/bin/twnbuild: python based build solution

.gitignore

@@ -2,6 +2,7 @@
 *
 !*.*
 !*/
+!bin/*
 !Makefile
 
 **/*.exe

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

bin/build.sh

@@ -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

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}"

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)