Allow --check and --locked to be used together in uv lock (#16538)

See https://github.com/astral-sh/uv/issues/16517#issuecomment-3473747461

crates/uv-cli/src/lib.rs

@@ -3753,7 +3753,7 @@ pub struct LockArgs {
     /// missing or needs to be updated, uv will exit with an error.
     ///
     /// Equivalent to `--locked`.
-    #[arg(long, value_parser = clap::builder::BoolishValueParser::new(), conflicts_with_all = ["check_exists", "upgrade", "locked"])]
+    #[arg(long, value_parser = clap::builder::BoolishValueParser::new(), conflicts_with_all = ["check_exists", "upgrade"], overrides_with = "check")]
     pub check: bool,
 
     /// Check if the lockfile is up-to-date.
@@ -3762,7 +3762,7 @@ pub struct LockArgs {
     /// missing or needs to be updated, uv will exit with an error.
     ///
     /// Equivalent to `--check`.
-    #[arg(long, env = EnvVars::UV_LOCKED, value_parser = clap::builder::BoolishValueParser::new(), conflicts_with_all = ["check_exists", "upgrade", "check"], hide = true)]
+    #[arg(long, env = EnvVars::UV_LOCKED, value_parser = clap::builder::BoolishValueParser::new(), conflicts_with_all = ["check_exists", "upgrade"], hide = true)]
     pub locked: bool,
 
     /// Assert that a `uv.lock` exists without checking if it is up-to-date.

crates/uv/tests/it/lock.rs

@@ -13392,6 +13392,19 @@ fn check_outdated_lock() -> Result<()> {
     Resolved 2 packages in [TIME]
     The lockfile at `uv.lock` needs to be updated, but `--check` was provided. To update the lockfile, run `uv lock`.
     ");
+
+    // Providing both `--check` and `--locked` is okay
+    uv_snapshot!(context.filters(), context.lock()
+        .arg("--check").arg("--locked"), @r"
+    success: false
+    exit_code: 1
+    ----- stdout -----
+
+    ----- stderr -----
+    Resolved 2 packages in [TIME]
+    The lockfile at `uv.lock` needs to be updated, but `--check` was provided. To update the lockfile, run `uv lock`.
+    ");
+
     Ok(())
 }