Use writeIfChanged

CodaFi · CodaFi · commit b2e02ccdb6cd · 2021-03-15T16:10:48.000-07:00
writeFileContents can fail if the file already exists.
diff --git a/Tests/TestUtilities/OutputFileMapCreator.swift b/Tests/TestUtilities/OutputFileMapCreator.swift
@@ -30,7 +30,7 @@ public struct OutputFileMapCreator {
                            derivedData: AbsolutePath,
                            to dst: AbsolutePath) {
     let creator = Self(module: module, inputPaths: inputPaths, derivedData: derivedData)
-    try! localFileSystem.writeFileContents(dst, bytes: ByteString(creator.generateData()))
+    try! localFileSystem.writeIfChanged(path: dst, bytes: ByteString(creator.generateData()))
   }
 
   private func generateDict() -> [String: [String: String]] {

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ public struct OutputFileMapCreator {`
`30`	`30`	`derivedData: AbsolutePath,`
`31`	`31`	`to dst: AbsolutePath) {`
`32`	`32`	`let creator = Self(module: module, inputPaths: inputPaths, derivedData: derivedData)`
`33`		`- try! localFileSystem.writeFileContents(dst, bytes: ByteString(creator.generateData()))`
	`33`	`+ try! localFileSystem.writeIfChanged(path: dst, bytes: ByteString(creator.generateData()))`
`34`	`34`	`}`
`35`	`35`
`36`	`36`	`private func generateDict() -> [String: [String: String]] {`