Ports: Add Lite-XL

Author: https://github.com/Jan200101
Commit: https://github.com/SerenityOS/serenity/commit/83b3403b52
Pull-request: https://github.com/SerenityOS/serenity/pull/15460
Reviewed-by: https://github.com/linusg ✅
Reviewed-by: https://github.com/timschumi ✅

Ports/AvailablePorts.md

@@ -143,6 +143,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`libyaml`](libyaml/)                               | libyaml                                                         | 0.2.5                    | https://pyyaml.org/wiki/LibYAML                                                |
 | [`libzip`](libzip/)                                 | libzip                                                          | 1.8.0                    | https://libzip.org/                                                            |
 | [`links`](links/)                                   | Links web browser                                               | 2.26                     | http://links.twibright.com/                                                    |
+| [`lite-xl`](lite-xl/)                               | Lite-XL                                                         | 2.1.0                    | https://lite-xl.com/                                                           |
 | [`llvm`](llvm/)                                     | LLVM                                                            | 15.0.3                   | https://llvm.org/                                                              |
 | [`lua`](lua/)                                       | Lua                                                             | 5.4.4                    | https://www.lua.org/                                                           |
 | [`luajit`](luajit/)                                 | LuaJIT                                                          | 2.1.0-beta3              | https://luajit.org/luajit.html                                                 |

Ports/lite-xl/package.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port='lite-xl'
+version='2.1.0'
+commit_hash='97ba91af8b855a10a14bdc5cad774c877156f4a9'
+useconfigure='true'
+configopts=(
+    "--buildtype=release"
+    "--cross-file=${SERENITY_BUILD_DIR}/meson-cross-file.txt"
+)
+depends=(
+    'freetype'
+    'lua'
+    'pcre2'
+    'SDL2'
+)
+files="https://github.com/lite-xl/lite-xl/archive/${commit_hash}.tar.gz lite-xl-97ba91af8.tar.gz 25a0dd0a6ef856fd312eecd54983d401224eb8d7a5d5aa4a37c9131ac77bd9ca"
+workdir="lite-xl-${commit_hash}"
+auth_type='sha256'
+launcher_name='Lite-XL'
+icon_file='resources/icons/icon.ico'
+launcher_category='Development'
+launcher_command='/usr/local/bin/lite-xl'
+launcher_run_in_terminal='false'
+
+configure() {
+    # TODO: Figure out why GCC doesn't autodetect that libgcc_s is needed.
+    if [ "${SERENITY_TOOLCHAIN}" = "GNU" ]; then
+        export LDFLAGS="-lgcc_s"
+    fi
+
+    run meson build "${configopts[@]}"
+}
+
+build() {
+    run ninja -C build
+}
+
+install() {
+    export DESTDIR="${SERENITY_INSTALL_ROOT}"
+    run meson install -C build
+}

Ports/lite-xl/patches/0001-Add-SerenityOS-platform-support.patch

@@ -0,0 +1,192 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jan200101 <sentrycraft123@gmail.com>
+Date: Mon, 24 Oct 2022 19:23:31 +0200
+Subject: [PATCH] Add SerenityOS platform support
+
+Signed-off-by: Jan200101 <sentrycraft123@gmail.com>
+---
+ meson.build                         |  3 +-
+ src/api/dirmonitor/inodewatcher.cpp | 75 +++++++++++++++++++++++++++++
+ src/main.c                          |  7 ++-
+ src/meson.build                     | 16 +++---
+ 4 files changed, 92 insertions(+), 9 deletions(-)
+ create mode 100644 src/api/dirmonitor/inodewatcher.cpp
+
+diff --git a/meson.build b/meson.build
+index adb7ceb..963bd17 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1,10 +1,11 @@
+ project('lite-xl',
+-    ['c'],
++    ['c', 'cpp'],
+     version : '2.1.0',
+     license : 'MIT',
+     meson_version : '>= 0.47',
+     default_options : [
+         'c_std=gnu11',
++        'cpp_std=c++20',
+         'wrap_mode=nofallback'
+     ]
+ )
+diff --git a/src/api/dirmonitor/inodewatcher.cpp b/src/api/dirmonitor/inodewatcher.cpp
+new file mode 100644
+index 0000000..e749f5b
+--- /dev/null
++++ b/src/api/dirmonitor/inodewatcher.cpp
+@@ -0,0 +1,75 @@
++#include <AK/NumericLimits.h>
++#include <Kernel/API/InodeWatcherEvent.h>
++#include <Kernel/API/InodeWatcherFlags.h>
++#include <cstring>
++#include <stdlib.h>
++#include <unistd.h>
++#include <fcntl.h>
++#include <poll.h>
++
++extern "C" {
++struct dirmonitor_internal* init_dirmonitor();
++void deinit_dirmonitor(struct dirmonitor_internal*);
++int get_changes_dirmonitor(struct dirmonitor_internal*, char*, int);
++int translate_changes_dirmonitor(struct dirmonitor_internal*, char*, int, int (*)(int, const char*, void*), void*);
++int add_dirmonitor(struct dirmonitor_internal*, const char*);
++void remove_dirmonitor(struct dirmonitor_internal*, int);
++int get_mode_dirmonitor();
++}
++
++struct dirmonitor_internal {
++  int fd;
++  // a pipe is used to wake the thread in case of exit
++  int sig[2];
++};
++
++
++struct dirmonitor_internal* init_dirmonitor() {
++  struct dirmonitor_internal* monitor = (struct dirmonitor_internal*)calloc(sizeof(struct dirmonitor_internal), 1);
++  monitor->fd = create_inode_watcher(0);
++  pipe(monitor->sig);
++  fcntl(monitor->sig[0], F_SETFD, FD_CLOEXEC);
++  fcntl(monitor->sig[1], F_SETFD, FD_CLOEXEC);
++  return monitor;
++}
++
++
++void deinit_dirmonitor(struct dirmonitor_internal* monitor) {
++  close(monitor->fd);
++  close(monitor->sig[0]);
++  close(monitor->sig[1]);
++}
++
++
++
++int get_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int length) {
++  struct pollfd fds[2] = { { .fd = monitor->fd, .events = POLLIN | POLLERR, .revents = 0 }, { .fd = monitor->sig[0], .events = POLLIN | POLLERR, .revents = 0 } };
++  poll(fds, 2, -1);
++  return read(monitor->fd, buffer, length);
++}
++
++
++int translate_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int length, int (*change_callback)(int, const char*, void*), void* data) {
++  InodeWatcherEvent* event = (InodeWatcherEvent*)buffer;
++  change_callback(event->watch_descriptor, NULL, data);
++  return 0;
++}
++
++
++int add_dirmonitor(struct dirmonitor_internal* monitor, const char* path) {
++  return inode_watcher_add_watch(monitor->fd, path, strlen(path),
++      static_cast<unsigned>(
++        InodeWatcherEvent::Type::MetadataModified |
++        InodeWatcherEvent::Type::ContentModified |
++        InodeWatcherEvent::Type::Deleted |
++        InodeWatcherEvent::Type::ChildCreated |
++        InodeWatcherEvent::Type::ChildDeleted
++      ));
++}
++
++
++void remove_dirmonitor(struct dirmonitor_internal* monitor, int fd) {
++  inode_watcher_remove_watch(monitor->fd, fd);
++}
++
++int get_mode_dirmonitor() { return 2; }
+diff --git a/src/main.c b/src/main.c
+index 9784c0a..232b9a9 100644
+--- a/src/main.c
++++ b/src/main.c
+@@ -7,7 +7,7 @@
+ 
+ #ifdef _WIN32
+   #include <windows.h>
+-#elif __linux__ || __FreeBSD__
++#elif __linux__ || __FreeBSD__ || __serenity__
+   #include <unistd.h>
+   #include <signal.h>
+ #elif __APPLE__
+@@ -31,7 +31,7 @@ static void get_exe_filename(char *buf, int sz) {
+ #if _WIN32
+   int len = GetModuleFileName(NULL, buf, sz - 1);
+   buf[len] = '\0';
+-#elif __linux__
++#elif __linux__ || __serenity__
+   char path[] = "/proc/self/exe";
+   int len = readlink(path, buf, sz - 1);
+   buf[len] = '\0';
+@@ -101,6 +101,9 @@ void set_macos_bundle_resources(lua_State *L);
+     #define ARCH_PLATFORM "freebsd"
+   #elif __APPLE__
+     #define ARCH_PLATFORM "darwin"
++  #elif __serenity__
++    #define ARCH_PLATFORM "serenity"
++  #else
+   #endif
+ 
+   #if !defined(ARCH_PROCESSOR) || !defined(ARCH_PLATFORM)
+diff --git a/src/meson.build b/src/meson.build
+index 06bb397..8dd25c4 100644
+--- a/src/meson.build
++++ b/src/meson.build
+@@ -11,20 +11,30 @@ lite_sources = [
+     'main.c',
+ ]
+ 
++lite_sources += 'api/dirmonitor.c'
+ # dirmonitor backend
+ if get_option('dirmonitor_backend') == ''
+     if cc.has_function('inotify_init', prefix : '#include<sys/inotify.h>')
+         dirmonitor_backend = 'inotify'
++        lite_sources += 'api/dirmonitor/inotify.c'
+     elif host_machine.system() == 'darwin' and cc.check_header('CoreServices/CoreServices.h')
+         dirmonitor_backend = 'fsevents'
++        lite_sources += 'api/dirmonitor/fsevents.c'
+     elif cc.has_function('kqueue', prefix : '#include<sys/event.h>')
+         dirmonitor_backend = 'kqueue'
++        lite_sources += 'api/dirmonitor/kqueue.c'
++    elif cc.has_function('create_inode_watcher', prefix : '#include<fcntl.h>')
++        dirmonitor_backend = 'inodewatcher'
++        lite_sources += 'api/dirmonitor/inodewatcher.cpp'
+     elif dependency('libkqueue', required : false).found()
+         dirmonitor_backend = 'kqueue'
++        lite_sources += 'api/dirmonitor/kqueue.c'
+     elif host_machine.system() == 'windows'
+         dirmonitor_backend = 'win32'
++        lite_sources += 'api/dirmonitor/win32.c'
+     else
+         dirmonitor_backend = 'dummy'
++        lite_sources += 'api/dirmonitor/dummy.c'
+         warning('no suitable backend found, defaulting to dummy backend')
+     endif
+ else
+@@ -40,12 +50,6 @@ if dirmonitor_backend == 'kqueue'
+     endif
+ endif
+ 
+-lite_sources += [
+-    'api/dirmonitor.c',
+-    'api/dirmonitor/' + dirmonitor_backend + '.c',
+-]
+-
+-
+ lite_rc = []
+ if host_machine.system() == 'windows'
+     windows = import('windows')

Ports/lite-xl/patches/ReadMe.md

@@ -0,0 +1,7 @@
+# Patches for Lite-XL on SerenityOS
+
+## `0001-Add-SerenityOS-platform-support.patch`
+
+Add SerenityOS platform support
+
+