feat(3p/nix): added meson support

(cherry picked from commit 086a81b7a5bbe1fc022efb5935ff68f6ad71ddaf)

third_party/nix/misc/launchd/meson.build

@@ -0,0 +1,19 @@
+# nix launchd build file
+#============================================================================
+
+if (sys_name.contains('darwin'))
+
+    launchd_data = []
+
+    org_nixos_nix_dameon_plist = configuration_data()
+    org_nixos_nix_dameon_plist.set('bindir', bindir)
+
+    launchd_data += configure_file(
+        input : 'org.nixos.nix-daemon.plist.in',
+        output : 'org.nixos.nix-daemon.plist',
+        configuration : org_nixos_nix_dameon_plist)
+
+    install_data(
+        corepkgs_data,
+        install_dir : join_paths(prefix, 'Library/LaunchDaemons'))
+endif

third_party/nix/misc/meson.build

@@ -0,0 +1,13 @@
+# nix src build file
+#============================================================================
+
+misc_dirs = [
+  'launchd',
+  'systemd',
+  'systemv',
+  'upstart'
+]
+
+foreach dir : misc_dirs
+    subdir(dir)
+endforeach

third_party/nix/misc/systemd/meson.build

@@ -0,0 +1,26 @@
+# nix systemd build file
+#============================================================================
+
+if (sys_name.contains('linux'))
+
+    systemd_data = []
+
+    systemd_nix_daemon = configuration_data()
+    systemd_nix_daemon.set('bindir', bindir)
+    systemd_nix_daemon.set('storedir', nixstoredir)
+    systemd_nix_daemon.set('localstatedir', localstatedir)
+
+    systemd_data += configure_file(
+        input : 'nix-daemon.socket.in',
+        output : 'nix-daemon.socket',
+        configuration : systemd_nix_daemon)
+
+    systemd_data += configure_file(
+        input : 'nix-daemon.service.in',
+        output : 'nix-daemon.service',
+        configuration : systemd_nix_daemon)
+
+    install_data(
+        systemd_data,
+        install_dir : join_paths(prefix, 'lib/systemd/system'))
+endif

third_party/nix/misc/systemv/meson.build

@@ -0,0 +1,8 @@
+# nix systemd build file
+#============================================================================
+
+systemv_data = []
+
+# install_data(
+#     systemv_data,
+#     install_dir : join_paths(prefix, 'lib/systemd/system'))

third_party/nix/misc/upstart/meson.build

@@ -0,0 +1,26 @@
+# ifeq ($(OS), Linux)
+
+#   $(foreach n, nix-daemon.conf, $(eval $(call install-file-in, $(d)/$(n), $(sysconfdir)/init, 0644)))
+
+# endif
+
+
+# nix systemd build file
+#============================================================================
+
+if (sys_name.contains('linux'))
+
+    upstart_data = []
+
+    upstart_nix_daemon = configuration_data()
+    upstart_nix_daemon.set('bindir', bindir)
+
+    upstart_data += configure_file(
+        input : 'nix-daemon.conf.in',
+        output : 'nix-daemon.conf',
+        configuration : upstart_nix_daemon)
+
+    install_data(
+        upstart_data,
+        install_dir : join_paths(sysconfdir, 'init'))
+endif