jsr_search_api.exports(&nv).await.ok()?;
+      let items = exports
+        .iter()
+        .enumerate()
+        .filter_map(|(idx, export)| {
+          if export == "." {
+            return None;
+          }
+          let export = export.strip_prefix("./").unwrap_or(export.as_str());
+          if !export.starts_with(export_prefix) {
+            return None;
+          }
+          let specifier = format!("jsr:{}/{}", req_ref.req(), export);
+          let command = Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!([&specifier]),
+              json!(referrer),
+              json!({ "forceGlobalCache": true }),
+            ]),
+          });
+          let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range: *range,
+            new_text: specifier.clone(),
+          }));
+          Some(lsp::CompletionItem {
+            label: specifier,
+            kind: Some(lsp::CompletionItemKind::FILE),
+            detail: Some("(jsr)".to_string()),
+            sort_text: Some(format!("{:0>10}", idx + 1)),
+            text_edit,
+            command,
+            commit_characters: Some(
+              IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
+            ),
+            ..Default::default()
+          })
+        })
+        .collect();
+      return Some(items);
+    }
+  }
+
+  // Then try to match `jsr:some-package@<version-to-complete>`.
+  let bare_specifier = specifier.strip_prefix("jsr:")?;
+  if let Some(v_index) = parse_bare_specifier_version_index(bare_specifier) {
+    let package_name = &bare_specifier[..v_index];
+    let v_prefix = &bare_specifier[(v_index + 1)..];
+
+    let versions = jsr_search_api.versions(package_name).await.ok()?;
+    let items = versions
+      .iter()
+      .enumerate()
+      .filter_map(|(idx, version)| {
+        let version = version.to_string();
+        if !version.starts_with(v_prefix) {
+          return None;
+        }
+        let specifier = format!("jsr:{}@{}", package_name, version);
+        let command = Some(lsp::Command {
+          title: "".to_string(),
+          command: "deno.cache".to_string(),
+          arguments: Some(vec![
+            json!([&specifier]),
+            json!(referrer),
+            json!({ "forceGlobalCache": true }),
+          ]),
+        });
+        let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+          range: *range,
+          new_text: specifier.clone(),
+        }));
+        Some(lsp::CompletionItem {
+          label: specifier,
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some(format!("{:0>10}", idx + 1)),
+          text_edit,
+          command,
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
+          ),
+          ..Default::default()
+        })
+      })
+      .collect();
+    return Some(items);
+  }
+
+  // Otherwise match `jsr:<package-to-complete>`.
+  let names = jsr_search_api.search(bare_specifier).await.ok()?;
+  let items = names
+    .iter()
+    .enumerate()
+    .map(|(idx, name)| {
+      let specifier = format!("jsr:{}", name);
+      let command = Some(lsp::Command {
+        title: "".to_string(),
+        command: "deno.cache".to_string(),
+        arguments: Some(vec![
+          json!([&specifier]),
+          json!(referrer),
+          json!({ "forceGlobalCache": true }),
+        ]),
+      });
+      let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+        range: *range,
+        new_text: specifier.clone(),
+      }));
+      lsp::CompletionItem {
+        label: specifier,
+        kind: Some(lsp::CompletionItemKind::FILE),
+        detail: Some("(jsr)".to_string()),
+        sort_text: Some(format!("{:0>10}", idx + 1)),
+        text_edit,
+        command,
+        commit_characters: Some(
+          IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
+        ),
+        ..Default::default()
+      }
+    })
+    .collect();
+  Some(items)
+}
+
 /// Get completions for `npm:` specifiers.
 async fn get_npm_completions(
   referrer: &ModuleSpecifier,
   specifier: &str,
   range: &lsp::Range,
-  npm_search_api: &impl NpmSearchApi,
+  npm_search_api: &impl PackageSearchApi,
 ) -> Option<Vec<lsp::CompletionItem>> {
   // First try to match `npm:some-package@<version-to-complete>`.
-  if let Some(v_index) = parse_npm_specifier_version_index(specifier) {
-    let package_name = &specifier[..v_index].strip_prefix("npm:")?;
-    let v_prefix = &specifier[(v_index + 1)..];
-    let versions = &npm_search_api
-      .package_info(package_name)
-      .await
-      .ok()?
-      .versions;
-    let mut versions = versions.keys().collect::<Vec<_>>();
-    versions.sort();
+  let bare_specifier = specifier.strip_prefix("npm:")?;
+  if let Some(v_index) = parse_bare_specifier_version_index(bare_specifier) {
+    let package_name = &bare_specifier[..v_index];
+    let v_prefix = &bare_specifier[(v_index + 1)..];
+    let versions = npm_search_api.versions(package_name).await.ok()?;
     let items = versions
-      .into_iter()
-      .rev()
+      .iter()
       .enumerate()
       .filter_map(|(idx, version)| {
         let version = version.to_string();
         if !version.starts_with(v_prefix) {
           return None;
         }
-        let specifier = format!("npm:{}@{}", package_name, &version);
+        let specifier = format!("npm:{}@{}", package_name, version);
         let command = Some(lsp::Command {
           title: "".to_string(),
           command: "deno.cache".to_string(),
-          arguments: Some(vec![json!([&specifier]), json!(referrer)]),
+          arguments: Some(vec![
+            json!([&specifier]),
+            json!(referrer),
+            json!({ "forceGlobalCache": true }),
+          ]),
         });
         let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
           range: *range,
@@ -552,8 +708,7 @@ async fn get_npm_completions(
   }
 
   // Otherwise match `npm:<package-to-complete>`.
-  let package_name_prefix = specifier.strip_prefix("npm:")?;
-  let names = npm_search_api.search(package_name_prefix).await.ok()?;
+  let names = npm_search_api.search(bare_specifier).await.ok()?;
   let items = names
     .iter()
     .enumerate()
@@ -562,7 +717,11 @@ async fn get_npm_completions(
       let command = Some(lsp::Command {
         title: "".to_string(),
         command: "deno.cache".to_string(),
-        arguments: Some(vec![json!([&specifier]), json!(referrer)]),
+        arguments: Some(vec![
+          json!([&specifier]),
+          json!(referrer),
+          json!({ "forceGlobalCache": true }),
+        ]),
       });
       let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
         range: *range,
@@ -640,43 +799,16 @@ mod tests {
   use super::*;
   use crate::cache::GlobalHttpCache;
   use crate::cache::HttpCache;
+  use crate::cache::RealDenoCacheEnv;
   use crate::lsp::documents::Documents;
   use crate::lsp::documents::LanguageId;
-  use crate::lsp::npm::NpmSearchApi;
-  use crate::AnyError;
-  use async_trait::async_trait;
+  use crate::lsp::search::tests::TestPackageSearchApi;
   use deno_core::resolve_url;
   use deno_graph::Range;
-  use deno_npm::registry::NpmPackageInfo;
-  use deno_npm::registry::NpmRegistryApi;
-  use deno_npm::registry::TestNpmRegistryApi;
   use std::collections::HashMap;
   use std::path::Path;
   use test_util::TempDir;
 
-  #[derive(Default)]
-  struct TestNpmSearchApi(
-    HashMap<String, Arc<Vec<String>>>,
-    TestNpmRegistryApi,
-  );
-
-  #[async_trait]
-  impl NpmSearchApi for TestNpmSearchApi {
-    async fn search(&self, query: &str) -> Result<Arc<Vec<String>>, AnyError> {
-      match self.0.get(query) {
-        Some(names) => Ok(names.clone()),
-        None => Ok(Arc::new(vec![])),
-      }
-    }
-
-    async fn package_info(
-      &self,
-      name: &str,
-    ) -> Result<Arc<NpmPackageInfo>, AnyError> {
-      self.1.package_info(name).await.map_err(|e| e.into())
-    }
-  }
-
   fn mock_documents(
     fixtures: &[(&str, &str, i32, LanguageId)],
     source_fixtures: &[(&str, &str)],
@@ -846,52 +978,326 @@ mod tests {
   }
 
   #[test]
-  fn test_parse_npm_specifier_version_index() {
-    assert_eq!(parse_npm_specifier_version_index("npm:"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:/"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:/@"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:@"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:@/"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:@/@"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:foo"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:foo/bar"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:foo/bar@"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:@org/foo/bar"), None);
-    assert_eq!(parse_npm_specifier_version_index("npm:@org/foo/bar@"), None);
+  fn test_parse_bare_specifier_version_index() {
+    assert_eq!(parse_bare_specifier_version_index(""), None);
+    assert_eq!(parse_bare_specifier_version_index("/"), None);
+    assert_eq!(parse_bare_specifier_version_index("/@"), None);
+    assert_eq!(parse_bare_specifier_version_index("@"), None);
+    assert_eq!(parse_bare_specifier_version_index("@/"), None);
+    assert_eq!(parse_bare_specifier_version_index("@/@"), None);
+    assert_eq!(parse_bare_specifier_version_index("foo"), None);
+    assert_eq!(parse_bare_specifier_version_index("foo/bar"), None);
+    assert_eq!(parse_bare_specifier_version_index("foo/bar@"), None);
+    assert_eq!(parse_bare_specifier_version_index("@org/foo/bar"), None);
+    assert_eq!(parse_bare_specifier_version_index("@org/foo/bar@"), None);
 
-    assert_eq!(parse_npm_specifier_version_index("npm:foo@"), Some(7));
-    assert_eq!(parse_npm_specifier_version_index("npm:foo@1."), Some(7));
-    assert_eq!(parse_npm_specifier_version_index("npm:@org/foo@"), Some(12));
-    assert_eq!(
-      parse_npm_specifier_version_index("npm:@org/foo@1."),
-      Some(12)
-    );
+    assert_eq!(parse_bare_specifier_version_index("foo@"), Some(3));
+    assert_eq!(parse_bare_specifier_version_index("foo@1."), Some(3));
+    assert_eq!(parse_bare_specifier_version_index("@org/foo@"), Some(8));
+    assert_eq!(parse_bare_specifier_version_index("@org/foo@1."), Some(8));
 
     // Regression test for https://github.com/denoland/deno/issues/22325.
     assert_eq!(
-      parse_npm_specifier_version_index(
-        "npm:@longer_than_right_one/arbitrary_string@"
+      parse_bare_specifier_version_index(
+        "@longer_than_right_one/arbitrary_string@"
       ),
-      Some(43)
+      Some(39)
     );
   }
 
   #[tokio::test]
-  async fn test_get_npm_completions() {
-    let npm_search_api = TestNpmSearchApi(
-      vec![(
-        "puppe".to_string(),
-        Arc::new(vec![
-          "puppeteer".to_string(),
-          "puppeteer-core".to_string(),
-          "puppeteer-extra-plugin-stealth".to_string(),
-          "puppeteer-extra-plugin".to_string(),
-        ]),
-      )]
-      .into_iter()
-      .collect(),
-      Default::default(),
+  async fn test_get_jsr_completions() {
+    let temp_dir = TempDir::default();
+    let jsr_resolver = JsrResolver::from_cache_and_lockfile(
+      Arc::new(GlobalHttpCache::new(
+        temp_dir.path().to_path_buf(),
+        RealDenoCacheEnv,
+      )),
+      None,
     );
+    let jsr_search_api = TestPackageSearchApi::default()
+      .with_package_version("@std/archive", "1.0.0", &[])
+      .with_package_version("@std/assert", "1.0.0", &[])
+      .with_package_version("@std/async", "1.0.0", &[])
+      .with_package_version("@std/bytes", "1.0.0", &[]);
+    let range = lsp::Range {
+      start: lsp::Position {
+        line: 0,
+        character: 23,
+      },
+      end: lsp::Position {
+        line: 0,
+        character: 29,
+      },
+    };
+    let referrer = ModuleSpecifier::parse("file:///referrer.ts").unwrap();
+    let actual = get_jsr_completions(
+      &referrer,
+      "jsr:as",
+      &range,
+      &jsr_search_api,
+      &jsr_resolver,
+    )
+    .await
+    .unwrap();
+    assert_eq!(
+      actual,
+      vec![
+        lsp::CompletionItem {
+          label: "jsr:@std/assert".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000001".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/assert".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/assert"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true })
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+        lsp::CompletionItem {
+          label: "jsr:@std/async".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000002".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/async".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/async"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true })
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+      ]
+    );
+  }
+
+  #[tokio::test]
+  async fn test_get_jsr_completions_for_versions() {
+    let temp_dir = TempDir::default();
+    let jsr_resolver = JsrResolver::from_cache_and_lockfile(
+      Arc::new(GlobalHttpCache::new(
+        temp_dir.path().to_path_buf(),
+        RealDenoCacheEnv,
+      )),
+      None,
+    );
+    let jsr_search_api = TestPackageSearchApi::default()
+      .with_package_version("@std/assert", "0.3.0", &[])
+      .with_package_version("@std/assert", "0.4.0", &[])
+      .with_package_version("@std/assert", "0.5.0", &[]);
+    let range = lsp::Range {
+      start: lsp::Position {
+        line: 0,
+        character: 23,
+      },
+      end: lsp::Position {
+        line: 0,
+        character: 39,
+      },
+    };
+    let referrer = ModuleSpecifier::parse("file:///referrer.ts").unwrap();
+    let actual = get_jsr_completions(
+      &referrer,
+      "jsr:@std/assert@",
+      &range,
+      &jsr_search_api,
+      &jsr_resolver,
+    )
+    .await
+    .unwrap();
+    assert_eq!(
+      actual,
+      vec![
+        lsp::CompletionItem {
+          label: "jsr:@std/assert@0.5.0".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000001".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/assert@0.5.0".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/assert@0.5.0"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+        lsp::CompletionItem {
+          label: "jsr:@std/assert@0.4.0".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000002".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/assert@0.4.0".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/assert@0.4.0"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+        lsp::CompletionItem {
+          label: "jsr:@std/assert@0.3.0".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000003".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/assert@0.3.0".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/assert@0.3.0"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+      ]
+    );
+  }
+
+  #[tokio::test]
+  async fn test_get_jsr_completions_for_exports() {
+    let temp_dir = TempDir::default();
+    let jsr_resolver = JsrResolver::from_cache_and_lockfile(
+      Arc::new(GlobalHttpCache::new(
+        temp_dir.path().to_path_buf(),
+        RealDenoCacheEnv,
+      )),
+      None,
+    );
+    let jsr_search_api = TestPackageSearchApi::default().with_package_version(
+      "@std/path",
+      "0.1.0",
+      &[".", "./basename", "./common", "./constants", "./dirname"],
+    );
+    let range = lsp::Range {
+      start: lsp::Position {
+        line: 0,
+        character: 23,
+      },
+      end: lsp::Position {
+        line: 0,
+        character: 45,
+      },
+    };
+    let referrer = ModuleSpecifier::parse("file:///referrer.ts").unwrap();
+    let actual = get_jsr_completions(
+      &referrer,
+      "jsr:@std/path@0.1.0/co",
+      &range,
+      &jsr_search_api,
+      &jsr_resolver,
+    )
+    .await
+    .unwrap();
+    assert_eq!(
+      actual,
+      vec![
+        lsp::CompletionItem {
+          label: "jsr:@std/path@0.1.0/common".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000003".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/path@0.1.0/common".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/path@0.1.0/common"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+        lsp::CompletionItem {
+          label: "jsr:@std/path@0.1.0/constants".to_string(),
+          kind: Some(lsp::CompletionItemKind::FILE),
+          detail: Some("(jsr)".to_string()),
+          sort_text: Some("0000000004".to_string()),
+          text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
+            range,
+            new_text: "jsr:@std/path@0.1.0/constants".to_string(),
+          })),
+          command: Some(lsp::Command {
+            title: "".to_string(),
+            command: "deno.cache".to_string(),
+            arguments: Some(vec![
+              json!(["jsr:@std/path@0.1.0/constants"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
+            ])
+          }),
+          commit_characters: Some(
+            IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
+          ),
+          ..Default::default()
+        },
+      ]
+    );
+  }
+
+  #[tokio::test]
+  async fn test_get_npm_completions() {
+    let npm_search_api = TestPackageSearchApi::default()
+      .with_package_version("puppeteer", "1.0.0", &[])
+      .with_package_version("puppeteer-core", "1.0.0", &[])
+      .with_package_version("puppeteer-extra-plugin", "1.0.0", &[])
+      .with_package_version("puppeteer-extra-plugin-stealth", "1.0.0", &[]);
     let range = lsp::Range {
       start: lsp::Position {
         line: 0,
@@ -922,7 +1328,11 @@ mod tests {
           command: Some(lsp::Command {
             title: "".to_string(),
             command: "deno.cache".to_string(),
-            arguments: Some(vec![json!(["npm:puppeteer"]), json!(&referrer)])
+            arguments: Some(vec![
+              json!(["npm:puppeteer"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
+            ])
           }),
           commit_characters: Some(
             IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
@@ -943,7 +1353,8 @@ mod tests {
             command: "deno.cache".to_string(),
             arguments: Some(vec![
               json!(["npm:puppeteer-core"]),
-              json!(&referrer)
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
@@ -952,20 +1363,21 @@ mod tests {
           ..Default::default()
         },
         lsp::CompletionItem {
-          label: "npm:puppeteer-extra-plugin-stealth".to_string(),
+          label: "npm:puppeteer-extra-plugin".to_string(),
           kind: Some(lsp::CompletionItemKind::FILE),
           detail: Some("(npm)".to_string()),
           sort_text: Some("0000000003".to_string()),
           text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
             range,
-            new_text: "npm:puppeteer-extra-plugin-stealth".to_string(),
+            new_text: "npm:puppeteer-extra-plugin".to_string(),
           })),
           command: Some(lsp::Command {
             title: "".to_string(),
             command: "deno.cache".to_string(),
             arguments: Some(vec![
-              json!(["npm:puppeteer-extra-plugin-stealth"]),
-              json!(&referrer)
+              json!(["npm:puppeteer-extra-plugin"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
@@ -974,20 +1386,21 @@ mod tests {
           ..Default::default()
         },
         lsp::CompletionItem {
-          label: "npm:puppeteer-extra-plugin".to_string(),
+          label: "npm:puppeteer-extra-plugin-stealth".to_string(),
           kind: Some(lsp::CompletionItemKind::FILE),
           detail: Some("(npm)".to_string()),
           sort_text: Some("0000000004".to_string()),
           text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
             range,
-            new_text: "npm:puppeteer-extra-plugin".to_string(),
+            new_text: "npm:puppeteer-extra-plugin-stealth".to_string(),
           })),
           command: Some(lsp::Command {
             title: "".to_string(),
             command: "deno.cache".to_string(),
             arguments: Some(vec![
-              json!(["npm:puppeteer-extra-plugin"]),
-              json!(&referrer)
+              json!(["npm:puppeteer-extra-plugin-stealth"]),
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
@@ -1001,19 +1414,11 @@ mod tests {
 
   #[tokio::test]
   async fn test_get_npm_completions_for_versions() {
-    let npm_search_api = TestNpmSearchApi::default();
-    npm_search_api
-      .1
-      .ensure_package_version("puppeteer", "20.9.0");
-    npm_search_api
-      .1
-      .ensure_package_version("puppeteer", "21.0.0");
-    npm_search_api
-      .1
-      .ensure_package_version("puppeteer", "21.0.1");
-    npm_search_api
-      .1
-      .ensure_package_version("puppeteer", "21.0.2");
+    let npm_search_api = TestPackageSearchApi::default()
+      .with_package_version("puppeteer", "20.9.0", &[])
+      .with_package_version("puppeteer", "21.0.0", &[])
+      .with_package_version("puppeteer", "21.0.1", &[])
+      .with_package_version("puppeteer", "21.0.2", &[]);
     let range = lsp::Range {
       start: lsp::Position {
         line: 0,
@@ -1046,7 +1451,8 @@ mod tests {
             command: "deno.cache".to_string(),
             arguments: Some(vec![
               json!(["npm:puppeteer@21.0.2"]),
-              json!(&referrer)
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
@@ -1068,7 +1474,8 @@ mod tests {
             command: "deno.cache".to_string(),
             arguments: Some(vec![
               json!(["npm:puppeteer@21.0.1"]),
-              json!(&referrer)
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
@@ -1090,7 +1497,8 @@ mod tests {
             command: "deno.cache".to_string(),
             arguments: Some(vec![
               json!(["npm:puppeteer@21.0.0"]),
-              json!(&referrer)
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
@@ -1112,7 +1520,8 @@ mod tests {
             command: "deno.cache".to_string(),
             arguments: Some(vec![
               json!(["npm:puppeteer@20.9.0"]),
-              json!(&referrer)
+              json!(&referrer),
+              json!({ "forceGlobalCache": true }),
             ])
           }),
           commit_characters: Some(
diff --git a/cli/lsp/documents.rs b/cli/lsp/documents.rs
index 419d08d50..276cae0a2 100644
--- a/cli/lsp/documents.rs
+++ b/cli/lsp/documents.rs
@@ -3,7 +3,7 @@
 use super::cache::calculate_fs_version;
 use super::cache::calculate_fs_version_at_path;
 use super::cache::LSP_DISALLOW_GLOBAL_TO_LOCAL_COPY;
-use super::jsr_resolver::JsrResolver;
+use super::jsr::JsrResolver;
 use super::language_server::StateNpmSnapshot;
 use super::text::LineIndex;
 use super::tsc;
diff --git a/cli/lsp/jsr_resolver.rs b/cli/lsp/jsr.rs
index 4abb0aec5..47a2c1e84 100644
--- a/cli/lsp/jsr_resolver.rs
+++ b/cli/lsp/jsr.rs
@@ -1,21 +1,29 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 
+use crate::args::jsr_api_url;
 use crate::args::jsr_url;
+use crate::file_fetcher::FileFetcher;
 use dashmap::DashMap;
 use deno_cache_dir::HttpCache;
+use deno_core::anyhow::anyhow;
+use deno_core::error::AnyError;
 use deno_core::parking_lot::Mutex;
 use deno_core::serde_json;
 use deno_core::ModuleSpecifier;
 use deno_graph::packages::JsrPackageInfo;
 use deno_graph::packages::JsrPackageVersionInfo;
 use deno_lockfile::Lockfile;
+use deno_runtime::permissions::PermissionsContainer;
 use deno_semver::jsr::JsrPackageReqReference;
 use deno_semver::package::PackageNv;
 use deno_semver::package::PackageReq;
+use deno_semver::Version;
+use serde::Deserialize;
 use std::borrow::Cow;
 use std::sync::Arc;
 
 use super::cache::LSP_DISALLOW_GLOBAL_TO_LOCAL_COPY;
+use super::search::PackageSearchApi;
 
 #[derive(Debug)]
 pub struct JsrResolver {
@@ -58,13 +66,8 @@ impl JsrResolver {
     }
   }
 
-  pub fn jsr_to_registry_url(
-    &self,
-    specifier: &ModuleSpecifier,
-  ) -> Option<ModuleSpecifier> {
-    let req_ref = JsrPackageReqReference::from_str(specifier.as_str()).ok()?;
-    let req = req_ref.req().clone();
-    let maybe_nv = self.nv_by_req.entry(req.clone()).or_insert_with(|| {
+  pub fn req_to_nv(&self, req: &PackageReq) -> Option<PackageNv> {
+    let nv = self.nv_by_req.entry(req.clone()).or_insert_with(|| {
       let name = req.name.clone();
       let maybe_package_info = self
         .info_by_name
@@ -72,9 +75,11 @@ impl JsrResolver {
         .or_insert_with(|| read_cached_package_info(&name, &self.cache));
       let package_info = maybe_package_info.as_ref()?;
       // Find the first matching version of the package which is cached.
-      let version = package_info
-        .versions
-        .keys()
+      let mut versions = package_info.versions.keys().collect::<Vec<_>>();
+      versions.sort();
+      let version = versions
+        .into_iter()
+        .rev()
         .find(|v| {
           if req.version_req.tag().is_some() || !req.version_req.matches(v) {
             return false;
@@ -94,6 +99,16 @@ impl JsrResolver {
         .cloned()?;
       Some(PackageNv { name, version })
     });
+    nv.value().clone()
+  }
+
+  pub fn jsr_to_registry_url(
+    &self,
+    specifier: &ModuleSpecifier,
+  ) -> Option<ModuleSpecifier> {
+    let req_ref = JsrPackageReqReference::from_str(specifier.as_str()).ok()?;
+    let req = req_ref.req().clone();
+    let maybe_nv = self.req_to_nv(&req);
     let nv = maybe_nv.as_ref()?;
     let maybe_info = self
       .info_by_nv
@@ -169,15 +184,117 @@ fn read_cached_package_version_info(
       LSP_DISALLOW_GLOBAL_TO_LOCAL_COPY,
     )
     .ok()??;
-  // This is a roundabout way of deserializing `JsrPackageVersionInfo`,
-  // because we only want the `exports` field and `module_graph` is large.
-  let mut info =
-    serde_json::from_slice::<serde_json::Value>(&meta_bytes).ok()?;
-  Some(JsrPackageVersionInfo {
-    manifest: Default::default(), // not used by the LSP (only caching checks this in deno_graph)
-    exports: info.as_object_mut()?.remove("exports")?,
-    module_graph: None,
-  })
+  partial_jsr_package_version_info_from_slice(&meta_bytes).ok()
+}
+
+#[derive(Debug, Clone)]
+pub struct CliJsrSearchApi {
+  file_fetcher: FileFetcher,
+  /// We only store this here so the completion system has access to a resolver
+  /// that always uses the global cache.
+  resolver: Arc<JsrResolver>,
+  search_cache: Arc<DashMap<String, Arc<Vec<String>>>>,
+  versions_cache: Arc<DashMap<String, Arc<Vec<Version>>>>,
+  exports_cache: Arc<DashMap<PackageNv, Arc<Vec<String>>>>,
+}
+
+impl CliJsrSearchApi {
+  pub fn new(file_fetcher: FileFetcher) -> Self {
+    let resolver = Arc::new(JsrResolver::from_cache_and_lockfile(
+      file_fetcher.http_cache().clone(),
+      None,
+    ));
+    Self {
+      file_fetcher,
+      resolver,
+      search_cache: Default::default(),
+      versions_cache: Default::default(),
+      exports_cache: Default::default(),
+    }
+  }
+
+  pub fn get_resolver(&self) -> &Arc<JsrResolver> {
+    &self.resolver
+  }
+}
+
+#[async_trait::async_trait]
+impl PackageSearchApi for CliJsrSearchApi {
+  async fn search(&self, query: &str) -> Result<Arc<Vec<String>>, AnyError> {
+    if let Some(names) = self.search_cache.get(query) {
+      return Ok(names.clone());
+    }
+    let mut search_url = jsr_api_url().clone();
+    search_url
+      .path_segments_mut()
+      .map_err(|_| anyhow!("Custom jsr URL cannot be a base."))?
+      .pop_if_empty()
+      .push("packages");
+    search_url.query_pairs_mut().append_pair("query", query);
+    let file = self
+      .file_fetcher
+      .fetch(&search_url, PermissionsContainer::allow_all())
+      .await?
+      .into_text_decoded()?;
+    let names = Arc::new(parse_jsr_search_response(&file.source)?);
+    self.search_cache.insert(query.to_string(), names.clone());
+    Ok(names)
+  }
+
+  async fn versions(&self, name: &str) -> Result<Arc<Vec<Version>>, AnyError> {
+    if let Some(versions) = self.versions_cache.get(name) {
+      return Ok(versions.clone());
+    }
+    let mut meta_url = jsr_url().clone();
+    meta_url
+      .path_segments_mut()
+      .map_err(|_| anyhow!("Custom jsr URL cannot be a base."))?
+      .pop_if_empty()
+      .push(name)
+      .push("meta.json");
+    let file = self
+      .file_fetcher
+      .fetch(&meta_url, PermissionsContainer::allow_all())
+      .await?;
+    let info = serde_json::from_slice::<JsrPackageInfo>(&file.source)?;
+    let mut versions = info.versions.into_keys().collect::<Vec<_>>();
+    versions.sort();
+    versions.reverse();
+    let versions = Arc::new(versions);
+    self
+      .versions_cache
+      .insert(name.to_string(), versions.clone());
+    Ok(versions)
+  }
+
+  async fn exports(
+    &self,
+    nv: &PackageNv,
+  ) -> Result<Arc<Vec<String>>, AnyError> {
+    if let Some(exports) = self.exports_cache.get(nv) {
+      return Ok(exports.clone());
+    }
+    let mut meta_url = jsr_url().clone();
+    meta_url
+      .path_segments_mut()
+      .map_err(|_| anyhow!("Custom jsr URL cannot be a base."))?
+      .pop_if_empty()
+      .push(&nv.name)
+      .push(&format!("{}_meta.json", &nv.version));
+    let file = self
+      .file_fetcher
+      .fetch(&meta_url, PermissionsContainer::allow_all())
+      .await?;
+    let info = partial_jsr_package_version_info_from_slice(&file.source)?;
+    let mut exports = info
+      .exports()
+      .map(|(n, _)| n.to_string())
+      .collect::<Vec<_>>();
+    exports.sort();
+    let exports = Arc::new(exports);
+    self.exports_cache.insert(nv.clone(), exports.clone());
+    Ok(exports)
+  }
 }
 
 // TODO(nayeemrmn): This is duplicated from a private function in deno_graph
@@ -203,3 +320,42 @@ fn normalize_export_name(sub_path: Option<&str>) -> Cow<str> {
     }
   }
 }
+
+/// This is a roundabout way of deserializing `JsrPackageVersionInfo`,
+/// because we only want the `exports` field and `module_graph` is large.
+fn partial_jsr_package_version_info_from_slice(
+  slice: &[u8],
+) -> serde_json::Result<JsrPackageVersionInfo> {
+  let mut info = serde_json::from_slice::<serde_json::Value>(slice)?;
+  Ok(JsrPackageVersionInfo {
+    manifest: Default::default(), // not used by the LSP (only caching checks this in deno_graph)
+    exports: info
+      .as_object_mut()
+      .and_then(|o| o.remove("exports"))
+      .unwrap_or_default(),
+    module_graph: None,
+  })
+}
+
+fn parse_jsr_search_response(source: &str) -> Result<Vec<String>, AnyError> {
+  #[derive(Debug, Deserialize)]
+  #[serde(rename_all = "camelCase")]
+  struct Item {
+    scope: String,
+    name: String,
+    version_count: usize,
+  }
+  #[derive(Debug, Deserialize)]
+  #[serde(rename_all = "camelCase")]
+  struct Response {
+    items: Vec<Item>,
+  }
+  let items = serde_json::from_str::<Response>(source)?.items;
+  Ok(
+    items
+      .into_iter()
+      .filter(|i| i.version_count > 0)
+      .map(|i| format!("@{}/{}", i.scope, i.name))
+      .collect(),
+  )
+}
diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index 45d1eed8a..4c7a96637 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -23,6 +23,7 @@ use deno_runtime::deno_tls::RootCertStoreProvider;
 use import_map::ImportMap;
 use indexmap::IndexSet;
 use log::error;
+use serde::Deserialize;
 use serde_json::from_value;
 use std::collections::BTreeMap;
 use std::collections::HashMap;
@@ -69,6 +70,7 @@ use super::documents::Documents;
 use super::documents::DocumentsFilter;
 use super::documents::LanguageId;
 use super::documents::UpdateDocumentConfigOptions;
+use super::jsr::CliJsrSearchApi;
 use super::logging::lsp_log;
 use super::logging::lsp_warn;
 use super::lsp_custom;
@@ -239,6 +241,7 @@ pub struct Inner {
   /// on disk or "open" within the client.
   pub documents: Documents,
   initial_cwd: PathBuf,
+  jsr_search_api: CliJsrSearchApi,
   http_client: Arc<HttpClient>,
   task_queue: LanguageServerTaskQueue,
   /// Handles module registries, which allow discovery of modules
@@ -280,10 +283,11 @@ impl LanguageServer {
 
   /// Similar to `deno cache` on the command line, where modules will be cached
   /// in the Deno cache, including any of their dependencies.
-  pub async fn cache_request(
+  pub async fn cache(
     &self,
     specifiers: Vec<ModuleSpecifier>,
     referrer: ModuleSpecifier,
+    force_global_cache: bool,
   ) -> LspResult<Option<Value>> {
     async fn create_graph_for_caching(
       cli_options: CliOptions,
@@ -333,7 +337,7 @@ impl LanguageServer {
     // do as much as possible in a read, then do a write outside
     let maybe_prepare_cache_result = {
       let inner = self.0.read().await; // ensure dropped
-      match inner.prepare_cache(specifiers, referrer) {
+      match inner.prepare_cache(specifiers, referrer, force_global_cache) {
         Ok(maybe_cache_result) => maybe_cache_result,
         Err(err) => {
           self
@@ -499,13 +503,23 @@ impl Inner {
       module_registries_location.clone(),
       http_client.clone(),
     );
-    let npm_search_api =
-      CliNpmSearchApi::new(module_registries.file_fetcher.clone(), None);
     let location = dir.deps_folder_path();
     let deps_http_cache = Arc::new(GlobalHttpCache::new(
       location,
       crate::cache::RealDenoCacheEnv,
     ));
+    let mut deps_file_fetcher = FileFetcher::new(
+      deps_http_cache.clone(),
+      CacheSetting::RespectHeaders,
+      true,
+      http_client.clone(),
+      Default::default(),
+      None,
+    );
+    deps_file_fetcher.set_download_log_level(super::logging::lsp_log_level());
+    let jsr_search_api = CliJsrSearchApi::new(deps_file_fetcher);
+    let npm_search_api =
+      CliNpmSearchApi::new(module_registries.file_fetcher.clone());
     let documents = Documents::new(deps_http_cache.clone());
     let cache_metadata = cache::CacheMetadata::new(deps_http_cache.clone());
     let performance = Arc::new(Performance::default());
@@ -535,6 +549,7 @@ impl Inner {
       documents,
       http_client,
       initial_cwd: initial_cwd.clone(),
+      jsr_search_api,
       maybe_global_cache_path: None,
       maybe_import_map: None,
       maybe_package_json: None,
@@ -832,14 +847,24 @@ impl Inner {
       module_registries_location.clone(),
       self.http_client.clone(),
     );
-    self.npm.search_api =
-      CliNpmSearchApi::new(self.module_registries.file_fetcher.clone(), None);
     self.module_registries_location = module_registries_location;
     // update the cache path
     let global_cache = Arc::new(GlobalHttpCache::new(
       dir.deps_folder_path(),
       crate::cache::RealDenoCacheEnv,
     ));
+    let mut deps_file_fetcher = FileFetcher::new(
+      global_cache.clone(),
+      CacheSetting::RespectHeaders,
+      true,
+      self.http_client.clone(),
+      Default::default(),
+      None,
+    );
+    deps_file_fetcher.set_download_log_level(super::logging::lsp_log_level());
+    self.jsr_search_api = CliJsrSearchApi::new(deps_file_fetcher);
+    self.npm.search_api =
+      CliNpmSearchApi::new(self.module_registries.file_fetcher.clone());
     let maybe_local_cache =
       self.config.maybe_vendor_dir_path().map(|local_path| {
         Arc::new(LocalLspHttpCache::new(local_path, global_cache.clone()))
@@ -1040,7 +1065,7 @@ impl Inner {
                 self.task_queue.queue_task(Box::new(|ls: LanguageServer| {
                   spawn(async move {
                     if let Err(err) =
-                      ls.cache_request(specifiers, referrer).await
+                      ls.cache(specifiers, referrer, false).await
                     {
                       lsp_warn!("{}", err);
                     }
@@ -2477,6 +2502,7 @@ impl Inner {
         &self.config.snapshot(),
         &self.client,
         &self.module_registries,
+        &self.jsr_search_api,
         &self.npm.search_api,
         &self.documents,
         self.maybe_import_map.clone(),
@@ -3166,14 +3192,20 @@ impl tower_lsp::LanguageServer for LanguageServer {
     params: ExecuteCommandParams,
   ) -> LspResult<Option<Value>> {
     if params.command == "deno.cache" {
-      let mut arguments = params.arguments.into_iter();
-      let specifiers = serde_json::to_value(arguments.next()).unwrap();
-      let specifiers: Vec<Url> = serde_json::from_value(specifiers)
-        .map_err(|err| LspError::invalid_params(err.to_string()))?;
-      let referrer = serde_json::to_value(arguments.next()).unwrap();
-      let referrer: Url = serde_json::from_value(referrer)
-        .map_err(|err| LspError::invalid_params(err.to_string()))?;
-      self.cache_request(specifiers, referrer).await
+      #[derive(Default, Deserialize)]
+      #[serde(rename_all = "camelCase")]
+      struct Options {
+        #[serde(default)]
+        force_global_cache: bool,
+      }
+      #[derive(Deserialize)]
+      struct Arguments(Vec<Url>, Url, #[serde(default)] Options);
+      let Arguments(specifiers, referrer, options) =
+        serde_json::from_value(json!(params.arguments))
+          .map_err(|err| LspError::invalid_params(err.to_string()))?;
+      self
+        .cache(specifiers, referrer, options.force_global_cache)
+        .await
     } else if params.command == "deno.reloadImportRegistries" {
       self.0.write().await.reload_import_registries().await
     } else {
@@ -3374,7 +3406,7 @@ impl tower_lsp::LanguageServer for LanguageServer {
       }
       specifier
     };
-    if let Err(err) = self.cache_request(vec![], specifier.clone()).await {
+    if let Err(err) = self.cache(vec![], specifier.clone(), false).await {
       lsp_warn!("Failed to cache \"{}\" on save: {}", &specifier, err);
     }
   }
@@ -3621,6 +3653,7 @@ impl Inner {
     &self,
     specifiers: Vec<ModuleSpecifier>,
     referrer: ModuleSpecifier,
+    force_global_cache: bool,
   ) -> Result<Option<PrepareCacheResult>, AnyError> {
     let mark = self
       .performance
@@ -3650,6 +3683,7 @@ impl Inner {
       self.config.maybe_config_file().cloned(),
       self.config.maybe_lockfile().cloned(),
       self.maybe_package_json.clone(),
+      force_global_cache,
     )?;
     cli_options.set_import_map_specifier(
       self.maybe_import_map.as_ref().map(|m| m.base_url().clone()),
diff --git a/cli/lsp/mod.rs b/cli/lsp/mod.rs
index ef6462524..f15d2a365 100644
--- a/cli/lsp/mod.rs
+++ b/cli/lsp/mod.rs
@@ -21,7 +21,7 @@ mod completions;
 mod config;
 mod diagnostics;
 mod documents;
-mod jsr_resolver;
+mod jsr;
 pub mod language_server;
 mod logging;
 mod lsp_custom;
@@ -32,6 +32,7 @@ mod performance;
 mod refactor;
 mod registries;
 mod repl;
+mod search;
 mod semantic_tokens;
 mod testing;
 mod text;
diff --git a/cli/lsp/npm.rs b/cli/lsp/npm.rs
index 613b7897e..59156fe88 100644
--- a/cli/lsp/npm.rs
+++ b/cli/lsp/npm.rs
@@ -1,56 +1,45 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 
-use std::collections::HashMap;
-use std::sync::Arc;
-
+use dashmap::DashMap;
 use deno_core::anyhow::anyhow;
 use deno_core::error::AnyError;
-use deno_core::parking_lot::Mutex;
 use deno_core::serde_json;
-use deno_core::url::Url;
 use deno_npm::registry::NpmPackageInfo;
 use deno_runtime::permissions::PermissionsContainer;
+use deno_semver::package::PackageNv;
+use deno_semver::Version;
 use serde::Deserialize;
+use std::sync::Arc;
 
 use crate::args::npm_registry_default_url;
 use crate::file_fetcher::FileFetcher;
 
-#[async_trait::async_trait]
-pub trait NpmSearchApi {
-  async fn search(&self, query: &str) -> Result<Arc<Vec<String>>, AnyError>;
-  async fn package_info(
-    &self,
-    name: &str,
-  ) -> Result<Arc<NpmPackageInfo>, AnyError>;
-}
+use super::search::PackageSearchApi;
 
 #[derive(Debug, Clone)]
 pub struct CliNpmSearchApi {
-  base_url: Url,
   file_fetcher: FileFetcher,
-  info_cache: Arc<Mutex<HashMap<String, Arc<NpmPackageInfo>>>>,
-  search_cache: Arc<Mutex<HashMap<String, Arc<Vec<String>>>>>,
+  search_cache: Arc<DashMap<String, Arc<Vec<String>>>>,
+  versions_cache: Arc<DashMap<String, Arc<Vec<Version>>>>,
 }
 
 impl CliNpmSearchApi {
-  pub fn new(file_fetcher: FileFetcher, custom_base_url: Option<Url>) -> Self {
+  pub fn new(file_fetcher: FileFetcher) -> Self {
     Self {
-      base_url: custom_base_url
-        .unwrap_or_else(|| npm_registry_default_url().clone()),
       file_fetcher,
-      info_cache: Default::default(),
       search_cache: Default::default(),
+      versions_cache: Default::default(),
     }
   }
 }
 
 #[async_trait::async_trait]
-impl NpmSearchApi for CliNpmSearchApi {
+impl PackageSearchApi for CliNpmSearchApi {
   async fn search(&self, query: &str) -> Result<Arc<Vec<String>>, AnyError> {
-    if let Some(names) = self.search_cache.lock().get(query) {
+    if let Some(names) = self.search_cache.get(query) {
       return Ok(names.clone());
     }
-    let mut search_url = self.base_url.clone();
+    let mut search_url = npm_registry_default_url().clone();
     search_url
       .path_segments_mut()
       .map_err(|_| anyhow!("Custom npm registry URL cannot be a base."))?
@@ -65,21 +54,15 @@ impl NpmSearchApi for CliNpmSearchApi {
       .await?
       .into_text_decoded()?;
     let names = Arc::new(parse_npm_search_response(&file.source)?);
-    self
-      .search_cache
-      .lock()
-      .insert(query.to_string(), names.clone());
+    self.search_cache.insert(query.to_string(), names.clone());
     Ok(names)
   }
 
-  async fn package_info(
-    &self,
-    name: &str,
-  ) -> Result<Arc<NpmPackageInfo>, AnyError> {
-    if let Some(info) = self.info_cache.lock().get(name) {
-      return Ok(info.clone());
+  async fn versions(&self, name: &str) -> Result<Arc<Vec<Version>>, AnyError> {
+    if let Some(versions) = self.versions_cache.get(name) {
+      return Ok(versions.clone());
     }
-    let mut info_url = self.base_url.clone();
+    let mut info_url = npm_registry_default_url().clone();
     info_url
       .path_segments_mut()
       .map_err(|_| anyhow!("Custom npm registry URL cannot be a base."))?
@@ -89,13 +72,22 @@ impl NpmSearchApi for CliNpmSearchApi {
       .file_fetcher
       .fetch(&info_url, PermissionsContainer::allow_all())
       .await?;
-    let info =
-      Arc::new(serde_json::from_slice::<NpmPackageInfo>(&file.source)?);
+    let info = serde_json::from_slice::<NpmPackageInfo>(&file.source)?;
+    let mut versions = info.versions.into_keys().collect::<Vec<_>>();
+    versions.sort();
+    versions.reverse();
+    let versions = Arc::new(versions);
     self
-      .info_cache
-      .lock()
-      .insert(name.to_string(), info.clone());
-    Ok(info)
+      .versions_cache
+      .insert(name.to_string(), versions.clone());
+    Ok(versions)
+  }
+
+  async fn exports(
+    &self,
+    _nv: &PackageNv,
+  ) -> Result<Arc<Vec<String>>, AnyError> {
+    Ok(Default::default())
   }
 }
 
diff --git a/cli/lsp/search.rs b/cli/lsp/search.rs
new file mode 100644
index 000000000..8933eeb18
--- /dev/null
+++ b/cli/lsp/search.rs
@@ -0,0 +1,79 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+use deno_core::error::AnyError;
+use deno_semver::package::PackageNv;
+use deno_semver::Version;
+use std::sync::Arc;
+
+#[async_trait::async_trait]
+pub trait PackageSearchApi {
+  async fn search(&self, query: &str) -> Result<Arc<Vec<String>>, AnyError>;
+  async fn versions(&self, name: &str) -> Result<Arc<Vec<Version>>, AnyError>;
+  async fn exports(&self, nv: &PackageNv)
+    -> Result<Arc<Vec<String>>, AnyError>;
+}
+
+#[cfg(test)]
+pub mod tests {
+  use super::*;
+  use deno_core::anyhow::anyhow;
+  use std::collections::BTreeMap;
+
+  #[derive(Debug, Default)]
+  pub struct TestPackageSearchApi {
+    /// [(name -> [(version -> [export])])]
+    package_versions: BTreeMap<String, BTreeMap<Version, Vec<String>>>,
+  }
+
+  impl TestPackageSearchApi {
+    pub fn with_package_version(
+      mut self,
+      name: &str,
+      version: &str,
+      exports: &[&str],
+    ) -> Self {
+      let exports_by_version =
+        self.package_versions.entry(name.to_string()).or_default();
+      exports_by_version.insert(
+        Version::parse_standard(version).unwrap(),
+        exports.iter().map(|s| s.to_string()).collect(),
+      );
+      self
+    }
+  }
+
+  #[async_trait::async_trait]
+  impl PackageSearchApi for TestPackageSearchApi {
+    async fn search(&self, query: &str) -> Result<Arc<Vec<String>>, AnyError> {
+      let names = self
+        .package_versions
+        .keys()
+        .filter_map(|n| n.contains(query).then(|| n.clone()))
+        .collect::<Vec<_>>();
+      Ok(Arc::new(names))
+    }
+
+    async fn versions(
+      &self,
+      name: &str,
+    ) -> Result<Arc<Vec<Version>>, AnyError> {
+      let Some(exports_by_version) = self.package_versions.get(name) else {
+        return Err(anyhow!("Package not found."));
+      };
+      Ok(Arc::new(exports_by_version.keys().rev().cloned().collect()))
+    }
+
+    async fn exports(
+      &self,
+      nv: &PackageNv,
+    ) -> Result<Arc<Vec<String>>, AnyError> {
+      let Some(exports_by_version) = self.package_versions.get(&nv.name) else {
+        return Err(anyhow!("Package not found."));
+      };
+      let Some(exports) = exports_by_version.get(&nv.version) else {
+        return Err(anyhow!("Package version not found."));
+      };
+      Ok(Arc::new(exports.clone()))
+    }
+  }
+}