From 41c799c8444f6c671c77c65c41b9684aad6afdeb Mon Sep 17 00:00:00 2001
From: Emil Velikov <emil.l.velikov@gmail.com>
Date: Wed, 4 Sep 2024 19:25:44 +0100
Subject: [PATCH] meson: add test for gtkdoc coverage

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://github.com/kmod-project/kmod/pull/94
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
---
 Makefile.am              |  1 +
 libkmod/docs/meson.build |  9 ++++++++-
 meson.build              |  1 +
 scripts/check-gtkdoc.sh  | 24 ++++++++++++++++++++++++
 4 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100755 scripts/check-gtkdoc.sh

diff --git a/Makefile.am b/Makefile.am
index 16c5ae60..6c4b00eb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -23,6 +23,7 @@ EXTRA_DIST += \
 	meson_options.txt \
 	testsuite/meson.build \
 	scripts/build-scdoc.sh \
+	scripts/check-gtkdoc.sh \
 	scripts/kmod-symlink.sh
 
 AM_CPPFLAGS = \
diff --git a/libkmod/docs/meson.build b/libkmod/docs/meson.build
index ff0132c6..a6d64ebf 100644
--- a/libkmod/docs/meson.build
+++ b/libkmod/docs/meson.build
@@ -6,7 +6,7 @@ version_file = configure_file(
   configuration: cdata,
 )
 
-gnome.gtkdoc(
+built_docs = gnome.gtkdoc(
   'libkmod',
   content_files : version_file,
   ignore_headers : [
@@ -20,3 +20,10 @@ gnome.gtkdoc(
   module_version : '3',
   main_xml : 'libkmod-docs.xml',
 )
+
+test(
+  'test-gtkdoc',
+  check_gtkdoc,
+  args : meson.current_build_dir(),
+  depends : built_docs,
+)
diff --git a/meson.build b/meson.build
index c41a2bbe..db07e9c5 100644
--- a/meson.build
+++ b/meson.build
@@ -423,6 +423,7 @@ if get_option('manpages')
 endif
 
 if get_option('docs')
+  check_gtkdoc = find_program('scripts/check-gtkdoc.sh')
   subdir('libkmod/docs')
 endif
 
diff --git a/scripts/check-gtkdoc.sh b/scripts/check-gtkdoc.sh
new file mode 100755
index 00000000..624837e1
--- /dev/null
+++ b/scripts/check-gtkdoc.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+set -euo pipefail
+
+err=0
+
+warn() {
+    (( ++err ))
+    echo
+    echo "WARNING: $1."
+    echo "See file below for more details."
+    echo
+    echo "$2:"
+    cat "$2"
+    echo
+}
+
+cd "$1"
+
+grep -q '100%' 'libkmod-undocumented.txt' || warn 'Some APIs are missing documentation' 'libkmod-undocumented.txt'
+
+(( $(wc -l < 'libkmod-unused.txt') == 0)) || warn 'APIs are missing from the libkmod-section.txt index' 'libkmod-unused.txt'
+
+exit "$err"
-- 
2.47.3