From 31c41a926e24c7cdb79b06151fcee21d0b459722 Mon Sep 17 00:00:00 2001
From: Arpad Borsos <swatinem@swatinem.de>
Date: Sun, 30 May 2021 10:55:21 +0200
Subject: [PATCH] Handle missing cargo installs gracefully

fixes #17
---
 src/common.ts | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/common.ts b/src/common.ts
index f7ab2ed..8ee4c47 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -86,16 +86,20 @@ export async function getCacheConfig(): Promise<CacheConfig> {
 }
 
 export async function getCargoBins(): Promise<Set<string>> {
-  const { installs }: { installs: { [key: string]: { bins: Array<string> } } } = JSON.parse(
-    await fs.promises.readFile(path.join(paths.cargoHome, ".crates2.json"), "utf8"),
-  );
-  const bins = new Set<string>();
-  for (const pkg of Object.values(installs)) {
-    for (const bin of pkg.bins) {
-      bins.add(bin);
+  try {
+    const { installs }: { installs: { [key: string]: { bins: Array<string> } } } = JSON.parse(
+      await fs.promises.readFile(path.join(paths.cargoHome, ".crates2.json"), "utf8"),
+    );
+    const bins = new Set<string>();
+    for (const pkg of Object.values(installs)) {
+      for (const bin of pkg.bins) {
+        bins.add(bin);
+      }
     }
+    return bins;
+  } catch {
+    return new Set<string>();
   }
-  return bins;
 }
 
 async function getRustKey(): Promise<string> {