feat(pm): forward --filter to bun update on bun 1.4

bun update previously dropped --filter silently; bun before 1.4 now
warns before dropping it, and 1.4 or newer receives the flag. Covered
by resolution unit tests and a bun 1.4 workspace PTY snapshot case.

Refs #2460

Author: jong-kyung

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_update_bun_with_workspace/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "command-update-bun-with-workspace",
+  "version": "1.0.0",
+  "workspaces": ["packages/*"],
+  "packageManager": "bun@1.4.0"
+}

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_update_bun_with_workspace/packages/app/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "app",
+  "dependencies": {
+    "testnpm2": "^1.0.0"
+  }
+}

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_update_bun_with_workspace/snapshots.toml

@@ -0,0 +1,9 @@
+[[case]]
+name = "command_update_bun_with_workspace"
+vp = "global"
+skip-platforms = ["windows"]
+steps = [
+  { argv = ["vp", "install", "--", "--silent"], comment = "should install packages first", continue-on-failure = true },
+  { argv = ["vp", "update", "testnpm2", "--filter", "app", "--", "--silent"], comment = "should update package in packages/app" },
+  { argv = ["vpt", "print-file", "packages/app/package.json"], continue-on-failure = true },
+]

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_update_bun_with_workspace/snapshots/command_update_bun_with_workspace.md

@@ -0,0 +1,27 @@
+# command_update_bun_with_workspace
+
+## `vp install -- --silent`
+
+should install packages first
+
+```
+VITE+ - The Unified Toolchain for the Web
+```
+
+## `vp update testnpm2 --filter app -- --silent`
+
+should update package in packages/app
+
+```
+```
+
+## `vpt print-file packages/app/package.json`
+
+```
+{
+  "name": "app",
+  "dependencies": {
+    "testnpm2": "^1.0.1"
+  }
+}
+```

crates/vp_pm_cli/src/resolution/commands/update.rs

@@ -33,7 +33,7 @@ pub struct UpdateArgs {
     pub(crate) recursive: bool,
 
     /// Filter packages in monorepo (can be used multiple times)
-    #[arg(long, value_name = "PATTERN")]
+    #[arg(long, value_name = "PATTERN", not_supported(bun < "1.4"))]
     pub(crate) filter: Vec<String>,
 
     /// Include workspace root
@@ -152,6 +152,7 @@ impl Resolve<UpdateArgs> for Bun {
     fn resolve(&self, args: &UpdateArgs, _diag: &mut Diagnostics) -> CommandResolution {
         let mut cmd = CommandBuilder::new("bun");
         cmd.arg("update")
+            .repeated("--filter", args.filter.iter())
             .arg_if("--latest", args.latest)
             .arg_if("--interactive", args.interactive)
             .arg_if("--production", args.prod);
@@ -599,4 +600,26 @@ mod tests {
         assert_eq!(command.program, "bun");
         assert_eq!(command.args, vec!["update", "--recursive"]);
     }
+
+    #[test]
+    fn test_bun_update_with_filter() {
+        let options = UpdateArgs { filter: vec!["web".to_string()], ..Default::default() };
+        let resolution = resolve(&bun("1.4.0"), options);
+        let command = expect_run(resolution.outcome);
+
+        assert_eq!(command.program, "bun");
+        assert_eq!(command.args, vec!["update", "--filter", "web"]);
+        assert!(resolution.diagnostics.is_empty());
+    }
+
+    #[test]
+    fn test_bun_update_drops_filter_before_1_4() {
+        let options = UpdateArgs { filter: vec!["web".to_string()], ..Default::default() };
+        let resolution = resolve(&bun("1.3.11"), options);
+        let command = expect_run(resolution.outcome);
+
+        assert_eq!(command.program, "bun");
+        assert_eq!(command.args, vec!["update"]);
+        assert_eq!(resolution.diagnostics[0].message, "bun <1.4 does not support --filter.");
+    }
 }