Add JSON export.

cmake/remwhareadConfig.cmake.in

@@ -2,7 +2,7 @@ include(CMakeFindDependencyMacro)
 include(GNUInstallDirs)
 
 find_depencency(Poco
-  COMPONENTS Foundation Net NetSSL Data DataSQLite
+  COMPONENTS Foundation Net NetSSL Data DataSQLite JSON
   CONFIG REQUIRED)
 find_dependency(PkgConfig REQUIRED)
 pkg_check_modules(libxdg-basedir REQUIRED IMPORTED_TARGET libxdg-basedir)

include/export/json.hpp

@@ -0,0 +1,46 @@
+/*  This file is part of remwharead.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef REMWHAREAD_JSON_HPP
+#define REMWHAREAD_JSON_HPP
+
+#include <string>
+#include "export.hpp"
+
+namespace remwharead
+{
+namespace Export
+{
+    using std::string;
+
+    /*!
+     *  @brief  Export as JSON array.
+     *
+     *  @since  0.8.0
+     *
+     *  @headerfile json.hpp remwharead/export/json.hpp
+     */
+    class JSON : protected ExportBase
+    {
+    public:
+        using ExportBase::ExportBase;
+
+        virtual void print() const override;
+    };
+}
+}
+
+#endif  // REMWHAREAD_JSON_HPP

include/types.hpp

@@ -34,7 +34,8 @@ namespace remwharead
         csv,
         asciidoc,
         bookmarks,
-        simple
+        simple,
+        json
     };
 }
 

man/remwharead.1.adoc

@@ -2,7 +2,7 @@
 :doctype:       manpage
 :Author:        tastytea
 :Email:         tastytea@tastytea.de
-:Date:          2019-08-09
+:Date:          2019-09-03
 :Revision:      0.0.0
 :man source:    remwharead
 :man manual:    General Commands Manual
@@ -24,7 +24,7 @@ remwharead - Saves URIs of things you want to remember in a database
  the full text of the page and optional tags.
 
 The database can be filtered by time, tags and full text and exported to CSV,
-AsciiDoc or a bookmarks file.
+AsciiDoc, a bookmarks file or JSON.
 
 Archiving is done using the Wayback machine from the
 https://archive.org/[Internet Archive].
@@ -35,8 +35,8 @@ https://archive.org/[Internet Archive].
 Add tags to _URI_, delimited by commas.
 
 *-e* _format_, *--export* _format_::
-Export to _format_. Possible values are _csv_, _asciidoc_, _bookmarks_ or
-_simple_. See _FORMATS_.
+Export to _format_. Possible values are _csv_, _asciidoc_, _bookmarks_,
+_simple_ or _json_. See _FORMATS_.
 
 *-f* _file_, *--file* _file_::
 Save output to _file_. Default is stdout.
@@ -133,6 +133,12 @@ understood by most browsers.
 
 Simple, human readable, list. Outputs date, title and URI.
 
+=== json
+
+Export as JSON array. See https://tools.ietf.org/html/rfc8259[RFC 8259]. Each
+object contains the members _uri_, _archive_uri_, _datetime_, _tags_ (array),
+_title_, _description_ and _fulltext_.
+
 == SEARCH EXPRESSIONS
 
 A search expression is either a single term, or several terms separated by _AND_

pkg-config/remwharead.pc.in

@@ -10,4 +10,4 @@ Version: @PROJECT_VERSION@
 Cflags: -I${includedir}
 Libs: -L${libdir} -l${name} -lPocoData -lstdc++fs
 Requires.private: libxdg-basedir, icu-uc, icu-i18n
-Libs.private: -lPocoFoundation -lPocoNet -lPocoNetSSL -lPocoDataSQLite
+Libs.private: -lPocoFoundation -lPocoNet -lPocoNetSSL -lPocoDataSQLite -lPocoJSON

src/cli/main.cpp

@@ -28,6 +28,7 @@
 #include "export/adoc.hpp"
 #include "export/bookmarks.hpp"
 #include "export/simple.hpp"
+#include "export/json.hpp"
 #include "search.hpp"
 
 using namespace remwharead;
@@ -177,6 +178,19 @@ int App::main(const std::vector<std::string> &args)
             }
             break;
         }
+        case export_format::json:
+        {
+            if (file.is_open())
+            {
+                Export::JSON(entries, file).print();
+                file.close();
+            }
+            else
+            {
+                Export::JSON(entries).print();
+            }
+            break;
+        }
         default:
         {
             break;

src/cli/parse_options.cpp

@@ -139,6 +139,10 @@ void App::handle_options(const std::string &name, const std::string &value)
         {
             _format = export_format::simple;
         }
+        else if (value == "json")
+        {
+            _format = export_format::json;
+        }
         else
         {
             cerr << "Error: Unknown format.\n";

src/lib/CMakeLists.txt

@@ -3,7 +3,7 @@ include(GNUInstallDirs)
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(libxdg-basedir REQUIRED IMPORTED_TARGET libxdg-basedir)
 # Some distributions do not contain Poco*Config.cmake recipes.
-find_package(Poco COMPONENTS Foundation Net NetSSL Data DataSQLite CONFIG)
+find_package(Poco COMPONENTS Foundation Net NetSSL Data DataSQLite JSON CONFIG)
 
 file(GLOB_RECURSE sources_lib *.cpp)
 file(GLOB_RECURSE headers_lib ../../include/*.hpp)
@@ -28,7 +28,7 @@ target_link_libraries(${PROJECT_NAME}
 # If no Poco*Config.cmake recipes are found, look for headers in standard dirs.
 if(PocoNetSSL_FOUND)
   target_link_libraries(${PROJECT_NAME}
-    PRIVATE Poco::Foundation Poco::Net Poco::NetSSL Poco::DataSQLite
+    PRIVATE Poco::Foundation Poco::Net Poco::NetSSL Poco::DataSQLite Poco::JSON
     PUBLIC Poco::Data)
 else()
   find_file(Poco_h NAMES "Poco/Poco.h"
@@ -42,7 +42,7 @@ else()
       "but the files seem to be in the standard directories. "
       "Let's hope this works.")
     target_link_libraries(${PROJECT_NAME}
-      PRIVATE PocoFoundation PocoNet PocoNetSSL PocoDataSQLite
+      PRIVATE PocoFoundation PocoNet PocoNetSSL PocoDataSQLite PocoJSON
       PUBLIC PocoData)
   endif()
 endif()

src/lib/export/json.cpp

@@ -0,0 +1,61 @@
+/*  This file is part of remwharead.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <Poco/JSON/Object.h>
+#include <Poco/JSON/Stringifier.h>
+#include "time.hpp"
+#include "export/json.hpp"
+
+namespace remwharead
+{
+    using std::cerr;
+    using std::endl;
+
+    void Export::JSON::print() const
+    {
+        try
+        {
+            Poco::JSON::Array root = Poco::JSON::Array();
+
+            for (const Database::entry &entry : _entries)
+            {
+                Poco::JSON::Object json_entry = Poco::JSON::Object();
+
+                json_entry.set("uri", entry.uri);
+                json_entry.set("archive_uri", entry.archive_uri);
+                json_entry.set("datetime", timepoint_to_string(entry.datetime));
+                Poco::JSON::Array tags = Poco::JSON::Array();
+                for (const string &tag : entry.tags)
+                {
+                    tags.add(tag);
+                }
+                json_entry.set("tags", tags);
+                json_entry.set("title", entry.title);
+                json_entry.set("description", entry.description);
+                json_entry.set("fulltext", entry.fulltext);
+
+                root.add(json_entry);
+            }
+
+            root.stringify(_out);
+            _out << endl;
+        }
+        catch (std::exception &e)
+        {
+            cerr << "Error in " << __func__ << ": " << e.what() << endl;
+        }
+    }
+}