cpp: Add API for swdb queries

* lang/cpp/src/swdbresult.cpp,
 lang/cpp/src/swdbresult.h (SwdbResult): New.
* lang/cpp/src/Makefile.am: Update accordingly.

1 files changed, 128 insertions, 0 deletions

diff --git a/lang/cpp/src/swdbresult.h b/lang/cpp/src/swdbresult.h
new file mode 100644
index 00000000..e15954dc
--- /dev/null
+++ b/lang/cpp/src/swdbresult.h
@@ -0,0 +1,128 @@
+/*
+  swdbresult.h - wraps a gpgme swdb query / rsult
+  Copyright (C) 2016 Intevation GmbH
+
+  This file is part of GPGME++.
+
+  GPGME++ is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  GPGME++ is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public License
+  along with GPGME++; see the file COPYING.LIB.  If not, write to the
+  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+*/
+#ifndef __GPGMEPP_SWDB_H__
+#define __GPGMEPP_SWDB_H__
+
+#include "gpgmepp_export.h"
+
+#include "global.h"
+#include "engineinfo.h"
+
+#include <vector>
+#include <string>
+#include <iostream>
+#include <ostream>
+
+namespace GpgME
+{
+
+class GPGMEPP_EXPORT SwdbResult
+{
+public:
+    /* Obtain swdb results through query() */
+    SwdbResult();
+    explicit SwdbResult(gpgme_query_swdb_result_t result);
+
+    /** Query the swdb to get information about updates.
+     *
+     * Runs gpgconf --query-swdb through gpgme and
+     * returns a list of results.
+     * If iversion is given as NULL a check is only done if GPGME
+     * can figure out the version by itself (for example when using
+     * "gpgme" or "gnupg").
+     *
+     * If NULL is used for name the current gpgme version is
+     * checked.
+     *
+     * @param name: Name of the component to query.
+     * @param iversion: Optionally the installed version.
+     * @param err: Optional error.
+     */
+    static std::vector<SwdbResult> query(const char *name,
+                                         const char *iversion = NULL,
+                                         Error *err = NULL);
+
+    const SwdbResult &operator=(SwdbResult other)
+    {
+        swap(other);
+        return *this;
+    }
+
+    void swap(SwdbResult &other)
+    {
+        using std::swap;
+        swap(this->d, other.d);
+    }
+    bool isNull() const;
+
+    /* The name of the package (e.g. "gpgme", "gnupg") */
+    std::string name() const;
+
+    /* The version of the installed version.  */
+    EngineInfo::Version installedVersion() const;
+
+    /* The time the online info was created.  */
+    unsigned long created() const;
+
+    /* The time the online info was retrieved.  */
+    unsigned long retrieved() const;
+
+    /* This bit is set if an error occured or some of the information
+     * in this structure may not be set.  */
+    bool warning() const;
+
+    /* An update is available.  */
+    bool update() const;
+
+    /* The update is important.  */
+    bool urgent() const;
+
+    /* No information at all available.  */
+    bool noinfo() const;
+
+    /* The package name is not known. */
+    bool unknown() const;
+
+    /* The information here is too old.  */
+    bool tooOld() const;
+
+    /* Other error.  */
+    bool error() const;
+
+    /* The version of the latest released version.  */
+    EngineInfo::Version version() const;
+
+    /* The release date of that version.  */
+    unsigned long releaseDate() const;
+
+private:
+    class Private;
+    std::shared_ptr<Private> d;
+};
+
+GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const SwdbResult &info);
+
+} // namespace GpgME
+
+GPGMEPP_MAKE_STD_SWAP_SPECIALIZATION(SwdbResult)
+
+#endif