Update examples to use ctx.actions.args().

rules/actions_run/execute.bzl

@@ -9,13 +9,15 @@ the attribute "merge_tool".
 
 def _impl(ctx):
     # The list of arguments we pass to the script.
-    args = [ctx.outputs.out.path] + [f.path for f in ctx.files.chunks]
+    args = ctx.actions.args()
+    args.add(ctx.outputs.out)
+    args.add_all(ctx.files.chunks)
 
     # Action to call the script.
     ctx.actions.run(
         inputs = ctx.files.chunks,
         outputs = [ctx.outputs.out],
-        arguments = args,
+        arguments = [args],
         progress_message = "Merging into %s" % ctx.outputs.out.short_path,
         executable = ctx.executable.merge_tool,
     )

rules/computed_dependencies/hash.bzl

@@ -34,11 +34,14 @@ def _impl(ctx):
         processed = ctx.actions.declare_file(ctx.label.name + "_processed")
 
         # Run the selected binary
+        args = ctx.actions.args()
+        args.add(ctx.file.src)
+        args.add(processed)
         ctx.actions.run(
             outputs = [processed],
             inputs = [ctx.file.src],
             progress_message = "Apply filter '%s'" % ctx.attr.filter,
-            arguments = [ctx.file.src.path, processed.path],
+            arguments = [args],
             executable = ctx.executable._filter_bin,
         )
 
@@ -60,11 +63,15 @@ with open(sys.argv[2], 'w') as f:
 """,
     )
 
+    args = ctx.actions.args()
+    args.add(hasher)
+    args.add(processed)
+    args.add(out)
     ctx.actions.run(
         outputs = [out],
         inputs = [processed, hasher],
         executable = "python3",
-        arguments = [hasher.path, processed.path, out.path],
+        arguments = [args],
         mnemonic = "ComputeHash",
     )
 

rules/runfiles/tool.bzl

@@ -74,10 +74,12 @@ def _tool_user_impl(ctx):
     # are automatically added to the action.
     tool = ctx.executable.tool
 
+    args = ctx.actions.args()
+    args.add(my_out)
     ctx.actions.run(
         outputs = [my_out],
         executable = tool,
-        arguments = [my_out.path],
+        arguments = [args],
     )
 
     return [DefaultInfo(files = depset([my_out]))]

rules/shell_command/rules.bzl

@@ -60,10 +60,13 @@ def _convert_to_uppercase_impl(ctx):
     # Both the input and output files are specified by the BUILD file.
     in_file = ctx.file.input
     out_file = ctx.outputs.output
+    args = ctx.actions.args()
+    args.add(in_file)
+    args.add(out_file)
     ctx.actions.run_shell(
         outputs = [out_file],
         inputs = [in_file],
-        arguments = [in_file.path, out_file.path],
+        arguments = [args],
         command = "tr '[:lower:]' '[:upper:]' < \"$1\" > \"$2\"",
     )
     # No need to return anything telling Bazel to build `out_file` when

rust-examples/09-oci-container/README.md

@@ -133,14 +133,17 @@ def _build_sha265_tag_impl(ctx):
     # Both the input and output files are specified by the BUILD file.
     in_file = ctx.file.input
     out_file = ctx.outputs.output
+    args = ctx.actions.args()
+    args.add(in_file)
+    args.add(out_file)
 
     # No need to return anything telling Bazel to build `out_file` when
     # building this target -- It's implied because the output is declared
     # as an attribute rather than with `declare_file()`.
     ctx.actions.run_shell(
         inputs = [in_file],
         outputs = [out_file],
-        arguments = [in_file.path, out_file.path],
+        arguments = [args],
         command = "sed -n 's/.*sha256:\\([[:alnum:]]\\{7\\}\\).*/\\1/p' < \"$1\" > \"$2\"",
     )
 

rust-examples/09-oci-container/build/container.bzl

@@ -29,14 +29,17 @@ def _build_sha265_tag_impl(ctx):
     # Both the input and output files are specified by the BUILD file.
     in_file = ctx.file.input
     out_file = ctx.outputs.output
+    args = ctx.actions.args()
+    args.add(in_file)
+    args.add(out_file)
 
     # No need to return anything telling Bazel to build `out_file` when
     # building this target -- It's implied because the output is declared
     # as an attribute rather than with `declare_file()`.
     ctx.actions.run_shell(
         inputs = [in_file],
         outputs = [out_file],
-        arguments = [in_file.path, out_file.path],
+        arguments = [args],
         command = "sed -n 's/.*sha256:\\([[:alnum:]]\\{7\\}\\).*/\\1/p' < \"$1\" > \"$2\"",
     )