Nobody expects the Ziguanas (#517)

* Add build.zig, remove makefile, add .idea directory to .gitignore

* Remove submodules, add projects directly

* Remove submodules

* Add projects

* Rename sub/ to dep/, remove makefiles

* Rewrite main.c

* Remove Argoat dependency

* Remove unused dependencies

* Rewrite config.c

* Add files

* Change default fg to 8 in config.ini

* Partially rewrite utils.c

* Use Zig package manager

* Rewrite INPUTS enum in Zig

* Commit unfinished full rewrite (Zig 0.11.0)
What needs to be dealt with:
- Matrix animation
- Authentication part
- Testing on actual TTY (not just virtual console)

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Implement more (untested) authentication code

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Fix some bugs (hopefully)

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Try to fix some more bugs

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Oops, forgot to allocate hehe

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Changes in the Zig rewrite (#596)

* Everything

* make matrix.zig a bit cleaner

* make long lines shorter and add changelog

* vi mode

* update changelog

* get errors from child process and (hopefully) fix some other things

* fix utmp entry

* run authentication in a child process

* update changelog

* small code improvements

* change that

* clear terminal on SIGTERM

* Remove LogFile

* moved ini to a lib, fixed alternative langs

* fix logging out

* oops

* code improvements

* consistency

* clearing the env isn't needed anymore (afaik)

* replace vi_mode with a bool

* type aliases, avoiding zeroes(), breaking a long line

* lowercase insert/normal, merge conditionals, code improvements

* Add experimental save file migrator + bug fixes + add "-dev" version suffix

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Resolve conflicts

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Clean up when SIGTERM is received (#597)

* clean up child processes on SIGTERM

* small code improvement

* consistency.. i guess?

* Properly set XDG_CURRENT_DESKTOP

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Zig 0.12.0 and more! (#599)

* less alloc, update migrator, get DesktopNames from .desktop

* small cleanup

* Update zigini to improve compatibility with old config

* Code improvements

* Update to zig version 0.12.0

* Some fixes

* tiny changes

* remove useless comment

* migrator changes, and small things

* set XDG env vars differently

* free memory on error when appending environments

* Fix out of bounds issue when using the Delete key

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Update zig-ini to fix configuration issue (#603)

* Mention display-manager-init for Gentoo/OpenRC in readme.md

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Tidy up readme.md

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Fix authentication in a few edge cases (#604)

* fix loginConv and auth

* fix potential mem leak with configs

* BIG changes

---------

Signed-off-by: AnErrupTion <anerruption@disroot.org>
Co-authored-by: アシュ <120780645+Kawaii-Ash@users.noreply.github.com>

src/config/migrator.zig

@@ -0,0 +1,30 @@
+const std = @import("std");
+const ini = @import("zigini");
+const Save = @import("Save.zig");
+
+pub fn tryMigrateSaveFile(user_buf: *[32]u8, path: []const u8) Save {
+    var save = Save{};
+
+    var file = std.fs.openFileAbsolute(path, .{}) catch return save;
+    defer file.close();
+
+    const reader = file.reader();
+
+    var user_fbs = std.io.fixedBufferStream(user_buf);
+    reader.streamUntilDelimiter(user_fbs.writer(), '\n', 32) catch return save;
+    const user = user_fbs.getWritten();
+    if (user.len > 0) save.user = user;
+
+    var session_buf: [20]u8 = undefined;
+    var session_fbs = std.io.fixedBufferStream(&session_buf);
+    reader.streamUntilDelimiter(session_fbs.writer(), '\n', 20) catch {};
+
+    const session_index_str = session_fbs.getWritten();
+    var session_index: ?u64 = null;
+    if (session_index_str.len > 0) {
+        session_index = std.fmt.parseUnsigned(u64, session_index_str, 10) catch return save;
+    }
+    save.session_index = session_index;
+
+    return save;
+}