IJI-9: fix success if no changes are found

platform/build-scripts/icons/src/org/jetbrains/intellij/build/images/sync/checkIcons.kt

@@ -33,17 +33,29 @@ internal fun checkIcons(context: Context = Context(), loggerImpl: Consumer<Strin
   context.devIcons = readDevRepo(context, devRepoVcsRoots)
   callWithTimer("Searching for changed icons..") {
     when {
-      context.iconsCommitHashesToSync.isNotEmpty() -> searchForChangedIconsByDesigners(context, devRepoVcsRoots)
+      context.iconsCommitHashesToSync.isNotEmpty() -> searchForChangedIconsByDesigners(context)
       context.devIconsCommitHashesToSync.isNotEmpty() -> searchForChangedIconsByDev(context, devRepoVcsRoots)
       else -> searchForAllChangedIcons(context, devRepoVcsRoots)
     }
   }
-  if (context.devChanges().isEmpty() && context.iconsChanges().isEmpty()) {
-    log("No changes are found")
-  }
-  else {
-    syncIcons(context)
-    report(context, skippedDirs.size)
+  when {
+    !context.iconsSyncRequired() && !context.devSyncRequired() -> {
+      if (isUnderTeamCity() && isPreviousBuildFailed()) {
+        context.doFail("No changes are found")
+      }
+      else {
+        log("No changes are found")
+      }
+    }
+    else -> {
+      syncIcons(context)
+      val report = report(context, skippedDirs.size)
+      if (isUnderTeamCity() && context.isFail()) {
+        context.doFail(report)
+      } else {
+        log(report)
+      }
+    }
   }
 }
 
@@ -94,7 +106,7 @@ private fun asIcon(files: Collection<String>, repo: File, root: File) = files
   .filter { ImageExtension.fromName(it) != null }
   .map { repo.resolve(it).toRelativeString(root) }
 
-private fun searchForChangedIconsByDesigners(context: Context, devRepoVcsRoots: List<File>) {
+private fun searchForChangedIconsByDesigners(context: Context) {
   val iterator = context.iconsCommitHashesToSync.iterator()
   while (iterator.hasNext()) {
     val commit = iterator.next()

platform/build-scripts/icons/src/org/jetbrains/intellij/build/images/sync/reportUtils.kt

@@ -6,7 +6,7 @@ import java.util.*
 import java.util.stream.Stream
 import kotlin.streams.toList
 
-internal fun report(context: Context, skipped: Int) {
+internal fun report(context: Context, skipped: Int) : String {
   val (devIcons, icons) = context.devIcons.size to context.icons.size
   if (isUnderTeamCity()) {
     findCommitsToSync(context)
@@ -48,8 +48,7 @@ internal fun report(context: Context, skipped: Int) {
   if (context.createdReviews.isNotEmpty()) {
     report += "\nCreated reviews: ${context.createdReviews.joinToString { it.url }}"
   }
-  log(report)
-  if (isUnderTeamCity() && context.isFail()) context.doFail(report)
+  return report
 }
 
 private fun findCommitsToSync(context: Context) {

platform/build-scripts/icons/src/org/jetbrains/intellij/build/images/sync/teamCity.kt

@@ -32,8 +32,7 @@ internal fun isNotificationRequired(context: Context) =
   // remind of failure every day
   (context.isFail() ||
    // or check previous build and notify on fail -> success
-   teamCityGet("builds?locator=buildType:$BUILD_CONF,count:1")
-     .contains("status=\"FAILURE\""))
+   isPreviousBuildFailed())
 
 internal val DEFAULT_INVESTIGATOR by lazy {
   System.getProperty("intellij.icons.sync.default.investigator")?.takeIf { it.isNotBlank() } ?: error("Specify default investigator")
@@ -105,4 +104,6 @@ internal fun triggeredBy() = System.getProperty("teamcity.build.triggeredBy.user
   ?.let { teamCityGet("users/username:$it/email") }
   ?.removeSuffix(System.lineSeparator())
 
-internal fun isScheduled() = System.getProperty("teamcity.build.triggeredBy")?.contains("Schedule") == true
+internal fun isScheduled() = System.getProperty("teamcity.build.triggeredBy")?.contains("Schedule") == true
+
+internal fun isPreviousBuildFailed() = teamCityGet("builds?locator=buildType:$BUILD_CONF,count:1").contains("status=\"FAILURE\"")