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