Add automation for updating library release versions

Automated script was added to update library release versions in a separate 'v-releases.list' file. To ensure regular updates, a GitHub Action was added to run the update script on a daily basis.

.github/scripts/libraries_releases.main.kts

@@ -0,0 +1,64 @@
+#!/usr/bin/env kotlin
+
+/**
+ * This script is used to update the versions of libraries stored in the v-releases.list releases file.
+ */
+
+import java.io.File
+import java.net.HttpURLConnection
+import java.net.URL
+
+val FILE_PATH = "v-releases.list"
+val UNKNOWN = "unknown"
+
+val releasesList = mapOf(
+        "gradle-intellij-plugin-version" to ReleaseInfo(
+                type = ReleaseType.GitHub,
+                url = "https://github.com/JetBrains/gradle-intellij-plugin/releases/latest",
+        ),
+        "gradle-grammar-kit-plugin-version" to ReleaseInfo(
+                type = ReleaseType.GitHub,
+                url = "https://github.com/JetBrains/gradle-grammar-kit-plugin/releases/latest",
+        ),
+)
+
+val vars = releasesList.mapValues { (key, releaseInfo) ->
+  when (releaseInfo.type) {
+    ReleaseType.GitHub -> run {
+      try {
+        URL(releaseInfo.url).openConnection().run {
+          (this as HttpURLConnection).instanceFollowRedirects = false
+          getHeaderField("Location").split('/').last().removePrefix("v")
+        }
+      } catch (e: Exception) {
+        println("Cannot resolve the latest $key version")
+        UNKNOWN
+      }
+    }
+  }
+}.map { (key, version) ->
+  "<var name=\"$key\" value=\"$version\"/>"
+}
+
+"""
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE vars
+        SYSTEM "https://helpserver.labs.jb.gg/help/schemas/mvp/vars.dtd">
+
+<vars>
+  ${vars.joinToString("\n  ")}
+</vars>
+""".trimStart().let(file(FILE_PATH)::writeText)
+
+
+
+fun file(path: String) = File(System.getenv("GITHUB_WORKSPACE") ?: "../../").resolve(path).also(File::createNewFile)
+
+enum class ReleaseType {
+  GitHub
+}
+
+data class ReleaseInfo(
+        val type: ReleaseType,
+        val url: String,
+)

.github/workflows/generate-libraries-releases.yml

@@ -0,0 +1,19 @@
+name: Generate Libraries releases variable file
+
+on:
+  schedule:
+    - cron: "1 1 * * *"
+  workflow_dispatch:
+
+jobs:
+  generate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Generate
+        run: "${GITHUB_WORKSPACE}/.github/scripts/libraries_releases.main.kts"
+      - name: Commit changes
+        uses: Endbug/add-and-commit@v9
+        with:
+          message: 'Generate Libraries releases variable file'
+          add: 'v-releases.list'

project.ihp

@@ -11,6 +11,7 @@
     <topics dir="reference_guide"/>
     <images dir="images" web-path="/img/idea-sdk/"/>
     <vars src="v.list" />
+    <vars src="v-releases.list" />
     <snippets dir="code_samples"/>
     <instance src="ijs.tree" keymaps-mode="none" id="intellij" web-path="/intellij/"/>
 </ihp>

v-releases.list

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE vars
+        SYSTEM "https://helpserver.labs.jb.gg/help/schemas/mvp/vars.dtd">
+
+<vars>
+  <var name="gradle-intellij-plugin-version" value="1.15.0"/>
+  <var name="gradle-grammar-kit-plugin-version" value="2022.3.1"/>
+</vars>

v.list

@@ -16,8 +16,4 @@
 
   <var name="gh-ij-plugins" value="https://github.com/JetBrains/intellij-plugins/tree/idea/%ijPlatformBuild%"/>
   <var name="gh-ij-plugins-master" value="https://github.com/JetBrains/intellij-plugins/tree/master"/>
-
-  <!--  Tool release versions -->
-  <var name="gradle-intellij-plugin-version" value="1.15.0"/>
-  <var name="gradle-grammar-kit-plugin-version" value="2022.3.1"/>
 </vars>