Implements AcademySoftwareFoundation#442 - Adds build_requires and pr…

…ivate_build_requires options to rez-depends

src/rez/cli/depends.py

@@ -10,6 +10,12 @@ def setup_parser(parser, completions=False):
     parser.add_argument(
         "--paths", type=str, default=None,
         help="set package search path")
+    parser.add_argument(
+        "-b", "--build-requires", action="store_true", default=False,
+        help="Include build_requires")
+    parser.add_argument(
+        "-p", "--private-build-requires", action="store_true", default=False,
+        help="Include private_build_requires")
     parser.add_argument(
         "-g", "--graph", action="store_true",
         help="display the dependency tree as an image")
@@ -51,7 +57,9 @@ def command(opts, parser, extra_arg_groups=None):
     pkgs_list, g = get_reverse_dependency_tree(
         package_name=opts.PKG,
         depth=opts.depth,
-        paths=pkg_paths)
+        paths=pkg_paths,
+        build_requires=opts.build_requires,
+        private_build_requires=opts.private_build_requires)
 
     if opts.graph or opts.print_graph or opts.write_graph:
         gstr = write_dot(g)

src/rez/package_search.py

@@ -15,7 +15,9 @@
 from rez.utils.formatting import PackageRequest
 
 
-def get_reverse_dependency_tree(package_name, depth=None, paths=None):
+def get_reverse_dependency_tree(package_name, depth=None, paths=None,
+                                build_requires=False,
+                                private_build_requires=False):
     """Find packages that depend on the given package.
 
     This is a reverse dependency lookup. A tree is constructed, showing what
@@ -60,7 +62,15 @@ def get_reverse_dependency_tree(package_name, depth=None, paths=None):
             continue
 
         pkg = max(packages, key=lambda x: x.version)
-        requires = set(pkg.requires or [])
+        requires = []
+        if not build_requires and not private_build_requires:
+            requires = pkg.requires or []
+        else:
+            for variant in pkg.iter_variants():
+                requires += variant.get_requires(build_requires, private_build_requires)
+
+        requires = set(requires)
+
         for req_list in (pkg.variants or []):
             requires.update(req_list)