Linux

.travis.yml

@@ -0,0 +1,16 @@
+# only run for: merge commits, releases and pull-requests
+if: type != push OR branch = master OR branch =~ /^\d+\.\d+(\.\d+)?(-\S*)?$/
+
+jobs:
+  include:
+    - os: osx
+      language: swift
+      osx_image: xcode10.1
+      script: swift test
+    - env: SWIFT_VERSION=4.2.1
+      os: linux
+      language: generic
+      dist: trusty
+      sudo: false
+      install: eval "$(curl -sL https://swiftenv.fuller.li/install.sh)"
+      script: swift test

Sources/Extensions.swift

@@ -47,7 +47,11 @@ public extension Data {
     func write(to: Path, atomically: Bool = false) throws -> Path {
         let opts: NSData.WritingOptions
         if atomically {
+        #if os(macOS)
             opts = .atomicWrite
+        #else
+            opts = .atomic
+        #endif
         } else {
             opts = []
         }

Sources/TemporaryDirectory.swift

@@ -5,7 +5,16 @@ public class TemporaryDirectory {
     public var path: Path { return Path(string: url.path) }
 
     public init() throws {
+    #if os(macOS)
         url = try FileManager.default.url(for: .itemReplacementDirectory, in: .userDomainMask, appropriateFor: URL(fileURLWithPath: "/"), create: true)
+    #else
+        let envs = ProcessInfo.processInfo.environment
+        let env = envs["TMPDIR"] ?? envs["TEMP"] ?? envs["TMP"] ?? "/tmp"
+        let dir = Path.root/env/"swift-sh.XXXXXX"
+        var template = [UInt8](dir.string.utf8).map({ Int8($0) }) + [Int8(0)]
+        guard mkdtemp(&template) != nil else { throw CocoaError.error(.featureUnsupported) }
+        url = URL(fileURLWithPath: String(cString: template))
+    #endif
     }
 
     deinit {