Add retry or downloading artifacts from Space

## Release Notes
N/A

Author: igordmn

.github/workflows/ci-build-helpers.yml

@@ -0,0 +1,41 @@
+name: Build-Helpers Publish to Maven Local
+on:
+  pull_request:
+    paths:
+      - 'ci/build-helpers/**'
+      - '.github/workflows/build-helpers.yml'
+  push:
+    branches:
+      - master
+    paths:
+      - 'ci/build-helpers/**'
+      - '.github/workflows/build-helpers.yml'
+
+jobs:
+  build-helpers-publish:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v5
+
+      - name: Setup JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'jetbrains'
+          java-version: '21'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/master' }}
+          gradle-home-cache-excludes: |
+            caches/jars-9
+            caches/transforms-3
+
+      - name: Publish to Maven Local
+        shell: bash
+        working-directory: ci/build-helpers
+        run: |
+          ./gradlew --no-daemon --stacktrace publishToMavenLocal

ci/build-helpers/publishing/src/main/kotlin/org/jetbrains/compose/internal/publishing/DownloadFromSpaceTask.kt

@@ -11,6 +11,7 @@ import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
+import org.jetbrains.compose.internal.publishing.utils.retry
 import org.jsoup.Jsoup
 import java.net.URL
 
@@ -33,10 +34,11 @@ abstract class DownloadFromSpaceMavenRepoTask : DefaultTask() {
         logger.info("Downloading ${module.coordinate}...")
         val groupUrl = module.groupId.replace(".", "/")
 
-        val filesListingDocument =
+        val filesListingDocument = retry(logger, count = 5, initialDelay = 1000L, exponentialDelayMultiplier = 3) {
             Jsoup.connect("${spaceRepoUrl.get()}/$groupUrl/${module.artifactId}/${module.version}/")
                 .timeout(180_000)
                 .get()
+        }
         val downloadableFiles = HashMap<String, URL>()
         for (a in filesListingDocument.select("#contents > a")) {
             val href = a.attributes().get("href")
@@ -78,6 +80,11 @@ abstract class DownloadFromSpaceMavenRepoTask : DefaultTask() {
         DownloadAction(project, this).apply {
             src(downloadableFiles.values)
             dest(destinationDir)
+            // it doesn't add delays between retries unfortunately
+            // https://github.com/michel-kraemer/gradle-download-task/blob/720c9a084759941ebdabb1ad9113fc8fb7994e1d/src/main/java/de/undercouch/gradle/tasks/download/internal/DefaultHttpClientFactory.java#L71
+            // but it might help avoiding flaky 500 Server error, encountered earlier:
+            // Server Error (HTTP status code: 500, URL: https://packages.jetbrains.team/maven/p/cmp/dev/org/jetbrains/skiko/skiko-linuxarm64/0.144.1/skiko-linuxarm64-0.144.1-javadoc.jar.sha1
+            retries(5)
         }.execute()
     }
 }

ci/build-helpers/publishing/src/main/kotlin/org/jetbrains/compose/internal/publishing/utils/Retry.kt

@@ -0,0 +1,27 @@
+package org.jetbrains.compose.internal.publishing.utils
+
+import org.gradle.api.logging.Logger
+
+fun <T> retry(
+    logger: Logger? = null,
+    count: Int = 5,
+    initialDelay: Long,
+    exponentialDelayMultiplier: Int = 3,
+    block: () -> T
+): T {
+    var retries = 0
+    var delay = initialDelay
+    while (true) {
+        try {
+            return block()
+        } catch (e: Exception) {
+            if (retries >= count) {
+                throw e
+            }
+            retries++
+            logger?.warn("Operation failed: ${e.message}. Retrying ($retries/$count) in ${delay}ms...")
+            Thread.sleep(delay)
+            delay *= exponentialDelayMultiplier
+        }
+    }
+}