From: Patrick Steinhardt <ps@pks.im>
Date: Thu, 11 Sep 2025 09:16:06 +0000 (+0200)
Subject: meson: introduce a "docs" alias to compile documentation only
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=197f0d0f390ef2f1e573a57c27ed7db8df7a46fd;p=thirdparty%2Fgit.git

meson: introduce a "docs" alias to compile documentation only

Meson does not currently provide a target to compile documentation,
only. Instead, users needs to compile the whole project, which may be
way more than they really intend to do.

Introduce a new "docs" alias to plug this gap. This alias can be invoked
e.g. with `meson compile docs`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/Documentation/howto/meson.build b/Documentation/howto/meson.build
index 81000028c0..ece20244af 100644
--- a/Documentation/howto/meson.build
+++ b/Documentation/howto/meson.build
@@ -29,7 +29,7 @@ howto_index = custom_target(
   output: 'howto-index.adoc',
 )
 
-custom_target(
+doc_targets += custom_target(
   command: asciidoc_html_options,
   input: howto_index,
   output: 'howto-index.html',
@@ -51,7 +51,7 @@ foreach howto : howto_sources
     capture: true,
   )
 
-  custom_target(
+  doc_targets += custom_target(
     command: asciidoc_html_options,
     input: howto_stripped,
     output: fs.stem(howto_stripped.full_path()) + '.html',
diff --git a/Documentation/meson.build b/Documentation/meson.build
index 4404c623f0..f0169fcf9c 100644
--- a/Documentation/meson.build
+++ b/Documentation/meson.build
@@ -375,7 +375,7 @@ foreach manpage, category : manpages
       output: fs.stem(manpage) + '.xml',
     )
 
-    custom_target(
+    doc_targets += custom_target(
       command: [
         xmlto,
         '-m', '@INPUT0@',
@@ -398,7 +398,7 @@ foreach manpage, category : manpages
   endif
 
   if get_option('docs').contains('html')
-    custom_target(
+    doc_targets += custom_target(
       command: asciidoc_common_options + [
         '--backend=' + asciidoc_html,
         '--doctype=manpage',
@@ -450,7 +450,7 @@ if get_option('docs').contains('html')
     depends: documentation_deps,
   )
 
-  custom_target(
+  doc_targets += custom_target(
     command: [
       xsltproc,
       '--xinclude',
@@ -479,7 +479,7 @@ if get_option('docs').contains('html')
   ]
 
   foreach article : articles
-    custom_target(
+    doc_targets += custom_target(
       command: asciidoc_common_options + [
         '--backend=' + asciidoc_html,
         '--out-file=@OUTPUT@',
diff --git a/Documentation/technical/meson.build b/Documentation/technical/meson.build
index a13aafcfbb..858af811a7 100644
--- a/Documentation/technical/meson.build
+++ b/Documentation/technical/meson.build
@@ -46,7 +46,7 @@ api_index = custom_target(
   output: 'api-index.adoc',
 )
 
-custom_target(
+doc_targets += custom_target(
   command: asciidoc_html_options,
   input: api_index,
   output: 'api-index.html',
@@ -56,7 +56,7 @@ custom_target(
 )
 
 foreach article : api_docs + articles
-  custom_target(
+  doc_targets += custom_target(
     command: asciidoc_html_options,
     input: article,
     output: fs.stem(article) + '.html',
diff --git a/contrib/contacts/meson.build b/contrib/contacts/meson.build
index 73d82dfe52..c8fdb35ed9 100644
--- a/contrib/contacts/meson.build
+++ b/contrib/contacts/meson.build
@@ -20,7 +20,7 @@ if get_option('docs').contains('man')
     output: 'git-contacts.xml',
   )
 
-  custom_target(
+  doc_targets += custom_target(
     command: [
       xmlto,
       '-m', '@INPUT@',
@@ -39,7 +39,7 @@ if get_option('docs').contains('man')
 endif
 
 if get_option('docs').contains('html')
-  custom_target(
+  doc_targets += custom_target(
     command: asciidoc_common_options + [
       '--backend=' + asciidoc_html,
       '--doctype=manpage',
diff --git a/contrib/subtree/meson.build b/contrib/subtree/meson.build
index 98dd8e0c8e..46cdbcc30c 100644
--- a/contrib/subtree/meson.build
+++ b/contrib/subtree/meson.build
@@ -38,7 +38,7 @@ if get_option('docs').contains('man')
     output: 'git-subtree.xml',
   )
 
-  custom_target(
+  doc_targets += custom_target(
     command: [
       xmlto,
       '-m', '@INPUT@',
@@ -57,7 +57,7 @@ if get_option('docs').contains('man')
 endif
 
 if get_option('docs').contains('html')
-  custom_target(
+  doc_targets += custom_target(
     command: asciidoc_common_options + [
       '--backend=' + asciidoc_html,
       '--doctype=manpage',
diff --git a/meson.build b/meson.build
index 5dd299b496..f7dd6ee30d 100644
--- a/meson.build
+++ b/meson.build
@@ -2099,11 +2099,18 @@ endif
 
 subdir('bin-wrappers')
 if get_option('docs') != []
+  doc_targets = []
   subdir('Documentation')
 endif
 
 subdir('contrib')
 
+# Note that the target is intentionally configured after including the
+# 'contrib' directory, as some tool there also have their own manpages.
+if get_option('docs') != []
+  alias_target('docs', doc_targets)
+endif
+
 exclude_from_check_headers = [
   'compat/',
   'unicode-width.h',