[ci skip] Fix branch check in publishing

build-logic/src/main/kotlin/extensions.kt

@@ -50,7 +50,7 @@ fun Project.latestCommitMessage(): String {
 fun Project.branchName(): String {
     val byteOut = ByteArrayOutputStream()
     exec {
-        commandLine = listOf("git", "branch")
+        commandLine = listOf("git", "symbolic-ref", "--short", "HEAD")
         standardOutput = byteOut
     }
     return byteOut.toString(Charsets.UTF_8.name()).trim()

universal/build.gradle.kts

@@ -46,6 +46,8 @@ publishShadowJar()
 val branch = rootProject.branchName()
 val baseVersion = project.version as String
 val isRelease = !baseVersion.contains('-')
+val isMainBranch = branch == "master"
+if (!isRelease || isMainBranch) { // Only publish releases from the main branch
     val suffixedVersion = if (isRelease) baseVersion else baseVersion + "+" + System.getenv("GITHUB_RUN_NUMBER")
     val changelogContent = if (isRelease) {
         "See [GitHub](https://github.com/ViaVersion/ViaBackwards) for release notes."
@@ -53,7 +55,6 @@ val changelogContent = if (isRelease) {
         val commitHash = rootProject.latestCommitHash()
         "[$commitHash](https://github.com/ViaVersion/ViaBackwards/commit/$commitHash) ${rootProject.latestCommitMessage()}"
     }
-val isMainBranch = branch == "master"
     modrinth {
         // val snapshotVersion = rootProject.parseMinecraftSnapshotVersion(project.version as String)
         val mcVersions: List<String> = (property("mcVersions") as String)
@@ -122,3 +123,4 @@ hangarPublish {
             }
         }
     }
+}