Check existance of package resolver caches (#5944)

giginet · web-flow · commit 6b477d9ac357 · 2022-12-21T17:20:05.000-08:00
diff --git a/Sources/PackageRegistry/RegistryDownloadsManager.swift b/Sources/PackageRegistry/RegistryDownloadsManager.swift
@@ -252,7 +252,7 @@ public class RegistryDownloadsManager: Cancellable {
     }
 
     public func purgeCache() throws {
-        guard let cachePath = self.cachePath else {
+        guard let cachePath = self.cachePath, fileSystem.exists(cachePath) else {
             return
         }
         try self.fileSystem.withLock(on: cachePath, type: .exclusive) {

Original file line number	Diff line number	Diff line change
`@@ -252,7 +252,7 @@ public class RegistryDownloadsManager: Cancellable {`
`252`	`252`	`}`
`253`	`253`
`254`	`254`	`public func purgeCache() throws {`
`255`		`- guard let cachePath = self.cachePath else {`
	`255`	`+ guard let cachePath = self.cachePath, fileSystem.exists(cachePath) else {`
`256`	`256`	`return`
`257`	`257`	`}`
`258`	`258`	`try self.fileSystem.withLock(on: cachePath, type: .exclusive) {`