seq: Port to LibMain

2 files changed, 19 insertions, 22 deletions

diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 66d033bb90..8d62b432f4 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -178,6 +178,7 @@ target_link_libraries(rev LibMain)
 target_link_libraries(rm LibMain)
 target_link_libraries(rmdir LibMain)
 target_link_libraries(run-tests LibRegex LibCoredump LibMain)
+target_link_libraries(seq LibMain)
 target_link_libraries(shot LibGUI LibMain)
 target_link_libraries(shuf LibMain)
 target_link_libraries(shutdown LibMain)
diff --git a/Userland/Utilities/seq.cpp b/Userland/Utilities/seq.cpp
index 848ab49bc9..72367a9d3c 100644
--- a/Userland/Utilities/seq.cpp
+++ b/Userland/Utilities/seq.cpp
@@ -6,10 +6,11 @@
 
 #include <AK/Format.h>
 #include <AK/StdLibExtras.h>
+#include <LibCore/System.h>
+#include <LibMain/Main.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
 const char* const g_usage = R"(Usage:
     seq [-h|--help]
@@ -40,19 +41,14 @@ static double get_double(const char* name, const char* d_string, int* number_of_
     return d;
 }
 
-int main(int argc, const char* argv[])
+ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
-    if (pledge("stdio", nullptr) < 0) {
-        perror("pledge");
-        return 1;
-    }
-    if (unveil(nullptr, nullptr) < 0) {
-        perror("unveil");
-        return 1;
-    }
+    TRY(Core::System::pledge("stdio"));
+    TRY(Core::System::unveil(nullptr, nullptr));
 
-    for (int i = 1; i < argc; i++) {
-        if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) {
+    for (size_t i = 1; i < arguments.strings.size(); i++) {
+        if (arguments.strings[i] == "--help"sv || arguments.strings[i] == "-h") {
+            out("HELP");
             print_usage(stdout);
             exit(0);
         }
@@ -60,32 +56,32 @@ int main(int argc, const char* argv[])
 
     double start = 1, step = 1, end = 1;
     int number_of_start_decimals = 0, number_of_step_decimals = 0, number_of_end_decimals = 0;
-    switch (argc) {
+    switch (arguments.strings.size()) {
     case 2:
-        end = get_double(argv[0], argv[1], &number_of_end_decimals);
+        end = get_double(arguments.argv[0], arguments.argv[1], &number_of_end_decimals);
         break;
     case 3:
-        start = get_double(argv[0], argv[1], &number_of_start_decimals);
-        end = get_double(argv[0], argv[2], &number_of_end_decimals);
+        start = get_double(arguments.argv[0], arguments.argv[1], &number_of_start_decimals);
+        end = get_double(arguments.argv[0], arguments.argv[2], &number_of_end_decimals);
         break;
     case 4:
-        start = get_double(argv[0], argv[1], &number_of_start_decimals);
-        step = get_double(argv[0], argv[2], &number_of_step_decimals);
-        end = get_double(argv[0], argv[3], &number_of_end_decimals);
+        start = get_double(arguments.argv[0], arguments.argv[1], &number_of_start_decimals);
+        step = get_double(arguments.argv[0], arguments.argv[2], &number_of_step_decimals);
+        end = get_double(arguments.argv[0], arguments.argv[3], &number_of_end_decimals);
         break;
     default:
-        warnln("{}: unexpected number of arguments", argv[0]);
+        warnln("{}: unexpected number of arguments", arguments.argv[0]);
         print_usage(stderr);
         return 1;
     }
 
     if (step == 0) {
-        warnln("{}: increment must not be 0", argv[0]);
+        warnln("{}: increment must not be 0", arguments.argv[0]);
         return 1;
     }
 
     if (__builtin_isnan(start) || __builtin_isnan(step) || __builtin_isnan(end)) {
-        warnln("{}: start, step, and end must not be NaN", argv[0]);
+        warnln("{}: start, step, and end must not be NaN", arguments.argv[0]);
         return 1;
     }