Move some private vim undo/backup paths out of vimrc and into a sourced file

install

@@ -1,32 +1,16 @@
 #!/bin/bash
 
-if which tput >/dev/null 2>&1; then
-  ncolors=$(tput colors)
-fi
-if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
-  RED="$(tput setaf 1)"
-  GREEN="$(tput setaf 2)"
-  YELLOW="$(tput setaf 3)"
-  BLUE="$(tput setaf 4)"
-  BOLD="$(tput bold)"
-  NORMAL="$(tput sgr0)"
-else
-  RED=""
-  GREEN=""
-  YELLOW=""
-  BLUE=""
-  BOLD=""
-  NORMAL=""
-fi
+source "script_helpers/all.sh"
 
 set -e
 
 cwd=$PWD
 platform=`uname`
 
-if [[ $platform != 'Linux' && $platform != 'Darwin' ]]; then
-  printf "${RED}This is only supported on Linux or OS X.${NORMAL}\n"
-  exit
+os_is_windows is_windows
+if [[ $is_windows -eq 0 ]]; then
+  error "This is only supported on Linux or MacOS.\n"
+  exit 1
 fi
 
 setup_dotfile_repo() {
@@ -39,13 +23,9 @@ setup_dotfile_repo() {
   mkdir -p $HOME/tmp
 }
 
-link_file() {
+link() {
   file=$1
-  dest="$HOME/.$file"
-  if [ ! -e $dest ]; then
-    printf "${YELLOW}Creating ${file} symlink${NORMAL}\n"
-    ln -s "$HOME/.dotfiles/$file" $dest
-  fi
+  link_file "$HOME/.dotfiles/$file" "$HOME/.$file" 0
 }
 
 setup_git() {
@@ -57,7 +37,7 @@ setup_git() {
 
   for file in "${FILES[@]}"
   do
-    link_file "$file"
+    link "$file"
   done
 }
 
@@ -83,7 +63,7 @@ setup_zsh() {
 
   for file in "${FILES[@]}"
   do
-    link_file "$file"
+    link "$file"
   done
 }
 
@@ -96,7 +76,7 @@ setup_vim() {
 
   for file in "${FILES[@]}"
   do
-    link_file "$file"
+    link "$file"
   done
 }
 
@@ -109,7 +89,7 @@ setup_misc() {
 
   for file in "${FILES[@]}"
   do
-    link_file "$file"
+    link "$file"
   done
 }