Implement promptCustom in cli and use it for init command.

src/nimble.nim

@@ -35,18 +35,6 @@ else:
   proc GetVersionExA*(VersionInformation: var OSVERSIONINFO): WINBOOL{.stdcall,
     dynlib: "kernel32", importc: "GetVersionExA".}
 
-proc promptCustom(question, default: string): string =
-  if default == "":
-    stdout.write(question, ": ")
-    let user = stdin.readLine()
-    if user.len == 0: return promptCustom(question, default)
-    else: return user
-  else:
-    stdout.write(question, " [", default, "]: ")
-    let user = stdin.readLine()
-    if user == "": return default
-    else: return user
-
 proc refresh(options: Options) =
   ## Downloads the package list from the specified URL.
   ##
@@ -804,9 +792,10 @@ proc dump(options: Options) =
 proc init(options: Options) =
   var nimbleFile: string = ""
 
-  echo("In order to initialise a new Nimble package, I will need to ask you\n" &
+  display("Info:",
+       "In order to initialise a new Nimble package, I will need to ask you\n" &
        "some questions. Default values are shown in square brackets, press\n" &
-       "enter to use them.")
+       "enter to use them.", priority = HighPriority)
 
   # Ask for package name.
   if options.action.projName != "":
@@ -814,7 +803,7 @@ proc init(options: Options) =
     nimbleFile = pkgName.changeFileExt("nimble")
   else:
     var pkgName = os.getCurrentDir().splitPath.tail.toValidPackageName()
-    pkgName = promptCustom("Enter package name", pkgName)
+    pkgName = promptCustom("Package name?", pkgName)
     nimbleFile = pkgName.changeFileExt("nimble")
 
   validatePackageName(nimbleFile.changeFileExt(""))
@@ -823,7 +812,7 @@ proc init(options: Options) =
     raise newException(NimbleError, "Nimble file already exists.")
 
   # Ask for package version.
-  let pkgVersion = promptCustom("Enter initial version of package", "0.1.0")
+  let pkgVersion = promptCustom("Initial version of package?", "0.1.0")
   validateVersion(pkgVersion)
 
   # Ask for package author
@@ -836,25 +825,20 @@ proc init(options: Options) =
     let (name, exitCode) = doCmdEx("hg config ui.username")
     if exitCode == QuitSuccess and name.len > 0:
       defaultAuthor = name.strip()
-  let pkgAuthor = promptCustom("Enter your name", defaultAuthor)
+  let pkgAuthor = promptCustom("Your name?", defaultAuthor)
 
   # Ask for description
-  let pkgDesc = promptCustom("Enter package description", "")
+  let pkgDesc = promptCustom("Package description?", "")
 
   # Ask for license
   # TODO: Provide selection of licenses, or select random default license.
-  let pkgLicense = promptCustom("Enter package license", "MIT")
+  let pkgLicense = promptCustom("Package license?", "MIT")
 
   # Ask for Nim dependency
   let nimDepDef = getNimrodVersion()
-  let pkgNimDep = promptCustom("Enter lowest supported Nim version", $nimDepDef)
+  let pkgNimDep = promptCustom("Lowest supported Nim version?", $nimDepDef)
   validateVersion(pkgNimDep)
 
-  # Now generate the .nimble file.
-  if existsFile(os.getCurrentDir() / nimbleFile):
-    raise newException(NimbleError,
-        "Looks like a Nimble file has already been created.")
-
   var outFile: File
   if open(f = outFile, filename = nimbleFile, mode = fmWrite):
     outFile.writeLine """# Package
@@ -874,6 +858,8 @@ requires "nim >= $#"
     raise newException(NimbleError, "Unable to open file " & nimbleFile &
                        " for writing: " & osErrorMsg(osLastError()))
 
+  display("Success:", "Nimble file created successfully", Success, HighPriority)
+
 proc uninstall(options: Options) =
   if options.action.packages.len == 0:
     raise newException(NimbleError,

src/nimblepkg/cli.nim

@@ -128,6 +128,20 @@ proc prompt*(forcePrompts: ForcePrompt, question: string): bool =
     else:
       return false
 
+proc promptCustom*(question, default: string): string =
+  if default == "":
+    display("Prompt:", question, Warning, HighPriority)
+    displayCategory("Answer:", Warning, HighPriority)
+    let user = stdin.readLine()
+    if user.len == 0: return promptCustom(question, default)
+    else: return user
+  else:
+    display("Prompt:", question & " [" & default & "]", Warning, HighPriority)
+    displayCategory("Answer:", Warning, HighPriority)
+    let user = stdin.readLine()
+    if user == "": return default
+    else: return user
+
 proc setVerbosity*(level: Priority) =
   globalCLI.level = level