Added support for tags (#2).

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.2)
 project(gitea2rss
-  VERSION 0.3.1
+  VERSION 0.4.0
   LANGUAGES CXX
 )
 

README.adoc

@@ -1,6 +1,6 @@
 = gitea2rss
 
-*gitea2rss* Generates RSS feeds from https://gitea.io[Gitea] releases.
+*gitea2rss* Generates RSS feeds from https://gitea.io[Gitea] releases or tags.
 
 https://rss.schlomp.space/?repo=tastytea/gitea2rss[Subscribe to gitea2rss releases].
 

gitea2rss.1.adoc

@@ -2,7 +2,7 @@
 :doctype:       manpage
 :Author:        tastytea
 :Email:         tastytea@tastytea.de
-:Date:          2019-04-18
+:Date:          2019-04-20
 :Revision:      0.0.0
 :man source:    gitea2rss
 :man version:   {revision}
@@ -14,19 +14,22 @@ gitea2rss - Generates RSS feeds from Gitea releases.
 
 == SYNOPSIS
 
-*gitea2rss* _URL of Gitea project_
+*gitea2rss* _URL of Gitea project_ [_releases_|_tags_]
 
 == DESCRIPTION
 
-gitea2rss fetches the releases from the Gitea API, converts the data into an RSS
-feed and dumps it to stdout. You can use it as a CGI script to generate the
-feeds dynamically or simply use cron to generate the feeds at fixed intervals.
+gitea2rss fetches the releases (default) or tags from the Gitea API,
+converts the data into an RSS feed and dumps it to stdout. You can use it as a
+CGI script to generate the feeds dynamically or simply use cron to generate the
+feeds at fixed intervals.
 
 If you want to use gitea2rss as a CGI script, you have to set
 *GITEA2RSS_BASEURL* to the basis URL of your instance, without the trailing
 slash. For example: _https://git.example.com_. The *QUERY_STRING* must contain
 _repo=user/project_. The feed-URL for alice's project, cooltool, would be:
-`https://rss.example.com/?repo=alice/cooltool`.
+`https://rss.example.com/?repo=alice/cooltool`. You can select the type of the
+feed by appending `&type=` at the end of the URL. For example:
+`https://rss.example.com/?repo=alice/cooltool&type=tags`.
 
 The generated RSS feed contains the *channel* elements _title_, _link_,
 _description_, _generator_ and _lastBuildDate_ and the *item* elements _title_,
@@ -46,6 +49,9 @@ this in it:
 <link rel="alternate" type="application/rss+xml"
       title="Releases of {{.Repository.Name}}"
       href="https://rss.example.com/?repo={{.Repository.Owner.Name}}/{{.Repository.Name}}"/>
+<link rel="alternate" type="application/rss+xml"
+      title="Tags of {{.Repository.Name}}"
+      href="https://rss.example.com/?repo={{.Repository.Owner.Name}}/{{.Repository.Name}}&type=tags"/>
 {{end}}
 ----
 
@@ -56,7 +62,7 @@ variables. See *curl*(1), section _ENVIRONMENT_.
 
 == EXAMPLES
 
-`gitea2rss https://git.example.com/user/project > repo.rss`
+`gitea2rss https://git.example.com/user/project tags > repo.rss`
 
 `https_proxy="socks4a://user:pass@localhost:9050/" gitea2rss
 https://git.example.com/user/project`

src/gitea2rss.hpp

@@ -41,7 +41,10 @@ const string strtime(const string &time);
 void write_line(const uint8_t spaces, const string &tag, const string &value);
 
 //! Write releases.
-uint8_t releases(const string &url);
+uint8_t write_releases(const string &url);
+
+//! Write tags.
+uint8_t write_tags(const string &url);
 
 //! @brief Get the base URL, without trailing slash.
 const string get_baseurl(const string &url);

src/main.cpp

@@ -89,20 +89,23 @@ int main(int argc, char *argv[])
         cout << endl;
     }
 
-    const string now = strtime(system_clock::now());
+    cout << "<rss version=\"2.0\">\n"
+        "  <channel>\n";
 
-    cout <<
-        "<rss version=\"2.0\">\n"
-        "  <channel>\n"
-        "    <title>" << get_project(url) << " " << type << "</title>\n"
-        "    <link>" << url << "</link>\n"
-        "    <generator>gitea2rss " << global::version << "</generator>\n"
-        "    <lastBuildDate>" << now << "</lastBuildDate>\n";
+    write_line(4, "title", get_project(url) + " " + type);
+    write_line(4, "link", url);
+    write_line(4, "description", "List of " + type + " of " + get_repo(url));
+    write_line(4, "generator", string("gitea2rss ") + global::version);
+    write_line(4, "lastBuildDate", strtime(system_clock::now()));
 
     uint8_t ret = 0;
     if (type == "releases")
     {
-        ret = releases(url);
+        ret = write_releases(url);
+    }
+    else if (type == "tags")
+    {
+        ret = write_tags(url);
     }
 
     if (ret != 0)
@@ -110,8 +113,7 @@ int main(int argc, char *argv[])
         return ret;
     }
 
-    cout <<
-        "  </channel>\n"
+    cout << "  </channel>\n"
         "</rss>\n";
 
     curlpp::terminate();

src/releases.cpp

@@ -23,7 +23,7 @@ using std::cout;
 using std::cerr;
 using std::stringstream;
 
-uint8_t releases(const string &url)
+uint8_t write_releases(const string &url)
 {
     const string baseurl = get_baseurl(url);
     const string repo = get_repo(url);
@@ -43,8 +43,10 @@ uint8_t releases(const string &url)
     {
         const bool prerelease = release["prerelease"].asBool();
         const string type = (prerelease ? "Pre-Release" : "Stable");
+
         cout << "    <item>\n";
-        write_line(6, "title", get_project(url) + ": " + release["name"].asString());
+        write_line(6, "title", get_project(url) + ": "
+                   + release["name"].asString());
         write_line(6, "link", baseurl + "/" + repo + "/releases");
         write_line(6, "guid isPermaLink=\"false\"",
                    get_domain(url) + " release " + release["id"].asString());
@@ -53,7 +55,7 @@ uint8_t releases(const string &url)
                    "\n        <![CDATA[<p><strong>" + type + "</strong></p>\n"
                    "<pre>" + release["body"].asString() + "</pre>\n"
                    "        <p><a href=\"" + release["tarball_url"].asString()
-                   + "\">Download tarball</a></p>" + "]]>\n      ");
+                   + "\">Download tarball</a></p>]]>\n      ");
         cout << "    </item>\n";
     }
 

src/tags.cpp

@@ -0,0 +1,64 @@
+/*  This file is part of gitea2rss.
+ *  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 <iostream>
+#include <sstream>
+#include <jsoncpp/json/json.h>
+#include "gitea2rss.hpp"
+
+using std::cout;
+using std::cerr;
+using std::stringstream;
+
+uint8_t write_tags(const string &url)
+{
+    const string baseurl = get_baseurl(url);
+    const string repo = get_repo(url);
+    stringstream data(get_http(baseurl + "/api/v1/repos/"
+                               + repo + "/git/refs"));
+
+    if (data.str().empty())
+    {
+        cerr << "Error: Could not download tags.\n";
+        return 2;
+    }
+
+    Json::Value json;
+    data >> json;
+
+    for (const Json::Value &ref : json)
+    {
+        if (ref["object"]["type"].asString() != "tag")
+        {
+            continue;
+        }
+
+        const string name = ref["ref"].asString().substr(10);
+        const string sha = ref["object"]["sha"].asString();
+
+        cout << "    <item>\n";
+        write_line(6, "title", get_project(url) + ": " + name);
+        write_line(6, "link", baseurl + "/" + repo + "/src/tag/" + name);
+        write_line(6, "guid isPermaLink=\"false\"",
+                   get_domain(url) + " tag " + sha);
+        write_line(6, "description",
+                   "\n        <![CDATA[<p><strong>" + name + "</strong> "
+                   "with checksum " + sha + "</p>]]>\n      ");
+        cout << "    </item>\n";
+    }
+
+    return 0;
+}