From 64c2f1ef70fdab5a14c3625144a58cddc5fccdee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Xenxo=20Espasand=C3=ADn?= <xensik@pm.me>
Date: Tue, 13 Jun 2023 15:40:54 +0200
Subject: [PATCH] maint(build): new version system (#129)

---
 .gitignore        |  4 +++
 deps/zlib.lua     |  4 +++
 premake5.lua      | 65 ++++++++++++++++++++++++++++++++++++++++++++---
 src/tool/main.cpp |  8 ++++++
 4 files changed, 78 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 679bdf98..c106cf87 100644
--- a/.gitignore
+++ b/.gitignore
@@ -149,6 +149,7 @@ user*.bat
 # VScode
 .vscode/
 
+# Output folders
 renamed/
 parsed/
 compiled/
@@ -157,3 +158,6 @@ assembled/
 disassembled/
 
 data/*
+
+# Version file
+include/xsk/version.hpp
diff --git a/deps/zlib.lua b/deps/zlib.lua
index c2edca24..9b3c893f 100644
--- a/deps/zlib.lua
+++ b/deps/zlib.lua
@@ -29,6 +29,10 @@ function zlib:project()
         "_CRT_NONSTDC_NO_DEPRECATE",
         "_CRT_SECURE_NO_DEPRECATE",
     }
+
+    if os.istarget("darwin") then
+        defines "HAVE_UNISTD_H"
+    end
 end
 
 table.insert(dependencies, zlib)
diff --git a/premake5.lua b/premake5.lua
index a7a82c3a..bed1213f 100644
--- a/premake5.lua
+++ b/premake5.lua
@@ -1,3 +1,6 @@
+-------------------------------------------------
+-- DEPENDENCIES
+-------------------------------------------------
 dependencies = { base = path.getrelative(os.getcwd(), path.getabsolute("deps")) }
 
 function dependencies.load()
@@ -11,6 +14,62 @@ function dependencies.load()
 end
 
 dependencies.load()
+
+-------------------------------------------------
+-- VERSIONING
+-------------------------------------------------
+function version_split(version, revision)
+    array = {}
+
+    for num in string.gmatch(version or "", "%d+") do
+        if #array < 3 then
+            table.insert(array, tonumber(num))
+        end
+    end
+
+    while #array < 3 do
+        table.insert(array, 0)
+    end
+
+    table.insert(array, tonumber(revision))
+
+    return array
+end
+
+function generate_version()
+    -- get current version
+    local proc1 = assert(io.popen("git describe --tags --abbrev=0", "r"))
+    local version = assert(proc1:read('*a')):gsub("%s+", "")
+    proc1:close()
+
+    -- get current branch
+    local proc2 = assert(io.popen("git symbolic-ref -q --short HEAD", "r"))
+    local branch = assert(proc2:read('*a')):gsub("%s+", "")
+    proc2:close()
+
+    -- get revision number
+    local proc3 = assert(io.popen("git rev-list --count HEAD", "r"))
+    local revision = assert(proc3:read("*a")):gsub("%s+", "")
+    proc3:close()
+
+    local split = version_split(version, revision)
+    local verstr = split[1] .. "." .. split[2] .. "." .. split[3] .. "." .. split[4] .. "-" .. branch
+
+    local file = assert(io.open("include/xsk/version.hpp", "w"))
+    file:write("// Generated by premake - do not edit\n\n")
+    file:write("#define XSK_VERSION_MAJOR  " .. split[1] .. "\n")
+    file:write("#define XSK_VERSION_MINOR  " .. split[2] .. "\n")
+    file:write("#define XSK_VERSION_PATCH  " .. split[3] .. "\n")
+    file:write("#define XSK_VERSION_BUILD  " .. split[4] .. "\n")
+    file:write("#define XSK_VERSION_BRANCH \"" .. branch .. "\"\n")
+    file:write("#define XSK_VERSION_STR    \"" .. verstr .. "\"\n")
+    file:close()
+end
+
+generate_version()
+
+-------------------------------------------------
+-- PROJECTS
 -------------------------------------------------
 workspace "gsc-tool"
     startproject "xsk-tool"
@@ -40,7 +99,7 @@ workspace "gsc-tool"
     filter {}
 
     filter { "language:C++", "toolset:not msc*" }
-	    buildoptions "-std=c++20"
+        buildoptions "-std=c++20"
     filter {}
 
     filter "toolset:msc*"
@@ -50,11 +109,11 @@ workspace "gsc-tool"
     filter {}
 
     filter { "system:windows" }
-	    systemversion "latest"
+        systemversion "latest"
     filter {}
 
     filter { "system:macosx" }
-	    systemversion "12.0"
+        systemversion "12.0"
     filter {}
 
     symbols "On"
diff --git a/src/tool/main.cpp b/src/tool/main.cpp
index 02c8f37b..a6052e05 100644
--- a/src/tool/main.cpp
+++ b/src/tool/main.cpp
@@ -30,6 +30,7 @@
 #include "xsk/arc/engine/t7.hpp"
 #include "xsk/arc/engine/t8.hpp"
 #include "xsk/arc/engine/t9.hpp"
+#include "xsk/version.hpp"
 
 namespace fs = std::filesystem;
 
@@ -1017,6 +1018,11 @@ auto print_usage() -> void
     std::cin.get();
 }
 
+auto branding() -> void
+{
+    std::cout << fmt::format("\nGSC Tool {} created by xensik\n\n", XSK_VERSION_STR);
+}
+
 auto main(u32 argc, char** argv) -> void
 {
     auto path = fs::path{};
@@ -1024,6 +1030,8 @@ auto main(u32 argc, char** argv) -> void
     auto game = game::_;
     auto mach = mach::_;
 
+    branding();
+
     if (!parse_flags(argc, argv, mode, game, mach, path))
     {
         return print_usage();