CactiChameleon9/PrismLauncher
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we want to make links!

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Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>
This commit is contained in:
Rachel Powers
2023-02-06 23:05:06 -08:00
parent 6dcf34acdc
commit f794e49bb6
14 changed files with 918 additions and 71 deletions
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87
launcher/FileSystem.cpp
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@ -152,9 +152,11 @@ bool ensureFolderPathExists(QString foldernamepath)
return success;
}
/// @brief Copies a directory and it's contents from src to dest
/// @param offset subdirectory form src to copy to dest
/// @return if there was an error during the filecopy
/**
* @brief Copies a directory and it's contents from src to dest
* @param offset subdirectory form src to copy to dest
* @return if there was an error during the filecopy
*/
bool copy::operator()(const QString& offset, bool dryRun)
{
using copy_opts = fs::copy_options;
@ -215,6 +217,85 @@ bool copy::operator()(const QString& offset, bool dryRun)
return err.value() == 0;
}
/**
* @brief links a directory and it's contents from src to dest
* @param offset subdirectory form src to link to dest
* @return if there was an error during the attempt to link
*/
bool create_link::operator()(const QString& offset, bool dryRun)
{
m_linked = 0; // reset counter
auto src = PathCombine(m_src.absolutePath(), offset);
auto dst = PathCombine(m_dst.absolutePath(), offset);
std::error_code err;
// you can't hard link a directory so make sure if we deal with a directory we do so recursively
if (m_useHardLinks)
m_recursive = true;
// Function that'll do the actual linking
auto link_file = [&](QString src_path, QString relative_dst_path) {
if (m_matcher && (m_matcher->matches(relative_dst_path) != m_whitelist))
return;
auto dst_path = PathCombine(dst, relative_dst_path);
if (!dryRun) {
ensureFilePathExists(dst_path);
if (m_useHardLinks) {
if (m_debug)
qDebug() << "making hard link:" << src_path << "to" << dst_path;
fs::create_hard_link(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
} else if (fs::is_directory(StringUtils::toStdString(src_path))) {
if (m_debug)
qDebug() << "making directory_symlink:" << src_path << "to" << dst_path;
fs::create_directory_symlink(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
} else {
if (m_debug)
qDebug() << "making symlink:" << src_path << "to" << dst_path;
fs::create_symlink(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
}
}
if (err) {
qWarning() << "Failed to link files:" << QString::fromStdString(err.message());
qDebug() << "Source file:" << src_path;
qDebug() << "Destination file:" << dst_path;
qDebug() << "Error catagory:" << err.category().name();
qDebug() << "Error code:" << err.value();
m_last_os_err = err.value();
emit linkFailed(src_path, dst_path, err);
} else {
m_linked++;
emit fileLinked(relative_dst_path);
}
};
if ((!m_recursive) || !fs::is_directory(StringUtils::toStdString(src))) {
if (m_debug)
qDebug() << "linking single file or dir:" << src << "to" << dst;
link_file(src, "");
} else {
if (m_debug)
qDebug() << "linking recursivly:" << src << "to" << dst;
QDir src_dir(src);
QDirIterator source_it(src, QDir::Filter::Files | QDir::Filter::Hidden, QDirIterator::Subdirectories);
while (source_it.hasNext()) {
auto src_path = source_it.next();
auto relative_path = src_dir.relativeFilePath(src_path);
link_file(src_path, relative_path);
}
}
return err.value() == 0;
}
bool move(const QString& source, const QString& dest)
{
std::error_code err;