helpers: move helper programs to the same directory

Create a new 'nm-helpers' directory for all the helper programs, to
avoid having too many subdirs in the src directory.

src/meson.build

@@ -103,8 +103,7 @@ if enable_nmtui
 endif
 subdir('nmcli')
 subdir('nm-dispatcher')
-subdir('nm-priv-helper')
+subdir('nm-helpers')
-subdir('nm-daemon-helper')
 subdir('nm-online')
 if enable_nmtui
   subdir('nmtui')

src/nm-daemon-helper/README.md

@@ -1,11 +0,0 @@
-nm-daemon-helper
-================
-
-A internal helper application that is spawned by NetworkManager
-to perform certain actions.
-
-Currently all it does is doing a reverse DNS lookup, which
-cannot be done by NetworkManager because the operation requires
-to reconfigure the libc resolver (which is a process-wide operation).
-
-This is not directly useful to the user.

src/nm-daemon-helper/meson.build

@@ -1,15 +0,0 @@
-executable(
-  'nm-daemon-helper',
-  'nm-daemon-helper.c',
-  include_directories : [
-    src_inc,
-    top_inc,
-  ],
-  link_with: [
-    libnm_std_aux,
-  ],
-  link_args: ldflags_linker_script_binary,
-  link_depends: linker_script_binary,
-  install: true,
-  install_dir: nm_libexecdir,
-)

src/nm-helpers/README.md

@@ -1,5 +1,23 @@
+nm-helpers
+==========
+
+This directory contains stand-alone helper programs used by various
+components.
+
+nm-daemon-helper
+----------------
+
+A internal helper application that is spawned by NetworkManager
+to perform certain actions.
+
+Currently all it does is doing a reverse DNS lookup, which
+cannot be done by NetworkManager because the operation requires
+to reconfigure the libc resolver (which is a process-wide operation).
+
+This is not directly useful to the user.
+
 nm-priv-helper
-==============
+--------------
 
 This is a D-Bus activatable, exit-on-idle service, which
 provides an internal API to NetworkManager daemon.

src/nm-helpers/meson.build

@@ -1,5 +1,25 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
+# nm-daemon-helper
+
+executable(
+  'nm-daemon-helper',
+  'nm-daemon-helper.c',
+  include_directories : [
+    src_inc,
+    top_inc,
+  ],
+  link_with: [
+    libnm_std_aux,
+  ],
+  link_args: ldflags_linker_script_binary,
+  link_depends: linker_script_binary,
+  install: true,
+  install_dir: nm_libexecdir,
+)
+
+# nm-priv-helper
+
 configure_file(
   input: 'org.freedesktop.nm_priv_helper.service.in',
   output: '@BASENAME@',