Start organizing platform-specific Python code

This starts to split platform-specific Python code into its own module,
which should help to tidy up our mach commands and make things more
reusable.

1 files changed, 34 insertions, 0 deletions

diff --git a/python/servo/platform/base.py b/python/servo/platform/base.py
new file mode 100644
index 00000000000..316c998b1db
--- /dev/null
+++ b/python/servo/platform/base.py
@@ -0,0 +1,34 @@
+# Copyright 2023 The Servo Project Developers. See the COPYRIGHT
+# file at the top-level directory of this distribution.
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+import subprocess
+
+
+class Base:
+    def _platform_bootstrap(self, _cache_dir: str, _force: bool) -> bool:
+        raise NotImplementedError("Bootstrap installation detection not yet available.")
+
+    def _platform_bootstrap_gstreamer(self, _cache_dir: str, _force: bool) -> bool:
+        raise NotImplementedError("GStreamer bootstrap support is not yet available for your OS.")
+
+    def _platform_is_gstreamer_installed(self) -> bool:
+        return subprocess.call(
+            ["pkg-config", "--atleast-version=1.16", "gstreamer-1.0"],
+            stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0
+
+    def bootstrap(self, cache_dir: str, force: bool):
+        if not self._platform_bootstrap(cache_dir, force):
+            print("Dependencies were already installed!")
+
+    def bootstrap_gstreamer(self, cache_dir: str, force: bool):
+        if not self._platform_bootstrap_gstreamer(cache_dir, force):
+            print("Dependencies were already installed!")
+
+    def is_gstreamer_installed(self) -> bool:
+        return self._platform_is_gstreamer_installed()