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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:FDL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\contentspage list-of-language-items.html
\previouspage Module
\nextpage Parameter
\qmltype ModuleProvider
\inqmlmodule QbsLanguageItems
\ingroup list-of-items
\keyword QML.ModuleProvider
\brief Creates modules on demand.
The \c ModuleProvider item implements the module creation part of the procedure described
in the \l {Module Providers} overview. It is always located in a file called \c provider.qbs.
The actual module creation is done on the right-hand side of the
\l{ModuleProvider::relativeSearchPaths}{relativeSearchPaths} property.
Here is a complete minimal example of a module provider. It just creates an empty module.
If you put this item into the file \c {module-providers/mymodule/provider.qbs}
in your project source directory, you will be able to successfully build a product which
contains a dependency on the module \c mymodule.
\code
import qbs.File
import qbs.FileInfo
import qbs.TextFile
ModuleProvider {
relativeSearchPaths: {
var moduleDir = FileInfo.joinPaths(outputBaseDir, "modules", name);
File.makePath(moduleDir);
var moduleFilePath = FileInfo.joinPaths(moduleDir, name + ".qbs");
var moduleFile = new TextFile(moduleFilePath, TextFile.WriteOnly);
moduleFile.writeLine("Module {");
moduleFile.writeLine("}");
moduleFile.close();
return "";
}
}
\endcode
*/
/*!
\qmlproperty string ModuleProvider::name
The name of the module provider.
This property is set by \QBS. For simple dependency names, it is the name of the dependency
as specified in the \l Depends item. If the dependency name consists of multiple components,
the value is the name up until (and including) the component that corresponds to the directory
the provider was found in. For instance, if the dependency is \c {x.m1} and the provider was
found in \c {module-providers/x/m1/provider.qbs}, then \c name is \c {x.m1}.
If the provider was found in \c {module-providers/x/provider.qbs}, then \c name is \c x.
*/
/*!
\qmlproperty string ModuleProvider::outputBaseDir
The path under which the new modules should be created when \l relativeSearchPaths
is evaluated. The path is unique for the current provider in the given configuration.
This property is set by \QBS.
*/
/*!
\qmlproperty stringList ModuleProvider::relativeSearchPaths
This property gets evaluated by \QBS to retrieve new search paths with which
to re-attempt the module look-up.
It is here where you need to put the code that creates the new module files.
Use the directory structure explained in \l {Custom Modules and Items}.
That is, the file for a module called \c m will be located in a directory \c {modules/m/},
anchored at \l outputBaseDir.
The return value is the list of search paths required to find the new module,
relative to \l outputBaseDir. In most cases, only a single search path will be required,
in which case a single-element list containing an empty string should be returned
(or just the empty string, because of \QBS' auto-conversion feature).
The returned list can also be empty, which means that the module provider was not able
to generate any modules in this environment.
*/
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