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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qbs.
**
** 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.
**
** In addition, 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.
**
****************************************************************************/

import qbs.File
import qbs.FileInfo
import qbs.ModUtils

AppleDiskImage {
    property string sourceBase: "/Applications"
    readonly property string absoluteSourceBase: FileInfo.joinPaths(qbs.installRoot, sourceBase)
    property stringList symlinks: ["/Applications:Applications"]

    readonly property string stageDirectory: FileInfo.joinPaths(destinationDirectory, "Volumes", dmg.volumeName)

    Rule {
        multiplex: true
        outputFileTags: ["dmg.input", "dmg.input.symlink"]
        outputArtifacts: Array.prototype.map.call(product.symlinks, function (symlink) {
            var symlinkTarget = symlink.split(':')[0];
            var symlinkName = symlink.split(':')[1] || symlinkTarget;
            if (FileInfo.isAbsolutePath(symlinkName))
                throw(symlink + " is an invalid symlink; the destination must be a relative path");
            return {
                filePath: FileInfo.joinPaths(product.stageDirectory, symlinkName),
                fileTags: ["dmg.input", "dmg.input.symlink"],
                dmg: { symlinkTarget: symlinkTarget, sourceBase: product.stageDirectory },
            };
        })
        prepare: Array.prototype.map.call(outputs["dmg.input"], function (symlink) {
            var cmd = new Command("ln", ["-sfn", symlink.dmg.symlinkTarget, symlink.filePath]);
            cmd.workingDirectory = product.stageDirectory;
            cmd.description = "symlinking " + symlink.fileName + " to " + symlink.dmg.symlinkTarget;
            return cmd;
        });
    }

    Rule {
        multiplex: true
        inputs: ["dmg.input.symlink"]
        inputsFromDependencies: ["installable"]
        outputFileTags: ["dmg.input"]
        outputArtifacts: {
            var absSourceBase = product.absoluteSourceBase;
            var symlinkPaths = (inputs["dmg.input.symlink"] || []).map(function (s) { return s.filePath; });
            return Array.prototype.map.call(inputs["installable"], function (a) {
                var fp = ModUtils.artifactInstalledFilePath(a);
                if (fp.startsWith(absSourceBase)) {
                    var outputFilePath = fp.replace(absSourceBase, product.stageDirectory);

                    // Check for symlink conflicts
                    for (var i in symlinkPaths) {
                        if (outputFilePath.startsWith(symlinkPaths[i]))
                            throw new Error("Cannot install '" + a.filePath
                                + "' to '" + outputFilePath + "' because it "
                                + "would conflict with the symlink at '"
                                + symlinkPaths[i] + "'");
                    }

                    return {
                        filePath: outputFilePath,
                        fileTags: ["dmg.input"],
                        dmg: { sourceBase: product.stageDirectory }
                    }
                }
            }).filter(function (a) { return !!a; });
        }
        prepare: {
            var absSourceBase = product.absoluteSourceBase;
            var cmds = [], dmgs = outputs["dmg.input"];
            for (var i in dmgs) {
                var a = dmgs[i];
                var cmd = new JavaScriptCommand();
                cmd.src = a.filePath.replace(product.stageDirectory, absSourceBase);
                cmd.dst = a.filePath;
                cmd.silent = true;
                cmd.sourceCode = function () { File.copy(src, dst); };
                cmds.push(cmd);
            }
            return cmds;
        }
    }
}