static void
S_read_fsfolder(RAMFolder *self)
{
u32_t i, max;
/* Open an FSFolder for reading. */
FSFolder *source_folder = FSFolder_new(self->path);
VArray *files = FSFolder_List(source_folder);
/* Copy every file in the FSFolder into RAM. */
for (i = 0, max = VA_Get_Size(files); i < max; i++) {
CharBuf *filepath = (CharBuf*)VA_Fetch(files, i);
InStream *source_stream
= FSFolder_Open_In(source_folder, filepath);
OutStream *outstream = RAMFolder_Open_Out(self, filepath);
if (!source_stream) { THROW("Can't open %o", filepath); }
if (!outstream) { THROW("Can't open %o", filepath); }
OutStream_Absorb(outstream, source_stream);
OutStream_Close(outstream);
InStream_Close(source_stream);
DECREF(outstream);
DECREF(source_stream);
}
DECREF(files);
FSFolder_Close(source_folder);
DECREF(source_folder);
}
static void
S_do_consolidate(CompoundFileWriter *self, CompoundFileWriterIVARS *ivars) {
UNUSED_VAR(self);
Folder *folder = ivars->folder;
Hash *metadata = Hash_new(0);
Hash *sub_files = Hash_new(0);
Vector *files = Folder_List(folder, NULL);
Vector *merged = Vec_new(Vec_Get_Size(files));
String *cf_file = (String*)SSTR_WRAP_UTF8("cf.dat", 6);
OutStream *outstream = Folder_Open_Out(folder, (String*)cf_file);
bool rename_success;
if (!outstream) { RETHROW(INCREF(Err_get_error())); }
// Start metadata.
Hash_Store_Utf8(metadata, "files", 5, INCREF(sub_files));
Hash_Store_Utf8(metadata, "format", 6,
(Obj*)Str_newf("%i32", CFWriter_current_file_format));
Vec_Sort(files);
for (uint32_t i = 0, max = Vec_Get_Size(files); i < max; i++) {
String *infilename = (String*)Vec_Fetch(files, i);
if (!Str_Ends_With_Utf8(infilename, ".json", 5)) {
InStream *instream = Folder_Open_In(folder, infilename);
Hash *file_data = Hash_new(2);
int64_t offset, len;
if (!instream) { RETHROW(INCREF(Err_get_error())); }
// Absorb the file.
offset = OutStream_Tell(outstream);
OutStream_Absorb(outstream, instream);
len = OutStream_Tell(outstream) - offset;
// Record offset and length.
Hash_Store_Utf8(file_data, "offset", 6,
(Obj*)Str_newf("%i64", offset));
Hash_Store_Utf8(file_data, "length", 6,
(Obj*)Str_newf("%i64", len));
Hash_Store(sub_files, infilename, (Obj*)file_data);
Vec_Push(merged, INCREF(infilename));
// Add filler NULL bytes so that every sub-file begins on a file
// position multiple of 8.
OutStream_Align(outstream, 8);
InStream_Close(instream);
DECREF(instream);
}
}
// Write metadata to cfmeta file.
String *cfmeta_temp = (String*)SSTR_WRAP_UTF8("cfmeta.json.temp", 16);
String *cfmeta_file = (String*)SSTR_WRAP_UTF8("cfmeta.json", 11);
Json_spew_json((Obj*)metadata, (Folder*)ivars->folder, cfmeta_temp);
rename_success = Folder_Rename(ivars->folder, cfmeta_temp, cfmeta_file);
if (!rename_success) { RETHROW(INCREF(Err_get_error())); }
// Clean up.
OutStream_Close(outstream);
DECREF(outstream);
DECREF(files);
DECREF(metadata);
/*
HashIterator *iter = HashIter_new(sub_files);
while (HashIter_Next(iter)) {
String *merged_file = HashIter_Get_Key(iter);
if (!Folder_Delete(folder, merged_file)) {
String *mess = MAKE_MESS("Can't delete '%o'", merged_file);
DECREF(sub_files);
Err_throw_mess(ERR, mess);
}
}
DECREF(iter);
*/
DECREF(sub_files);
for (uint32_t i = 0, max = Vec_Get_Size(merged); i < max; i++) {
String *merged_file = (String*)Vec_Fetch(merged, i);
if (!Folder_Delete(folder, merged_file)) {
String *mess = MAKE_MESS("Can't delete '%o'", merged_file);
DECREF(merged);
Err_throw_mess(ERR, mess);
}
}
DECREF(merged);
}