Release v0.5.1

Since 7c5c91e we wrongly merge lone words for paths queries too.
This creates unintended behaviour.

Fix it by creating a new paths query without merged words, which
restores the original behaviour.

Also, get rid of some redundant calls to createFinalTokens()

CHANGELOG.md

@@ -1,4 +1,49 @@
 # looqs: Release notes
+## 2022-07-30 - v0.5.1
+
+CHANGES:
+	- gui: Fix regression in implicit paths queries introduced in previous version
+
+## 2022-07-29 - v0.5
+This release features multiple fixes and enhancements.
+
+It changes the database to drop an unused content column. Dropping it allows us
+to change to a contentless sqlite FTS index which frees up space.
+
+Upgrading might take a few seconds to a few minutes as looqs will recreate the whole index.
+How long this will take depends on the size of your database.
+
+The other major highlight is preview support for .odt files (unformatted, like plaintext).
+
+List of changes:
+
+ - General: As Ubuntu 21.10 is EOL, no looqs package will be provided for it any longer
+ - General: Update database scheme to drop unused content column and free up space
+ - General: Properly escape FTS arguments passed to sqlite to avoid query errors on some terms
+ - GUI: Fix double searches and results when explicit content search filters are provided
+ - GUI: Previews: Plaintext previews now obey scale selection too
+ - GUI: Previews: Begin basic, unformatted previews of .odt files
+ - GUI: Previews: Add file path below every preview for convenience (hovering unnecessary now).
+ - GUI: Previews: Fix bug causing an empty preview if a plaintext file started with a searched word
+ - GUI: Add menu option to open user manual
+ - GUI: Show progress dialog during database upgrade
+ - General: Correct error count in some conditions for failed paths
+ - General: Update user manual
+ - Minor improvements
+
+## 2022-06-29 - v0.4
+This release makes several minor improvements and begins prebuilt binaries of looqs that (should) run
+on any recent Linux distribution.
+
+ - General: Begin new, experimental distro-agnostic tarball containing prebuilt binaries and libs. See the README for more information.
+ - GUI: In the "Previews" tab, allow filtering by file, to only show previews for a specific file.
+ - GUI: Add "Show previews" context menu option to files in result (if available)
+ - General: Fix build with libquazip 1.X
+ - General: Properly report access errors as a failure during indexing
+ - GUI: Add button to export a list of all paths that failed
+ - General: Improve dir scan threading
+ - CLI: Improve helptext
+ - General: Add voidlinux build instructions
 
 ## 2022-06-14 - v0.3
 CHANGES:

README.md

@@ -3,8 +3,6 @@ looqs is a tool that creates a full-text search index for your files. It allows
 search terms have been found, as shown in the screenshots below.
 
 ## Screenshots
-The screenshots in this section may occasionally be slightly outdated, but they are usually recent enough to get an overall impression of the current state of the GUI.
-
 ### Preview
 looqs allow you to look inside files. It marks what you have searched for.
 
@@ -28,9 +26,10 @@ There is no need to write the long form of filters. There are also booleans avai
 
 ![Screenshot looqs results](https://garage.quitesimple.org/assets/looqs/looqs_beatles_marley.png)
 
+The screenshots in this section may occasionally be slightly outdated, but they are usually recent enough to get an overall impression of the current state of the GUI.
 
 ## Current status
-Last version: 2022-06-14, v0.3
+Latest version: 2022-07-30, v0.5.1
 
 Please see [Changelog](CHANGELOG.md) for a human readable list of changes.
 
@@ -47,7 +46,7 @@ Please see [Changelog](CHANGELOG.md) for a human readable list of changes.
 - GUI, CLI interface
 - Indexing of file path and some metadata.
 - Indexing of file file content for FTS search. Currently: .pdf, odt, docx, plaintext.
-- Preview of file formats: Currently: .pdf, plaintext
+- Preview of file formats: Currently: .pdf, .odt, plaintext
 - Highlight searched terms.
 - Quickly open PDF viewer or text editor at location of preview
 - Search filters
@@ -58,6 +57,8 @@ Linux (on amd64) is currently the main focus. Currently, I don't plan on support
 ### Licence
 GPLv3.
 
+For the dependencies/third-party libraries, see: LICENSE-3RD-PARTY
+
 ### Contributing
 Please see the [Contribution guidelines](CONTRIBUTING.md) file.
 
@@ -67,7 +68,7 @@ Please see [USAGE.md](USAGE.md) for the user manual. There is also [HACKING.md](
 
 ## Build
 
-### Ubuntu 21.10/22.04
+### Debian/Ubuntu
 
 To build on Ubuntu and Debian, clone the repo and then run:
 ```
@@ -78,12 +79,23 @@ qmake
 make
 ```
 
+### Void
+```
+# as root
+xbps-install qt5-devel poppler-qt5-devel quazip-qt5-devel uchardet-devel gcc make
+# as user
+git submodule init
+git submodule update
+qmake
+make
+```
+
 The GUI is located in `gui/looqs-gui`, the binary for the CLI is in `cli/looqs`
 
 ## Packages
 At this point, looqs is not in any official distro package repo, but I maintain some packages.
 
-### Ubuntu 21.10/22.04
+### Ubuntu 22.04
 Latest release can be installed using apt from the repo.
 ```
 # First, obtain key, assume it's trusted.
@@ -95,7 +107,35 @@ sudo apt-get update
 sudo apt-get install looqs
 ```
 
+### Prebuilt tarball (distro-agnostic) (EXPERIMENTAL)
+looqs is also distributed as a tarball containing prebuilt binaries and its library dependencies. The tarball is
+built using the Gentoo Hardened toolchain and the Qt version is smaller than what distributions usually
+include. It does not include libraries that should mess with fontrendering or the graphics stack. The binaries should run on any recent Linux distribution (requires glibc 2.34 or newer at least) and expects
+dependencies such as libGL to be provided by your distribution already (should be the case).
+
+It's considered experimental for two reasons. Firstly, looqs has no updater (yet). You will have to manually check for updates. Secondly, I can't guarantee that I'll be quick with updates of the tarball specifically if the library versions become outdated between looqs updates.
+
+You are therefore encouraged to use distro-native packages or to build it yourself if possible.
+
+The tarball can be obtained here: https://repo.quitesimple.org/tarball/looqs
+
+Quick start:
+
+```
+# Verify sig, see the end of this document: gpg --verify looqs-v0.4.tar.xz.sig
+tar xf looqs-v0.4.tar.xz # Replace with the actual version you have obtained
+cd looqs-v0.4
+./looqs-gui # or ./looqs for the CLI
+```
+
+An AppImage may accompany the tarball in the future.
+
+
 ### Other distros
 I'll probably add a package for voidlinux at some point and maybe will provide a Gentoo ebuild. However, I would appreciate help for others distros. If you create a package, let me know!
 
-As for distro-agnostic packages, I will also take a look into appimage / flatpak etc.  and/or maybe just provide a self-contained archive.
+
+### Signature verification
+Release tags can be verified with  [my PGP public key](https://quitesimple.org/share/pubkey). For what little it's worth, its fingerprint is: `C342 CA02 D2EC 2E14 F3C3  D5FF 7F7B 4C08 02CD 02F2`
+
+Packages can be verified with the [repo-specific public key](https://repo.quitesimple.org/repo.quitesimple.org.asc). For what little it's worth, its fingerprint is: `1B49 45B3 16B2 468A 3DAC  C1E0 75EF 3FE8 D753 C8F9`

USAGE.md

@@ -9,26 +9,19 @@ looqs is still at an early stage and may exhibit some weirdness and contain bugs
 ## Current Limitations and things to know
 You should be aware of the following:
 
-- It may seem natural, but the GUI and CLI operate on the same database, so if you add files using the CLI, the GUI will search them too.
+- It may seem natural, but the GUI and CLI operate on the same database, so if you add files using the CLI, the GUI will know about them too.
 
 - If a file is listed in the "Search results" tab, it does not imply that a preview will be available in the "Previews" tab, as looqs can search more file formats than it can generate previews for currently.
 
-- Database paths are stored inefficiently, not deduplicated to simplify queries. This may add up quickly. Also, each PDF text is stored twice. Each page separately + the whole document to simplify queries.
-To give you some idea: At the time this section was written, 167874 files were in my index. A FTS index was built for 14280 of those, of which 4146 were PDF documents. The PDFs take around 10GB storage space on the filesystem. All files for which an FTS has been built are around 7GB in size on the filesystem. The looqs database had a size of 1.6 GB.
-
-- Existing files are considered modified when the mtime has changed. looqs currently does not check whether the content
-has changed. 
+- Existing files are considered modified when the modification time has changed. looqs currently does not check whether the content has changed.
 
 ## Config
-The config file is in `$HOME/.config/quitesimple.org/looqs.conf`. It will be created on first execution of the CLI or GUI
-interface. The GUI has a menu entry to quickly open this config file. This is to be considered temporary and will be removed once the GUI itself can edit all settings.
+The config file is in `$HOME/.config/quitesimple.org/looqs.conf`. It will be created on first execution of the CLI or GUI interface. Generally, you should not edit this file directly. Instead, use the "Settings" tab in the GUI.
 
-Database default path: `$HOME/.local/share/quitesimple.org/looqs/looqs.sqlite`. If this does not work for
-you, move it and adjust adjust the path in the config file.
+Database default path: `$HOME/.local/share/quitesimple.org/looqs/looqs.sqlite`. If you prefer a different path, move it and adjust the path.
 
 
 ## GUI
-The GUI is minimal at this point. Depending on what you want to do, you may need to open the config file and change the settings there. Chances are that you may not need to do that. 
 
 ### First run
 You will be presented with an empty list. Go to the **"Index"** tab, add some directories and click **"Start indexing"**.
@@ -37,22 +30,21 @@ For large directories the progress bar is essentially just decoration. As long a
 increase, everything is fine even if it seems the progress bar is stuck.
 
 The indexing can be stopped. If you run it again you do not start from scratch, because looqs knows
-which files have been modified or not since they have been added to the index. Thus, files will
-only be reprocedded when necessary. Note that cancellation itself may take a moment as files finish processing. 
+which files have been modified since they have been added to the index. Thus, files will
+only be reprocessed when necessary. Note that cancellation itself may take a moment as files finish processing.
 
 ### Search
-The text field at the top is where you type your query. It can be selected quickly using **CTRL + L**. Filters are avalable,
-see this document at the end. By default, both the full path and the content are searched. Path names take precedence.
+The text field at the top is where you type your query. It can be selected quickly using **CTRL + L**. Filters are available, see this document at the end. By default, both the full path and the content are searched. Path names take precedence, i. e. they will appear the top of the list.
 
 ### Configuring PDF viewer
 It's most convenient if, when you click on a preview, the PDF reader opens the page you clicked. For that, looqs needs to know which viewer you want to launch.
 
-It tries to auto detect some common viewers. You must set the value of the ```pdfviewer=``` config entry yourself if it doesn't do something you
-like, such as not opening your favorite viewer. In the command line options, "%f" represents the filepath, "%p" the page number.
+It tries to auto detect some common viewers. You must set the value in the "Settings" tab yourself if the
+default does not work for you. In the command line options, "%f" represents the filepath, "%p" the page number.
 
 ### Preview tab
 The preview tab shows previews. It marks your search keywords too. Click on a preview to open the file.
-A right click on a preview allows you to copy the file path, or to open the containing folder. Hovering tells you which file the preview originates from.
+A right click on a preview allows you to copy the file path, or to open the containing folder.
 
 ### Syncing index
 Over time, files get deleted or their content changes. Go to **looqs** -> **Sync index**. looqs will reindex the content of files which have been changed. Files that cannot be found anymore will be removed from the index.
@@ -85,12 +77,11 @@ There is an implicit "AND" condition, meaning if you search for "photo" and "mou
 will be shown containing both terms, but not either alone.
 
 ### Deletion and Fixing Out of sync index
-You sometimes delete files, to get rid of those from the index too, run:
+To get rid of deleted files from the index, run:
 
 ```
 looqs delete --deleted --dry-run
 ```
-
 This commands lists all files which are indexed, but which cannot be found anymore.
 
 Remove them using:
@@ -126,13 +117,13 @@ looqs update
 ```
 
 This will not add new files, you must run ```looqs add``` for this. For this reason, most users
-will probably seldomly use the 'update' command alone.
+will probably seldom use the 'update' command alone.
 
 
 ## Tips
 
 ### Keeping index up to date
-The most obvious way is to use the GUI and add your favorite paths in the "Index" tab. Then occasionally, just rescan. This works for me personally, looqs quickly picks up new files. This however may not be good enough for some users.
+The most obvious way is to use the GUI to add your favorite paths in the "Index" tab. Then occasionally, just rescan. This works for me personally, looqs quickly picks up new files. This however may not be good enough for some users.
 
 Some users may prefer setting up cronjobs or wire up the CLI interface with file system monitoring tools such as [adhocify](https://github.com/quitesimpleorg/adhocify).
 
@@ -144,20 +135,20 @@ are indexed by looqs, you may find the lh (look here) alias useful:
 alias lh='looqs search $(pwd)'
 ```
 
-So typing "lh recipes" searchs the current dir and its subdirs for a file containing 'recipes'.
+So typing "lh recipes" searches the current dir and its subdirs for a file containing 'recipes'. Alternatively, a "lh c:(rice)" may be a quick grep alternative.
 
 ## Query syntax / Search filters
 A number of search filters are available.
 
 | Filter (long) |  Filter (short) | Explanation |
 | ----------- | ----------- |----------- |
-| path.contains:(term) | p:(term) | Pretty much a SQL LIKE '%term%' conditions, just searches the path string |
+| path.contains:(term) | p:(term) | Pretty much a SQL LIKE '%term%' condition, just searches the path string |
 | path.ends:(term) | pe:(term) | Filters path ending with the specified term, e. g.: pe:(.ogg) |
 | path.begins:(term) | pb:(term) |  Filters path beginning with the specified term |
-| contains:(terms) | c:(terms) | ull-text search, also understands quotes | 
-
-Filters can be combined. The booleans AND and OR are supported. Negations can be applied too, except for c:(). 
-The AND boolean is implicit and thus entering it strictly optional. 
+| contains:(terms) | c:(terms) | Full-text search, also understands quotes |
+| limit:(integer) | - | Limits the number of results. The default is 1000. Say "limit:0" to see all results |
+Filters can be combined. The booleans AND and OR are supported. Negations can be applied too, except for c:(). Negations are specified with "!".
+The AND boolean is implicit and thus entering it strictly optional.
 
 Examples:
 
@@ -166,8 +157,10 @@ Examples:
 |pe:(.ogg) p:(marley)| Finds paths that end with .ogg and contain 'marley' (case-insensitive)
 |p:(slides) support vector machine           |Performs a content search for 'support vector machine' in all paths containing 'slides'|
 |p:(notes) (pe:(odt) OR pe:(docx))          |Finds files such as notes.docx, notes.odt but also any .docs and .odt when the path contains the string 'notes'|
-|memcpy !(pe:(.c) OR pe:(.cpp))| Performs a FTS search for 'memcpy' but excludes .cpp and .c files. 
-|c:("I think, therefore")|Performs a FTS search for the phrase "I think, therefore". 
+|memcpy !(pe:(.c) OR pe:(.cpp))| Performs a FTS search for 'memcpy' but excludes .cpp and .c files.|
+|c:("I think, therefore")|Performs a FTS search for the phrase "I think, therefore".|
+|c:("invoice") Downloads|This query is equivalent to c:("invoice") p:("Downloads")|
+
 
 
 

cli/cli.pro

@@ -37,6 +37,12 @@ else:unix: LIBS += -L$$OUT_PWD/../shared/ -lshared
 
 LIBS += -luchardet -lpoppler-qt5 -lquazip5
 
+packagesExist(quazip1-qt5) {
+	PKGCONFIG += quazip1-qt5
+	CONFIG += link_pkgconfig
+	LIBS -= -lquazip5
+}
+
 INCLUDEPATH += $$PWD/../shared
 DEPENDPATH += $$PWD/../shared
 

cli/commandadd.cpp

@@ -47,7 +47,8 @@ int CommandAdd::handle(QStringList arguments)
 					   {{"t", "threads"}, "Number of threads to use.", "threads"}});
 
 	parser.addHelpOption();
-	parser.addPositionalArgument("add", "Add paths to the index", "add [paths...]");
+	parser.addPositionalArgument("add", "Add paths to the index",
+								 "add [paths...]. If no path is given, read from stdin, one path per line.");
 
 	parser.process(arguments);
 	this->keepGoing = parser.isSet("continue");

cli/main.cpp

@@ -26,10 +26,12 @@
 #include "sandboxedprocessor.h"
 #include "../shared/common.h"
 #include "../shared/filescanworker.h"
+#include "../shared/dbmigrator.h"
 
 void printUsage(QString argv0)
 {
 	qInfo() << "Usage:" << argv0 << "command";
+	qInfo() << "Valid commands: add, update, delete, search, list. Each command has a --help option.";
 }
 
 Command *commandFromName(QString name, SqliteDbService &dbService)
@@ -74,6 +76,27 @@ int main(int argc, char *argv[])
 	try
 	{
 		Common::ensureConfigured();
+
+		DatabaseFactory factory{Common::databasePath()};
+		DBMigrator migrator{factory};
+		if(migrator.migrationNeeded())
+		{
+			Logger::info() << "Database is being upgraded, please be patient..." << Qt::endl;
+
+			QObject::connect(&migrator, &DBMigrator::migrationDone,
+							 [&](uint32_t migration)
+							 { Logger::info() << "Progress: Successfully migrated to: " << migration << Qt::endl; });
+			QObject::connect(&migrator, &DBMigrator::done,
+							 []() { Logger::info() << "Database upgrade successful" << Qt::endl; });
+			QObject::connect(&migrator, &DBMigrator::error,
+							 [&](QString error)
+							 {
+								 Logger::error() << error << Qt::endl;
+								 qApp->quit();
+							 });
+
+			migrator.performMigrations();
+		}
 	}
 	catch(LooqsGeneralException &e)
 	{
@@ -97,7 +120,7 @@ int main(int argc, char *argv[])
 
 		QString file = args.at(1);
 		SandboxedProcessor processor(file);
-		return processor.process();
+		return static_cast<int>(processor.process());
 	}
 	Command *cmd = commandFromName(commandName, dbService);
 	if(cmd != nullptr)
@@ -116,7 +139,7 @@ int main(int argc, char *argv[])
 	}
 	else
 	{
-		Logger::error() << "Unknown command:" << commandName << Qt::endl;
+		printUsage(argv0);
 		return 1;
 	}
 

gui/aboutdialog.cpp

@@ -0,0 +1,74 @@
+#include <QTabWidget>
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QTextBrowser>
+#include <QPushButton>
+#include "aboutdialog.h"
+#include "common.h"
+
+AboutDialog::AboutDialog(QWidget *parent) : QDialog(parent)
+{
+	QVBoxLayout *layout = new QVBoxLayout(this);
+	QTabWidget *tabWidget = new QTabWidget(this);
+
+	this->setWindowTitle("About looqs");
+
+	QHBoxLayout *closeLayout = new QHBoxLayout();
+	QPushButton *closeButton = new QPushButton(this);
+	closeButton->setText("Close");
+	closeButton->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
+	connect(closeButton, &QPushButton::clicked, this, &QDialog::close);
+
+	closeLayout->setMargin(10);
+	closeLayout->addStretch(10);
+	closeLayout->addWidget(closeButton);
+
+	layout->addWidget(tabWidget);
+	layout->addLayout(closeLayout);
+	QFrame *frame = new QFrame(this);
+	QVBoxLayout *aboutLayout = new QVBoxLayout(frame);
+	frame->setLayout(aboutLayout);
+
+	QLabel *aboutLooqs = new QLabel(this);
+	QString html = "<h2>looqs</h2>";
+	html += "Full-text search with previews for your files<br><br>";
+	html += "Copyright (c) 2018-2022: Albert Schwarzkopf<br><br>";
+	html += QString("Version: %1<br><br>").arg(Common::versionText());
+	html += "Contact: looqs at quitesimple dot org<br><br>";
+	html += "Website: <a href=\"https://quitesimple.org\">https://quitesimple.org</a><br><br>";
+	html += "Source code: <a "
+			"href=\"https://github.com/quitesimpleorg/looqs\">https://github.com/quitesimpleorg/looqs</a><br><br>";
+	html += "License: GPLv3<br><br>";
+	html += "looqs is open source and free of charge in the hope it will be useful. The author(s) do not "
+			"give any warranty. In the unlikely event of any damage, the author(s) cannot be held responsible. "
+			"You are using looqs at your own risk<br><br>";
+	html += "looqs uses third-party libraries, please see the corresponding tab.";
+	aboutLooqs->setText(html);
+	aboutLooqs->setTextFormat(Qt::RichText);
+
+	QLabel *logo = new QLabel(this);
+	QImage image(QString(":/looqs.svg"));
+	logo->setPixmap(QPixmap::fromImage(image));
+
+	aboutLayout->addWidget(logo);
+	aboutLayout->addWidget(aboutLooqs);
+
+	tabWidget->addTab(frame, "About");
+
+	QFile license(QString(":/LICENSE"));
+	license.open(QIODevice::ReadOnly);
+	QString licenseText = license.readAll();
+
+	QFile thirdPartyLicense(QString(":./LICENSE-3RD-PARTY"));
+	thirdPartyLicense.open(QIODevice::ReadOnly);
+	QString thirdPartyLicenseInfo = thirdPartyLicense.readAll();
+
+	QTextBrowser *licenseTextBrowser = new QTextBrowser(this);
+	licenseTextBrowser->setText(licenseText);
+
+	QTextBrowser *thirdPartyLicenceTextBrowser = new QTextBrowser(this);
+	thirdPartyLicenceTextBrowser->setText(thirdPartyLicenseInfo);
+
+	tabWidget->addTab(licenseTextBrowser, "License");
+	tabWidget->addTab(thirdPartyLicenceTextBrowser, "Third-party libraries");
+}

gui/aboutdialog.h

@@ -0,0 +1,12 @@
+#ifndef ABOUTDIALOG_H
+#define ABOUTDIALOG_H
+#include <QDialog>
+
+class AboutDialog : public QDialog
+{
+	Q_OBJECT
+  public:
+	AboutDialog(QWidget *parent = nullptr);
+};
+
+#endif // ABOUTDIALOG_H

gui/gui.pro

@@ -7,7 +7,11 @@
 QT       += core concurrent gui network
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
 CONFIG += c++17
+
+
+
 TARGET = looqs-gui
 TEMPLATE = app
 
@@ -23,6 +27,7 @@ DEFINES += QT_DEPRECATED_WARNINGS
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
 SOURCES += \
+    aboutdialog.cpp \
     ipcpreviewclient.cpp \
     ipcpreviewworker.cpp \
     ipcserver.cpp \
@@ -31,15 +36,18 @@ SOURCES += \
       clicklabel.cpp \
     previewgenerator.cpp \
     previewgeneratormapfunctor.cpp \
+    previewgeneratorodt.cpp \
     previewgeneratorpdf.cpp \
     previewgeneratorplaintext.cpp \
     previewresult.cpp \
+    previewresultodt.cpp \
     previewresultpdf.cpp \
     previewresultplaintext.cpp \
     renderconfig.cpp \
     rendertarget.cpp
 
 HEADERS += \
+    aboutdialog.h \
     ipc.h \
     ipcpreviewclient.h \
     ipcpreviewworker.h \
@@ -48,9 +56,11 @@ HEADERS += \
     clicklabel.h \
     previewgenerator.h \
     previewgeneratormapfunctor.h \
+    previewgeneratorodt.h \
     previewgeneratorpdf.h \
     previewgeneratorplaintext.h \
     previewresult.h \
+    previewresultodt.h \
     previewresultpdf.h \
     previewresultplaintext.h \
     renderconfig.h \
@@ -60,6 +70,7 @@ FORMS += \
         mainwindow.ui
 
 INCLUDEPATH += /usr/include/poppler/qt5/
+INCLUDEPATH += /usr/include/quazip5
 
 QT += widgets sql
 
@@ -69,6 +80,12 @@ else:unix: LIBS += -L$$OUT_PWD/../shared/ -lshared
 
 LIBS += -luchardet -lpoppler-qt5 -lquazip5
 
+packagesExist(quazip1-qt5) {
+	PKGCONFIG += quazip1-qt5
+	CONFIG += link_pkgconfig
+	LIBS -= -lquazip5
+}
+
 INCLUDEPATH += $$PWD/../shared
 DEPENDPATH += $$PWD/../shared
 

gui/main.cpp

@@ -12,6 +12,8 @@
 #include "previewresultpdf.h"
 #include "../shared/common.h"
 #include "../shared/sandboxedprocessor.h"
+#include "../shared/dbmigrator.h"
+#include "../shared/logger.h"
 #include "../submodules/exile.h/exile.h"
 #include "ipcserver.h"
 
@@ -114,7 +116,7 @@ int main(int argc, char *argv[])
 
 			QString file = args.at(2);
 			SandboxedProcessor processor(file);
-			return processor.process();
+			return static_cast<int>(processor.process());
 		}
 	}
 	QString ipcSocketPath = Common::ipcSocketPath();
@@ -153,6 +155,63 @@ int main(int argc, char *argv[])
 	try
 	{
 		Common::ensureConfigured();
+		DatabaseFactory factory{Common::databasePath()};
+		DBMigrator migrator{factory};
+
+		if(migrator.migrationNeeded())
+		{
+			auto answer = QMessageBox::question(nullptr, "Proceed with upgrade?",
+												"A database upgrade is required. This might take a few minutes. Say "
+												"'yes' to start upgrade, 'no' to exit.");
+
+			if(answer == QMessageBox::No)
+			{
+				a.quit();
+				return 0;
+			}
+
+			QFile out;
+			out.open(stderr, QIODevice::WriteOnly);
+			Logger migrationLogger{&out};
+			migrationLogger << "Database is being upgraded, please be patient..." << Qt::endl;
+			QThread migratorThread;
+			migrator.moveToThread(&migratorThread);
+			migratorThread.start();
+			QProgressDialog progressDialog;
+
+			QObject::connect(&migrator, &DBMigrator::migrationDone,
+							 [&migrationLogger](uint32_t migration)
+							 { migrationLogger << "Progress: Successfully migrated to: " << migration << Qt::endl; });
+			QObject::connect(&migrator, &DBMigrator::done, &progressDialog, &QProgressDialog::reset);
+			QObject::connect(&migrator, &DBMigrator::error,
+							 [&](QString error)
+							 {
+								 QMetaObject::invokeMethod(qApp,
+														   [error]
+
+														   {
+															   Logger::error() << error << Qt::endl;
+															   QMessageBox::critical(nullptr, "Error during upgrade",
+																					 error);
+															   qApp->quit();
+														   }
+
+								 );
+							 });
+			QTimer::singleShot(0, &migrator, &DBMigrator::start);
+
+			progressDialog.setWindowTitle("Upgrading database");
+			progressDialog.setLabelText("Upgrading database - this might take several minutes, please wait");
+			progressDialog.setWindowModality(Qt::ApplicationModal);
+			progressDialog.setMinimum(0);
+			progressDialog.setMaximum(0);
+			progressDialog.setValue(0);
+			progressDialog.setCancelButton(nullptr);
+			progressDialog.exec();
+
+			migrationLogger << "Database has been successfully upgraded" << Qt::endl;
+			migratorThread.quit();
+		}
 	}
 	catch(LooqsGeneralException &e)
 	{

gui/mainwindow.cpp

@@ -23,6 +23,7 @@
 #include "../shared/common.h"
 #include "ipcpreviewclient.h"
 #include "previewgenerator.h"
+#include "aboutdialog.h"
 
 MainWindow::MainWindow(QWidget *parent, QString socketPath)
 	: QMainWindow(parent), ui(new Ui::MainWindow), progressDialog(this)
@@ -32,27 +33,6 @@ MainWindow::MainWindow(QWidget *parent, QString socketPath)
 	setWindowTitle(QCoreApplication::applicationName());
 	this->ipcPreviewClient.moveToThread(&this->ipcClientThread);
 	this->ipcPreviewClient.setSocketPath(socketPath);
-
-	connect(&ipcPreviewClient, &IPCPreviewClient::previewReceived, this, &MainWindow::previewReceived,
-			Qt::QueuedConnection);
-	connect(&ipcPreviewClient, &IPCPreviewClient::finished, this,
-			[&]
-			{
-				this->ui->previewProcessBar->setValue(this->ui->previewProcessBar->maximum());
-				this->ui->spinPreviewPage->setEnabled(true);
-			});
-	connect(&ipcPreviewClient, &IPCPreviewClient::error, this,
-			[this](QString msg)
-			{
-				qCritical() << msg << Qt::endl;
-				QMessageBox::critical(this, "IPC error", msg);
-			});
-
-	connect(this, &MainWindow::startIpcPreviews, &ipcPreviewClient, &IPCPreviewClient::startGeneration,
-			Qt::QueuedConnection);
-	connect(this, &MainWindow::stopIpcPreviews, &ipcPreviewClient, &IPCPreviewClient::stopGeneration,
-			Qt::QueuedConnection);
-	this->ipcClientThread.start();
 	QSettings settings;
 
 	this->dbFactory = new DatabaseFactory(Common::databasePath());
@@ -82,6 +62,15 @@ MainWindow::MainWindow(QWidget *parent, QString socketPath)
 
 	ui->spinPreviewPage->setValue(1);
 	ui->spinPreviewPage->setMinimum(1);
+
+	ui->btnOpenFailed->setVisible(false);
+	ui->comboPreviewFiles->setVisible(false);
+
+	auto policy = ui->btnOpenFailed->sizePolicy();
+	policy.setRetainSizeWhenHidden(true);
+	ui->btnOpenFailed->setSizePolicy(policy);
+
+	this->ipcClientThread.start();
 }
 
 void MainWindow::addPathToIndex()
@@ -172,29 +161,19 @@ void MainWindow::connectSignals()
 					}
 				}
 			});
-	connect(
-		ui->menuAboutAction, &QAction::triggered, this,
-		[this](bool checked)
-		{
-			QString html = "<h2>looqs</h2>";
-			html += "Full-text search with previews for your files<br><br>";
-			html += "Copyright (c) 2018-2022: Albert Schwarzkopf<br><br>";
-			html += QString("Version: %1<br><br>").arg(Common::versionText());
-			html += "Contact: looqs at quitesimple dot org<br><br>";
-			html += "Website: <a href=\"https://quitesimple.org\">https://quitesimple.org</a><br><br>";
-			html +=
-				"Source code: <a "
-				"href=\"https://github.com/quitesimpleorg/looqs\">https://github.com/quitesimpleorg/looqs</a><br><br>";
-			html += "License: GPLv3<br><br><br>";
-			html += "looqs is open source and free of charge in the hope it will be useful. The author(s) do not "
-					"give any warranty. In the unlikely event of any damage, the author(s) cannot be held responsible. "
-					"You are using looqs at your own risk";
+	connect(ui->menuAboutAction, &QAction::triggered, this,
+			[this](bool checked)
+			{
+				AboutDialog aboutDialog(this);
 
-			QMessageBox::about(this, "About looqs", html);
-		});
+				aboutDialog.exec();
+			});
 	connect(ui->menuAboutQtAction, &QAction::triggered, this,
 			[this](bool checked) { QMessageBox::aboutQt(this, "About Qt"); });
 	connect(ui->menuSyncIndexAction, &QAction::triggered, this, &MainWindow::startIndexSync);
+	connect(ui->menuOpenUserManualAction, &QAction::triggered, this,
+			[this]() { QDesktopServices::openUrl(Common::userManualUrl()); });
+
 	connect(indexSyncer, &IndexSyncer::finished, this,
 			[&](unsigned int totalUpdated, unsigned int totalDeleted, unsigned int totalErrored)
 			{
@@ -210,6 +189,55 @@ void MainWindow::connectSignals()
 	connect(this, &MainWindow::beginIndexSync, indexSyncer, &IndexSyncer::sync);
 	connect(&this->progressDialog, &QProgressDialog::canceled, indexSyncer, &IndexSyncer::cancel);
 	connect(ui->btnSaveSettings, &QPushButton::clicked, this, &MainWindow::saveSettings);
+	connect(ui->btnOpenFailed, &QPushButton::clicked, this, &MainWindow::exportFailedPaths);
+	connect(
+		ui->comboPreviewFiles, qOverload<int>(&QComboBox::currentIndexChanged), this, [&]() { makePreviews(1); },
+		Qt::QueuedConnection);
+	connect(&ipcPreviewClient, &IPCPreviewClient::previewReceived, this, &MainWindow::previewReceived,
+			Qt::QueuedConnection);
+	connect(&ipcPreviewClient, &IPCPreviewClient::finished, this,
+			[&]
+			{
+				this->ui->previewProcessBar->setValue(this->ui->previewProcessBar->maximum());
+				this->ui->spinPreviewPage->setEnabled(true);
+				this->ui->comboPreviewFiles->setEnabled(true);
+			});
+	connect(&ipcPreviewClient, &IPCPreviewClient::error, this,
+			[this](QString msg)
+			{
+				qCritical() << msg << Qt::endl;
+				QMessageBox::critical(this, "IPC error", msg);
+			});
+
+	connect(this, &MainWindow::startIpcPreviews, &ipcPreviewClient, &IPCPreviewClient::startGeneration,
+			Qt::QueuedConnection);
+	connect(this, &MainWindow::stopIpcPreviews, &ipcPreviewClient, &IPCPreviewClient::stopGeneration,
+			Qt::QueuedConnection);
+}
+
+void MainWindow::exportFailedPaths()
+{
+
+	QString filename =
+		QString("/tmp/looqs_indexresult_failed_%1").arg(QDateTime::currentDateTime().toString("yyyy-MM-dd_hhmmss"));
+	QFile outFile(filename);
+	if(!outFile.open(QIODevice::WriteOnly | QIODevice::Text))
+	{
+		QMessageBox::critical(this, "Failed to write log file", "An error occured while trying to create log file");
+		return;
+	}
+
+	QTextStream stream(&outFile);
+
+	IndexResult result = this->indexer->getResult();
+
+	stream << "Failed to index the following paths:\n";
+	for(FileScanResult &fsr : result.failedResults())
+	{
+		stream << fsr.first << " " << SaveFileResultToString(fsr.second) << '\n';
+	}
+
+	QDesktopServices::openUrl(filename);
 }
 
 void MainWindow::startIndexSync()
@@ -254,6 +282,7 @@ void MainWindow::startIndexing()
 	ui->txtSearch->setEnabled(false);
 	ui->previewProcessBar->setValue(0);
 	ui->previewProcessBar->setVisible(true);
+	ui->btnOpenFailed->setVisible(false);
 
 	QVector<QString> paths;
 	QStringList pathSettingsValue;
@@ -289,6 +318,10 @@ void MainWindow::finishIndexing()
 	ui->settingsTab->setEnabled(true);
 	ui->txtPathScanAdd->setEnabled(true);
 	ui->txtSearch->setEnabled(true);
+	if(result.erroredPaths > 0)
+	{
+		ui->btnOpenFailed->setVisible(true);
+	}
 }
 
 void MainWindow::comboScaleChanged(int i)
@@ -406,19 +439,46 @@ void MainWindow::previewReceived(QSharedPointer<PreviewResult> preview, unsigned
 		QString docPath = preview->getDocumentPath();
 		auto previewPage = preview->getPage();
 
+		ClickLabel *headerLabel = new ClickLabel();
+		headerLabel->setText(QString("Path: ") + preview->getDocumentPath());
+
 		ClickLabel *label = dynamic_cast<ClickLabel *>(preview->createPreviewWidget());
-		ui->scrollAreaWidgetContents->layout()->addWidget(label);
-		connect(label, &ClickLabel::leftClick, [this, docPath, previewPage]() { openDocument(docPath, previewPage); });
-		connect(label, &ClickLabel::rightClick,
-				[this, docPath, previewPage]()
-				{
-					QFileInfo fileInfo{docPath};
-					QMenu menu("labeRightClick", this);
-					createSearchResutlMenu(menu, fileInfo);
-					menu.addAction("Copy page number", [previewPage]
-								   { QGuiApplication::clipboard()->setText(QString::number(previewPage)); });
-					menu.exec(QCursor::pos());
-				});
+
+		QVBoxLayout *previewLayout = new QVBoxLayout();
+
+		QFont font = label->font();
+		font.setPointSize(QApplication::font().pointSize() * currentSelectedScale() / 100);
+		label->setFont(font);
+		headerLabel->setFont(font);
+
+		auto leftClickHandler = [this, docPath, previewPage]() { openDocument(docPath, previewPage); };
+		auto rightClickhandler = [this, docPath, previewPage]()
+		{
+			QFileInfo fileInfo{docPath};
+			QMenu menu("labeRightClick", this);
+			createSearchResutlMenu(menu, fileInfo);
+			menu.addAction("Copy page number",
+						   [previewPage] { QGuiApplication::clipboard()->setText(QString::number(previewPage)); });
+			menu.exec(QCursor::pos());
+		};
+
+		connect(label, &ClickLabel::leftClick, leftClickHandler);
+		connect(label, &ClickLabel::rightClick, rightClickhandler);
+
+		connect(headerLabel, &ClickLabel::rightClick, rightClickhandler);
+
+		previewLayout->addWidget(label);
+
+		previewLayout->addWidget(headerLabel);
+
+		previewLayout->setMargin(0);
+		previewLayout->insertStretch(0, 1);
+		previewLayout->insertStretch(-1, 1);
+		QWidget *previewWidget = new QWidget();
+
+		previewWidget->setLayout(previewLayout);
+
+		ui->scrollAreaWidgetContents->layout()->addWidget(previewWidget);
 	}
 }
 
@@ -443,21 +503,70 @@ void MainWindow::lineEditReturnPressed()
 		{
 			SqliteSearch searcher(db);
 			QVector<SearchResult> results;
-			this->contentSearchQuery = LooqsQuery::build(q, TokenType::FILTER_CONTENT_CONTAINS, true);
+			LooqsQuery tmpQuery = LooqsQuery::build(q, TokenType::WORD, true);
 
-			/* We can have a path search in contentsearch too (if given explicitly), so no need to do it twice.
-				Make sure path results are listed first. */
-			bool addContentSearch = this->contentSearchQuery.hasContentSearch();
-			bool addPathSearch = !this->contentSearchQuery.hasPathSearch() || !addContentSearch;
+			LooqsQuery pathsQuery = tmpQuery;
+
+			this->contentSearchQuery = tmpQuery;
+
+			bool addContentSearch = false;
+			bool addPathSearch = false;
+
+			auto createFinalTokens = [&tmpQuery](TokenType replacementToken)
+			{
+				QVector<Token> tokens = tmpQuery.getTokens();
+				for(Token &token : tokens)
+				{
+					if(token.type == TokenType::WORD)
+					{
+						token.type = replacementToken;
+					}
+				}
+				return tokens;
+			};
+
+			/* An explicit search, no lone words. We just pass it on */
+			if(!(tmpQuery.getTokensMask() & TokenType::WORD))
+			{
+				if(tmpQuery.hasContentSearch())
+				{
+					addContentSearch = true;
+				}
+				else
+				{
+					addPathSearch = true;
+				}
+			}
+			/* A path search, and lone words, e. g. p:("docs") invoice */
+			else if(tmpQuery.hasPathSearch() && (tmpQuery.getTokensMask() & TokenType::WORD))
+			{
+				this->contentSearchQuery = tmpQuery;
+				this->contentSearchQuery.setTokens(createFinalTokens(TokenType::FILTER_CONTENT_CONTAINS));
+				addContentSearch = true;
+				addPathSearch = false;
+			}
+			/* A content search and lone words, e. g. c:("to be or not") ebooks */
+			else if(tmpQuery.hasContentSearch() && (tmpQuery.getTokensMask() & TokenType::WORD))
+			{
+				this->contentSearchQuery = LooqsQuery::build(q, TokenType::FILTER_PATH_CONTAINS, false);
+				addContentSearch = true;
+				addPathSearch = false;
+			}
+			/* "Simply lone words, so search both" */
+			else if(!tmpQuery.hasPathSearch() && !tmpQuery.hasContentSearch())
+			{
+				this->contentSearchQuery.setTokens(createFinalTokens(TokenType::FILTER_CONTENT_CONTAINS));
+				pathsQuery = LooqsQuery::build(q, TokenType::FILTER_PATH_CONTAINS, false);
+				addContentSearch = true;
+				addPathSearch = true;
+			}
 			if(addPathSearch)
 			{
-				LooqsQuery filesQuery = LooqsQuery::build(q, TokenType::FILTER_PATH_CONTAINS, false);
-				if(filesQuery.getLimit() == -1)
+				if(pathsQuery.getLimit() == -1)
 				{
-					filesQuery.setLimit(1000);
+					pathsQuery.setLimit(1000);
 				}
-
-				results.append(searcher.search(filesQuery));
+				results.append(searcher.search(pathsQuery));
 			}
 			if(addContentSearch)
 			{
@@ -465,9 +574,12 @@ void MainWindow::lineEditReturnPressed()
 				{
 					this->contentSearchQuery.setLimit(1000);
 				}
-
 				results.append(searcher.search(this->contentSearchQuery));
 			}
+			else
+			{
+				this->contentSearchQuery.setTokens({});
+			}
 			return results;
 		});
 	searchWatcher.setFuture(searchFuture);
@@ -477,6 +589,9 @@ void MainWindow::handleSearchResults(const QVector<SearchResult> &results)
 {
 	this->previewableSearchResults.clear();
 	ui->treeResultsList->clear();
+	ui->comboPreviewFiles->clear();
+	ui->comboPreviewFiles->addItem("All previews");
+	ui->comboPreviewFiles->setVisible(true);
 
 	bool hasDeleted = false;
 	for(const SearchResult &result : results)
@@ -505,6 +620,7 @@ void MainWindow::handleSearchResults(const QVector<SearchResult> &results)
 				if(PreviewGenerator::get(pathInfo) != nullptr)
 				{
 					this->previewableSearchResults.append(result);
+					ui->comboPreviewFiles->addItem(result.fileData.absPath);
 				}
 			}
 		}
@@ -533,6 +649,13 @@ void MainWindow::handleSearchResults(const QVector<SearchResult> &results)
 	ui->lblSearchResults->setText(statusText);
 }
 
+int MainWindow::currentSelectedScale()
+{
+	QString scaleText = ui->comboScale->currentText();
+	scaleText.chop(1);
+	return scaleText.toInt();
+}
+
 void MainWindow::makePreviews(int page)
 {
 	if(this->previewableSearchResults.empty())
@@ -544,8 +667,6 @@ void MainWindow::makePreviews(int page)
 	ui->scrollAreaWidgetContents->setLayout(new QHBoxLayout());
 	ui->previewProcessBar->setMaximum(this->previewableSearchResults.size());
 	processedPdfPreviews = 0;
-	QString scaleText = ui->comboScale->currentText();
-	scaleText.chop(1);
 
 	QVector<QString> wordsToHighlight;
 	QRegularExpression extractor(R"#("([^"]*)"|((\p{L}|\p{N})+))#");
@@ -574,14 +695,22 @@ void MainWindow::makePreviews(int page)
 		begin = 0;
 	}
 
+	int currentScale = currentSelectedScale();
 	RenderConfig renderConfig;
-	renderConfig.scaleX = QGuiApplication::primaryScreen()->physicalDotsPerInchX() * (scaleText.toInt() / 100.);
-	renderConfig.scaleY = QGuiApplication::primaryScreen()->physicalDotsPerInchY() * (scaleText.toInt() / 100.);
+	renderConfig.scaleX = QGuiApplication::primaryScreen()->physicalDotsPerInchX() * (currentScale / 100.);
+	renderConfig.scaleY = QGuiApplication::primaryScreen()->physicalDotsPerInchY() * (currentScale / 100.);
 	renderConfig.wordsToHighlight = wordsToHighlight;
 
 	QVector<RenderTarget> targets;
 	for(SearchResult &sr : this->previewableSearchResults)
 	{
+		if(ui->comboPreviewFiles->currentIndex() != 0)
+		{
+			if(sr.fileData.absPath != ui->comboPreviewFiles->currentText())
+			{
+				continue;
+			}
+		}
 		RenderTarget renderTarget;
 		renderTarget.path = sr.fileData.absPath;
 
@@ -602,6 +731,7 @@ void MainWindow::makePreviews(int page)
 	ui->previewProcessBar->setVisible(this->previewableSearchResults.size() > 0);
 	++this->currentPreviewGeneration;
 	this->ui->spinPreviewPage->setEnabled(false);
+	this->ui->comboPreviewFiles->setEnabled(false);
 	emit startIpcPreviews(renderConfig, targets);
 }
 
@@ -617,6 +747,20 @@ void MainWindow::createSearchResutlMenu(QMenu &menu, const QFileInfo &fileInfo)
 	menu.addAction("Copy full path to clipboard",
 				   [&fileInfo] { QGuiApplication::clipboard()->setText(fileInfo.absoluteFilePath()); });
 	menu.addAction("Open containing folder", [this, &fileInfo] { this->openFile(fileInfo.absolutePath()); });
+
+	auto result =
+		std::find_if(this->previewableSearchResults.begin(), this->previewableSearchResults.end(),
+					 [this, &fileInfo](SearchResult &a) { return fileInfo.absoluteFilePath() == a.fileData.absPath; });
+
+	if(result != this->previewableSearchResults.end())
+	{
+		menu.addAction("Show previews for this file",
+					   [this, &fileInfo]
+					   {
+						   ui->tabWidget->setCurrentIndex(1);
+						   this->ui->comboPreviewFiles->setCurrentText(fileInfo.absoluteFilePath());
+					   });
+	}
 }
 
 void MainWindow::openDocument(QString path, int num)

gui/mainwindow.h

@@ -62,6 +62,7 @@ class MainWindow : public QMainWindow
 	void openFile(QString path);
 	unsigned int currentPreviewGeneration = 1;
 	void initSettingsTabs();
+	int currentSelectedScale();
   private slots:
 	void lineEditReturnPressed();
 	void treeSearchItemActivated(QTreeWidgetItem *item, int i);
@@ -75,6 +76,7 @@ class MainWindow : public QMainWindow
 	void addPathToIndex();
 	void startIndexSync();
 	void saveSettings();
+	void exportFailedPaths();
 
   signals:
 	void startIpcPreviews(RenderConfig config, const QVector<RenderTarget> &targets);

gui/mainwindow.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>1280</width>
-    <height>736</height>
+    <height>855</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -27,7 +27,7 @@
        <enum>QTabWidget::South</enum>
       </property>
       <property name="currentIndex">
-       <number>3</number>
+       <number>1</number>
       </property>
       <widget class="QWidget" name="resultsTab">
        <attribute name="title">
@@ -82,7 +82,7 @@
              <x>0</x>
              <y>0</y>
              <width>1244</width>
-             <height>446</height>
+             <height>565</height>
             </rect>
            </property>
            <layout class="QHBoxLayout" name="horizontalLayout"/>
@@ -162,6 +162,16 @@
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QComboBox" name="comboPreviewFiles">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+           </widget>
+          </item>
           <item>
            <spacer name="horizontalSpacer">
             <property name="orientation">
@@ -184,6 +194,16 @@
         <string>Index</string>
        </attribute>
        <layout class="QGridLayout" name="gridLayout">
+        <item row="6" column="0">
+         <widget class="QLineEdit" name="txtIgnorePatterns"/>
+        </item>
+        <item row="11" column="0">
+         <widget class="QPushButton" name="btnStartIndexing">
+          <property name="text">
+           <string>Start indexing</string>
+          </property>
+         </widget>
+        </item>
         <item row="1" column="0">
          <widget class="QGroupBox" name="groupBoxPaths">
           <property name="title">
@@ -243,6 +263,12 @@
             <layout class="QHBoxLayout" name="horizontalLayout_7">
              <item>
               <widget class="QLabel" name="lblPathsFound">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string>Paths found:</string>
                </property>
@@ -250,17 +276,42 @@
              </item>
              <item>
               <widget class="QLabel" name="lblPathsFoundValue">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string/>
                </property>
               </widget>
              </item>
+             <item>
+              <spacer name="horizontalSpacer_5">
+               <property name="orientation">
+                <enum>Qt::Horizontal</enum>
+               </property>
+               <property name="sizeHint" stdset="0">
+                <size>
+                 <width>40</width>
+                 <height>20</height>
+                </size>
+               </property>
+              </spacer>
+             </item>
             </layout>
            </item>
            <item>
             <layout class="QHBoxLayout" name="horizontalLayout_4">
              <item>
               <widget class="QLabel" name="lblAdded">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="font">
                 <font>
                  <weight>50</weight>
@@ -274,17 +325,42 @@
              </item>
              <item>
               <widget class="QLabel" name="lblAddedValue">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string/>
                </property>
               </widget>
              </item>
+             <item>
+              <spacer name="horizontalSpacer_4">
+               <property name="orientation">
+                <enum>Qt::Horizontal</enum>
+               </property>
+               <property name="sizeHint" stdset="0">
+                <size>
+                 <width>40</width>
+                 <height>20</height>
+                </size>
+               </property>
+              </spacer>
+             </item>
             </layout>
            </item>
            <item>
             <layout class="QHBoxLayout" name="horizontalLayout_5">
              <item>
               <widget class="QLabel" name="lblSkipped">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="font">
                 <font>
                  <weight>50</weight>
@@ -298,17 +374,42 @@
              </item>
              <item>
               <widget class="QLabel" name="lblSkippedValue">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string/>
                </property>
               </widget>
              </item>
+             <item>
+              <spacer name="horizontalSpacer_3">
+               <property name="orientation">
+                <enum>Qt::Horizontal</enum>
+               </property>
+               <property name="sizeHint" stdset="0">
+                <size>
+                 <width>40</width>
+                 <height>20</height>
+                </size>
+               </property>
+              </spacer>
+             </item>
             </layout>
            </item>
            <item>
             <layout class="QHBoxLayout" name="horizontalLayout_6">
              <item>
               <widget class="QLabel" name="lblFailed">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="font">
                 <font>
                  <weight>50</weight>
@@ -322,26 +423,35 @@
              </item>
              <item>
               <widget class="QLabel" name="lblFailedValue">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string/>
                </property>
               </widget>
              </item>
+             <item>
+              <widget class="QPushButton" name="btnOpenFailed">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
+               <property name="text">
+                <string>Open log of failed paths</string>
+               </property>
+              </widget>
+             </item>
             </layout>
            </item>
           </layout>
          </widget>
         </item>
-        <item row="6" column="0">
-         <widget class="QLineEdit" name="txtIgnorePatterns"/>
-        </item>
-        <item row="10" column="0">
-         <widget class="QPushButton" name="btnStartIndexing">
-          <property name="text">
-           <string>Start indexing</string>
-          </property>
-         </widget>
-        </item>
        </layout>
       </widget>
       <widget class="QWidget" name="settingsTab">
@@ -516,6 +626,7 @@
      <string>looqs</string>
     </property>
     <addaction name="menuSyncIndexAction"/>
+    <addaction name="menuOpenUserManualAction"/>
     <addaction name="menuAboutAction"/>
     <addaction name="menuAboutQtAction"/>
     <addaction name="separator"/>
@@ -537,6 +648,11 @@
     <string>Sync index (remove deleted, update existing files)</string>
    </property>
   </action>
+  <action name="menuOpenUserManualAction">
+   <property name="text">
+    <string>Open user manual</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources/>

gui/previewgenerator.cpp

@@ -2,13 +2,15 @@
 #include "previewgenerator.h"
 #include "previewgeneratorpdf.h"
 #include "previewgeneratorplaintext.h"
+#include "previewgeneratorodt.h"
 
 static PreviewGenerator *plainTextGenerator = new PreviewGeneratorPlainText();
 
 static QMap<QString, PreviewGenerator *> generators{
 	{"pdf", new PreviewGeneratorPdf()}, {"txt", plainTextGenerator},  {"md", plainTextGenerator},
 	{"py", plainTextGenerator},			{"java", plainTextGenerator}, {"js", plainTextGenerator},
-	{"cpp", plainTextGenerator},		{"c", plainTextGenerator},	  {"sql", plainTextGenerator}};
+	{"cpp", plainTextGenerator},		{"c", plainTextGenerator},	  {"sql", plainTextGenerator},
+	{"odt", new PreviewGeneratorOdt()}};
 
 PreviewGenerator *PreviewGenerator::get(QFileInfo &info)
 {

gui/previewgeneratorodt.cpp

@@ -0,0 +1,32 @@
+#include <quazip.h>
+#include <quazipfile.h>
+#include "previewgeneratorplaintext.h"
+#include "previewgeneratorodt.h"
+#include "previewresultodt.h"
+#include "../shared/tagstripperprocessor.h"
+
+QSharedPointer<PreviewResult> PreviewGeneratorOdt::generate(RenderConfig config, QString documentPath,
+															unsigned int page)
+{
+	PreviewResultOdt *result = new PreviewResultOdt(documentPath, page);
+
+	QFileInfo info{documentPath};
+
+	QuaZipFile zipFile(documentPath);
+	zipFile.setFileName("content.xml");
+	if(!zipFile.open(QIODevice::ReadOnly))
+	{
+		return QSharedPointer<PreviewResult>(result);
+	}
+	QByteArray entireContent = zipFile.readAll();
+	if(entireContent.isEmpty())
+	{
+		throw LooqsGeneralException("Error while reading content.xml of " + documentPath);
+	}
+	TagStripperProcessor tsp;
+	QString content = tsp.process(entireContent).first().content;
+
+	PreviewGeneratorPlainText plainTextGenerator;
+	result->setText(plainTextGenerator.generatePreviewText(content, config, info.fileName()));
+	return QSharedPointer<PreviewResult>(result);
+}

gui/previewgeneratorodt.h

@@ -0,0 +1,12 @@
+#ifndef PREVIEWGENERATORODT_H
+#define PREVIEWGENERATORODT_H
+
+#include "previewgenerator.h"
+class PreviewGeneratorOdt : public PreviewGenerator
+{
+  public:
+	using PreviewGenerator::PreviewGenerator;
+
+	QSharedPointer<PreviewResult> generate(RenderConfig config, QString documentPath, unsigned int page);
+};
+#endif // PREVIEWGENERATORODT_H

gui/previewgeneratorplaintext.cpp

@@ -3,24 +3,15 @@
 #include "previewgeneratorplaintext.h"
 #include "previewresultplaintext.h"
 
-QSharedPointer<PreviewResult> PreviewGeneratorPlainText::generate(RenderConfig config, QString documentPath,
-																  unsigned int page)
+QString PreviewGeneratorPlainText::generatePreviewText(QString content, RenderConfig config, QString fileName)
 {
-	PreviewResultPlainText *result = new PreviewResultPlainText(documentPath, page);
-	QFile file(documentPath);
-	if(!file.open(QFile::ReadOnly | QFile::Text))
-	{
-		return QSharedPointer<PreviewResultPlainText>(result);
-	}
-	QTextStream in(&file);
-
 	QString resulText = "";
-	QString content = in.readAll();
+
 	QMap<int, QString> snippet;
 
-	int coveredRange = 0;
+	int coveredRange = -1;
+	int lastWordPos = -1;
 
-	int lastWordPos = 0;
 	QHash<QString, int> countmap;
 
 	const unsigned int maxSnippets = 7;
@@ -71,9 +62,7 @@ QSharedPointer<PreviewResult> PreviewGeneratorPlainText::generate(RenderConfig c
 		resulText.replace(word, "<span style=\"background-color: yellow;\">" + word + "</span>", Qt::CaseInsensitive);
 	}
 
-	QFileInfo info{documentPath};
-
-	QString header = "<b>" + info.fileName() + "</b> ";
+	QString header = "<b>" + fileName + "</b> ";
 	for(QString &word : config.wordsToHighlight)
 	{
 		header += word + ": " + QString::number(countmap[word]) + " ";
@@ -85,6 +74,22 @@ QSharedPointer<PreviewResult> PreviewGeneratorPlainText::generate(RenderConfig c
 
 	header += "<hr>";
 
-	result->setText(header + resulText.replace("\n", "<br>").mid(0, 1000));
+	return header + resulText.replace("\n", "<br>").mid(0, 1000);
+}
+
+QSharedPointer<PreviewResult> PreviewGeneratorPlainText::generate(RenderConfig config, QString documentPath,
+																  unsigned int page)
+{
+	PreviewResultPlainText *result = new PreviewResultPlainText(documentPath, page);
+	QFile file(documentPath);
+	if(!file.open(QFile::ReadOnly | QFile::Text))
+	{
+		return QSharedPointer<PreviewResultPlainText>(result);
+	}
+	QTextStream in(&file);
+
+	QString content = in.readAll();
+	QFileInfo info{documentPath};
+	result->setText(generatePreviewText(content, config, info.fileName()));
 	return QSharedPointer<PreviewResultPlainText>(result);
 }

gui/previewgeneratorplaintext.h

@@ -6,6 +6,7 @@ class PreviewGeneratorPlainText : public PreviewGenerator
 {
   public:
 	using PreviewGenerator::PreviewGenerator;
+	QString generatePreviewText(QString content, RenderConfig config, QString fileName);
 	QSharedPointer<PreviewResult> generate(RenderConfig config, QString documentPath, unsigned int page);
 };
 

gui/previewresultodt.cpp

@@ -0,0 +1 @@
+#include "previewresultodt.h"

gui/previewresultodt.h

@@ -0,0 +1,10 @@
+#ifndef PREVIEWRESULTODT_H
+#define PREVIEWRESULTODT_H
+#include "previewresultplaintext.h"
+
+class PreviewResultOdt : public PreviewResultPlainText
+{
+	using PreviewResultPlainText::PreviewResultPlainText;
+};
+
+#endif // PREVIEWRESULTODT_H

shared/common.cpp

@@ -17,50 +17,34 @@
 inline void initResources()
 {
 	Q_INIT_RESOURCE(migrations);
+	Q_INIT_RESOURCE(plaintexts);
 }
 
 bool Common::initSqliteDatabase(QString path)
 {
-	QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
-	db.setDatabaseName(path);
-	if(!db.open())
+	try
 	{
-		qDebug() << "failed to open database: " << path;
+		initResources();
+		DatabaseFactory factory(path);
+		DBMigrator migrator{factory};
+		migrator.performMigrations();
+	}
+	catch(std::exception &ex)
+	{
+		Logger::error() << "Failed to init dabase: " << ex.what();
 		return false;
 	}
-	initResources();
-	DBMigrator migrator{db};
-	migrator.performMigrations();
-	db.close();
 	return true;
 }
 
-QString Common::findInPath(QString needle)
-{
-	QStringList results;
-	QString pathVar = QProcessEnvironment::systemEnvironment().value("PATH", "/usr/bin/:/bin/:");
-	QStringList paths = pathVar.split(":");
-	for(const QString &path : paths)
-	{
-		// TODO: can pass ../ but so be it for now.
-
-		QFileInfo info{path + "/" + needle};
-		if(info.exists())
-		{
-			return info.absoluteFilePath();
-		}
-	}
-	return "";
-}
-
 void Common::setPdfViewer()
 {
 	QString value;
 
 	/* TODO: well, we should query this probably from xdg*/
-	QString okularPath = findInPath("okular");
-	QString evincePath = findInPath("evince");
-	QString qpdfviewPath = findInPath("qpdfview");
+	QString okularPath = QStandardPaths::findExecutable("okular");
+	QString evincePath = QStandardPaths::findExecutable("evince");
+	QString qpdfviewPath = QStandardPaths::findExecutable("qpdfview");
 
 	if(okularPath != "")
 	{
@@ -68,16 +52,16 @@ void Common::setPdfViewer()
 	}
 	else if(evincePath != "")
 	{
-		value = evincePath + "-i %p %f";
+		value = evincePath + " -i %p %f";
 	}
 	else if(qpdfviewPath != "")
 	{
-		value = qpdfviewPath + "%f#%p";
+		value = qpdfviewPath + " %f#%p";
 	}
 
-	QSettings settings;
 	if(value != "")
 	{
+		QSettings settings;
 		settings.setValue(SETTINGS_KEY_PDFVIEWER, value);
 	}
 }
@@ -106,21 +90,6 @@ void Common::ensureConfigured()
 		}
 		settings.setValue(SETTINGS_KEY_DBPATH, dbpath);
 	}
-	DatabaseFactory factory{dbpath};
-	auto db = factory.forCurrentThread();
-	DBMigrator migrator{db};
-	if(migrator.migrationNeeded())
-	{
-		QFile out;
-		out.open(stderr, QIODevice::WriteOnly);
-		Logger migrationLogger{&out};
-		migrationLogger << "Database is being upgraded, please be patient..." << Qt::endl;
-		QObject::connect(&migrator, &DBMigrator::migrationDone,
-						 [&migrationLogger](uint32_t migration)
-						 { migrationLogger << "Progress: Successfully migrated to: " << migration << Qt::endl; });
-		migrator.performMigrations();
-		migrationLogger << "Database upgraded successfully" << Qt::endl;
-	}
 	QVariant pdfViewer = settings.value(SETTINGS_KEY_PDFVIEWER);
 	if(!pdfViewer.isValid())
 	{
@@ -233,3 +202,8 @@ QString Common::versionText()
 	QString tag = GIT_TAG;
 	return tag + " (" + commitid + ") built " + __DATE__ + " " + __TIME__;
 }
+
+QString Common::userManualUrl()
+{
+	return QString("https://github.com/quitesimpleorg/looqs/blob/%1/USAGE.md").arg(QString(GIT_COMMIT_ID));
+}

shared/common.h

@@ -16,7 +16,6 @@ void setupAppInfo();
 QString databasePath();
 QString ipcSocketPath();
 void setPdfViewer();
-QString findInPath(QString needle);
 bool initSqliteDatabase(QString path);
 void ensureConfigured();
 QStringList excludedPaths();
@@ -25,5 +24,6 @@ bool isTextFile(QFileInfo fileInfo);
 bool isMountPath(QString path);
 bool noSandboxModeRequested();
 QString versionText();
+QString userManualUrl();
 } // namespace Common
 #endif

shared/dbmigrator.cpp

@@ -6,10 +6,10 @@
 #include "dbmigrator.h"
 #include "looqsgeneralexception.h"
 
-DBMigrator::DBMigrator(QSqlDatabase &db)
+DBMigrator::DBMigrator(DatabaseFactory &factory)
 {
 	Q_INIT_RESOURCE(migrations);
-	this->db = &db;
+	this->dbFactory = &factory;
 }
 
 DBMigrator::~DBMigrator()
@@ -30,7 +30,8 @@ QStringList DBMigrator::getMigrationFilenames()
 
 uint32_t DBMigrator::currentRevision()
 {
-	QSqlQuery dbquery(*db);
+	QSqlDatabase db = dbFactory->forCurrentThread();
+	QSqlQuery dbquery(db);
 	dbquery.exec("PRAGMA user_version;");
 	if(!dbquery.next())
 	{
@@ -48,38 +49,56 @@ bool DBMigrator::migrationNeeded()
 	return currentRev < static_cast<uint32_t>(migrations.size());
 }
 
+void DBMigrator::start()
+{
+	performMigrations();
+}
+
 void DBMigrator::performMigrations()
 {
 	QStringList migrations = getMigrationFilenames();
 	uint32_t currentRev = currentRevision();
 	uint32_t targetRev = (migrations.size());
 
-	for(uint32_t i = currentRev + 1; i <= targetRev; i++)
-	{
-		QString fileName = QString(":/looqs-migrations/%1.sql").arg(i);
-		QFile file{fileName};
-		if(!file.open(QIODevice::ReadOnly))
-		{
-			throw LooqsGeneralException("Migration: Failed to find required revision file");
-		}
-		QTextStream stream(&file);
-		db->transaction();
-		while(!stream.atEnd())
-		{
-			QString sql = stream.readLine();
-			QSqlQuery sqlQuery{*db};
-			if(!sqlQuery.exec(sql))
-			{
+	QSqlDatabase db = dbFactory->forCurrentThread();
 
-				db->rollback();
-				throw LooqsGeneralException("Failed to execute sql statement while initializing database: " +
-											sqlQuery.lastError().text());
+	try
+	{
+		for(uint32_t i = currentRev + 1; i <= targetRev; i++)
+		{
+			QString fileName = QString(":/looqs-migrations/%1.sql").arg(i);
+			QFile file{fileName};
+			if(!file.open(QIODevice::ReadOnly))
+			{
+				throw LooqsGeneralException("Migration: Failed to find required revision file");
 			}
+			QTextStream stream(&file);
+			db.transaction();
+			while(!stream.atEnd())
+			{
+				QString sql = stream.readLine();
+				QSqlQuery sqlQuery{db};
+				if(!sqlQuery.exec(sql))
+				{
+
+					db.rollback();
+					throw LooqsGeneralException("Failed to execute sql statement while initializing database: " +
+												sqlQuery.lastError().text());
+				}
+			}
+			QSqlQuery updateVersion{db};
+			updateVersion.exec(QString("PRAGMA user_version=%1;").arg(i));
+			db.commit();
+
+			QSqlQuery vacuumQuery{db};
+			vacuumQuery.exec("VACUUM;");
+
+			emit migrationDone(i);
 		}
-		QSqlQuery updateVersion{*db};
-		updateVersion.exec(QString("PRAGMA user_version=%1;").arg(i));
-		db->commit();
-		emit migrationDone(i);
+		emit done();
+	}
+	catch(LooqsGeneralException &e)
+	{
+		emit error(e.message);
 	}
-	emit done();
 }

shared/dbmigrator.h

@@ -3,14 +3,15 @@
 #include <QStringList>
 #include <QSqlDatabase>
 #include <QObject>
+#include "databasefactory.h"
 class DBMigrator : public QObject
 {
 	Q_OBJECT
   private:
-	QSqlDatabase *db;
+	DatabaseFactory *dbFactory;
 
   public:
-	DBMigrator(QSqlDatabase &db);
+	DBMigrator(DatabaseFactory &dbFactory);
 	~DBMigrator();
 	uint32_t currentRevision();
 	void performMigrations();
@@ -19,6 +20,9 @@ class DBMigrator : public QObject
   signals:
 	void migrationDone(uint32_t);
 	void done();
+	void error(QString e);
+  public slots:
+	void start();
 };
 
 #endif // DBMIGRATOR_H

shared/dirscanworker.cpp

@@ -19,9 +19,12 @@ void DirScanWorker::run()
 	QString path;
 	/* TODO: if we have e. g. only one path, then only one thread will scan this path.
 		 *
-		 * Thus, we must resubmit to the queue directories so other threads can help
-		the current one (requires a new logic for threads in ParallelDirScanner). Alterantively,
-		start new DirScanWorkers ourselves here... */
+		 * Thus, we must submit new directory paths to the queue so other threads can help
+		the current one.
+
+		It also may not be guaranteed enqueuing new paths is faster than just scanning them,
+		at least not for dirs with a small number of files
+		*/
 	while(queue->dequeue(path))
 	{
 		if(wildcardMatcher.match(path))

shared/filesaver.cpp

@@ -87,6 +87,10 @@ int FileSaver::processFiles(const QVector<QString> paths, std::function<SaveFile
 										  {
 											  Logger::info() << "Saved" << path << Qt::endl;
 										  }
+										  else if(result == OK_WASEMPTY)
+										  {
+											  Logger::info() << "Saved (but content was empty)" << path << Qt::endl;
+										  }
 									  }
 								  }
 							  });
@@ -98,7 +102,12 @@ SaveFileResult FileSaver::saveFile(const QFileInfo &fileInfo)
 	QVector<PageData> pageData;
 	QString canonicalPath = fileInfo.canonicalFilePath();
 
-	int status = -1;
+	int processorReturnCode = -1;
+
+	if(!fileInfo.isReadable())
+	{
+		return NOACCESS;
+	}
 
 	if(!fileInfo.exists())
 	{
@@ -115,44 +124,45 @@ SaveFileResult FileSaver::saveFile(const QFileInfo &fileInfo)
 			}
 		}
 
-		QProcess process;
-		QStringList args;
-		args << "process" << canonicalPath;
-		process.setProcessChannelMode(QProcess::ForwardedErrorChannel);
-		process.start("/proc/self/exe", args);
-		process.waitForStarted();
-		process.waitForFinished();
-
-		/* TODO: This is suboptimal as it eats lots of mem
-		 * but avoids a weird QDataStream/QProcess behaviour
-		 * where it thinks the process has ended when it has not...
-		 *
-		 * Also, there seem to be issues with reads not being blocked, so
-		 * the only reliable way appears to be waiting until the process
-		 * finishes.
-		 */
-		QDataStream in(process.readAllStandardOutput());
-		while(!in.atEnd())
+		if(fileInfo.size() > 0)
 		{
-			PageData pd;
-			in >> pd;
-			pageData.append(pd);
-		}
-		status = process.exitCode();
-		if(status != 0 && status != NOTHING_PROCESSED)
-		{
-			Logger::error() << "FileSaver::saveFile(): Error while processing" << canonicalPath << ":"
-							<< "Exit code " << status << Qt::endl;
+			QProcess process;
+			QStringList args;
+			args << "process" << canonicalPath;
+			process.setProcessChannelMode(QProcess::ForwardedErrorChannel);
+			process.start("/proc/self/exe", args);
+			process.waitForStarted();
+			process.waitForFinished();
 
-			return PROCESSFAIL;
+			/* TODO: This is suboptimal as it eats lots of mem
+			 * but avoids a weird QDataStream/QProcess behaviour
+			 * where it thinks the process has ended when it has not...
+			 *
+			 * Also, there seem to be issues with reads not being blocked, so
+			 * the only reliable way appears to be waiting until the process
+			 * finishes.
+			 */
+			QDataStream in(process.readAllStandardOutput());
+			while(!in.atEnd())
+			{
+				PageData pd;
+				in >> pd;
+				pageData.append(pd);
+			}
+			processorReturnCode = process.exitCode();
+			if(processorReturnCode != OK && processorReturnCode != OK_WASEMPTY)
+			{
+				Logger::error() << "FileSaver::saveFile(): Error while processing" << canonicalPath << ":"
+								<< "Exit code " << processorReturnCode << Qt::endl;
+
+				return static_cast<SaveFileResult>(processorReturnCode);
+			}
 		}
 	}
-
-	// Could happen if a file corrupted for example
-	if(pageData.isEmpty() && status != NOTHING_PROCESSED)
+	SaveFileResult result = this->dbService->saveFile(fileInfo, pageData);
+	if(result == OK && processorReturnCode == OK_WASEMPTY)
 	{
-		Logger::error() << "Could not get any content for " << canonicalPath << Qt::endl;
+		return OK_WASEMPTY;
 	}
-
-	return this->dbService->saveFile(fileInfo, pageData);
+	return result;
 }

shared/indexer.cpp

@@ -120,7 +120,7 @@ void Indexer::dirScanProgress(int current, int total)
 
 void Indexer::processFileScanResult(FileScanResult result)
 {
-	if(result.second == DBFAIL || result.second == PROCESSFAIL || result.second == NOTFOUND)
+	if(isErrorSaveFileResult(result.second))
 	{
 		this->currentIndexResult.results.append(result);
 		if(!keepGoing)
@@ -138,7 +138,8 @@ void Indexer::processFileScanResult(FileScanResult result)
 		}
 	}
 
-	if(result.second == OK)
+	/* TODO: OK_WASEMPTY might need a special list */
+	if(result.second == OK || result.second == OK_WASEMPTY)
 	{
 		++this->currentIndexResult.addedPaths;
 	}

shared/indexer.h

@@ -22,19 +22,30 @@ class IndexResult
 		return addedPaths + skippedPaths + erroredPaths;
 	}
 
-	QVector<QString> failedPaths() const
+	QVector<FileScanResult> failedResults() const
 	{
-		QVector<QString> result;
+		QVector<FileScanResult> result;
 		std::for_each(results.begin(), results.end(),
 					  [&result](FileScanResult res)
 					  {
-						  if(res.second == DBFAIL || res.second == PROCESSFAIL || res.second == NOTFOUND)
+						  if(res.second == DBFAIL || res.second == PROCESSFAIL || res.second == NOTFOUND ||
+							 res.second == NOACCESS)
 						  {
-							  result.append(res.first);
+							  result.append(res);
 						  }
 					  });
 		return result;
 	}
+
+	QVector<QString> failedPaths() const
+	{
+		QVector<QString> result;
+
+		QVector<FileScanResult> results = failedResults();
+
+		std::for_each(results.begin(), results.end(), [&result](FileScanResult res) { result.append(res.first); });
+		return result;
+	}
 };
 
 class Indexer : public QObject

shared/looqsquery.cpp

@@ -320,7 +320,7 @@ LooqsQuery LooqsQuery::build(QString expression, TokenType loneWordsTokenType, b
 	QVector<Token> newTokens;
 
 	TokenType prevType = BOOL_AND;
-	int needsBoolean = FILTER_CONTENT | FILTER_PATH | NEGATION;
+	int needsBoolean = FILTER_CONTENT | FILTER_PATH | NEGATION | WORD;
 	for(Token &t : result.tokens)
 	{
 		if(t.type == BRACKET_OPEN || t.type & needsBoolean)

shared/looqsquery.h

@@ -44,6 +44,13 @@ class LooqsQuery
 	QVector<Token> tokens;
 	QVector<SortCondition> sortConditions;
 	void addToken(Token t);
+	void updateTokensMask()
+	{
+		for(const Token &t : tokens)
+		{
+			this->tokensMask |= t.type;
+		}
+	}
 
   public:
 	const QVector<Token> &getTokens() const;
@@ -65,8 +72,34 @@ class LooqsQuery
 	bool hasPathSearch() const;
 
 	void addSortCondition(SortCondition sc);
+
+	void setTokens(const QVector<Token> &tokens)
+	{
+		this->tokens = tokens;
+		updateTokensMask();
+	}
+
 	static bool checkParanthesis(QString query);
 	static LooqsQuery build(QString query, TokenType loneWordsTokenType, bool mergeLoneWords);
+
+	LooqsQuery()
+	{
+	}
+
+	LooqsQuery(const QVector<Token> &tokens, const QVector<SortCondition> &sortConditions)
+	{
+		this->tokens = tokens;
+		this->sortConditions = sortConditions;
+		updateTokensMask();
+	}
+
+	LooqsQuery(const LooqsQuery &o)
+	{
+		this->tokens = o.tokens;
+		this->sortConditions = o.sortConditions;
+		this->tokensMask = o.tokensMask;
+		this->limit = o.limit;
+	}
 };
 
 #endif // LOOQSQUERY_H

shared/migrations/2.sql

@@ -0,0 +1,14 @@
+ALTER TABLE content ADD ftsid integer;
+CREATE VIRTUAL TABLE fts USING fts5(content, content='');
+DROP TRIGGER contents_ai;
+DROP TRIGGER contents_au;
+DROP TRIGGER contents_ad;
+CREATE TEMP TABLE contentstemp(id INTEGER PRIMARY KEY, content text);
+CREATE TRIGGER contentstemp_ai AFTER INSERT ON contentstemp BEGIN  INSERT INTO fts(content) VALUES (new.content); UPDATE content SET ftsid=last_insert_rowid() WHERE id = new.id; END;
+INSERT INTO contentstemp(id, content) SELECT id, content FROM content;
+DROP TRIGGER contentstemp_ai;
+DROP TABLE contentstemp;
+DROP TABLE content_fts;
+ALTER TABLE content DROP COLUMN content;
+CREATE INDEX content_ftsid ON content (ftsid);
+CREATE TRIGGER content_ad AFTER DELETE ON content BEGIN  INSERT INTO fts(fts, rowid) VALUES('delete', old.ftsid); END;

shared/migrations/migrations.qrc

@@ -1,5 +1,6 @@
 <RCC>
     <qresource prefix="/looqs-migrations">
         <file>1.sql</file>
+        <file>2.sql</file>
     </qresource>
 </RCC>

shared/odtprocessor.cpp

@@ -1,5 +1,5 @@
-#include <quazip5/quazip.h>
-#include <quazip5/quazipfile.h>
+#include <quazip.h>
+#include <quazipfile.h>
 #include "odtprocessor.h"
 #include "tagstripperprocessor.h"
 

shared/paralleldirscanner.cpp

@@ -71,7 +71,35 @@ void ParallelDirScanner::scan()
 	this->targetPathsQueue.clear();
 	this->resultPathsQueue.clear();
 
-	this->targetPathsQueue.enqueue(this->paths);
+	/* First scan without subdirs. This way we collect paths for the threads */
+	WildcardMatcher matcher;
+	matcher.setPatterns(this->ignorePatterns);
+	for(QString &path : this->paths)
+	{
+		QDirIterator iterator(path, QStringList{}, QDir::Dirs | QDir::QDir::Files | QDir::NoDotAndDotDot);
+		while(iterator.hasNext())
+		{
+			QString path = iterator.next();
+			if(matcher.match(path))
+			{
+				continue;
+			}
+			QFileInfo info = iterator.fileInfo();
+			if(!info.isSymLink())
+			{
+				if(info.isDir())
+				{
+					this->targetPathsQueue.enqueue(info.absoluteFilePath());
+				}
+				else
+				{
+					this->resultPathsQueue.enqueue(info.absoluteFilePath());
+					this->processedPaths += 1;
+				}
+			}
+		}
+	}
+	emit this->progress(this->processedPaths, this->processedPaths);
 	int threadsNum = getThreadsNum();
 	if(threadsNum == 0)
 	{

shared/plaintexts.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource>
+		<file>../LICENSE</file>
+        <file>../LICENSE-3RD-PARTY</file>
+    </qresource>
+</RCC>

shared/processor.h

@@ -10,8 +10,6 @@ enum DataSource
 	ARRAY
 };
 
-#define NOTHING_PROCESSED 4
-
 class Processor
 {
   public:

shared/sandboxedprocessor.cpp

@@ -80,7 +80,7 @@ void SandboxedProcessor::printResults(const QVector<PageData> &pageData)
 	fsstdout.close();
 }
 
-int SandboxedProcessor::process()
+SaveFileResult SandboxedProcessor::process()
 {
 	QFileInfo fileInfo(this->filePath);
 	Processor *processor = processors.value(fileInfo.suffix(), nullptr);
@@ -92,10 +92,14 @@ int SandboxedProcessor::process()
 			processor = defaultTextProcessor;
 		}
 	}
+	if(!fileInfo.isReadable())
+	{
+		return NOACCESS;
+	}
 	if(processor == nullptr || processor == nothingProcessor)
 	{
 		/* Nothing to do */
-		return NOTHING_PROCESSED;
+		return OK;
 	}
 
 	QVector<PageData> pageData;
@@ -119,9 +123,9 @@ int SandboxedProcessor::process()
 	catch(LooqsGeneralException &e)
 	{
 		Logger::error() << "SandboxedProcessor: Error while processing" << absPath << ":" << e.message << Qt::endl;
-		return 3 /* PROCESSFAIL */;
+		return PROCESSFAIL;
 	}
 
 	printResults(pageData);
-	return 0;
+	return pageData.isEmpty() ? OK_WASEMPTY : OK;
 }

shared/sandboxedprocessor.h

@@ -3,6 +3,7 @@
 #include <QString>
 #include <QMimeDatabase>
 #include "pagedata.h"
+#include "savefileresult.h"
 
 class SandboxedProcessor
 {
@@ -19,7 +20,7 @@ class SandboxedProcessor
 		this->filePath = filepath;
 	}
 
-	int process();
+	SaveFileResult process();
 };
 
 #endif // SANDBOXEDPROCESSOR_H

shared/savefileresult.h

@@ -0,0 +1,38 @@
+#ifndef SAVEFILERESULT_H
+#define SAVEFILERESULT_H
+
+#include <QStringList>
+
+enum SaveFileResult
+{
+	OK,
+	OK_WASEMPTY, /* The file was successfully read but no content could be extracted. Might be just an empty document or
+					so*/
+	SKIPPED,	 /* The file was not processed/saved, because it has not changed */
+	DBFAIL,		 /* A database error occured */
+	PROCESSFAIL, /* General processor failure */
+	NOTFOUND,	 /* The file was not found */
+	NOACCESS	 /* The process can't read the file */
+};
+
+static inline QString SaveFileResultToString(SaveFileResult sfr)
+{
+	QStringList SaveFileResultStr;
+
+	SaveFileResultStr << "OK"
+					  << "OK_WASEMPTY"
+					  << "SKIPPED"
+					  << "DBFAIL"
+					  << "PROCESSFAIL"
+					  << "NOTFOUND"
+					  << "NOACCESS";
+
+	return SaveFileResultStr[(int)sfr];
+}
+
+static inline bool isErrorSaveFileResult(SaveFileResult result)
+{
+	return result == DBFAIL || result == PROCESSFAIL || result == NOTFOUND || result == NOACCESS;
+}
+
+#endif // SAVEFILERESULT_H

shared/shared.pro

@@ -16,7 +16,11 @@ CONFIG += c++17
 INCLUDEPATH += $$PWD/../sandbox/exile.h/
 INCLUDEPATH += /usr/include/poppler/qt5/ /usr/include/quazip5
 
-
+# Dirty, we only need the includes here but well this magic works, so...
+packagesExist(quazip1-qt5) {
+       PKGCONFIG += quazip1-qt5
+       CONFIG += link_pkgconfig
+}
 
 # The following define makes your compiler emit warnings if you use
 # any feature of Qt which has been marked as deprecated (the exact warnings
@@ -84,6 +88,7 @@ HEADERS += sqlitesearch.h \
     pdfprocessor.h \
     processor.h \
     sandboxedprocessor.h \
+    savefileresult.h \
     searchresult.h \
     sqlitedbservice.h \
     tagstripperprocessor.h \
@@ -96,3 +101,4 @@ unix {
     INSTALLS += target
 }
 RESOURCES = migrations/migrations.qrc
+RESOURCES += plaintexts.qrc

shared/sqlitedbservice.cpp

@@ -151,11 +151,14 @@ SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, QVector<PageData> &
 	int lastid = inserterQuery.lastInsertId().toInt();
 	for(const PageData &data : pageData)
 	{
+		QSqlQuery ftsQuery(db);
+		ftsQuery.prepare("INSERT INTO fts(content) VALUES(?)");
+		ftsQuery.addBindValue(data.content);
+		ftsQuery.exec();
 		QSqlQuery contentQuery(db);
-		contentQuery.prepare("INSERT INTO content(fileid, page, content) VALUES(?, ?, ?)");
+		contentQuery.prepare("INSERT INTO content(fileid, page, ftsid) VALUES(?, ?, last_insert_rowid())");
 		contentQuery.addBindValue(lastid);
 		contentQuery.addBindValue(data.pagenumber);
-		contentQuery.addBindValue(data.content);
 		if(!contentQuery.exec())
 		{
 			db.rollback();

shared/sqlitedbservice.h

@@ -7,14 +7,7 @@
 #include "filedata.h"
 #include "../shared/sqlitesearch.h"
 #include "../shared/token.h"
-enum SaveFileResult
-{
-	OK,
-	SKIPPED,
-	DBFAIL,
-	PROCESSFAIL,
-	NOTFOUND
-};
+#include "savefileresult.h"
 
 class SqliteDbService
 {

shared/sqlitesearch.cpp

@@ -66,6 +66,28 @@ QString SqliteSearch::createSortSql(const QVector<SortCondition> sortConditions)
 	return "";
 }
 
+QString SqliteSearch::escapeFtsArgument(QString ftsArg)
+{
+	QString result;
+	QRegularExpression extractor(R"#("([^"]*)"|([^\s]+))#");
+	QRegularExpressionMatchIterator i = extractor.globalMatch(ftsArg);
+	while(i.hasNext())
+	{
+		QRegularExpressionMatch m = i.next();
+		QString value = m.captured(1);
+		if(value.isEmpty())
+		{
+			value = m.captured(2);
+		}
+		else
+		{
+			value = "\"\"" + value + "\"\"";
+		}
+		result += "\"" + value + "\" ";
+	}
+	return result;
+}
+
 QPair<QString, QVector<QString>> createNonArgPair(QString key)
 {
 	return {" " + key + " ", QVector<QString>()};
@@ -115,9 +137,9 @@ QPair<QString, QVector<QString>> SqliteSearch::createSql(const Token &token)
 	}
 	if(token.type == FILTER_CONTENT_CONTAINS)
 	{
-		return {" content.id IN (SELECT content_fts.ROWID FROM content_fts WHERE content_fts.content MATCH ? ORDER BY "
+		return {" content.id IN (SELECT fts.ROWID FROM fts WHERE fts.content MATCH ? ORDER BY "
 				"rank) ",
-				{value}};
+				{escapeFtsArgument(value)}};
 	}
 	throw LooqsGeneralException("Unknown token passed (should not happen)");
 }
@@ -141,11 +163,11 @@ QSqlQuery SqliteSearch::makeSqlQuery(const LooqsQuery &query)
 		{
 			if(!ftsAlreadyJoined)
 			{
-				joinSql += " INNER JOIN content_fts ON content.id = content_fts.ROWID ";
+				joinSql += " INNER JOIN fts ON content.ftsid = fts.ROWID ";
 				ftsAlreadyJoined = true;
 			}
-			whereSql += " content_fts.content MATCH ? ";
-			bindValues.append(token.value);
+			whereSql += " fts.content MATCH ? ";
+			bindValues.append(escapeFtsArgument(token.value));
 		}
 		else
 		{

shared/sqlitesearch.h

@@ -18,6 +18,7 @@ class SqliteSearch
 	QString fieldToColumn(QueryField field);
 	QPair<QString, QVector<QString>> createSql(const Token &token);
 	QString createSortSql(const QVector<SortCondition> sortConditions);
+	QString escapeFtsArgument(QString ftsArg);
 };
 
 #endif // SQLITESEARCH_H