From 78fdc9652f5309cbb8e970630c5df8430aef24d2 Mon Sep 17 00:00:00 2001
From: Newton <iam@chrisopedia.com>
Date: Mon, 10 Mar 2014 13:16:17 -0700
Subject: [PATCH] Update dotfiles script to automate xCode CLI tools

- Create a script to check if xCode is installed; if so inform the user,
  if not run automated install script of xCode CLI tools
- Create a recursive script to automate xCode CLI tools; checks version
  of kernel to ensure user is on 13 or up (Mavericks) as thats when
  `xcode-select --install` was introduced.

Issue: #33
---
 bin/dotfiles |  7 +------
 lib/utils    | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/bin/dotfiles b/bin/dotfiles
index dd9c15908..83cbdaf47 100755
--- a/bin/dotfiles
+++ b/bin/dotfiles
@@ -47,12 +47,7 @@ do
 done
 
 # Before relying on Homebrew, check that packages can be compiled
-if ! type_exists 'gcc'; then
-    e_error "The XCode Command Line Tools must be installed first."
-    printf "  Download them from: https://developer.apple.com/downloads\n"
-    printf "  Then run: bash ~/.dotfiles/bin/dotfiles\n"
-    exit 1
-fi
+check_xcode
 
 # Check for Homebrew
 if ! type_exists 'brew'; then
diff --git a/lib/utils b/lib/utils
index 716b4fb35..ee852504d 100644
--- a/lib/utils
+++ b/lib/utils
@@ -61,3 +61,36 @@ formula_exists() {
     e_warning "Missing formula: $1"
     return 1
 }
+
+# Check if xCode is present
+check_xcode() {
+    if type_exists 'gcc'; then
+        e_success "xCode is installed"
+    else
+        e_warning "The XCode Command Line Tools must be installed first."
+        install_xcode
+    fi
+}
+
+# Install xCode Command Line Tools
+install_xcode() {
+    # figure out what version of OS X is running
+    darwin_version=$(uname -r)
+
+    # are you on Mavericks, Darwin kernal 13.0.0 or above
+    if (( ${darwin_version%%.*} > 12 )); then
+        e_header "Installing xCode Command Line Tools. Follow the prompt"
+        xcode-select --install
+        seek_confirmation "Is xCode done installing"
+
+        if is_confirmed; then
+            check_xcode
+        else
+            check_xcode
+        fi
+    else
+        printf "  Download them from: https://developer.apple.com/downloads\n"
+        printf "  Then run: bash ~/.dotfiles/bin/dotfiles\n"
+        exit 1
+    fi
+}