Setup global cargo lint configuration (#13691)

# Description
`cargo` somewhat recently gained the capability to store `lints`
settings for the crate and workspace, that can override the defaults
from `rustc` and `clippy` lints. This means we can enforce some lints
without having to actively pass them to clippy via `cargo clippy -- -W
...`. So users just forking the repo have an easier time to follow
similar requirements like our CI.

## Limitation

An exception that remains is that those lints apply to both the primary
code base and the tests. Thus we can't include e.g. `unwrap_used`
without generating noise in the tests. Here the setup in the CI remains
the most helpful.

## Included lints

- Add `clippy::unchecked_duration_subtraction` (added by #12549)
# User-Facing Changes
Running `cargo clippy --workspace` should be closer to the CI. This has
benefits for editor configured runs of clippy and saves you from having
to use `toolkit` to be close to CI in more cases.

Cargo.toml

@@ -180,6 +180,14 @@ windows = "0.54"
 windows-sys = "0.48"
 winreg = "0.52"
 
+[workspace.lints.clippy]
+# Warning: workspace lints affect library code as well as tests, so don't enable lints that would be too noisy in tests like that.
+# todo = "warn"
+unchecked_duration_subtraction = "warn"
+
+[lints]
+workspace = true
+
 [dependencies]
 nu-cli = { path = "./crates/nu-cli", version = "0.97.2" }
 nu-cmd-base = { path = "./crates/nu-cmd-base", version = "0.97.2" }

crates/nu-cli/Cargo.toml

@@ -47,3 +47,6 @@ which = { workspace = true }
 [features]
 plugin = ["nu-plugin-engine"]
 system-clipboard = ["reedline/system_clipboard"]
+
+[lints]
+workspace = true

crates/nu-cmd-base/Cargo.toml

@@ -9,6 +9,9 @@ version = "0.97.2"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-engine = { path = "../nu-engine", version = "0.97.2" }
 nu-parser = { path = "../nu-parser", version = "0.97.2" }

crates/nu-cmd-extra/Cargo.toml

@@ -12,6 +12,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-cmd-base = { path = "../nu-cmd-base", version = "0.97.2" }
 nu-engine = { path = "../nu-engine", version = "0.97.2" }

crates/nu-cmd-lang/Cargo.toml

@@ -11,6 +11,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-engine = { path = "../nu-engine", version = "0.97.2" }
 nu-parser = { path = "../nu-parser", version = "0.97.2" }

crates/nu-cmd-plugin/Cargo.toml

@@ -9,6 +9,9 @@ version = "0.97.2"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-engine = { path = "../nu-engine", version = "0.97.2" }
 nu-path = { path = "../nu-path", version = "0.97.2" }

crates/nu-color-config/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-protocol = { path = "../nu-protocol", version = "0.97.2" }
 nu-engine = { path = "../nu-engine", version = "0.97.2" }

crates/nu-command/Cargo.toml

@@ -12,6 +12,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-cmd-base = { path = "../nu-cmd-base", version = "0.97.2" }
 nu-color-config = { path = "../nu-color-config", version = "0.97.2" }

crates/nu-derive-value/Cargo.toml

@@ -13,6 +13,9 @@ proc-macro = true
 # so we cannot test anything useful in a doctest
 doctest = false 
 
+[lints]
+workspace = true
+
 [dependencies]
 proc-macro2 = { workspace = true }
 syn = { workspace = true }

crates/nu-engine/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-protocol = { path = "../nu-protocol", features = ["plugin"], version = "0.97.2" }
 nu-path = { path = "../nu-path", version = "0.97.2" }

crates/nu-explore/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-protocol = { path = "../nu-protocol", version = "0.97.2" }
 nu-parser = { path = "../nu-parser", version = "0.97.2" }

crates/nu-glob/Cargo.toml

@@ -15,3 +15,6 @@ bench = false
 
 [dev-dependencies]
 doc-comment = "0.3"
+
+[lints]
+workspace = true

crates/nu-json/Cargo.toml

@@ -30,3 +30,6 @@ nu-test-support = { path = "../nu-test-support", version = "0.97.2" }
 nu-path = { path = "../nu-path", version = "0.97.2" }
 serde_json = "1.0"
 fancy-regex = "0.13.0"
+
+[lints]
+workspace = true

crates/nu-lsp/Cargo.toml

@@ -28,3 +28,6 @@ nu-command = { path = "../nu-command", version = "0.97.2" }
 nu-test-support = { path = "../nu-test-support", version = "0.97.2" }
 
 assert-json-diff = "2.0"
+
+[lints]
+workspace = true

crates/nu-parser/Cargo.toml

@@ -11,6 +11,9 @@ exclude = ["/fuzz"]
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-engine = { path = "../nu-engine", version = "0.97.2" }
 nu-path = { path = "../nu-path", version = "0.97.2" }

crates/nu-path/Cargo.toml

@@ -19,3 +19,6 @@ omnipath = { workspace = true }
 
 [target.'cfg(all(unix, not(target_os = "macos"), not(target_os = "android")))'.dependencies]
 pwd = { workspace = true }
+
+[lints]
+workspace = true

crates/nu-plugin-core/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-protocol = { path = "../nu-protocol", version = "0.97.2" }
 nu-plugin-protocol = { path = "../nu-plugin-protocol", version = "0.97.2", default-features = false }

crates/nu-plugin-engine/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-engine = { path = "../nu-engine", version = "0.97.2" }
 nu-protocol = { path = "../nu-protocol", version = "0.97.2" }

crates/nu-plugin-engine/src/gc.rs

@@ -244,7 +244,7 @@ mod tests {
         let mut state = test_state();
         state.config.enabled = true;
         state.config.stop_after = Duration::from_secs(1).as_nanos() as i64;
-        state.last_update = Some(now - Duration::from_secs(2));
+        state.last_update = Some(now.checked_sub(Duration::from_secs(2)).unwrap());
 
         assert_eq!(Some(Duration::ZERO), state.next_timeout(now));
     }
@@ -295,7 +295,8 @@ mod tests {
     #[test]
     fn adding_locks_changes_last_update() {
         let mut state = test_state();
-        let original_last_update = Some(Instant::now() - Duration::from_secs(1));
+        let original_last_update =
+            Some(Instant::now().checked_sub(Duration::from_secs(1)).unwrap());
         state.last_update = original_last_update;
         state.handle_message(PluginGcMsg::AddLocks(1));
         assert_ne!(original_last_update, state.last_update, "not updated");

crates/nu-plugin-protocol/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-protocol = { path = "../nu-protocol", version = "0.97.2", features = ["plugin"] }
 nu-utils = { path = "../nu-utils", version = "0.97.2" }

crates/nu-plugin-test-support/Cargo.toml

@@ -9,6 +9,9 @@ repository = "https://github.com/nushell/nushell/tree/main/crates/nu-plugin-test
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]

crates/nu-plugin/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-engine = { path = "../nu-engine", version = "0.97.2" }
 nu-protocol = { path = "../nu-protocol", version = "0.97.2" }

crates/nu-pretty-hex/Cargo.toml

@@ -13,6 +13,9 @@ name = "nu_pretty_hex"
 path = "src/lib.rs"
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-ansi-term = { workspace = true }
 

crates/nu-protocol/Cargo.toml

@@ -12,6 +12,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-utils = { path = "../nu-utils", version = "0.97.2" }
 nu-path = { path = "../nu-path", version = "0.97.2" }

crates/nu-std/Cargo.toml

@@ -14,3 +14,6 @@ nu-engine = { version = "0.97.2", path = "../nu-engine" }
 miette = { workspace = true, features = ["fancy-no-backtrace"] }
 
 log = "0.4"
+
+[lints]
+workspace = true

crates/nu-system/Cargo.toml

@@ -12,6 +12,9 @@ license = "MIT"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 libc = { workspace = true }
 log = { workspace = true }

crates/nu-table/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-protocol = { path = "../nu-protocol", version = "0.97.2" }
 nu-utils = { path = "../nu-utils", version = "0.97.2" }

crates/nu-term-grid/Cargo.toml

@@ -10,6 +10,9 @@ version = "0.97.2"
 [lib]
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-utils = { path = "../nu-utils", version = "0.97.2" }
 

crates/nu-test-support/Cargo.toml

@@ -11,6 +11,9 @@ version = "0.97.2"
 doctest = false
 bench = false
 
+[lints]
+workspace = true
+
 [dependencies]
 nu-path = { path = "../nu-path", version = "0.97.2" }
 nu-glob = { path = "../nu-glob", version = "0.97.2" }

crates/nu-utils/Cargo.toml

@@ -30,3 +30,6 @@ crossterm_winapi = "0.9"
 
 [target.'cfg(unix)'.dependencies]
 nix = { workspace = true, default-features = false, features = ["user", "fs"] }
+
+[lints]
+workspace = true

crates/nuon/Cargo.toml

@@ -18,3 +18,6 @@ fancy-regex = { workspace = true }
 
 [dev-dependencies]
 chrono = { workspace = true }
+
+[lints]
+workspace = true