ci: reduce native test compilation and artifact upload overhead

.github/ci-profile.toml

@@ -0,0 +1,23 @@
+# Test compilation only; packaging continues to use profile.release.
+# Named dependency overrides take precedence over "*", so reset those too.
+[profile.ci]
+inherits = "dev"
+opt-level = 0
+debug = 0
+debug-assertions = true
+overflow-checks = true
+split-debuginfo = "off"
+incremental = false
+codegen-units = 256
+lto = false
+
+[profile.ci.package]
+"*" = { opt-level = 0 }
+resvg = { opt-level = 0 }
+rustybuzz = { opt-level = 0 }
+taffy = { opt-level = 0 }
+ttf-parser = { opt-level = 0 }
+smol = { opt-level = 0 }
+gpui = { opt-level = 0 }
+gpui_macros = { opt-level = 0 }
+nebula_terminal = { opt-level = 0 }

.github/workflows/linux-lua.yml

@@ -10,6 +10,7 @@ on:
       - "Cargo.lock"
       - "rust-toolchain.toml"
       - ".github/workflows/linux-lua.yml"
+      - ".github/ci-profile.toml"
   pull_request:
     paths:
       - "**/*.rs"
@@ -18,6 +19,7 @@ on:
       - "Cargo.lock"
       - "rust-toolchain.toml"
       - ".github/workflows/linux-lua.yml"
+      - ".github/ci-profile.toml"
 
 permissions:
   contents: read

.github/workflows/release.yml

@@ -174,6 +174,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: native-timings-${{ matrix.platform }}
           path: target/cargo-timings
           if-no-files-found: warn
@@ -283,6 +284,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-package-linux-x64
           path: |
             dist/*.AppImage
@@ -294,6 +296,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-evidence-linux-x64
           path: dist/conformance
           if-no-files-found: warn
@@ -424,6 +427,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-package-macos-${{ matrix.asset_architecture }}
           path: dist/*.dmg
           if-no-files-found: error
@@ -432,6 +436,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-evidence-macos-${{ matrix.architecture }}
           path: dist/conformance
           if-no-files-found: warn
@@ -502,6 +507,7 @@ jobs:
       - name: Retain built Windows runtime before packaging
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-runtime-windows-x64
           path: |
             target/release/pebrel.exe
@@ -536,6 +542,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-package-windows-x64
           path: |
             dist/Pebrel-v${{ needs.prepare.outputs.version }}-windows-x64.zip
@@ -546,6 +553,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: stable-evidence-windows-x64
           path: dist/conformance
           if-no-files-found: warn
@@ -593,6 +601,7 @@ jobs:
       - name: Upload complete stable release set
         uses: actions/upload-artifact@v4
         with:
+          compression-level: 0
           name: Pebrel-v${{ needs.prepare.outputs.version }}
           path: release-dist
           if-no-files-found: error

docs/architecture-decisions.md

@@ -434,6 +434,11 @@ settings files.
   platform still runs the complete Python helper and harness suites. Cache keys
   preserve the existing platform namespace and retain workspace crates. Cargo
   still validates source, profile and feature fingerprints before reuse.
+- **Test profile:** An explicit CI-only profile removes developer-preview
+  optimization and debug information from test compilation, including named
+  dependency overrides. It retains debug assertions and overflow checks. The
+  native suite also checks the actual product feature configuration, since GPUI
+  test support changes dependency features. Release optimization is unaffected.
 - **Product compilation:** The application keeps O3 and Thin LTO and uses 16
   codegen units to parallelize its large translation unit. Other package settings
   retain their existing values. Both Windows packagers call one explicit builder

scripts/ci_native_tests.py

@@ -8,11 +8,16 @@ import sys
 
 
 def native_commands() -> list[list[str]]:
+    profile = ["--config", ".github/ci-profile.toml", "--profile", "ci"]
     return [
         [sys.executable, "-m", "unittest", "discover", "-s", "scripts/tests", "-v"],
         [sys.executable, "-m", "unittest", "discover", "-s", "scripts/conformance/tests", "-v"],
         [
-            "cargo", "test", "--locked", "--workspace",
+            "cargo", "check", "--locked", *profile, "-p", "nebula", "--bin", "pebrel",
+            "--features", "gpui-shell", "--timings",
+        ],
+        [
+            "cargo", "test", "--locked", *profile, "--workspace",
             "--features", "nebula/gpui-test-support", "--timings",
         ],
     ]

scripts/tests/test_ci_native_tests.py

@@ -1,6 +1,8 @@
 from __future__ import annotations
 
 import subprocess
+from pathlib import Path
+import tomllib
 import unittest
 from unittest.mock import patch
 
@@ -9,7 +11,7 @@ from scripts.ci_native_tests import main, native_commands
 
 class NativeSuiteTests(unittest.TestCase):
     def test_full_workspace_and_interactions_share_one_unfiltered_invocation(self):
-        rust = [command for command in native_commands() if command[0] == "cargo"]
+        rust = [command for command in native_commands() if command[:2] == ["cargo", "test"]]
         self.assertEqual(len(rust), 1)
         command = rust[0]
         self.assertEqual(command[1], "test")
@@ -21,6 +23,25 @@ class NativeSuiteTests(unittest.TestCase):
         self.assertNotIn("--skip", command)
         self.assertNotIn("--", command)
 
+    def test_actual_product_feature_graph_is_also_checked(self):
+        checks = [command for command in native_commands() if command[:2] == ["cargo", "check"]]
+        self.assertEqual(len(checks), 1)
+        command = checks[0]
+        self.assertEqual(command[command.index("--features") + 1], "gpui-shell")
+        self.assertEqual(command[command.index("--bin") + 1], "pebrel")
+
+    def test_fast_test_profile_preserves_runtime_checks_and_resets_named_overrides(self):
+        root = Path(__file__).resolve().parents[2]
+        config = tomllib.loads((root / ".github/ci-profile.toml").read_text())
+        workspace = tomllib.loads((root / "Cargo.toml").read_text())
+        profile = config["profile"]["ci"]
+        self.assertEqual(profile["inherits"], "dev")
+        self.assertTrue(profile["debug-assertions"])
+        self.assertTrue(profile["overflow-checks"])
+        for package in workspace["profile"]["dev"]["package"]:
+            self.assertEqual(profile["package"][package]["opt-level"], 0)
+        self.assertNotIn("release", config["profile"])
+
     def test_both_python_test_roots_are_discovered(self):
         suites = [command for command in native_commands() if "unittest" in command]
         self.assertEqual(