build-sys: use #if Y instead of #ifdef Y everywhere

[thirdparty/systemd.git] / man / meson.build

diff --git a/man/meson.build b/man/meson.build
index 79d7710d11b81251633c005694868313933d82d0..7d28e6ba1ad577adff4799a52a121f9f3a1dc2a9 100644 (file)
--- a/man/meson.build
+++ b/man/meson.build
@@ -1,9 +1,6 @@
 # This is lame, I know, but meson has no other include mechanism
 subdir('rules')
 
-# TODO: add regeneration rule:
-# python3 tools/make-man-rules.py --meson man/*xml > man/rules/meson.build
-
 want_man = get_option('man')
 want_html = get_option('html')
 xsltproc = find_program('xsltproc',
@@ -14,6 +11,7 @@ want_html = want_html != 'false' and xsltproc.found()
 xsltproc_flags = [
         '--nonet',
         '--xinclude',
+        '--maxdepth', '9000',
         '--stringparam', 'man.output.quietly', '1',
         '--stringparam', 'funcsynopsis.style', 'ansi',
         '--stringparam', 'man.authors.section.enabled', '0',
@@ -53,7 +51,7 @@ foreach tuple : manpages
 
         mandirn = join_paths(get_option('mandir'), 'man' + section)
 
-        if condition == '' or conf.get(condition, 0) == 1
+        if condition == '' or conf.get(condition) == 1
                 p1 = custom_target(
                         man,
                         input : xml,
@@ -64,15 +62,32 @@ foreach tuple : manpages
                         install_dir : mandirn)
                 man_pages += [p1]
 
-                p2 = custom_target(
+                p2 = []
+                foreach htmlalias : htmlaliases
+                        link = custom_target(
+                                htmlalias,
+                                input : p2,
+                                output : htmlalias,
+                                command : ['ln', '-fs', html, '@OUTPUT@'])
+                        if want_html
+                                dst = join_paths(docdir, 'html', htmlalias)
+                                cmd = 'ln -fs @0@ $DESTDIR@1@'.format(html, dst)
+                                meson.add_install_script('sh', '-c', cmd)
+                                p2 += [link]
+                        endif
+                        html_pages += [link]
+                endforeach
+
+                p3 = custom_target(
                         html,
                         input : xml,
-                        output : [html] + htmlaliases,
+                        output : html,
                         command : xslt_cmd + [custom_html_xsl, '@INPUT@'],
                         depend_files : custom_entities_ent,
+                        depends : p2,
                         install : want_html,
                         install_dir : join_paths(docdir, 'html'))
-                html_pages += [p2]
+                html_pages += [p3]
 
                 source_xml_files += files(tuple[0] + '.xml')
         else
@@ -120,25 +135,46 @@ foreach tuple : [['systemd.directives', '7', systemd_directives_xml],
                 install_dir : mandirn)
         man_pages += [p1]
 
-        p2 = custom_target(
+        p2 = []
+        if html == 'systemd.index.html'
+                htmlalias = 'index.html'
+                link = custom_target(
+                        htmlalias,
+                        input : p2,
+                        output : htmlalias,
+                        command : ['ln', '-fs', html, '@OUTPUT@'])
+                if want_html
+                        dst = join_paths(docdir, 'html', htmlalias)
+                        cmd = 'ln -fs @0@ $DESTDIR@1@'.format(html, dst)
+                        meson.add_install_script('sh', '-c', cmd)
+                        p2 += [link]
+                endif
+                html_pages += [link]
+        endif
+
+        p3 = custom_target(
                 html,
                 input : xml,
                 output : html,
                 command : xslt_cmd + [custom_html_xsl, '@INPUT@'],
+                depend_files : custom_entities_ent,
+                depends : p2,
                 install : want_html and have_lxml,
                 install_dir : join_paths(docdir, 'html'))
-        html_pages += [p2]
+        html_pages += [p3]
 endforeach
 
-man = run_target(
+# cannot use run_target until https://github.com/mesonbuild/meson/issues/1644 is resolved
+man = custom_target(
         'man',
+        output : 'man',
         depends : man_pages,
         command : ['echo'])
 
-html = run_target(
+html = custom_target(
         'html',
-        depends : html_pages,
         output : 'html',
+        depends : html_pages,
         command : ['echo'])
 
 run_target(
@@ -152,3 +188,19 @@ run_target(
                    '--omit-dir-times',
                    meson.current_build_dir(),
                    get_option('www-target')])
+
+############################################################
+
+if git.found()
+        custom_target(
+                'update-man-rules',
+                output : 'update-man-rules',
+                # slightly strange syntax because of
+                # https://github.com/mesonbuild/meson/issues/1643
+                # and https://github.com/mesonbuild/meson/issues/1512
+                command : ['sh', '-c',
+                           'cd @0@ && '.format(meson.build_root()) +
+                           'python3 @0@/tools/make-man-rules.py `git ls-files ":/man/*.xml"` >t && '.format(meson.source_root()) +
+                           'mv t @0@/rules/meson.build'.format(meson.current_source_dir())],
+                depend_files : custom_entities_ent)
+endif