From 69f36c4e58de370b38f21c5c5bd8b12aea9051f3 Mon Sep 17 00:00:00 2001
From: Sheng Chen <sheche@microsoft.com>
Date: Wed, 28 Aug 2024 11:30:57 +0800
Subject: [PATCH] fix - Fallback to /tmp/ when named pipe is too long (#1591)

---
 .../com/microsoft/gradle/bs/importer/NamedPipeStream.java  | 3 ++-
 extension/src/util/generateRandomPipeName.ts               | 7 +++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/extension/jdtls.ext/com.microsoft.gradle.bs.importer/src/com/microsoft/gradle/bs/importer/NamedPipeStream.java b/extension/jdtls.ext/com.microsoft.gradle.bs.importer/src/com/microsoft/gradle/bs/importer/NamedPipeStream.java
index 7447afee6..ab741f642 100644
--- a/extension/jdtls.ext/com.microsoft.gradle.bs.importer/src/com/microsoft/gradle/bs/importer/NamedPipeStream.java
+++ b/extension/jdtls.ext/com.microsoft.gradle.bs.importer/src/com/microsoft/gradle/bs/importer/NamedPipeStream.java
@@ -128,7 +128,8 @@ private String generateRandomPipeName() {
                 randomLength = Math.min(limit - tmpDir.length() - fixedLength, randomLength);
             }
             if (randomLength < 16) {
-                throw new NamedPipeConnectionException("Unable to generate a random pipe name with character length less than 16");
+                tmpDir = "/tmp/";
+                JavaLanguageServerPlugin.logInfo("length of random pipe name too long, using /tmp/ as tmpDir");
             }
 
             String randomSuffix = generateRandomHex(randomLength/2);
diff --git a/extension/src/util/generateRandomPipeName.ts b/extension/src/util/generateRandomPipeName.ts
index 3559bbfe5..d3714c885 100644
--- a/extension/src/util/generateRandomPipeName.ts
+++ b/extension/src/util/generateRandomPipeName.ts
@@ -19,13 +19,16 @@ function generateRandomPipeName(): string {
 
     let randomLength = 32;
     const fixedLength = ".sock".length;
-    const tmpDir: string = fs.realpathSync(XDG_RUNTIME_DIR ?? os.tmpdir());
+    let tmpDir: string = fs.realpathSync(XDG_RUNTIME_DIR ?? os.tmpdir());
     const limit = safeIpcPathLengths.get(process.platform);
     if (limit !== undefined) {
         randomLength = Math.min(limit - tmpDir.length - fixedLength, randomLength);
     }
     if (randomLength < 16) {
-        throw new Error(`Unable to generate a random pipe name with ${randomLength} characters.`);
+        sendInfo("", {
+            kind: "tempDirTooLongWhenGenerateRandomPipeName",
+        });
+        tmpDir = "/tmp/";
     }
 
     const randomSuffix = randomBytes(Math.floor(randomLength / 2)).toString("hex");