Revert "Remove swift-log dependency"

This reverts commit 826125c.

Author: finestructure

Package.resolved

@@ -15,13 +15,15 @@ let package = Package(
         .library(name: "ShellOut", targets: ["ShellOut"])
     ],
     dependencies: [
-        .package(url: "https://github.com/SwiftPackageIndex/ShellQuote", from: "1.0.2")
+        .package(url: "https://github.com/SwiftPackageIndex/ShellQuote", from: "1.0.2"),
+        .package(url: "https://github.com/apple/swift-log.git", from: "1.0.0"),
     ],
     targets: [
         .target(
             name: "ShellOut",
             dependencies: [
-                .product(name: "ShellQuote", package: "ShellQuote")
+                .product(name: "ShellQuote", package: "ShellQuote"),
+                .product(name: "Logging", package: "swift-log"),
             ],
             path: "Sources"
         ),

Package.swift

@@ -6,6 +6,7 @@
 
 import Foundation
 import Dispatch
+import Logging
 
 // MARK: - API
 
@@ -33,6 +34,7 @@ import Dispatch
     arguments: [Argument] = [],
     at path: String = ".",
     process: Process = .init(),
+    logger: Logger? = nil,
     outputHandle: FileHandle? = nil,
     errorHandle: FileHandle? = nil,
     environment: [String : String]? = nil,
@@ -42,6 +44,7 @@ import Dispatch
 
     return try process.launchBash(
         with: command,
+        logger: logger,
         outputHandle: outputHandle,
         errorHandle: errorHandle,
         environment: environment,
@@ -90,6 +93,7 @@ import Dispatch
     to command: ShellOutCommand,
     at path: String = ".",
     process: Process = .init(),
+    logger: Logger? = nil,
     outputHandle: FileHandle? = nil,
     errorHandle: FileHandle? = nil,
     environment: [String : String]? = nil,
@@ -100,6 +104,7 @@ import Dispatch
         arguments: command.arguments,
         at: path,
         process: process,
+        logger: logger,
         outputHandle: outputHandle,
         errorHandle: errorHandle,
         environment: environment,
@@ -435,6 +440,7 @@ extension ShellOutCommand {
 private extension Process {
     @discardableResult func launchBash(
         with command: String,
+        logger: Logger? = nil,
         outputHandle: FileHandle? = nil,
         errorHandle: FileHandle? = nil,
         environment: [String : String]? = nil,
@@ -493,7 +499,9 @@ private extension Process {
         try self.run()
         self.waitUntilExit()
 
-        _ = outputGroup.wait(timeout: .now() + eofTimeout)
+        if outputGroup.wait(timeout: .now() + eofTimeout) == .timedOut {
+            logger?.warning("ShellOut.launchBash: Timed out waiting for EOF! (command: \(command))")
+        }
 
         // We know as of this point that either all blocks have been submitted to the
         // queue already, or we've reached our wait timeout.