Feat/engine incompatible dev dependency detection

.gitattributes

@@ -0,0 +1,3 @@
+# <<structuredmerge:git-drivers>> do not edit below this line
+*.rb diff=smorg-rb
+# <</structuredmerge:git-drivers>>

.github/tests/test_typed_core_workflow.py

@@ -59,9 +59,16 @@ def test_native_provider_is_packaged_from_candidate_and_required_before_export(s
         self.assertLess(build, verify)
         self.assertLess(package, verify)
         self.assertLess(verify, export)
-        self.assertEqual(steps[package]["working-directory"], "native-ruby/gems/psych-merge")
+        # Packaging walks the sibling closure from the candidate root, not from
+        # the single psych-merge directory: release-bumped checkouts pin sibling
+        # gems to versions the registry does not have yet.
+        self.assertEqual(steps[package]["working-directory"], "native-ruby")
+        self.assertIn("gems/psych-merge", steps[package]["run"])
         self.assertIn("core_parser_host.rb", steps[package]["run"])
+        self.assertIn("psych-provider-support", steps[package]["run"])
+        self.assertIn("dependency.type == :runtime", steps[package]["run"])
         self.assertEqual(steps[verify]["working-directory"], "kernel")
+        self.assertIn("--provider-support-dir tmp/psych-provider-support", steps[verify]["run"])
         self.assertNotIn("if", steps[verify])
         self.assertNotIn("continue-on-error", steps[verify])
         self.assertIn("set -euo pipefail", steps[verify]["run"])

.github/workflows/current.yml

@@ -235,20 +235,51 @@ jobs:
           cp ../../workspace-scripts/verify_core_ruby_export.rb ../../tmp/core-export/
           git -C ../.. rev-parse HEAD > ../../tmp/core-export/kernel-revision.txt
       - name: Package candidate Psych provider without publication
-        working-directory: native-ruby/gems/psych-merge
+        working-directory: native-ruby
         shell: bash
         run: |
           set -euo pipefail
           ulimit -c 0
-          mkdir -p "${GITHUB_WORKSPACE}/kernel/tmp/psych-provider"
+          provider_dir="${GITHUB_WORKSPACE}/kernel/tmp/psych-provider"
+          support_dir="${GITHUB_WORKSPACE}/kernel/tmp/psych-provider-support"
+          mkdir -p "${provider_dir}" "${support_dir}"
+          # Package the provider plus its candidate sibling closure. Sibling gems
+          # pin each other to the exact checkout version, which a release-bumped
+          # branch has not published yet; the kernel gate installs the closure
+          # from these archives into its isolated gem home and validates that it
+          # satisfies the provider's runtime requirements.
           ruby -rrubygems/package -e '
-            spec = Gem::Specification.load("psych-merge.gemspec")
-            abort "unexpected provider gem" unless spec && spec.name == "psych-merge"
-            abort "typed parser host missing" unless spec.files.include?("lib/psych/merge/core_parser_host.rb")
-            destination = File.join(ARGV.fetch(0), "#{spec.full_name}.gem")
-            abort "refusing to overwrite provider archive" if File.exist?(destination)
-            Gem::Package.build(spec, false, false, destination)
-          ' "${GITHUB_WORKSPACE}/kernel/tmp/psych-provider"
+            provider_root, provider_dir, support_dir = ARGV
+            gems_root = File.expand_path("..", provider_root)
+            load_spec = lambda do |dir|
+              Dir.chdir(dir) { Gem::Specification.load("#{File.basename(dir)}.gemspec") }
+            end
+            build_archive = lambda do |spec, dir, dest|
+              Dir.chdir(dir) do
+                target = File.join(dest, "#{spec.full_name}.gem")
+                abort "refusing to overwrite provider archive #{target}" if File.exist?(target)
+                Gem::Package.build(spec, false, false, target)
+              end
+            end
+            provider = load_spec.call(provider_root)
+            abort "unexpected provider gem" unless provider && provider.name == "psych-merge"
+            abort "typed parser host missing" unless provider.files.include?("lib/psych/merge/core_parser_host.rb")
+            build_archive.call(provider, provider_root, provider_dir)
+            packaged = { provider.name => true }
+            queue = provider.dependencies.select { |dependency| dependency.type == :runtime }.map(&:name)
+            until queue.empty?
+              name = queue.shift
+              next if packaged[name]
+
+              packaged[name] = true
+              sibling = File.join(gems_root, name)
+              next unless File.file?(File.join(sibling, "#{name}.gemspec"))
+
+              spec = load_spec.call(sibling)
+              build_archive.call(spec, sibling, support_dir)
+              queue.concat(spec.dependencies.select { |dependency| dependency.type == :runtime }.map(&:name))
+            end
+          ' "${GITHUB_WORKSPACE}/native-ruby/gems/psych-merge" "${provider_dir}" "${support_dir}"
       - name: Verify candidate through full installed Ruby kernel gates
         working-directory: kernel
         shell: bash
@@ -258,7 +289,10 @@ jobs:
           export TMPDIR="${GITHUB_WORKSPACE}/kernel/tmp"
           mapfile -t providers < <(find tmp/psych-provider -maxdepth 1 -name '*.gem' -print)
           test "${#providers[@]}" -eq 1
-          ruby workspace-scripts/check_core_ruby_artifact.rb --provider-gem "${providers[0]}" 2>&1 | tee tmp/psych-native-provider.log
+          test -d tmp/psych-provider-support
+          ruby workspace-scripts/check_core_ruby_artifact.rb \
+            --provider-gem "${providers[0]}" \
+            --provider-support-dir tmp/psych-provider-support 2>&1 | tee tmp/psych-native-provider.log
       - name: Upload native-provider evidence
         if: always()
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1

CHANGELOG.md

@@ -120,6 +120,17 @@ Please file a bug if you notice a violation of semantic versioning.
 
 - Restore Rust host declaration line ranges to exclude terminating separator newlines.
 
+- Require the release containing the Prism all-statements owner scope used by StructuredMerge templating.
+
+- Markdown merging now deduplicates template link-reference definitions against destination labels.
+
+- TreeHaver's TSLP backend now retries transient tree-sitter-language-pack grammar hot-load (on-demand download) failures up to a bounded budget instead of latching unavailability for the process lifetime, so one flaky grammar download no longer fails every later parse.
+
+- TreeHaver's "No parser registered" errors now include the tree-sitter-language-pack unavailability reason, so a failed on-demand grammar download surfaces as an attributable download error instead of a misleading registration message.
+
+- json-merge backend registration now only treats registration as complete when a JSON grammar actually registered, so a transient TSLP hot-load failure stays retryable instead of latching for the process lifetime.
+
+- TreeHaver exposes prefetch_languages to pre-download and pre-load language-pack grammars through their hot-load API before parsing.
 - Require conflict markers or a categorized conflict diagnostic before benchmark exit status 1 can count as a conflict; startup failures remain reliability errors.
 
 - Accept established categorized conflict diagnostics without a separate code field while still rejecting empty diagnostics and unexplained exit-one failures.