From 2e99de80472b80f36303ff85c8ed5d54dfe73ef4 Mon Sep 17 00:00:00 2001
From: Jordan Yates <jordan@embeint.com>
Date: Thu, 30 May 2024 11:58:36 +1000
Subject: [PATCH] doc: conf.py: build directory from environment

Get the output directory from environment variables instead of
attempting to reparse the CLI arguments, as these can actually refer
to a program other than `sphinx-build` (for example `sphinx-autobuild`).

Signed-off-by: Jordan Yates <jordan@embeint.com>
---
 doc/CMakeLists.txt | 1 +
 doc/conf.py        | 5 +----
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 4a9861f7a1d..826376cc3aa 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -45,6 +45,7 @@ endif()
 set(SPHINX_ENV
   DOXYGEN_EXECUTABLE=${DOXYGEN_EXECUTABLE}
   DOT_EXECUTABLE=${DOXYGEN_DOT_EXECUTABLE}
+  DOCS_HTML_DIR=${CMAKE_CURRENT_BINARY_DIR}/html
 )
 
 if(DEFINED ENV{ZEPHYR_DOXYGEN_OVERLAY})
diff --git a/doc/conf.py b/doc/conf.py
index fdfdc2c71fe..5b0f2959261 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -7,11 +7,8 @@ from pathlib import Path
 import re
 import textwrap
 
-from sphinx.cmd.build import get_parser
-
-args = get_parser().parse_args()
 ZEPHYR_BASE = Path(__file__).resolve().parents[1]
-ZEPHYR_BUILD = Path(args.outputdir).resolve()
+ZEPHYR_BUILD = Path(os.environ.get("DOCS_HTML_DIR")).resolve()
 
 # Add the '_extensions' directory to sys.path, to enable finding Sphinx
 # extensions within.