feat: launch arg to start logged in as a supplied user (#5626)

CHANGELOG.md

@@ -31,6 +31,7 @@
 - Minor: Removed experimental IRC support. (#5547)
 - Minor: Moderators can now see which mods start and cancel raids. (#5563)
 - Minor: The emote popup now reloads when Twitch emotes are reloaded. (#5580)
+- Minor: Added `--login <username>` CLI argument to specify which account to start logged in as. (#5626)
 - Bugfix: Fixed tab move animation occasionally failing to start after closing a tab. (#5426, #5612)
 - Bugfix: If a network request errors with 200 OK, Qt's error code is now reported instead of the HTTP status. (#5378)
 - Bugfix: Fixed restricted users usernames not being clickable. (#5405)

src/common/Args.cpp

@@ -117,6 +117,13 @@ Args::Args(const QApplication &app, const Paths &paths)
         "safe-mode", "Starts Chatterino without loading Plugins and always "
                      "show the settings button.");
 
+    QCommandLineOption loginOption(
+        "login",
+        "Starts Chatterino logged in as the account matching the supplied "
+        "username. If the supplied username does not match any account "
+        "Chatterino starts logged in as anonymous.",
+        "username");
+
     // Channel layout
     auto channelLayout = QCommandLineOption(
         {"c", "channels"},
@@ -142,6 +149,7 @@ Args::Args(const QApplication &app, const Paths &paths)
         parentWindowIdOption,
         verboseOption,
         safeModeOption,
+        loginOption,
         channelLayout,
         activateOption,
     });
@@ -197,6 +205,11 @@ Args::Args(const QApplication &app, const Paths &paths)
         this->safeMode = true;
     }
 
+    if (parser.isSet(loginOption))
+    {
+        this->initialLogin = parser.value(loginOption);
+    }
+
     if (parser.isSet(activateOption))
     {
         this->activateChannel =
@@ -206,6 +219,7 @@ Args::Args(const QApplication &app, const Paths &paths)
     this->currentArguments_ = extractCommandLine(parser, {
                                                              verboseOption,
                                                              safeModeOption,
+                                                             loginOption,
                                                              channelLayout,
                                                              activateOption,
                                                          });

src/common/Args.hpp

@@ -60,6 +60,7 @@ public:
     bool dontLoadMainWindow{};
     std::optional<WindowLayout> customChannelLayout;
     std::optional<Channel> activateChannel;
+    std::optional<QString> initialLogin;
     bool verbose{};
     bool safeMode{};
 

src/providers/twitch/TwitchAccountManager.cpp

@@ -1,5 +1,7 @@
 #include "providers/twitch/TwitchAccountManager.hpp"
 
+#include "Application.hpp"
+#include "common/Args.hpp"
 #include "common/Common.hpp"
 #include "common/QLogging.hpp"
 #include "providers/twitch/api/Helix.hpp"
@@ -144,6 +146,11 @@ void TwitchAccountManager::reloadUsers()
 
 void TwitchAccountManager::load()
 {
+    if (getApp()->getArgs().initialLogin.has_value())
+    {
+        this->currentUsername = getApp()->getArgs().initialLogin.value();
+    }
+
     this->reloadUsers();
 
     this->currentUsername.connect([this](const QString &newUsername) {