Add Find It (#6)

Documentation/FindIt.md

@@ -0,0 +1,70 @@
+# Find It 🔍
+
+### A Work In Progress 👷
+
+For now, support `$ tryswiftdev -f -name <value>` only. 🙏
+
+<br />
+
+<img src="./Images/FindIt.png">
+
+<br />
+
+## Example
+
+### Building your project _Pokemon_ with Xcode
+
+```
+ld: framework not found sourcekitd
+clang: error: linker command failed with exit code 1 (use -v to see invocation)
+```
+
+### 🤔
+
+<br />
+
+### Running your project _Pokemon_ with Xcode
+
+```
+dyld: Library not loaded: @rpath/sourcekitd.framework/Versions/A/sourcekitd
+  Referenced from: /usr/local/bin/pokemon
+  Reason: image not found
+```
+
+### 🙄
+
+<br />
+
+### Finding it with _tryswiftdev_
+
+```bash
+$ tryswiftdev -f -name sourcekitd.framework
+```
+
+```
+Searching... /Applications/Xcode.app/Contents
+Searching... /Library/Developer
+Searching... /Library/Frameworks
+
+Found it!
+
+  - /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/sourcekitd.framework
+
+  - /Library/Developer/Toolchains/swift-2.2-SNAPSHOT-2016-03-01-a.xctoolchain/usr/lib/sourcekitd.framework
+
+  - /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-25-a.xctoolchain/usr/lib/sourcekitd.framework
+
+
+(Check your `Runpath Search Paths`, `Framework Search Paths`, etc.)
+```
+
+### 😇
+
+<br />
+
+## ToDo
+
+- [ ] Error Handling
+- [ ] Tests
+
+etc.

README.md

@@ -43,9 +43,12 @@ $ tryswiftdev
                             Do not overwrite an existing file.
 -r [--replace-readme]      Replace strings in a README.md
                             located in the current directory.
+-f [--find]                Search for specified file. ✨
 -h [--help]                Display available options.
 ```
 
+For more information about the `-f` option, please see [Find It](./Documentation/FindIt.md).
+
 <br />
 
 ## Example
@@ -94,9 +97,19 @@ HomeDirectory
 
 <br />
 
+### Finding It
+
+```bash
+$ tryswiftdev -f -name sourcekitd.framework
+```
+
+For more information, please see [Find It](./Documentation/FindIt.md).
+
+<br />
+
 ## Availability
 
-Recommend Swift 3.0-dev.
+Swift 3.0-dev
 
 <br />
 

Sources/Command.swift

@@ -20,16 +20,19 @@ func executeCommand(argments args: [String]) -> [String]? {
 
     close(pipe[1])
 
-    let N = 4096
-    var buf = [Int8](repeating: 0, count: N + 1)
+    let bufferSize = 4096
+    var buffer = [Int8](repeating: 0, count: bufferSize + 1)
 
     var n: Int
     var outputStrings = [String]()
+
+    // FIXME: Return value is not correct value when executing `$ xcodebuild -showBuildSettings`.
     repeat {
-        n = read(pipe[0], &buf, N)
-        if let output = String(validatingUTF8: buf) {
+        n = read(pipe[0], &buffer, bufferSize)
+        if let output = String(validatingUTF8: buffer) {
             outputStrings.append(output)
         }
+        buffer = [Int8](repeating: 0, count: bufferSize)
     } while n > 0
 
     close(pipe[0])

Sources/Error.swift

@@ -5,13 +5,16 @@
 
 enum Error: ErrorProtocol {
     case InvalidValue
+    case UnsupportedOption
 }
 
 extension Error: CustomStringConvertible {
     var description: String {
         switch self {
         case .InvalidValue:
             return "Please input [option <value> ...]."
+        case .UnsupportedOption:
+            return "Please input `tryswift -f -name <value>`."
         }
     }
 }

Sources/FindIt.swift

@@ -0,0 +1,29 @@
+let maybeHere = [
+    "/Applications/Xcode.app/Contents",
+    "/Library/Developer",
+    "/Library/Frameworks",
+]
+
+func findFile(targetOption option: String, targetName name: String) {
+    print("")
+    var existingFilePaths = [String]()
+    maybeHere.forEach {
+        print("Searching... \($0)")
+        guard let outputStrings = executeCommand(argments: ["find", $0, option, name]) else { return }
+        existingFilePaths.append(contentsOf: outputStrings)
+    }
+    displayResult(sources: parseToArray(source: existingFilePaths.reduce("", combine: { $0 + $1 })))
+}
+
+func displayResult(sources: [String]) {
+    print("")
+    guard !sources.isEmpty else {
+        print("Not found.")
+        return
+    }
+    print("Found it!")
+    print("")
+    sources.forEach { print("  - \($0)\n") }
+    print("")
+    print("(Check your `Runpath Search Paths`, `Framework Search Paths`, etc.)")
+}

Sources/Option.swift

@@ -1,6 +1,7 @@
 enum Options: String, CustomStringConvertible {
     case DuplicateReadme
     case ReplaceStringsInReadme
+    case FindIt
     case Usage
 
     init?(argment: String) {
@@ -9,6 +10,8 @@ enum Options: String, CustomStringConvertible {
             self = .DuplicateReadme
         case "-r", "--replace-readme":
             self = .ReplaceStringsInReadme
+        case "-f", "--find":
+            self = .FindIt
         case "-h", "--help":
             self = .Usage
         default:
@@ -24,6 +27,8 @@ enum Options: String, CustomStringConvertible {
         case .ReplaceStringsInReadme:
             return "Replace strings in a README.md"
                 + "\n                                located in the current directory."
+        case .FindIt:
+            return "Search for specified file."
         case .Usage:
             return "Display available options."
         }

Sources/Parse.swift

@@ -0,0 +1,3 @@
+func parseToArray(source: String) -> [String] {
+    return source.characters.split(separator: "\n").map { String($0) }
+}

Sources/Usage.swift

@@ -8,6 +8,7 @@ func usage() {
     print("OPTIONS:")
     print("    -d [--duplicate-readme]    \(Options.DuplicateReadme.description)")
     print("    -r [--replace-readme]      \(Options.ReplaceStringsInReadme.description)")
+    print("    -f [--find]                \(Options.FindIt.description)")
     print("    -h [--help]                \(Options.Usage.description)")
     print("")
     print("USAGE:")
@@ -16,6 +17,7 @@ func usage() {
     print("EXAMPLE:")
     print("    $ tryswiftdev -d ./Pokemon ./DragonBall")
     print("    $ tryswiftdev -r Pokemon DragonBall")
+    print("    $ tryswiftdev -f -name sourcekitd.framework")
     print("")
     print("_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/")
     print("")

Sources/main.swift

@@ -22,10 +22,17 @@ do {
         duplicateExistingReadme(existingReadmeDirctoryPath: value1, newReadmeDirectoryPath: value2)
     case .ReplaceStringsInReadme:
         replaceStringsInReadme(source: value1, target: value2)
+    case .FindIt:
+        guard value1 == "-name" else {
+            // TODO: For now, support `-name` only.
+            throw Error.UnsupportedOption
+        }
+        findFile(targetOption: "-name", targetName: value2)
     case .Usage:
         usage()
     }
 } catch let error as Error {
+    print("")
     print(error.description)
 } catch {
     // TODO: Error Handling