chore: update rules_multirun

Use the new features Keith added!

MODULE.bazel

@@ -14,14 +14,7 @@ bazel_dep(name = "aspect_bazel_lib", version = "1.38.0")
 bazel_dep(name = "aspect_rules_js", version = "1.33.1")
 bazel_dep(name = "bazel_skylib", version = "1.4.2")
 bazel_dep(name = "platforms", version = "0.0.7")
-bazel_dep(name = "rules_multirun", version = "0.6.1")
-
-# Needed in the root module to get bzl_library targets. Remove after next release.
-git_override(
-    module_name = "rules_multirun",
-    commit = "9cca5f28c4a10107c91f9fbd5aba48d48122a054",
-    remote = "https://github.com/keith/rules_multirun.git",
-)
+bazel_dep(name = "rules_multirun", version = "0.7.0")
 
 # Needed in the root because we dereference ProtoInfo in our aspect impl
 bazel_dep(name = "rules_proto", version = "5.3.0-21.7")

example/WORKSPACE.bazel

@@ -200,9 +200,9 @@ pinned_maven_install()
 
 http_archive(
     name = "rules_multirun",
-    sha256 = "9cd384e42b2da00104f0e18f25e66285aa21f64b573c667638a7a213206885ab",
-    strip_prefix = "rules_multirun-0.6.1",
-    url = "https://github.com/keith/rules_multirun/archive/refs/tags/0.6.1.tar.gz",
+    sha256 = "7b699b3922919d727e7f5aa868286e59cc69fa6aa14f6c3e54a4674010bd1582",
+    strip_prefix = "rules_multirun-0.7.0",
+    url = "https://github.com/keith/rules_multirun/releases/download/0.7.0/rules_multirun-0.7.0.tar.gz",
 )
 
 # Use whichever formatter binaries you need:

format/defs.bzl

@@ -70,16 +70,13 @@ def format_multirun(name, **kwargs):
         if lang_attribute not in kwargs.keys():
             continue
 
-        # Target name should be human-readable since multirun 'print_targets' will echo it, e.g.
-        # Running @@//tools/format:format_Protocol_Buffer_with_buf
-        # Ideally multirun could print a message like "Formatting Protocol Buffer with Buf", see
-        # https://github.com/keith/rules_multirun/issues/31
-        target_name = "_".join([name, lang.replace(" ", "_"), "with", toolname])
+        target_name = "_".join([name, lang.replace(" ", "_")])
 
         for mode in ["check", "fix"]:
             command(
                 name = target_name + (".check" if mode == "check" else ""),
                 command = "@aspect_rules_lint//format/private:format",
+                description = "Formatting {} with {}".format(lang, toolname),
                 environment = {
                     # NB: can't use str(Label(target_name)) here because bzlmod makes it
                     # the apparent repository, starts with @@aspect_rules_lint~override
@@ -101,9 +98,8 @@ def format_multirun(name, **kwargs):
     multirun(
         name = name,
         commands = commands,
-        # Run sequentially for now, see
-        # https://github.com/keith/rules_multirun/issues/32
-        jobs = 1,
+        # Run up to 4 formatters at the same time. This is an arbitrary choice, based on some idea that 4-core machines are typical.
+        jobs = 4,
     )
 
     multirun(