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Axe save file migration

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The chances of someone using 2.0, then directly jumping to 2.4, are
pretty low - 2.0 is almost a decade old at this point.
This commit is contained in:
Misa 2021-03-24 14:29:04 -07:00 committed by Misa Elizabeth Kai
parent 85dc6db85b
commit bca8d39bd7
1 changed files with 1 additions and 181 deletions
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182
desktop_version/src/FileSystemUtils.cpp
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@ -25,13 +25,9 @@ int mkdir(char* path, int mode)
MultiByteToWideChar(CP_UTF8, 0, path, -1, utf16_path, MAX_PATH);
return CreateDirectoryW(utf16_path, NULL);
}
#define VNEEDS_MIGRATION (mkdirResult != 0)
#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
#include <unistd.h>
#include <dirent.h>
#include <limits.h>
#include <sys/stat.h>
#define VNEEDS_MIGRATION (mkdirResult == 0)
#define MAX_PATH PATH_MAX
#endif
@ -42,8 +38,6 @@ static char assetDir[MAX_PATH] = {'\0'};
static char virtualMountPath[MAX_PATH] = {'\0'};
static int PLATFORM_getOSDirectory(char* output, const size_t output_size);
static void PLATFORM_migrateSaveData(char* output);
static void PLATFORM_copyFile(const char *oldLocation, const char *newLocation);
static void* bridged_malloc(PHYSFS_uint64 size)
{
@ -66,7 +60,6 @@ static const PHYSFS_Allocator allocator = {
int FILESYSTEM_init(char *argvZero, char* baseDir, char *assetsPath)
{
char output[MAX_PATH];
int mkdirResult;
int retval;
const char* pathSep = PHYSFS_getDirSeparator();
char* basePath;
@ -136,15 +129,9 @@ int FILESYSTEM_init(char *argvZero, char* baseDir, char *assetsPath)
"levels",
pathSep
);
mkdirResult = mkdir(levelDir, 0777);
mkdir(levelDir, 0777);
printf("Level directory: %s\n", levelDir);
/* We didn't exist until now, migrate files! */
if (VNEEDS_MIGRATION)
{
PLATFORM_migrateSaveData(output);
}
basePath = SDL_GetBasePath();
if (basePath == NULL)
@ -1000,173 +987,6 @@ static int PLATFORM_getOSDirectory(char* output, const size_t output_size)
#endif
}
static void PLATFORM_migrateSaveData(char* output)
{
char oldLocation[MAX_PATH];
char newLocation[MAX_PATH];
char oldDirectory[MAX_PATH];
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
DIR *dir = NULL;
struct dirent *de = NULL;
DIR *subDir = NULL;
struct dirent *subDe = NULL;
char subDirLocation[MAX_PATH];
const char *homeDir = SDL_getenv("HOME");
if (homeDir == NULL)
{
/* Uhh, I don't want to get near this. -flibit */
return;
}
const char oldPath[] =
#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__)
"/.vvvvvv/";
#elif defined(__APPLE__)
"/Documents/VVVVVV/";
#endif
SDL_snprintf(oldDirectory, sizeof(oldDirectory), "%s%s", homeDir, oldPath);
dir = opendir(oldDirectory);
if (!dir)
{
printf("Could not find directory %s\n", oldDirectory);
return;
}
printf("Migrating old savedata to new location...\n");
for (de = readdir(dir); de != NULL; de = readdir(dir))
{
if ( SDL_strcmp(de->d_name, "..") == 0 ||
SDL_strcmp(de->d_name, ".") == 0 )
{
continue;
}
#define COPY_SAVEFILE(name) \
else if (SDL_strcmp(de->d_name, name) == 0) \
{ \
SDL_snprintf(oldLocation, sizeof(oldLocation), "%s%s", oldDirectory, name); \
SDL_snprintf(newLocation, sizeof(newLocation), "%ssaves/%s", output, name); \
PLATFORM_copyFile(oldLocation, newLocation); \
}
COPY_SAVEFILE("unlock.vvv")
COPY_SAVEFILE("tsave.vvv")
COPY_SAVEFILE("qsave.vvv")
#undef COPY_SAVEFILE
else if (SDL_strstr(de->d_name, ".vvvvvv.vvv") != NULL)
{
SDL_snprintf(oldLocation, sizeof(oldLocation), "%s%s", oldDirectory, de->d_name);
SDL_snprintf(newLocation, sizeof(newLocation), "%ssaves/%s", output, de->d_name);
PLATFORM_copyFile(oldLocation, newLocation);
}
else if (SDL_strstr(de->d_name, ".vvvvvv") != NULL)
{
SDL_snprintf(oldLocation, sizeof(oldLocation), "%s%s", oldDirectory, de->d_name);
SDL_snprintf(newLocation, sizeof(newLocation), "%slevels/%s", output, de->d_name);
PLATFORM_copyFile(oldLocation, newLocation);
}
else if (SDL_strcmp(de->d_name, "Saves") == 0)
{
SDL_snprintf(subDirLocation, sizeof(subDirLocation), "%sSaves/", oldDirectory);
subDir = opendir(subDirLocation);
if (!subDir)
{
printf("Could not open Saves/ subdir!\n");
continue;
}
for (
subDe = readdir(subDir);
subDe != NULL;
subDe = readdir(subDir)
) {
#define COPY_SAVEFILE(name) \
(SDL_strcmp(subDe->d_name, name) == 0) \
{ \
SDL_snprintf(oldLocation, sizeof(oldLocation), "%s%s", subDirLocation, name); \
SDL_snprintf(newLocation, sizeof(newLocation), "%ssaves/%s", output, name); \
PLATFORM_copyFile(oldLocation, newLocation); \
}
if COPY_SAVEFILE("unlock.vvv")
else if COPY_SAVEFILE("tsave.vvv")
else if COPY_SAVEFILE("qsave.vvv")
#undef COPY_SAVEFILE
}
}
}
#elif defined(_WIN32)
WIN32_FIND_DATA findHandle;
HANDLE hFind = NULL;
char fileSearch[MAX_PATH];
/* Same place, different layout. */
SDL_strlcpy(oldDirectory, output, sizeof(oldDirectory));
SDL_snprintf(fileSearch, sizeof(fileSearch), "%s\\*.vvvvvv", oldDirectory);
hFind = FindFirstFile(fileSearch, &findHandle);
if (hFind == INVALID_HANDLE_VALUE)
{
printf("Could not find directory %s\n", oldDirectory);
}
else do
{
if ((findHandle.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
{
SDL_snprintf(oldLocation, sizeof(oldLocation), "%s%s", oldDirectory, findHandle.cFileName);
SDL_snprintf(newLocation, sizeof(newLocation), "%slevels\\%s", output, findHandle.cFileName);
PLATFORM_copyFile(oldLocation, newLocation);
}
} while (FindNextFile(hFind, &findHandle));
#else
#error See PLATFORM_migrateSaveData
#endif
}
static void PLATFORM_copyFile(const char *oldLocation, const char *newLocation)
{
char *data;
size_t length, bytes_read, bytes_written;
/* Read data */
FILE *file = fopen(oldLocation, "rb");
if (!file)
{
printf("Cannot open/copy %s\n", oldLocation);
return;
}
fseek(file, 0, SEEK_END);
length = ftell(file);
fseek(file, 0, SEEK_SET);
data = (char*) SDL_malloc(length);
if (data == NULL)
{
VVV_exit(1);
}
bytes_read = fread(data, 1, length, file);
fclose(file);
if (bytes_read != length)
{
printf("An error occurred when reading from %s\n", oldLocation);
SDL_free(data);
return;
}
/* Write data */
file = fopen(newLocation, "wb");
if (!file)
{
printf("Could not write to %s\n", newLocation);
SDL_free(data);
return;
}
bytes_written = fwrite(data, 1, length, file);
fclose(file);
SDL_free(data);
/* WTF did we just do */
printf("Copied:\n\tOld: %s\n\tNew: %s\n", oldLocation, newLocation);
if (bytes_written != length)
{
printf("Warning: an error occurred when writing to %s\n", newLocation);
}
}
bool FILESYSTEM_openDirectoryEnabled(void)
{
/* This is just a check to see if we're on a desktop or tenfoot setup.