Update and sort licenses (#366)

* Sort licenses after download

* Update licenses to latest

* Special case another license name

build.gradle

@@ -1,3 +1,5 @@
+import groovy.json.JsonOutput
+import groovy.json.JsonSlurper
 import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 
 plugins {
@@ -122,6 +124,13 @@ tasks.register("downloadLicensesJson", Copy) {
     }
   }
   into(jsonFolder)
+
+  doLast {
+    def destFile = jsonFile.asFile
+    def json = new JsonSlurper().parse(destFile)
+    json.licenses = json.licenses.sort { a, b -> a.licenseId <=> b.licenseId }
+    destFile.text = JsonOutput.prettyPrint(JsonOutput.toJson(json))
+  }
 }
 
 TaskProvider<app.cash.licensee.GenerateSpdxIdTask> generateSpdx = tasks.register('generateSpdx', app.cash.licensee.GenerateSpdxIdTask) {

gradle/build-logic/src/main/kotlin/app/cash/licensee/GenerateSpdxIdTask.kt

@@ -67,14 +67,18 @@ private fun SpdxLicenses.generate(): FileSpec {
 private val SpdxId: ClassName = ClassName("app.cash.licensee", "SpdxId")
 private val SpdxIdCompanion: ClassName = SpdxId.nestedClass("Companion")
 
-private val SpdxLicenseJson.identifier: String get() = if (id == "0BSD") {
-  "ZeroBSD" // hardcoded because it is the only id starting with a digit.
-} else {
-  id
-    .replace("-", "_")
-    .replace(".", "")
-    .replace("+", "Plus")
-}
+private val SpdxLicenseJson.identifier: String
+  get() = when (id) {
+    // Special-case IDs which start with a digit:
+    "0BSD" -> "ZeroBSD"
+    "3D-Slicer-1.0" -> "ThreeD_Slicer_10"
+    else -> {
+      id
+        .replace("-", "_")
+        .replace(".", "")
+        .replace("+", "Plus")
+    }
+  }
 
 private fun SpdxLicenses.addSpdxIdInterface(): TypeSpec = TypeSpec.classBuilder("SpdxId").apply {
   primaryConstructor(