Update to new recipe system (S++ 2.0).

recipes/libpng/recipe.py

@@ -2,34 +2,27 @@
 import re
 from SCons.Script import *
 
-_REPO_NAME = 'libpng'
-_REPO_URL = 'https://git.code.sf.net/p/libpng/code.git'
-_TAG_PATTERN = re.compile(r'^v([0-9])+\.([0-9])+\.([0-9])$')
-
-def available(env: Environment) -> bool:
-    return hasattr(env, 'GitBranch') and hasattr(env, 'GitTags')
-
-def versions(env: Environment, update: bool = False) -> 'list[str]':
-    tags = env.GitTags(repo_name = _REPO_NAME, remote_url = _REPO_URL, force_fetch=update)
-    result = []
-    for tag in tags:
-        match = _TAG_PATTERN.match(tag)
-        if match:
-            result.append((int(match.groups()[0]), int(match.groups()[1]), int(match.groups()[2])))
-    return result
-
-def dependencies(env: Environment, version) -> 'list[dict]':
-    return {
-        'zlib': {}
-    }
-
-def cook(env: Environment, git_ref = 'master') -> dict:
-    lib_z = env.Cook('zlib')
-    repo = env.GitBranch(repo_name = 'libpng', remote_url = 'https://git.code.sf.net/p/libpng/code.git', git_ref = git_ref)
+def _git_cook(env: Environment, repo: dict) -> dict:
+    lib_zlib = env.Cook('zlib')
     checkout_root = repo['checkout_root']
-    build_result = env.AutotoolsProject(checkout_root)
+    build_result = env.CMakeProject(checkout_root, dependencies = [lib_zlib])
+    lib_name = {
+        'debug': 'png16d'
+    }.get(env['BUILD_TYPE'], 'png16')
     return {
         'CPPPATH': build_result['CPPPATH'],
-        'LIBS': [env.FindLib('png16', paths=build_result['LIBPATH'])],
-        'DEPENDENCIES': [lib_z]
+        'LIBS': [env.FindLib(lib_name, paths=build_result['LIBPATH'])]
     }
+
+
+env.GitRecipe(
+    globals = globals(),
+    repo_name = 'libpng',
+    repo_url = 'https://git.code.sf.net/p/libpng/code.git',
+    tag_pattern = re.compile(r'^v([0-9]+)\.([0-9]+)\.([0-9]+)$'),
+    tag_fn = lambda version: f'v{version[0]}.{version[1]}.{version[2]}',
+    cook_fn = _git_cook,
+    dependencies = {
+        'zlib': {}
+    }
+)