build(verify): move the recording stimulus helper into its own crate

The stimulus binary's window, audio and Foundation dependencies (winit,
softbuffer, cpal, objc2-foundation) lived in cap-verify, which the GPUI app
uses for its caption and upload verification tests, so its lock file and
macOS test build would have grown by the whole winit stack. The helper is now
the cap-verify-stimulus crate; the recording test finds it next to its own
target profile directory (or CAP_VERIFY_STIMULUS_BIN), and the workflow
builds it first.

Author: richiemcilroy

.github/workflows/verify-recording.yml

@@ -170,6 +170,7 @@ jobs:
       - name: Build
         run: |
           start=$(date +%s)
+          cargo build --locked -p cap-verify-stimulus
           cargo test --locked -p cap-verify --test recording --no-run
           echo "build seconds: $(( $(date +%s) - start ))"
 

Cargo.lock

@@ -0,0 +1,26 @@
+[package]
+name = "cap-verify-stimulus"
+version = "0.1.0"
+edition = "2024"
+publish = false
+description = "Helper process of the real-capture recording oracle (crates/verify/tests/recording.rs): shows screen markers and plays system-audio markers"
+
+[lints]
+workspace = true
+
+[[bin]]
+name = "cap-verify-stimulus"
+path = "src/main.rs"
+
+[dependencies]
+cap-verify = { path = "../verify" }
+anyhow = { workspace = true }
+serde_json = "1"
+workspace-hack = { version = "0.1", path = "../workspace-hack" }
+
+[target.'cfg(target_os = "macos")'.dependencies]
+cidre = { workspace = true }
+cpal = { workspace = true }
+objc2-foundation = "0.3.1"
+softbuffer = "0.4"
+winit = "0.30"

crates/verify-stimulus/Cargo.toml

@@ -28,10 +28,6 @@ workspace-hack = { version = "0.1", path = "../workspace-hack" }
 [target.'cfg(target_os = "macos")'.dependencies]
 cap-enc-avfoundation = { path = "../enc-avfoundation" }
 cidre = { workspace = true }
-cpal = { workspace = true }
-objc2-foundation = "0.3.1"
-softbuffer = "0.4"
-winit = "0.30"
 
 [dev-dependencies]
 cap-recording = { path = "../recording", features = ["test-utils"] }
@@ -44,8 +40,3 @@ tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
 [target.'cfg(target_os = "macos")'.dev-dependencies]
 scap-targets = { path = "../scap-targets" }
-
-[[bin]]
-name = "cap-verify-stimulus"
-path = "src/bin/stimulus.rs"
-test = false

crates/verify/src/bin/stimulus.rs crates/verify-stimulus/src/main.rscrates/verify/src/bin/stimulus.rs renamed to crates/verify-stimulus/src/main.rs

@@ -700,7 +700,22 @@ fn studio_builder(
 fn stimulus_binary() -> PathBuf {
     std::env::var_os("CAP_VERIFY_STIMULUS_BIN")
         .map(PathBuf::from)
-        .unwrap_or_else(|| PathBuf::from(env!("CARGO_BIN_EXE_cap-verify-stimulus")))
+        .unwrap_or_else(|| {
+            // Built by `cargo build -p cap-verify-stimulus` into the same
+            // target directory as this test (target/<profile>/deps/..).
+            let exe = std::env::current_exe().expect("test executable path");
+            let path = exe
+                .parent()
+                .and_then(|deps| deps.parent())
+                .expect("target profile directory")
+                .join("cap-verify-stimulus");
+            assert!(
+                path.exists(),
+                "{} not found: build it first with `cargo build -p cap-verify-stimulus` (same profile), or set CAP_VERIFY_STIMULUS_BIN",
+                path.display()
+            );
+            path
+        })
 }
 
 fn find_window(title: &str) -> Option<scap_targets::WindowId> {