Use implicit Verilator lint log name

Internal-tag: [#68242]
Signed-off-by: Maciej Kurc <[email protected]>

verilator/defs.bzl

@@ -543,18 +543,14 @@ def _verilator_lint(ctx):
     args, vlog_srcs, vlog_hdrs, runfiles = _verilator_args(ctx, srcs, vopts)
 
     # Capture stderr to the log file
+    log_file = ctx.actions.declare_file(ctx.label.name + ".log")
+
     args.add("--stderr")
-    if ctx.outputs.log:
-        args.add(ctx.outputs.log.path)
-        outputs = [ctx.outputs.log]
-    else:
-        log_file = ctx.actions.declare_file(ctx.label.name + ".log")
-        args.add(log_file.path)
-        outputs = [log_file]
+    args.add(log_file.path)
 
     # Run
     ctx.actions.run(
-        outputs = outputs,
+        outputs = [log_file],
         inputs = vlog_srcs + vlog_hdrs,
         tools = [verilator_toolchain.all_files, ctx.executable._run_wrapper],
         env = _verilator_toolchain_env(verilator_toolchain),
@@ -565,16 +561,13 @@ def _verilator_lint(ctx):
     )
 
     return DefaultInfo(
-        files = depset(outputs),
+        files = depset([log_file]),
         runfiles = ctx.runfiles(files = vlog_srcs + vlog_hdrs),
     )
 
 verilator_lint = rule(
     implementation = _verilator_lint,
     attrs = {
-        "log": attr.output(
-            doc = "Name of the output log file. Defaults to '<name>.log'",
-        ),
         "module": attr.label(
             doc = "The top level module target to verilate.",
             providers = [VerilogInfo],

verilator/tests/BUILD

@@ -174,7 +174,6 @@ verilator_run(
 
 verilator_lint(
     name = "nested_module_2_verilator_lint",
-    log = "lint.log",
     module = ":nested_module_2",
     vopts = [
         "-Wall",