From: Florian Müllner <fmuellner@gnome.org>
Date: Tue, 15 Dec 2020 18:23:14 +0000 (+0100)
Subject: build: Pre-generate man pages at dist time
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~616^2^2~653
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=9ef9a5ff8a;p=gnome-shell.git

build: Pre-generate man pages at dist time

The man pages don't change very often, but draw in both docbook and
asciidoc. The latter is particularly problematic, as some distros
still ship only a python2 version of the tool.

Address this by generating the man pages at dist time, and including
the result in the tarball.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1553>
---

diff --git a/meson.build b/meson.build
index 71b3ca471..4c913ff86 100644
--- a/meson.build
+++ b/meson.build
@@ -37,6 +37,7 @@ gst_req = '>= 0.11.92'
 nm_req = '>= 1.10.4'
 secret_req = '>= 0.18'
 
+fs = import('fs')
 gnome = import('gnome')
 i18n  = import('i18n')
 
@@ -126,8 +127,12 @@ else
 endif
 
 if get_option('man')
-  a2x = find_program('a2x')
-  subdir('man')
+  if fs.exists('man/gnome-shell.1')
+    install_man('man/gnome-shell.1')
+  else
+    a2x = find_program('a2x')
+    subdir('man')
+  endif
 endif
 
 mutter_typelibdir = mutter_dep.get_pkgconfig_variable('typelibdir')
@@ -287,6 +292,7 @@ if get_option('gtk_doc')
 endif
 
 meson.add_install_script('meson/postinstall.py')
+meson.add_dist_script('meson/generate-manpages.py')
 
 summary_options = {
   'networkmanager': get_option('networkmanager'),
diff --git a/meson/generate-manpages.py b/meson/generate-manpages.py
new file mode 100644
index 000000000..ce2ca2828
--- /dev/null
+++ b/meson/generate-manpages.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import os
+from pathlib import PurePath
+from asciidocapi import AsciiDocAPI
+
+man_pages = [
+    'man/gnome-shell.1',
+    'subprojects/extensions-tool/man/gnome-extensions.1',
+]
+
+sourceroot = os.environ.get('MESON_SOURCE_ROOT')
+distroot = os.environ.get('MESON_DIST_ROOT')
+
+asciidoc = AsciiDocAPI()
+
+for man_page in man_pages:
+    page_path = PurePath(man_page)
+    src = PurePath(sourceroot, page_path.with_suffix('.txt'))
+    dst = PurePath(distroot, page_path)
+    stylesheet = src.with_name('stylesheet.xsl')
+
+    asciidoc.options('--xsl-file', os.fspath(stylesheet))
+    asciidoc.execute(os.fspath(src), outfile=os.fspath(dst))
diff --git a/subprojects/extensions-tool/meson.build b/subprojects/extensions-tool/meson.build
index 5460f626d..18a38a023 100644
--- a/subprojects/extensions-tool/meson.build
+++ b/subprojects/extensions-tool/meson.build
@@ -6,6 +6,7 @@ project('gnome-extensions-tool', 'c',
 
 gio_req = '>= 2.56.0'
 
+fs = import('fs')
 gnome = import('gnome')
 i18n  = import('i18n')
 
@@ -46,9 +47,12 @@ if bash_completion.found()
 endif
 
 if get_option('man')
-  a2x = find_program('a2x')
-
-  subdir('man')
+  if fs.exists('man/gnome-extensions.1')
+    install_man('man/gnome-extensions.1')
+  else
+    a2x = find_program('a2x')
+    subdir('man')
+  endif
 endif
 
 if not meson.is_subproject()