Meson misc things

Meson-ify a few things, scripts, completions, etc. Should make our Meson
build complete except for docs.

Co-Authored-By: Qyriad <qyriad@qyriad.me>
Co-Authored-By: eldritch horrors <pennae@lix.systems>

misc/bash/meson.build

@@ -0,0 +1,8 @@
+configure_file(
+  input : 'completion.sh',
+  output : 'nix',
+  install : true,
+  install_dir : get_option('datadir') / 'bash-completion' / 'completions',
+  install_mode : 'rw-r--r--',
+  copy : true,
+)

misc/fish/meson.build

@@ -0,0 +1,8 @@
+configure_file(
+  input : 'completion.fish',
+  output : 'nix.fish',
+  install : true,
+  install_dir : get_option('datadir') / 'fish' / 'vendor_completions.d',
+  install_mode : 'rw-r--r--',
+  copy : true,
+)

misc/meson.build

@@ -0,0 +1,5 @@
+subdir('bash')
+subdir('fish')
+subdir('zsh')
+
+subdir('systemd')

misc/systemd/meson.build

@@ -0,0 +1,25 @@
+foreach config : [ 'nix-daemon.socket', 'nix-daemon.service' ]
+  configure_file(
+    input : config + '.in',
+    output : config,
+    install : true,
+    install_dir : get_option('prefix') / 'lib/systemd/system',
+    install_mode : 'rw-r--r--',
+    configuration : {
+      'storedir' : store_dir,
+      'localstatedir' : localstatedir,
+      'bindir' : get_option('datadir'),
+    },
+  )
+endforeach
+
+configure_file(
+  input : 'nix-daemon.conf.in',
+  output : 'nix-daemon.conf',
+  install : true,
+  install_dir : get_option('prefix') / 'lib/tmpfiles.d',
+  install_mode : 'rw-r--r--',
+  configuration : {
+    'localstatedir' : localstatedir,
+  },
+)

misc/zsh/meson.build

@@ -0,0 +1,10 @@
+foreach script : [ [ 'completion.zsh', '_nix' ], [ 'run-help-nix' ] ]
+  configure_file(
+    input : script[0],
+    output : script.get(1, script[0]),
+    install : true,
+    install_dir : get_option('datadir') / 'zsh/site-functions',
+    install_mode : 'rw-r--r--',
+    copy : true,
+  )
+endforeach