Fixes #54.

src/nimble.nim

@@ -519,7 +519,11 @@ proc installFromDir(dir: string, latest: bool, options: TOptions,
       elif defined(windows):
         let dest = binDir / cleanBin.changeFileExt("bat")
         echo("Creating stub: ", pkgDestDir / bin, " -> ", dest)
-        writeFile(dest, "\"" & pkgDestDir / bin & "\" %*\n")
+        var contents = ""
+        if options.config.chcp:
+          contents.add "chcp 65001\n"
+        contents.add "\"" & pkgDestDir / bin & "\" %*\n"
+        writeFile(dest, contents)
       else:
         {.error: "Sorry, your platform is not supported.".}
   else:

src/nimblepkg/config.nim

@@ -7,6 +7,7 @@ import tools, version
 type
   TConfig* = object
     nimbleDir*: string
+    chcp*: bool # Whether to change the code page in .cmd files on Win.
 
 proc initConfig(): TConfig =
   if getNimrodVersion() > newVersion("0.9.6"):
@@ -14,6 +15,8 @@ proc initConfig(): TConfig =
   else:
     result.nimbleDir = getHomeDir() / ".babel"
 
+  result.chcp = true
+
 proc parseConfig*(): TConfig =
   result = initConfig()
   var confFile = getConfigDir() / "nimble" / "nimble.ini"
@@ -42,6 +45,8 @@ proc parseConfig*(): TConfig =
           # Ensure we don't restore the deprecated nimble dir.
           if e.value != getHomeDir() / ".babel":
             result.nimbleDir = e.value
+        of "chcp":
+          result.chcp = parseBool(e.value)
         else:
           raise newException(ENimble, "Unable to parse config file:" &
                                      " Unknown key: " & e.key)