Add -a/--all option to show all versions

src/main.cpp

@@ -16,13 +16,15 @@ void print_help() {
 
 int main(int argc, char* argv[]) {
     try {
+        bool all = false;
         int opt_char, opt_val;
         struct option long_options[] = {
             {"help", no_argument, nullptr, 'h'},
+            {"all", no_argument, nullptr, 'a'},
             {"version", no_argument, &opt_val, 1},
             {nullptr, 0, nullptr, 0}
         };
-        while ((opt_char = getopt_long(argc, argv, "h", long_options, nullptr)) != -1) {
+        while ((opt_char = getopt_long(argc, argv, "ah", long_options, nullptr)) != -1) {
             std::string arg {optarg ? optarg : ""};
             switch (opt_char) {
                 case 0: {
@@ -34,6 +36,9 @@ int main(int argc, char* argv[]) {
                     }
                     break;
                 }
+                case 'a':
+                    all = true;
+                    break;
                 case 'h':
                     print_help();
                     return EXIT_SUCCESS;
@@ -52,15 +57,14 @@ int main(int argc, char* argv[]) {
             }
         }
         sc::requester req;
-        std::istringstream text {req.get("https://gitlab.com/gitlab-org/gitlab-foss/-/raw/master/CHANGELOG.md")};
-        std::string line;
-        for (size_t i = 0; i < 5; ++i) {
-            std::getline(text, line);
-        }
-        std::regex pat {R"(\d+\.\d+\.\d+)"};
-        std::smatch match;
-        if (std::regex_search(line, match, pat)) {
-            std::cout << match[0] << '\n';
+        std::string text {req.get("https://gitlab.com/gitlab-org/gitlab-foss/-/raw/master/CHANGELOG.md")};
+        std::regex pat {R"(##\s+(\d+\.\d+\.\d+)\s+\((\d+-\d+-\d+))"};
+        std::sregex_iterator beg {text.begin(), text.end(), pat};
+        std::sregex_iterator end {};
+        for (std::sregex_iterator i = beg; i != end; ++i) {
+            std::smatch match {*i};
+            std::cout << match[1] << " [" << match[2] << "]\n";
+            if (!all) break;
         }
     } catch (const std::exception& ex) {
         std::cerr << "gitlabvers: " << ex.what() << '\n';