From 96b6b7e70b19550637ff9e369961b780a4d842a8 Mon Sep 17 00:00:00 2001
From: veclavtalica <veclavtalica@tutamail.com>
Date: Sun, 2 Feb 2025 23:08:02 +0300
Subject: [PATCH] /bin/twnbuild: python based build solution

---
 .gitignore                       |  1 +
 apps/templates/lua/data/twn.toml |  1 +
 bin/build.sh                     | 19 -----------------
 bin/twn                          |  2 +-
 bin/twnbuild                     | 36 ++++++++++++++++++++++++++++++++
 5 files changed, 39 insertions(+), 20 deletions(-)
 delete mode 100755 bin/build.sh
 create mode 100755 bin/twnbuild

diff --git a/.gitignore b/.gitignore
index f3c5d5f..c1adf2e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 *
 !*.*
 !*/
+!bin/*
 !Makefile
 
 **/*.exe
diff --git a/apps/templates/lua/data/twn.toml b/apps/templates/lua/data/twn.toml
index 2752b58..60d96ab 100644
--- a/apps/templates/lua/data/twn.toml
+++ b/apps/templates/lua/data/twn.toml
@@ -14,6 +14,7 @@ dev_id = "you"
 # Game runtime details
 [game]
 resolution = [ 640, 480 ]
+interpreter = "$TWNROOT/apps/twnlua"
 #debug = true
 
 # Engine tweaks. You probably don't need to change these
diff --git a/bin/build.sh b/bin/build.sh
deleted file mode 100755
index f1d8631..0000000
--- a/bin/build.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/env sh
-
-set +e
-
-# check whether ninja is around (you better start running)
-if [ -x "$(command -v ninja)" ]; then
-    generator="-G Ninja"
-fi
-
-# check whether clang is around (it's just better)
-if [ -x "$(command -v clang)" ]; then
-    cc="-DCMAKE_C_COMPILER=clang"
-fi
-
-if [ "$1" = "web" ]; then
-    emcmake cmake $generator $cc -B build-web "${@:2}" && cmake --build build-web --parallel
-else
-    cmake $generator $cc -B build "$@" && cmake --build build --parallel
-fi
diff --git a/bin/twn b/bin/twn
index c6e5c1d..ff84af8 100755
--- a/bin/twn
+++ b/bin/twn
@@ -8,7 +8,7 @@ toolpath="$(dirname -- "${BASH_SOURCE[0]}")"
 export TWNROOT=$(realpath "$toolpath"/../)
 
 case "$1" in
-    build    ) "$toolpath"/build.sh "${@:2}"
+    build    ) "$toolpath"/twnbuild "${@:2}"
                ;;
 
     run      ) $0 build && ./$exe "${@:2}"
diff --git a/bin/twnbuild b/bin/twnbuild
new file mode 100755
index 0000000..5821e74
--- /dev/null
+++ b/bin/twnbuild
@@ -0,0 +1,36 @@
+#!/bin/env python3
+
+from subprocess import getoutput, run
+from os.path import expandvars
+from pathlib import Path
+from sys import argv
+import tomllib
+
+has_ninja = getoutput("command -v ninja") != ""
+has_clang = getoutput("command -v clang") != ""
+
+#TODO: support for default pack override
+
+cmake = ["cmake"]
+# check whether clang is around (it's just better)
+if has_clang:
+    cmake += ["-DCMAKE_C_COMPILER=clang"]
+# check whether ninja is around (you better start running)
+if has_ninja:
+    cmake += ["-G", "Ninja"]
+cmake += ["-B", "build"]
+# TODO: have it --fast instead, where separate --no-debug would mean stripping the debug info
+if "--release" in argv:
+    cmake += ["-DCMAKE_BUILD_TYPE=Release"]
+# pass arbitrary arguments over
+if "--" in argv:
+    cmake += argv[argv.find("--"):]
+
+# if no root cmake file is present, infer it from `twn.toml:game.interpreter`
+if not Path("CMakeLists.txt").is_file():
+    with open("data/twn.toml", "rb") as f:
+        config = tomllib.load(f)
+        cmake += ["-S", expandvars(config["game"]["interpreter"])]
+
+run(cmake, check=True)
+run(["cmake", "--build", "build", "--parallel"], check=True)