allow system packages to vary by distro

Summary: The system packages necessary on linux can vary even within .deb or .rpm space.  Add a getdeps.py feature to allow this, and use it in boost to mark that only centos_stream 8 has/needs the special boost169 packages

Reviewed By: HarveyHunt

Differential Revision: D32987046

fbshipit-source-id: 37f771159128e3a61fe4d6bb3d1444e95efd8a62

build/fbcode_builder/getdeps/manifest.py

@@ -110,6 +110,8 @@ ALLOWED_EXPR_SECTIONS = [
     "download",
     "git",
     "install.files",
+    "rpms",
+    "debs",
 ]
 
 

build/fbcode_builder/manifests/boost

@@ -15,7 +15,7 @@ BOOST_ROOT_1_69_0
 [debs]
 libboost-all-dev
 
-[rpms]
+[rpms.all(distro=centos_stream,distro_vers=8)]
 boost169
 boost169-math
 boost169-test
@@ -48,6 +48,9 @@ boost169-python3
 boost169-serialization
 boost169-program-options
 
+[rpms.not(all(distro=centos_stream,distro_vers=8))]
+boost-devel
+
 [build]
 builder = boost