aedi: add target to download cmake binary package

aedi/target/__init__.py

@@ -107,5 +107,6 @@ def targets():
         # Special
         CleanAllTarget(),
         CleanDepsTarget(),
+        DownloadCMakeTarget(),
         TestDepsTarget(),
     )

aedi/target/special.py

@@ -18,6 +18,7 @@
 
 import os
 import shlex
+import shutil
 import subprocess
 
 from .base import Target, BuildTarget
@@ -50,6 +51,45 @@ class CleanDepsTarget(CleanAllTarget):
         self.args += (state.deps_path,)
 
 
+DOWNLOAD_CMAKE_TARGET_NAME = 'download-cmake'
+
+
+class DownloadCMakeTarget(Target):
+    def __init__(self, name=DOWNLOAD_CMAKE_TARGET_NAME):
+        super().__init__(name)
+
+    def build(self, state: BuildState):
+        probe_paths = (
+            '',
+            state.bin_path,
+            '/Applications/CMake.app/Contents/bin/',
+        )
+
+        for path in probe_paths:
+            try:
+                subprocess.run([path + 'cmake', '--version'], check=True)
+                return
+            except (FileNotFoundError, IOError, subprocess.CalledProcessError):
+                continue
+
+        cmake_version = '3.20.5'
+        cmake_basename = f'cmake-{cmake_version}-macos-universal'
+
+        state.download_source(
+            f'https://github.com/Kitware/CMake/releases/download/v{cmake_version}/{cmake_basename}.tar.gz',
+            '000828af55268853ba21b91f8ce3bfb9365aa72aee960fc7f0c01a71f3a2217a')
+
+        target_path = state.deps_path + 'cmake'
+        if os.path.exists(target_path):
+            shutil.rmtree(target_path)
+        os.makedirs(target_path)
+
+        source_path = state.source + 'CMake.app/Contents/'
+        shutil.move(source_path + 'bin', target_path)
+        shutil.move(source_path + 'share', target_path)
+        shutil.rmtree(state.source)
+
+
 class TestDepsTarget(BuildTarget):
     def __init__(self, name='test-deps'):
         super().__init__(name)

deps/.gitignore

@@ -55,6 +55,7 @@
 /webp/**/libwebpdemux.*
 
 # Tools
+/cmake/
 /nasm/bin/ndisasm
 /yasm/bin/vsyasm
 /yasm/bin/ytasm