IJPL-176548 FUS: Detect and log the presence of Zed

See https://zed.dev/docs/configuring-zed#settings-files for config location details

IJ-CR-154140

(cherry picked from commit f2ffa6a2c32c869edef87f62692257879fa6e807)

GitOrigin-RevId: 3d423a1603800f16efb3e846ea5ab5c8bc89707b

platform/platform-impl/internal/src/com/intellij/internal/statistic/collectors/fus/environment/EditorsCollector.kt

@@ -16,9 +16,10 @@ private const val VSCODE_ID = ".vscode"
 private const val CURSOR_ID = ".cursor"
 private const val WINDSURF_ID = ".windsurf"
 private const val ECLIPSE_ID = ".eclipse"
+private const val ZED_ID = ".zed"
 
 internal class EditorsCollector :  ApplicationUsagesCollector() {
-  private val EDITORS_GROUP: EventLogGroup = EventLogGroup("editors", 3)
+  private val EDITORS_GROUP: EventLogGroup = EventLogGroup("editors", 4)
 
   override fun getGroup(): EventLogGroup = EDITORS_GROUP
 
@@ -27,7 +28,8 @@ internal class EditorsCollector :  ApplicationUsagesCollector() {
     VSCODE_ID,
     CURSOR_ID,
     WINDSURF_ID,
-    ECLIPSE_ID
+    ECLIPSE_ID,
+    ZED_ID
   )
 
   private val CONFIG_EXISTS: EventId1<String> = EDITORS_GROUP.registerEvent(
@@ -80,6 +82,11 @@ internal class EditorsCollector :  ApplicationUsagesCollector() {
         if (Files.isDirectory(Paths.get(homeDir, ".eclipse"))) {
           add(CONFIG_EXISTS.metric(ECLIPSE_ID))
         }
+
+        val zedCollectionDataProvider = ZedCollectionDataProvider()
+        if (zedCollectionDataProvider.isZedDetected()) {
+          add(CONFIG_EXISTS.metric(ZED_ID))
+        }
       }
     }
   }

platform/platform-impl/internal/src/com/intellij/internal/statistic/collectors/fus/environment/ZedCollectionDataProvider.kt

@@ -0,0 +1,56 @@
+// Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package com.intellij.internal.statistic.collectors.fus.environment
+
+import com.intellij.openapi.diagnostic.debug
+import com.intellij.openapi.diagnostic.logger
+import com.intellij.openapi.util.SystemInfo
+import java.nio.file.InvalidPathException
+import java.nio.file.Path
+import java.nio.file.Paths
+import kotlin.io.path.exists
+
+private val logger = logger<ZedCollectionDataProvider>()
+
+internal class ZedCollectionDataProvider : ExternalEditorCollectionDataProvider() {
+
+  private val zedHomePath: Path? = getZedHomePath()
+
+  fun isZedDetected(): Boolean {
+    val isZedHomePathValid = zedHomePath?.exists() == true
+    logger.debug { "Zed detected: $isZedHomePathValid" }
+    return isZedHomePathValid
+  } 
+
+  private fun getZedHomePath(): Path? {
+    if (SystemInfo.isMac || SystemInfo.isLinux) {
+      val xdgConfigHomeEnvValue = try {
+        System.getenv("XDG_CONFIG_HOME")
+      }
+      catch (e: SecurityException) {
+        logger.debug(e)
+        null
+      }
+
+      logger.debug { "XDG_CONFIG_HOME env var value: $xdgConfigHomeEnvValue" }
+
+      if (xdgConfigHomeEnvValue != null) {
+        return try {
+          val zedHomePath = Paths.get(xdgConfigHomeEnvValue, "zed")
+          logger.debug { "Zed home path: $zedHomePath" }
+          zedHomePath
+        }
+        catch (e: InvalidPathException) {
+          logger.debug(e)
+          null
+        }
+      }
+
+      val zedHomePath = homeDirectory?.resolve(Paths.get(".config", "zed"))
+      logger.debug { "Zed home path: $zedHomePath" }
+      return zedHomePath
+    }
+
+    logger.debug { "The current OS is not supported by Zed" }
+    return null
+  }
+}