2 files changed, 36 insertions, 2 deletions
diff --git a/cli/args/lockfile.rs b/cli/args/lockfile.rs
index 012d9782e..1b5eddf3a 100644
--- a/cli/args/lockfile.rs
+++ b/cli/args/lockfile.rs
@@ -19,6 +19,8 @@ use crate::tools::fmt::format_json;
 use crate::util;
 use crate::Flags;
 
+use super::DenoSubcommand;
+
 #[derive(Debug)]
 pub struct LockfileError(String);
 
@@ -96,7 +98,12 @@ impl Lockfile {
     flags: &Flags,
     maybe_config_file: Option<&ConfigFile>,
   ) -> Result<Option<Lockfile>, AnyError> {
-    if flags.no_lock {
+    if flags.no_lock
+      || matches!(
+        flags.subcommand,
+        DenoSubcommand::Install(_) | DenoSubcommand::Uninstall(_)
+      )
+    {
       return Ok(None);
     }
 
diff --git a/cli/tests/install_tests.rs b/cli/tests/install_tests.rs
index 4016b6373..3d799ce53 100644
--- a/cli/tests/install_tests.rs
+++ b/cli/tests/install_tests.rs
@@ -16,6 +16,9 @@ mod install {
     let temp_dir = TempDir::new();
     let temp_dir_str = temp_dir.path().to_string_lossy().to_string();
 
+    // ensure a lockfile doesn't get created or updated locally
+    temp_dir.write("deno.json", "{}");
+
     let status = util::deno_cmd()
       .current_dir(temp_dir.path())
       .arg("install")
@@ -34,6 +37,9 @@ mod install {
       .unwrap();
     assert!(status.success());
 
+    // no lockfile should be created locally
+    assert!(!temp_dir.path().join("deno.lock").exists());
+
     let mut file_path = temp_dir.path().join(".deno/bin/echo_test");
     assert!(file_path.exists());
 
@@ -41,7 +47,7 @@ mod install {
       file_path = file_path.with_extension("cmd");
     }
 
-    let content = fs::read_to_string(file_path).unwrap();
+    let content = fs::read_to_string(&file_path).unwrap();
     // ensure there's a trailing newline so the shell script can be
     // more versatile.
     assert_eq!(content.chars().last().unwrap(), '\n');
@@ -57,6 +63,27 @@ mod install {
         r#"run --check 'http://localhost:4545/echo.ts'"#
       );
     }
+
+    // now uninstall
+    let status = util::deno_cmd()
+      .current_dir(temp_dir.path())
+      .arg("uninstall")
+      .arg("echo_test")
+      .envs([
+        ("HOME", temp_dir_str.as_str()),
+        ("USERPROFILE", temp_dir_str.as_str()),
+        ("DENO_INSTALL_ROOT", ""),
+      ])
+      .spawn()
+      .unwrap()
+      .wait()
+      .unwrap();
+    assert!(status.success());
+
+    // ensure local lockfile still doesn't exist
+    assert!(!temp_dir.path().join("deno.lock").exists());
+    // ensure uninstall occurred
+    assert!(!file_path.exists());
   }
 
   #[test]