Delay registering of main sourceset in legacy Mixin (#36)

* Delay registering of main sourceset in legacy Mixin until metadata is available

Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>

* checkout repository before trying to publish test report

Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>

---------

Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>

Author: Octol1ttle

.github/workflows/test.yml

@@ -51,6 +51,9 @@ jobs:
       # This grants the job permission to post check runs.
       checks: write
     steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
       - name: Download test results
         uses: actions/download-artifact@v5
         with:

src/main/kotlin/dev/isxander/modstitch/base/moddevgradle/BaseModDevGradleImpl.kt

@@ -348,9 +348,10 @@ class BaseModDevGradleImpl(
             mixin.add(target.sourceSets[this@obj.sourceSetName.get()], this@obj.refmapName.get())
         }
         stitchedMixin.configs.whenObjectAdded obj@{ mixin.configs.add(this@obj.config) }
-        stitchedMixin.registerSourceSet(target.mainSourceSet!!, modstitch.metadata.modId.map { "$it.refmap.json" })
 
         target.afterEvaluate {
+            stitchedMixin.registerSourceSet(target.mainSourceSet!!, modstitch.metadata.modId.map { "$it.refmap.json" })
+
             modstitch.namedJarTask {
                 manifest.attributes["MixinConfigs"] = stitchedMixin.configs.joinToString(",") { it.config.get() }
             }