docs: Fix up doxyfile.

No longer using :sources, since that fails on render.com.

docs/Doxyfile

@@ -1295,15 +1295,6 @@ HTML_COLORSTYLE_SAT    = 100
 
 HTML_COLORSTYLE_GAMMA  = 80
 
-# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
-# page will contain the date and time when the page was generated. Setting this
-# to YES can help to show when doxygen was last run and thus if the
-# documentation is up to date.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_TIMESTAMP         = NO
-
 # If the HTML_DYNAMIC_MENUS tag is set to YES then the generated HTML
 # documentation will contain a main index with vertical navigation menus that
 # are dynamically created via JavaScript. If disabled, the navigation index will
@@ -1950,14 +1941,6 @@ LATEX_HIDE_INDICES     = NO
 
 LATEX_BIB_STYLE        = plain
 
-# If the LATEX_TIMESTAMP tag is set to YES then the footer of each generated
-# page will contain the date and time when the page was generated. Setting this
-# to NO can help when comparing the output of multiple runs.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_TIMESTAMP        = NO
-
 # The LATEX_EMOJI_DIRECTORY tag is used to specify the (relative or absolute)
 # path from which the emoji images will be read. If a relative path is entered,
 # it will be relative to the LATEX_OUTPUT directory. If left blank the
@@ -2587,3 +2570,19 @@ GENERATE_LEGEND        = YES
 # The default value is: YES.
 
 DOT_CLEANUP            = YES
+
+# If the CLANG_ASSISTED_PARSING tag is set to YES then doxygen will use the
+# clang parser for more accurate parsing at the cost of reduced performance.
+# This can be particularly helpful with template rich C++ code for which
+# doxygen's built-in parser lacks the necessary type information.
+
+CLANG_ASSISTED_PARSING = NO
+
+# If clang assisted parsing is enabled you can provide the clang parser with
+# the path to the directory containing a file called compile_commands.json.
+# This file is the compilation database containing the options used when the
+# source files were built. This is equivalent to specifying the -p option to a
+# clang tool, such as clang-check. These options will then be passed to the
+# parser. Any options specified with CLANG_OPTIONS will be added as well.
+
+CLANG_DATABASE_PATH    = _build

other/docker/doxygen/dockerignore

@@ -0,0 +1,2 @@
+# ===== custom =====
+!docs/Doxyfile

other/docker/doxygen/doxygen.Dockerfile

@@ -1,19 +1,20 @@
-FROM toxchat/c-toxcore:sources AS sources
-FROM alpine:3.19.0 AS build
+FROM toxchat/doxygen:latest AS build
 
-ENV LANG=en_US.UTF-8 \
-    LANGUAGE=en_US.UTF-8 \
-    LC_CTYPE=en_US.UTF-8 \
-    LC_ALL=en_US.UTF-8
+RUN ["apk", "add", "--no-cache", \
+ "gtest-dev", \
+ "libconfig-dev", \
+ "libsodium-dev", \
+ "libvpx-dev", \
+ "opus-dev"]
 
-RUN apk add --no-cache doxygen git graphviz texlive \
- && git clone --depth=1 https://github.com/jothepro/doxygen-awesome-css.git /work/doxygen-awesome-css
-WORKDIR /work
-COPY --from=sources /src/ /work/
-COPY docs/Doxyfile /work/Doxyfile
-RUN echo "WARN_AS_ERROR = YES" >> Doxyfile \
+RUN git clone --depth=1 https://github.com/jothepro/doxygen-awesome-css.git /work/c-toxcore/doxygen-awesome-css
+
+WORKDIR /work/c-toxcore
+COPY . /work/c-toxcore/
+RUN cmake . -B_build -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+ && echo "WARN_AS_ERROR = YES" >> Doxyfile \
  && sed -i -e 's/^non_null([^)]*) *//;s/^nullable([^)]*) *//' $(find . -name "*.[ch]") \
- && doxygen Doxyfile
+ && doxygen docs/Doxyfile
 
 FROM nginx:alpine
-COPY --from=build /work/_docs/html/ /usr/share/nginx/html/
+COPY --from=build /work/c-toxcore/_docs/html/ /usr/share/nginx/html/

other/docker/doxygen/doxygen.Dockerfile.dockerignore

@@ -0,0 +1,25 @@
+# ===== common =====
+# Ignore everything ...
+**/*
+# ... except sources
+!**/*.[ch]
+!**/*.cc
+!**/*.hh
+!CHANGELOG.md
+!LICENSE
+!README.md
+!auto_tests/data/*
+!other/bootstrap_daemon/bash-completion/**
+!other/bootstrap_daemon/tox-bootstrapd.*
+!other/proxy/*.mod
+!other/proxy/*.sum
+!other/proxy/*.go
+# ... and CMake build files (used by most builds).
+!**/CMakeLists.txt
+!.github/scripts/flags*.sh
+!cmake/*.cmake
+!other/pkgconfig/*
+!other/rpm/*
+!so.version
+# ===== custom =====
+!docs/Doxyfile

other/docker/doxygen/run

@@ -1,8 +1,4 @@
-#!/bin/sh
-
-set -eux
-BUILD=doxygen
-other/docker/sources/build
-docker build -t "toxchat/c-toxcore:$BUILD" -f "other/docker/$BUILD/$BUILD.Dockerfile" .
+#!/usr/bin/env bash
 
+. "$(cd "$(dirname "${BASH_SOURCE[0]}")/../sources" && pwd)/run.sh"
 docker run --name toxcore-doxygen --rm -it -p "28192:80" "toxchat/c-toxcore:$BUILD"

other/docker/sources/run.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# Common docker build script usable by many builds in the other/docker
+# directory. We're using a common dockerignore that ignores everything except
+# sources and CMake scripts. Subdirectories can contain a "dockerignore" file
+# (note the missing "." at the start) that will be pasted to the end of the
+# common dockerignore file. This way, we can use "COPY ." and get all the
+# files we need at once, which is much faster, more flexible, and less
+# error-prone than manually writing lots of COPY directives.
+
+SOURCESDIR="$(dirname "${BASH_SOURCE[0]}")"
+DOCKERDIR="$(dirname "${BASH_SOURCE[1]}")"
+BUILD="$(basename "$DOCKERDIR")"
+
+set -eux
+cat "$SOURCESDIR/sources.Dockerfile.dockerignore" >"$DOCKERDIR/$BUILD.Dockerfile.dockerignore"
+if [ -f "$DOCKERDIR/dockerignore" ]; then
+  cat "$DOCKERDIR/dockerignore" >>"$DOCKERDIR/$BUILD.Dockerfile.dockerignore"
+fi
+
+docker build -t "toxchat/c-toxcore:$BUILD" -f "other/docker/$BUILD/$BUILD.Dockerfile" .

other/docker/sources/sources.Dockerfile.dockerignore

@@ -1,3 +1,4 @@
+# ===== common =====
 # Ignore everything ...
 **/*
 # ... except sources