feat: support bazel path-mapping

Author: jbedard

ts/private/ts_project.bzl

@@ -123,7 +123,9 @@ def _ts_project_impl(ctx):
 
     typecheck_outs = []
 
-    execution_requirements = {}
+    execution_requirements = {
+        "supports-path-mapping": "1",
+    }
     executable = ctx.executable.tsc
 
     supports_workers = options.supports_workers

ts/private/ts_proto_library.bzl

@@ -131,6 +131,9 @@ def _protoc_action(ctx, proto_info, outputs):
         ),
         env = {"BAZEL_BINDIR": ctx.bin_dir.path},
         use_default_shell_env = True,
+        execution_requirements = {
+            "supports-path-mapping": "1",
+        },
     )
 
 def _declare_outs(ctx, info, ext):

ts/private/ts_validate_options.bzl

@@ -45,6 +45,9 @@ Assumes all tsconfig file deps are already copied to the bin directory.
         env = {
             "BAZEL_BINDIR": ctx.bin_dir.path,
         },
+        execution_requirements = {
+            "supports-path-mapping": "1",
+        },
         use_default_shell_env = True,
     )