looqs/cli/commanddelete.cpp

138 line
3.4 KiB
C++

#include <QCommandLineParser>
#include <QFile>
#include <QFileInfo>
#include <QDebug>
#include <QRegularExpression>
#include <QSqlError>
#include "commanddelete.h"
int CommandDelete::removeNonExistent(QSqlDatabase &db, bool verbose, bool dryRun, QString pattern)
{
// TODO: port this to QRegularExpression once >5.12 gets more widespread because of this bug
// https://bugreports.qt.io/browse/QTBUG-72539?focusedCommentId=439053&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel
// QRegularExpression regexPattern = QRegularExpression::wildcardToRegularExpression(pattern
bool usePattern = !pattern.isEmpty();
QRegExp regexPattern(pattern);
regexPattern.setPatternSyntax(QRegExp::PatternSyntax::WildcardUnix);
// TODO: try to translate pattern to SQL WHERE statement
QSqlQuery pathsQuery("SELECT path FROM file", db);
if(!pathsQuery.exec())
{
Utils::error() << "Failed to query current paths" << endl;
return 1;
}
while(pathsQuery.next())
{
QString path = pathsQuery.value(0).toString();
bool removeFile = true;
if(usePattern)
{
removeFile = regexPattern.exactMatch(path);
}
if(removeFile)
{
QFile file(path);
if(!file.exists())
{
if(!dryRun)
{
QSqlQuery query("DELETE FROM file WHERE path = ?", db);
query.addBindValue(path);
if(!query.exec())
{
Utils::error() << "Failed to delete " << path << query.lastError() << endl;
return 1;
}
if(verbose)
{
Utils::info() << "Deleted " << path << endl;
}
}
else
{
Utils::info() << "Would delete " << path << endl;
}
}
}
}
}
int CommandDelete::removePaths(const QStringList &paths, QSqlDatabase &db, bool verbose, bool dryRun)
{
int result = 0;
for(const QString &file : paths)
{
QFileInfo fileInfo(file);
QString absPath = fileInfo.absoluteFilePath();
if(fileExistsInDatabase(db, absPath))
{
if(!dryRun)
{
QSqlQuery deletionQuery("DELETE FROM file WHERE path = ?", db);
deletionQuery.addBindValue(absPath);
if(deletionQuery.exec())
{
if(verbose)
{
Utils::info() << "Deleted" << absPath << endl;
}
}
else
{
Utils::error() << "Failed to delete:" << absPath << deletionQuery.lastError() << endl;
result = 1;
}
}
}
else
{
Utils::error() << "No such file in database:" << absPath << endl;
result = 1;
}
}
return result;
}
int CommandDelete::handle(QStringList arguments)
{
QCommandLineParser parser;
parser.addOptions(
{{{"v", "verbose"}, "Print path of the files while deleting them"},
{{"n", "dry-run"}, "Only print which files would be deleted from the database, don't delete them"},
{"pattern",
"Only delete files from index matching the pattern, e. g. */.git/*. Only applies to --deleted or standalone.",
"pattern"},
{"deleted", "Delete all files from the index that don't exist anymore"}});
parser.addHelpOption();
parser.addPositionalArgument("delete", "Delete paths from the index", "delete [paths...]");
parser.process(arguments);
bool verbose = parser.isSet("verbose");
bool dryRun = parser.isSet("dry-run");
QString pattern = parser.value("pattern");
QSqlDatabase db = dbConnection();
if(parser.isSet("deleted"))
{
int result = removeNonExistent(db, verbose, dryRun, pattern);
if(result != 0)
{
return result;
}
}
QStringList files = parser.positionalArguments();
int result = removePaths(files, db, verbose, dryRun);
if(result != 0)
{
return result;
}
return 0;
}