Allow RESOURCES to contain standalone files and collections of files

Standalone files are added by using RESOURCES += file.txt, while
collections of files are defined as collection.files = f1.txt f2.txt
and then added using RESOURCES += collection. For collections a prefix
can also be set using collection.prefix = /foo. The standalone files
are not prefixed.

Change-Id: I8236808238414da05e744f799a1bb15a72f4a46f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>

mkspecs/features/resources.prf

@@ -6,6 +6,66 @@ isEmpty(QMAKE_MOD_RCC):QMAKE_MOD_RCC = qrc
 !contains(QMAKE_RESOURCE_FLAGS, -root):!isEmpty(QMAKE_RESOURCE_ROOT):QMAKE_RESOURCE_FLAGS += -root $$QMAKE_RESOURCE_ROOT
 !contains(QMAKE_RESOURCE_FLAGS, -name): QMAKE_RESOURCE_FLAGS += -name ${QMAKE_FILE_BASE}
 
+# http://www.w3.org/TR/xml/#syntax
+defineReplace(xml_escape) {
+    1 ~= s,&,&,
+    1 ~= s,\',',
+    1 ~= s,\",",
+    1 ~= s,<,&lt;,
+    1 ~= s,>,&gt;,
+    return($$1)
+}
+
+RESOURCES += qmake_immediate
+for(resource, RESOURCES) {
+    # Regular case of user qrc file
+    contains(resource, ".*\.qrc$"): \
+        next()
+
+    # Fallback for stand-alone files/directories
+    !defined($${resource}.files, var) {
+        !equals(resource, qmake_immediate) {
+            !exists($$absolute_path($$resource, $$_PRO_FILE_PWD_)): \
+                warning("Failure to find: $$resource")
+            qmake_immediate.files += $$resource
+        }
+        RESOURCES -= $$resource
+        next()
+    }
+
+    resource_file = $$RCC_DIR/qmake_$${resource}.qrc
+
+    !debug_and_release|build_pass {
+        # Collection of files, generate qrc file
+        prefix = $$eval($${resource}.prefix)
+        isEmpty(prefix): \
+            prefix = "/"
+
+        resource_file_content = \
+            "<!DOCTYPE RCC><RCC version=\"1.0\">" \
+            "<qresource prefix=\"$$xml_escape($$prefix)\">"
+
+        abs_base = $$absolute_path($$eval($${resource}.base), $$_PRO_FILE_PWD_)
+
+        for(file, $${resource}.files) {
+            abs_path = $$absolute_path($$file, $$_PRO_FILE_PWD_)
+            alias = $$relative_path($$abs_path, $$abs_base)
+            resource_file_content += \
+                "<file alias=\"$$xml_escape($$alias)\">$$xml_escape($$abs_path)</file>"
+        }
+
+        resource_file_content += \
+            "</qresource>" \
+            "</RCC>"
+
+        !write_file($$OUT_PWD/$$resource_file, resource_file_content): \
+            error("Aborting.")
+    }
+
+    RESOURCES -= $$resource
+    RESOURCES += $$resource_file
+}
+
 rcc.input = RESOURCES
 rcc.name = RCC ${QMAKE_FILE_IN}
 rcc.depend_command = $$QMAKE_RCC_DEP -list $$QMAKE_RESOURCE_FLAGS ${QMAKE_FILE_IN}

tests/auto/tools/qmake/qmake.pro

@@ -8,5 +8,11 @@ SOURCES += tst_qmake.cpp testcompiler.cpp
 QT = core testlib
 
 cross_compile: DEFINES += QMAKE_CROSS_COMPILED
+debug_and_release {
+    CONFIG(debug, debug|release): \
+        DEFINES += DEBUG_BUILD
+    else: \
+        DEFINES += RELEASE_BUILD
+}
 
 TESTDATA += testdata/*

tests/auto/tools/qmake/testdata/resources/main.cpp

@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+
+#include <qguiapplication.h>
+
+int main( int argc, char **argv )
+{
+    QGuiApplication a( argc, argv );
+    return a.exec();
+}

tests/auto/tools/qmake/testdata/resources/resources.pro

@@ -0,0 +1,10 @@
+TEMPLATE = app
+SOURCES = main.cpp
+
+pro_file.files = resources.pro
+pro_file.prefix = /prefix
+
+subdir.files = subdir/file.txt
+subdir.base = subdir
+
+RESOURCES = test.qrc main.cpp pro_file subdir

tests/auto/tools/qmake/testdata/resources/test.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>test.qrc</file>
+    </qresource>
+</RCC>

tests/auto/tools/qmake/tst_qmake.cpp

@@ -39,6 +39,14 @@
 #include <QStandardPaths>
 #include <QDir>
 
+#if defined(DEBUG_BUILD)
+#  define DIR_INFIX "debug/"
+#elif defined(RELEASE_BUILD)
+#  define DIR_INFIX "release/"
+#else
+#  define DIR_INFIX ""
+#endif
+
 class tst_qmake : public QObject
 {
     Q_OBJECT
@@ -85,6 +93,7 @@ private slots:
     void project();
     void proFileCache();
     void json();
+    void resources();
 
 private:
     TestCompiler test_compiler;
@@ -583,5 +592,38 @@ void tst_qmake::json()
     QVERIFY(output.contains("json.false is false"));
 }
 
+void tst_qmake::resources()
+{
+    QString workDir = base_path + "/testdata/resources";
+    QVERIFY(test_compiler.qmake(workDir, "resources"));
+
+    {
+        QFile qrcFile(workDir + "/.rcc/" DIR_INFIX "qmake_pro_file.qrc");
+        QVERIFY(qrcFile.exists());
+        QVERIFY(qrcFile.open(QFile::ReadOnly));
+        QByteArray qrcXml = qrcFile.readAll();
+        QVERIFY(qrcXml.contains("alias=\"resources.pro\""));
+        QVERIFY(qrcXml.contains("prefix=\"/prefix\""));
+    }
+
+    {
+        QFile qrcFile(workDir + "/.rcc/" DIR_INFIX "qmake_subdir.qrc");
+        QVERIFY(qrcFile.exists());
+        QVERIFY(qrcFile.open(QFile::ReadOnly));
+        QByteArray qrcXml = qrcFile.readAll();
+        QVERIFY(qrcXml.contains("alias=\"file.txt\""));
+    }
+
+    {
+        QFile qrcFile(workDir + "/.rcc/" DIR_INFIX "qmake_qmake_immediate.qrc");
+        QVERIFY(qrcFile.exists());
+        QVERIFY(qrcFile.open(QFile::ReadOnly));
+        QByteArray qrcXml = qrcFile.readAll();
+        QVERIFY(qrcXml.contains("alias=\"main.cpp\""));
+    }
+
+    QVERIFY(test_compiler.make(workDir));
+}
+
 QTEST_MAIN(tst_qmake)
 #include "tst_qmake.moc"