Begin delete command implementation

This commit is contained in:
Albert S. 2019-04-07 20:22:20 +02:00
parent 42a185cdd8
commit 2a1ee328cc
9 changed files with 167 additions and 4 deletions

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@ -27,7 +27,9 @@ SOURCES += \
odtprocessor.cpp \
utils.cpp \
odsprocessor.cpp \
qssgeneralexception.cpp
qssgeneralexception.cpp \
commanddelete.cpp \
commandupdate.cpp
HEADERS += \
encodingdetector.h \
@ -42,5 +44,7 @@ HEADERS += \
odtprocessor.h \
utils.h \
odsprocessor.h \
qssgeneralexception.h
qssgeneralexception.h \
commanddelete.h \
commandupdate.h
INCLUDEPATH += /usr/include/poppler/qt5/ /usr/include/quazip5

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@ -19,6 +19,21 @@ bool Command::fileExistsInDatabase(QSqlDatabase &db, QString path, qint64 mtime)
return query.value(0).toBool();
}
bool Command::fileExistsInDatabase(QSqlDatabase &db, QString path)
{
auto query = QSqlQuery("SELECT 1 FROM file WHERE path = ?", db);
query.addBindValue(path);
if(!query.exec())
{ throw QSSGeneralException("Error while trying to query for file existance");
}
if(!query.next())
{
return false;
}
return query.value(0).toBool();
}
QSqlDatabase Command::dbConnection()
{
if(dbStore.hasLocalData())

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@ -8,6 +8,7 @@
class Command
{
protected:
bool fileExistsInDatabase(QSqlDatabase &db, QString path);
bool fileExistsInDatabase(QSqlDatabase &db, QString path, qint64 mtime);
QByteArray readFile(QString path) const;
QString dbConnectionString;

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@ -199,7 +199,7 @@ int CommandAdd::handle(QStringList arguments)
{
if(result == SKIPPED)
{
qDebug() << "SKIPPED" << path << "as it already exists in the database";
qDebug() << "Skipped" << path << "as it already exists in the database";
}
else
{

107
cli/commanddelete.cpp Normal file
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@ -0,0 +1,107 @@
#include <QCommandLineParser>
#include <QFile>
#include <QFileInfo>
#include <QDebug>
#include <QRegularExpression>
#include <QSqlError>
#include "commanddelete.h"
int CommandDelete::handle(QStringList arguments)
{
QCommandLineParser parser;
parser.addOptions({
{ { "v", "verbose" }, "Print path of the files while deleting them" },
{ "pattern", "Only delete files from index matching the pattern, e. g. */.git/*", "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 removeNonExistant = parser.isSet("deleted");
bool verbose = parser.isSet("verbose");
QString pattern = parser.value("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);
QSqlDatabase db = dbConnection();
if(removeNonExistant)
{
//TODO: try to translate pattern to SQL WHERE
QSqlQuery pathsQuery("SELECT path FROM file", db);
if(!pathsQuery.exec())
{
qDebug() << "Failed to query current paths";
return 1;
}
while(pathsQuery.next())
{
QString path = pathsQuery.value(0).toString();
if(usePattern && regexPattern.exactMatch(path))
{
QFile file(path);
if(!file.exists())
{
QSqlQuery query("DELETE FROM file WHERE path = ?", db);
query.addBindValue(path);
if(!query.exec())
{
qDebug() << "Failed to delete " << path << query.lastError();
return 1;
}
if(verbose)
{
qInfo() << "Deleted " << path;
}
}
}
}
}
QStringList files = parser.positionalArguments();
for(QString &file : files)
{
QFileInfo fileInfo(file);
QString absPath = fileInfo.absoluteFilePath();
if(fileExistsInDatabase(db, absPath))
{
QSqlQuery deletionQuery("DELETE FROM file WHERE path = ?", db);
deletionQuery.addBindValue(absPath);
if(deletionQuery.exec())
{
if(verbose)
{
qInfo() << "Deleted" << absPath;
}
}
else
{
qDebug() << "Failed to delete:" << absPath << deletionQuery.lastError();
}
}
else
{
qInfo() << "No such file in database:" << absPath;
}
}
return 0;
}

13
cli/commanddelete.h Normal file
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@ -0,0 +1,13 @@
#ifndef COMMANDDELETE_H
#define COMMANDDELETE_H
#include "command.h"
class CommandDelete : public Command
{
public:
using Command::Command;
int handle(QStringList arguments) override;
};
#endif // COMMANDDELETE_H

8
cli/commandupdate.cpp Normal file
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@ -0,0 +1,8 @@
#include "commandupdate.h"
int CommandUpdate::handle(QStringList arguments)
{
}

14
cli/commandupdate.h Normal file
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@ -0,0 +1,14 @@
#ifndef COMMANDUPDATE_H
#define COMMANDUPDATE_H
#include "command.h"
class CommandUpdate : public Command
{
public:
CommandUpdate();
int handle(QStringList arguments) override;
};
#endif // COMMANDUPDATE_H

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@ -17,6 +17,7 @@
#include "defaulttextprocessor.h"
#include "command.h"
#include "commandadd.h"
#include "commanddelete.h"
void printUsage(QString argv0)
{
qInfo() << "Usage: " << argv0 << "command";
@ -30,7 +31,7 @@ Command *commandFromName(QString name, QString connectionstring)
}
if(name == "delete")
{
return new CommandDelete(connectionstring);
}
if(name == "update")
{