From 28b23fdc635d4de5e168a00379e23f43fbe95a02 Mon Sep 17 00:00:00 2001
From: Michal R <vad.sol@proton.me>
Date: Sun, 28 Sep 2025 19:25:28 +0200
Subject: [PATCH 1/2] fix: Allow to build with `autostart` and without
 `systemd` feature

Before this change, import of `systemd::is_systemd_used` was hidden
behind `cfg(feature = "systemd")` predicate. But that function is
expected to be present in the autostart block even if `systemd` feature
is disabled.

Fix that by importing `is_systemd_used` unconditionally.

Provide an implementation of `is_systemd_used` for
`cfg(not(feature = "systemd"))` which just returns `false`.

Fixes: #136
---
 src/main.rs    | 3 ++-
 src/systemd.rs | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index a6716af..c26a01f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -30,8 +30,9 @@ use std::{
 	os::fd::{AsRawFd, OwnedFd},
 	sync::Arc,
 };
+use systemd::is_systemd_used;
 #[cfg(feature = "systemd")]
-use systemd::{get_systemd_env, is_systemd_used, spawn_scope};
+use systemd::{get_systemd_env, spawn_scope};
 use tokio::{
 	net::UnixStream,
 	sync::{
diff --git a/src/systemd.rs b/src/systemd.rs
index 6cbfa02..e0b656c 100644
--- a/src/systemd.rs
+++ b/src/systemd.rs
@@ -52,10 +52,15 @@ pub fn stop_systemd_target() {
 
 /// Determine if systemd is used as the init system. This should work on all
 /// linux distributions.
+#[cfg(feature = "systemd")]
 pub fn is_systemd_used() -> &'static bool {
 	static IS_SYSTEMD_USED: OnceLock<bool> = OnceLock::new();
 	IS_SYSTEMD_USED.get_or_init(|| Path::new("/run/systemd/system").exists())
 }
+#[cfg(not(feature = "systemd"))]
+pub fn is_systemd_used() -> &'static bool {
+	&false
+}
 
 #[cfg(feature = "systemd")]
 pub async fn get_systemd_env() -> Result<Vec<EnvVar>, zbus::Error> {

From 4d4ef0dd337b0ac9c1a9e7ec4c6b89d910c96f8d Mon Sep 17 00:00:00 2001
From: Michal R <vad.sol@proton.me>
Date: Sun, 28 Sep 2025 19:30:26 +0200
Subject: [PATCH 2/2] ci: Build and test with all feature combinations

---
 .github/workflows/test.yml | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 .github/workflows/test.yml

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..b7bc5df
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,29 @@
+name: test
+
+on:
+  push:
+    branches:
+      - master
+
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: taiki-e/install-action@cargo-hack
+
+      - name: Check
+        run: cargo hack check --feature-powerset
+
+      - name: Build
+        run: cargo hack build --feature-powerset
+
+      - name: Test
+        env:
+          RUST_BACKTRACE: full
+        run: cargo hack test --feature-powerset