[pango/ebassi/dist-docs] build: Add documentation to the release tarball

[Emmanuele Bassi <ebassi src gnome org>]

commit 45f7092424dd3a867cb95040019d912ef0854895
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Mar 12 14:11:37 2021 +0000

    build: Add documentation to the release tarball
    
    Rebuilding the project with documentation enabled will also rebuild the
    documentation.

 build-aux/meson/dist-docs.py | 23 +++++++++++++++++++++++
 meson.build                  |  4 ++++
 2 files changed, 27 insertions(+)
---
diff --git a/build-aux/meson/dist-docs.py b/build-aux/meson/dist-docs.py
new file mode 100755
index 00000000..95887412
--- /dev/null
+++ b/build-aux/meson/dist-docs.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+import os
+import shutil
+
+references = [
+    'docs/Pango',
+    'docs/PangoCairo',
+    'docs/PangoFc',
+    'docs/PangoFT2',
+    'docs/PangoOT',
+    'docs/PangoXft',
+]
+
+sourceroot = os.environ.get('MESON_SOURCE_ROOT')
+buildroot = os.environ.get('MESON_BUILD_ROOT')
+distroot = os.environ.get('MESON_DIST_ROOT')
+
+for reference in references:
+    src_path = os.path.join(buildroot, reference)
+    if os.path.isdir(src_path):
+        dst_path = os.path.join(distroot, reference)
+        shutil.copytree(src_path, dst_path)
diff --git a/meson.build b/meson.build
index 5f9967c7..894c6071 100644
--- a/meson.build
+++ b/meson.build
@@ -606,3 +606,7 @@ subdir('tools')
 if get_option('gtk_doc')
   subdir('docs')
 endif
+
+if not meson.is_subproject()
+  meson.add_dist_script('build-aux/meson/dist-docs.py')
+endif