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Fix recursive scanning of directories

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ForeachDirectoryEntry didn't actually do anything with the `recursive`
parameter, and the corresponding callback parameter was shadowing the
actual recursion counters in the user functions.
This commit is contained in:
Yuri Kunde Schlesner 2016-06-19 00:09:16 -07:00
parent 8f86cc4df9
commit d6792632f0
3 changed files with 15 additions and 22 deletions
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8
src/citra_qt/game_list.cpp
View file

@ -120,11 +120,9 @@ void GameList::LoadInterfaceLayout()
void GameListWorker::AddFstEntriesToGameList(const std::string& dir_path, unsigned int recursion)
{
const auto callback = [&](unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name,
unsigned int recursion) -> bool {
const auto callback = [this, recursion](unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name) -> bool {
std::string physical_name = directory + DIR_SEP + virtual_name;
if (stop_processing)

22
src/common/file_util.cpp
View file

@ -434,7 +434,7 @@ bool CreateEmptyFile(const std::string &filename)
}
bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directory, DirectoryEntryCallable callback, unsigned int recursion)
bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directory, DirectoryEntryCallable callback)
{
LOG_TRACE(Common_Filesystem, "directory %s", directory.c_str());
@ -472,7 +472,7 @@ bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directo
continue;
unsigned ret_entries = 0;
if (!callback(&ret_entries, directory, virtual_name, recursion)) {
if (!callback(&ret_entries, directory, virtual_name)) {
callback_error = true;
break;
}
@ -497,10 +497,9 @@ bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directo
unsigned ScanDirectoryTree(const std::string &directory, FSTEntry& parent_entry, unsigned int recursion)
{
const auto callback = [&parent_entry](unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name,
unsigned int recursion) -> bool {
const auto callback = [recursion, &parent_entry](unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name) -> bool {
FSTEntry entry;
entry.virtualName = virtual_name;
entry.physicalName = directory + DIR_SEP + virtual_name;
@ -526,16 +525,15 @@ unsigned ScanDirectoryTree(const std::string &directory, FSTEntry& parent_entry,
};
unsigned num_entries;
return ForeachDirectoryEntry(&num_entries, directory, callback, recursion) ? num_entries : 0;
return ForeachDirectoryEntry(&num_entries, directory, callback) ? num_entries : 0;
}
bool DeleteDirRecursively(const std::string &directory, unsigned int recursion)
{
const static auto callback = [](unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name,
unsigned int recursion) -> bool {
const auto callback = [recursion](unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name) -> bool {
std::string new_path = directory + DIR_SEP_CHR + virtual_name;
if (IsDirectory(new_path)) {
@ -546,7 +544,7 @@ bool DeleteDirRecursively(const std::string &directory, unsigned int recursion)
return Delete(new_path);
};
if (!ForeachDirectoryEntry(nullptr, directory, callback, recursion))
if (!ForeachDirectoryEntry(nullptr, directory, callback))
return false;
// Delete the outermost directory

7
src/common/file_util.h
View file

@ -105,13 +105,11 @@ bool CreateEmptyFile(const std::string &filename);
* @param num_entries_out to be assigned by the callable with the number of iterated directory entries, never null
* @param directory the path to the enclosing directory
* @param virtual_name the entry name, without any preceding directory info
* @param recursion Number of children directory to read before giving up
* @return whether handling the entry succeeded
*/
using DirectoryEntryCallable = std::function<bool(unsigned* num_entries_out,
const std::string& directory,
const std::string& virtual_name,
unsigned int recursion)>;
const std::string& virtual_name)>;
/**
* Scans a directory, calling the callback for each file/directory contained within.
@ -119,10 +117,9 @@ using DirectoryEntryCallable = std::function<bool(unsigned* num_entries_out,
* @param num_entries_out assigned by the function with the number of iterated directory entries, can be null
* @param directory the directory to scan
* @param callback The callback which will be called for each entry
* @param recursion Number of children directories to read before giving up
* @return whether scanning the directory succeeded
*/
bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directory, DirectoryEntryCallable callback, unsigned int recursion = 0);
bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directory, DirectoryEntryCallable callback);
/**
* Scans the directory tree, storing the results.