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|
{ stdenv, lib, buildGame, fetchHumbleBundle, unzip, makeWrapper, mono
, SDL2, SDL2_image, openal, libvorbis
, writeText
}:
buildGame rec {
name = "owlboy-${version}";
version = "20171229";
src = fetchHumbleBundle {
suffix = "bin";
machineName = "owlboy_linux";
md5 = "c2e99502013c7d2529bc2aefb6416dcf";
};
unpackCmd = "${unzip}/bin/unzip -qq \"$curSrc\" 'data/*' || :";
nativeBuildInputs = [ makeWrapper ];
libdir = if stdenv.system == "x86_64-linux" then "lib64" else "lib";
prePatch = ''
find -type f -name '*.ini' -exec sed -i -e 's/${"\r"}$//' {} +
'';
buildPhase = let
dllmap = {
SDL2 = "${SDL2}/lib/libSDL2.so";
SDL2_image = "${SDL2_image}/lib/libSDL2_image.so";
soft_oal = "${openal}/lib/libopenal.so";
libvorbisfile-3 = "${libvorbis}/lib/libvorbisfile.so";
MojoShader = "$out/lib/owlboy/libmojoshader.so";
};
in ''
cc -Werror -shared "$preloader" -o preloader.so -ldl -fPIC \
-DSTOREPATH=\"$out\"
'' + lib.concatStrings (lib.mapAttrsToList (dll: target: ''
sed -i -e '/<dllmap.*dll="${dll}\.dll".*os="linux"/ {
s!target="[^"]*"!target="'"${target}"'"!
}' FNA.dll.config
'') dllmap);
# The game tries to open data files in read-write mode, so use LD_PRELOAD to
# avoid this whenever a store path is involved.
preloader = writeText "owlboy-preloader.c" ''
#define _GNU_SOURCE
#include <dlfcn.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <sys/stat.h>
static bool isDataPath(const char *path) {
return strncmp(path, "content/", 8) == 0
|| strncmp(path, STOREPATH, sizeof(STOREPATH) - 1) == 0;
}
int access(const char *path, int mode) {
static int (*_access) (const char *, int) = NULL;
if (_access == NULL) _access = dlsym(RTLD_NEXT, "access");
if (isDataPath(path) && mode & W_OK)
mode = mode & ~W_OK | R_OK;
return _access(path, mode);
}
int open(const char *path, int flags, ...) {
va_list ap;
mode_t mode;
static int (*_open) (const char *, int, mode_t) = NULL;
if (_open == NULL) _open = dlsym(RTLD_NEXT, "open");
va_start(ap, flags);
mode = va_arg(ap, mode_t);
va_end(ap);
if (isDataPath(path) && flags & O_RDWR)
flags = flags & ~O_RDWR | O_RDONLY;
return _open(path, flags, mode);
}
'';
installPhase = ''
mkdir -p "$out/bin" "$out/share" "$out/libexec/owlboy"
install -vD preloader.so "$out/lib/owlboy/preloader.so"
cp -rv content "$out/share/owlboy"
cp -rv monoconfig "$out/libexec/owlboy/Owlboy.exe.config"
cp -rvt "$out/libexec/owlboy" Owlboy.exe \
FNA.dll* GamedevUtility.dll MoonSharp.Interpreter.dll TimSort.dll
cp -rvt "$out/lib/owlboy" "$libdir/libmojoshader.so"
ln -vs "$out/share/owlboy" "$out/libexec/owlboy/content"
makeWrapper ${lib.escapeShellArg mono}/bin/mono \
"$out/bin/owlboy" \
--set LD_PRELOAD "$out/lib/owlboy/preloader.so" \
--add-flags "$out/libexec/owlboy/Owlboy.exe" \
--run "cd '$out/libexec/owlboy'"
'';
sandbox.paths.required = [
"$XDG_DATA_HOME/Owlboy" "$XDG_CONFIG_HOME/Owlboy"
];
}
|
