Add recipe support.

recipes/GitBranch/recipe.py

@@ -0,0 +1,26 @@
+
+from git import Repo
+from git.exc import GitError
+import hashlib
+import os
+from SCons.Script import *
+
+def cook(env: Environment, repo_name: str, remote_url: str, git_ref: str = "main") -> dict:
+    repo_dir = os.path.join(env['CLONE_DIR'], 'git', repo_name, '_bare')
+    try:
+        repo = Repo(repo_dir)
+        origin = repo.remotes['origin']
+    except GitError:
+        print(f'Initializing git repository for SDL at {repo_dir}.')
+        repo = Repo.init(repo_dir, bare=True)
+        origin = repo.create_remote('origin', remote_url)
+    worktree_dir = os.path.join(env['CLONE_DIR'], 'git', repo_name, hashlib.shake_128(git_ref.encode('utf-8')).hexdigest(6)) # TODO: commit hash would be better, right?
+    if not os.path.exists(worktree_dir):
+        print(f'Checking out into {worktree_dir}.')
+        origin.fetch()
+        os.makedirs(worktree_dir)
+        repo.git.worktree('add', worktree_dir, git_ref)
+    return {
+        'checkout_root': worktree_dir
+    }
+

recipes/SDL/recipe.py

@@ -0,0 +1,40 @@
+
+import os
+import subprocess
+import sys
+from SCons.Script import *
+
+def cook(env: Environment, git_ref: str = "main") -> dict:
+    repo = env.Cook('GitBranch', repo_name = 'SDL', remote_url = 'https://github.com/libsdl-org/SDL.git', git_ref = git_ref)
+    checkout_root = repo['checkout_root']
+
+    config = env['BUILD_TYPE']
+    build_dir = os.path.join(checkout_root, f'build_{config}')
+    install_dir = os.path.join(checkout_root, f'install_{config}')
+    lib_fname = {
+        'debug': 'libSDL2d.a'
+    }.get(env['BUILD_TYPE'], 'libSDL2.a') # TODO: who cares about windows?
+    is_built = os.path.exists(os.path.join(build_dir, lib_fname)) # TODO!
+    if not is_built:
+        print(f'Building SDL, config {config}')
+        os.makedirs(build_dir, exist_ok=True)
+        build_type = {
+            'debug': 'Debug',
+            'release_debug': 'RelWithDebInfo',
+            'release': 'Release',
+            'profile': 'RelWithDebInfo'
+        }.get(env['BUILD_TYPE'], 'RelWithDebInfo')
+        subprocess.run(('cmake', '-G', 'Ninja', '-B', build_dir, f'-DCMAKE_BUILD_TYPE={build_type}', '-DSDL_STATIC=ON', '-DSDL_SHARED=OFF', f'-DCMAKE_INSTALL_PREFIX={install_dir}', checkout_root), stdout=sys.stdout, stderr=sys.stderr, check=True)
+        subprocess.run(('cmake', '--build', build_dir), stdout=sys.stdout, stderr=sys.stderr, check=True)
+        subprocess.run(('cmake', '--install', build_dir), stdout=sys.stdout, stderr=sys.stderr, check=True)
+    
+
+    lib_name = {
+        'debug': 'SDL2d'
+    }.get(env['BUILD_TYPE'], 'SDL2')
+    return {
+        'LIBPATH': [os.path.join(install_dir, 'lib')],
+        'CPPPATH': [os.path.join(install_dir, 'include')],
+        'LIBS': [lib_name, 'm']
+    }
+

recipes/VulkanHeaders/recipe.py

@@ -0,0 +1,9 @@
+
+import os
+from SCons.Script import *
+
+def cook(env: Environment, git_ref: str = "main") -> dict:
+    repo = env.Cook('GitBranch', repo_name = 'VulkanHeaders', remote_url = 'https://github.com/KhronosGroup/Vulkan-Headers.git', git_ref = git_ref)
+    checkout_root = repo['checkout_root']
+    env.Append(CPPPATH = [os.path.join(checkout_root, 'include')])
+    return {}

recipes/mijin/recipe.py

@@ -0,0 +1,8 @@
+
+import os
+from SCons.Script import *
+
+def cook(env: Environment, git_ref: str = "master") -> dict:
+    repo = env.Cook('GitBranch', repo_name = 'mijin', remote_url = 'ssh://git@git.mewin.de:10022/mewin/mijin2.git', git_ref = git_ref)
+    checkout_root = repo['checkout_root']
+    return SConscript(os.path.join(checkout_root, 'LibConf'), exports = ['env'])