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* add directories to index, will make things easier to deal with 

* reflect read-only status in generated volume
This commit is contained in:
Arisotura 2021-10-02 00:46:22 +02:00
parent 82fc4ff101
commit 1c1f5b9ebc
3 changed files with 262 additions and 64 deletions
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16
src/DSi_NAND.cpp
View File

@ -604,14 +604,14 @@ bool ImportFile(const char* path, const char* in)
return false;
}
u8 buf[0x200];
for (u32 i = 0; i < len; i += 0x200)
u8 buf[0x1000];
for (u32 i = 0; i < len; i += 0x1000)
{
u32 blocklen;
if ((i + 0x200) > len)
if ((i + 0x1000) > len)
blocklen = len - i;
else
blocklen = 0x200;
blocklen = 0x1000;
u32 nwrite;
fread(buf, blocklen, 1, fin);
@ -643,14 +643,14 @@ bool ExportFile(const char* path, const char* out)
return false;
}
u8 buf[0x200];
for (u32 i = 0; i < len; i += 0x200)
u8 buf[0x1000];
for (u32 i = 0; i < len; i += 0x1000)
{
u32 blocklen;
if ((i + 0x200) > len)
if ((i + 0x1000) > len)
blocklen = len - i;
else
blocklen = 0x200;
blocklen = 0x1000;
u32 nread;
f_read(&file, buf, blocklen, &nread);

265
src/FATStorage.cpp
View File

@ -115,7 +115,8 @@ UINT FATStorage::FF_WriteStorage(BYTE* buf, LBA_t sector, UINT num)
void FATStorage::LoadIndex()
{
Index.clear();
DirIndex.clear();
FileIndex.clear();
FILE* f = Platform::OpenLocalFile(IndexPath.c_str(), "r");
if (!f) return;
@ -126,12 +127,13 @@ void FATStorage::LoadIndex()
if (fgets(linebuf, 1536, f) == nullptr)
break;
u64 fsize;
s64 lastmodified;
u32 lastmod_internal;
if (linebuf[0] == 'D')
{
u32 readonly;
char fpath[1536] = {0};
int ret = sscanf(linebuf, "FILE %" PRIu64 " %" PRId64 " %u %[^\t\r\n]", &fsize, &lastmodified, &lastmod_internal, fpath);
if (ret < 4) continue;
int ret = sscanf(linebuf, "DIR %u %[^\t\r\n]",
&readonly, fpath);
if (ret < 2) continue;
for (int i = 0; i < 1536 && fpath[i] != '\0'; i++)
{
@ -139,16 +141,44 @@ void FATStorage::LoadIndex()
fpath[i] = '/';
}
IndexEntry entry;
DirIndexEntry entry;
entry.Path = fpath;
entry.IsReadOnly = readonly!=0;
DirIndex[entry.Path] = entry;
}
else if (linebuf[0] == 'F')
{
u32 readonly;
u64 fsize;
s64 lastmodified;
u32 lastmod_internal;
char fpath[1536] = {0};
int ret = sscanf(linebuf, "FILE %u %" PRIu64 " %" PRId64 " %u %[^\t\r\n]",
&readonly, &fsize, &lastmodified, &lastmod_internal, fpath);
if (ret < 5) continue;
for (int i = 0; i < 1536 && fpath[i] != '\0'; i++)
{
if (fpath[i] == '\\')
fpath[i] = '/';
}
FileIndexEntry entry;
entry.Path = fpath;
entry.IsReadOnly = readonly!=0;
entry.Size = fsize;
entry.LastModified = lastmodified;
entry.LastModifiedInternal = lastmod_internal;
Index[entry.Path] = entry;
FileIndex[entry.Path] = entry;
}
}
fclose(f);
// TODO: ensure the indexes are sane
// ie. ensure that we don't have files existing in inexistant directories
}
void FATStorage::SaveIndex()
@ -156,15 +186,92 @@ void FATStorage::SaveIndex()
FILE* f = Platform::OpenLocalFile(IndexPath.c_str(), "w");
if (!f) return;
for (const auto& [key, val] : Index)
for (const auto& [key, val] : DirIndex)
{
fprintf(f, "FILE %" PRIu64 " %" PRId64 " %u %s\r\n", val.Size, val.LastModified, val.LastModifiedInternal, val.Path.c_str());
fprintf(f, "DIR %u %s\r\n",
val.IsReadOnly?1:0, val.Path.c_str());
}
for (const auto& [key, val] : FileIndex)
{
fprintf(f, "FILE %u %" PRIu64 " %" PRId64 " %u %s\r\n",
val.IsReadOnly?1:0, val.Size, val.LastModified, val.LastModifiedInternal, val.Path.c_str());
}
fclose(f);
}
bool FATStorage::ExportFile(std::string path, std::string out)
{
FIL file;
FILE* fout;
FRESULT res;
res = f_open(&file, path.c_str(), FA_OPEN_EXISTING | FA_READ);
if (res != FR_OK)
return false;
u32 len = f_size(&file);
fout = fopen(out.c_str(), "wb");
if (!fout)
{
f_close(&file);
return false;
}
u8 buf[0x1000];
for (u32 i = 0; i < len; i += 0x1000)
{
u32 blocklen;
if ((i + 0x1000) > len)
blocklen = len - i;
else
blocklen = 0x1000;
u32 nread;
f_read(&file, buf, blocklen, &nread);
fwrite(buf, blocklen, 1, fout);
}
fclose(fout);
f_close(&file);
return true;
}
void FATStorage::ExportChanges(std::string sourcedir)
{
// reflect changes in the FAT volume to the host filesystem
// * delete directories and files that exist in the index but not in the volume
// * copy files to the host FS if they exist within the index and their size or
// internal last-modified time is different
// * index and copy directories and files that exist in the volume but not in
// the index
std::vector<std::string> deletelist;
std::vector<std::string> exportlist;
for (const auto& [key, val] : FileIndex)
{
std::string innerpath = "0:/" + val.Path;
FILINFO finfo;
FRESULT res = f_stat(innerpath.c_str(), &finfo);
if (res == FR_OK)
{
u32 lastmod = (finfo.fdate << 16) | finfo.ftime;
if ((val.Size != finfo.fsize) || (val.LastModifiedInternal != lastmod))
exportlist.push_back(key);
}
else if (res == FR_NO_FILE || res == FR_NO_PATH)
{
deletelist.push_back(key);
}
}
}
bool FATStorage::CanFitFile(u32 len)
{
FATFS* fs;
@ -181,16 +288,19 @@ bool FATStorage::CanFitFile(u32 len)
return (freeclusters >= len);
}
int FATStorage::CleanupDirectory(std::string path, int level)
bool FATStorage::DeleteDirectory(std::string path, int level)
{
if (level >= 32) return 44203;
if (level >= 32) return false;
if (path.length() < 1) return false;
fDIR dir;
FILINFO info;
FRESULT res;
printf("CHECKING %s (level %d) FOR SHIT\n", path.c_str(), level);
res = f_opendir(&dir, path.c_str());
if (res != FR_OK) return 0;
printf("PURGING %s (level %d)\n", path.c_str(), level);
std::string fullpath = "0:/" + path;
f_chmod(fullpath.c_str(), 0, AM_RDO);
res = f_opendir(&dir, fullpath.c_str());
if (res != FR_OK) return false;
std::vector<std::string> deletelist;
std::vector<std::string> subdirlist;
@ -203,17 +313,14 @@ printf("CHECKING %s (level %d) FOR SHIT\n", path.c_str(), level);
if (!info.fname[0]) break;
std::string fullpath = path + info.fname;
printf("- FOUND: %s\n", fullpath.c_str());
if (info.fattrib & AM_DIR)
{
subdirlist.push_back(fullpath);
}
else
{
if (Index.count(fullpath) < 1)
deletelist.push_back(fullpath);
else
survivors++;
}
}
@ -223,23 +330,85 @@ printf("- FOUND: %s\n", fullpath.c_str());
{
std::string fullpath = "0:/" + entry;
printf("- PURGING file %s\n", fullpath.c_str());
f_unlink(fullpath.c_str());
f_chmod(fullpath.c_str(), 0, AM_RDO);
res = f_unlink(fullpath.c_str());
if (res != FR_OK) return false;
}
for (auto& entry : subdirlist)
{
int res = CleanupDirectory(entry+"/", level+1);
if (res < 1)
{
if (!DeleteDirectory(entry+"/", level+1)) return false;
std::string fullpath = "0:/" + entry;
printf("- PURGING subdir %s\n", fullpath.c_str());
f_unlink(fullpath.c_str());
}
else
survivors++;
f_chmod(fullpath.c_str(), 0, AM_RDO);
res = f_unlink(fullpath.c_str());
if (res != FR_OK) return false;
}
return survivors;
res = f_unlink(fullpath.c_str());
if (res != FR_OK) return false;
return true;
}
void FATStorage::CleanupDirectory(std::string path, int level)
{
if (level >= 32) return;
fDIR dir;
FILINFO info;
FRESULT res;
printf("CHECKING %s (level %d) FOR SHIT\n", path.c_str(), level);
std::string fullpath = "0:/" + path;
res = f_opendir(&dir, fullpath.c_str());
if (res != FR_OK) return;
std::vector<std::string> filedeletelist;
std::vector<std::string> dirdeletelist;
std::vector<std::string> subdirlist;
for (;;)
{
res = f_readdir(&dir, &info);
if (res != FR_OK) break;
if (!info.fname[0]) break;
std::string fullpath = path + info.fname;
printf("- FOUND: %s\n", fullpath.c_str());
if (info.fattrib & AM_DIR)
{
if (DirIndex.count(fullpath) < 1)
dirdeletelist.push_back(fullpath);
else
subdirlist.push_back(fullpath);
}
else
{
if (FileIndex.count(fullpath) < 1)
filedeletelist.push_back(fullpath);
}
}
f_closedir(&dir);
for (auto& entry : filedeletelist)
{
std::string fullpath = "0:/" + entry;
printf("- PURGING file %s\n", fullpath.c_str());
f_chmod(fullpath.c_str(), 0, AM_RDO);
f_unlink(fullpath.c_str());
}
for (auto& entry : dirdeletelist)
{
DeleteDirectory(entry+"/", level+1);
}
for (auto& entry : subdirlist)
{
CleanupDirectory(entry+"/", level+1);
}
}
bool FATStorage::ImportFile(std::string path, std::string in)
@ -299,13 +468,13 @@ bool FATStorage::BuildSubdirectory(const char* sourcedir, const char* path, int
if (level == 0)
{
// remove whatever isn't in the index, as well as empty directories
// remove whatever isn't in the index
CleanupDirectory("", 0);
int srclen = strlen(sourcedir);
// iterate through the host directory:
// * directories will be added as needed
// * directories will be added if they aren't in the index
// * files will be added if they aren't in the index, or if the size or last-modified-date don't match
for (auto& entry : fs::recursive_directory_iterator(sourcedir))
{
@ -321,13 +490,27 @@ bool FATStorage::BuildSubdirectory(const char* sourcedir, const char* path, int
innerpath[i] = '/';
}
bool readonly = (entry.status().permissions() & fs::perms::owner_write) == fs::perms::none;
//std::chrono::duration<s64> bourf(lastmodified_raw);
//printf("DORP: %016llX\n", bourf.count());
if (entry.is_directory())
{
if (DirIndex.count(innerpath) < 1)
{
DirIndexEntry ientry;
ientry.Path = innerpath;
ientry.IsReadOnly = readonly;
innerpath = "0:/" + innerpath;
f_mkdir(innerpath.c_str());
if (f_mkdir(innerpath.c_str()) == FR_OK)
{
DirIndex[ientry.Path] = ientry;
printf("IMPORTING DIR %s (FROM %s), %d\n", innerpath.c_str(), fullpath.c_str(), readonly);
}
}
}
else if (entry.is_regular_file())
{
@ -337,23 +520,24 @@ bool FATStorage::BuildSubdirectory(const char* sourcedir, const char* path, int
s64 lastmodified_raw = std::chrono::duration_cast<std::chrono::seconds>(lastmodified.time_since_epoch()).count();
bool import = false;
if (Index.count(innerpath) < 1)
if (FileIndex.count(innerpath) < 1)
{
import = true;
}
else
{
IndexEntry& chk = Index[innerpath];
FileIndexEntry& chk = FileIndex[innerpath];
if (chk.Size != filesize) import = true;
if (chk.LastModified != lastmodified_raw) import = true;
}
if (import)
{
IndexEntry entry;
entry.Path = innerpath;
entry.Size = filesize;
entry.LastModified = lastmodified_raw;
FileIndexEntry ientry;
ientry.Path = innerpath;
ientry.IsReadOnly = readonly;
ientry.Size = filesize;
ientry.LastModified = lastmodified_raw;
innerpath = "0:/" + innerpath;
if (ImportFile(innerpath, fullpath))
@ -361,15 +545,16 @@ bool FATStorage::BuildSubdirectory(const char* sourcedir, const char* path, int
FILINFO finfo;
f_stat(innerpath.c_str(), &finfo);
entry.LastModifiedInternal = (finfo.fdate << 16) | finfo.ftime;
ientry.LastModifiedInternal = (finfo.fdate << 16) | finfo.ftime;
Index[entry.Path] = entry;
FileIndex[ientry.Path] = ientry;
printf("IMPORTING FILE %s (FROM %s)\n", innerpath.c_str(), fullpath.c_str());
printf("IMPORTING FILE %s (FROM %s), %d\n", innerpath.c_str(), fullpath.c_str(), readonly);
}
}
}
f_chmod(innerpath.c_str(), readonly?AM_RDO:0, AM_RDO);
}
SaveIndex();

19
src/FATStorage.h
View File

@ -49,8 +49,12 @@ private:
void LoadIndex();
void SaveIndex();
bool ExportFile(std::string path, std::string out);
void ExportChanges(std::string sourcedir);
bool CanFitFile(u32 len);
int CleanupDirectory(std::string path, int level);
bool DeleteDirectory(std::string path, int level);
void CleanupDirectory(std::string path, int level);
bool ImportFile(std::string path, std::string in);
bool BuildSubdirectory(const char* sourcedir, const char* path, int level);
bool Build(const char* sourcedir, u64 size, const char* filename);
@ -58,13 +62,22 @@ private:
typedef struct
{
std::string Path;
bool IsReadOnly;
} DirIndexEntry;
typedef struct
{
std::string Path;
bool IsReadOnly;
u64 Size;
s64 LastModified;
u32 LastModifiedInternal;
} IndexEntry;
} FileIndexEntry;
std::map<std::string, IndexEntry> Index;
std::map<std::string, DirIndexEntry> DirIndex;
std::map<std::string, FileIndexEntry> FileIndex;
};
#endif // FATSTORAGE_H