build-sys: Enable bootc-status-updated.path by default

Followup to #977

In chatting with John we had some agreement to statically
enable the `.path` unit by default upstream here since
it's a feature we want to be available by default
so that tooling can react dynamically to changes.

Signed-off-by: Colin Walters <[email protected]>

Author: cgwalters

Makefile

@@ -25,6 +25,8 @@ install:
 	  fi; \
 	  done
 	install -D -m 0644 -t $(DESTDIR)/$(prefix)/lib/systemd/system systemd/*.service systemd/*.timer systemd/*.path systemd/*.target
+	install -d -m 0755 $(DESTDIR)/$(prefix)/lib/systemd/system/multi-user.target.wants
+	ln -s ../bootc-status-updated.path $(DESTDIR)/$(prefix)/lib/systemd/system/multi-user.target.wants/bootc-status-updated.path
 	install -D -m 0644 -t $(DESTDIR)/$(prefix)/share/doc/bootc/baseimage/base/usr/lib/ostree/ baseimage/base/usr/lib/ostree/prepare-root.conf
 	install -d -m 755 $(DESTDIR)/$(prefix)/share/doc/bootc/baseimage/base/sysroot
 	cp -PfT baseimage/base/ostree $(DESTDIR)/$(prefix)/share/doc/bootc/baseimage/base/ostree 

tests/booted/readonly/012-unit-status.nu

@@ -0,0 +1,18 @@
+# Verify our systemd units are enabled
+use std assert
+use tap.nu
+
+tap begin "verify our systemd units"
+
+let units = [
+    ["unit", "status"]; 
+    # This one should be always enabled by our install logic
+    ["bootc-status-updated.path", "active"]
+]
+
+for elt in $units {
+    let found_status = systemctl show -P ActiveState $elt.unit | str trim
+    assert equal $elt.status $found_status
+}
+
+tap ok