Added version release notes.

Includes enhanced support for XDG environment variables which don't
require support of additional tools like [direnv](https://direnv.net).

[Changes](https://github.com/bkuhlmann/git-cop/releases/tag/3.0.0).

.ruby-version

@@ -1 +1 @@
-2.5.1
+2.6.0

CHANGES.md

@@ -1,3 +1,23 @@
+# 7.0.0 (2019-01-01)
+
+- Fixed Circle CI cache for Ruby version.
+- Fixed installation of apps with no extension.
+- Fixed program installs.
+- Added Circle CI Bundler cache.
+- Added README boot disk documentation.
+- Added README troubleshooting section.
+- Updated to Git Cop 3.0.0.
+- Updated to Ruby 2.6.0.
+- Removed Java development tools from setup.
+- Removed download file function.
+
+# 6.1.0 (2018-11-01)
+
+- Updated to Java SE Development Kit 11.
+- Updated to Ruby 2.5.2.
+- Updated to Ruby 2.5.3.
+- Removed unnecessary source code comments.
+
 # 6.0.0 (2018-10-01)
 
 - Added XCode install tip.

Gemfile

@@ -3,4 +3,4 @@
 source "https://rubygems.org"
 
 gem "rake", "~> 12.0"
-gem "git-cop", "~> 2.2"
+gem "git-cop", "~> 3.0"

README.md

@@ -26,7 +26,9 @@ the two projects are meant to be used:
   - [Requirements](#requirements)
   - [Setup](#setup)
   - [Usage](#usage)
+    - [Boot Disk](#boot-disk)
     - [Customization](#customization)
+  - [Troubleshooting](#troubleshooting)
   - [Versioning](#versioning)
   - [Code of Conduct](#code-of-conduct)
   - [Contributions](#contributions)
@@ -41,9 +43,7 @@ the two projects are meant to be used:
 - Provides a command line interface, written in Bash, with no additional dependencies for
   installation and management of a macOS machine.
 - Supports macOS boot disk creation for fresh install of operating system.
-- Downloads and installs development tools (required by Homebrew):
+- Downloads and installs [Xcode Command Line Tools](https://developer.apple.com/xcode).
-    - [Xcode Command Line Tools](https://developer.apple.com/xcode)
-    - [Java SE Development Kit](http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html)
 - Downloads, installs, and configures [Homebrew Formulas](http://brew.sh).
 - Downloads, installs, and configures [Homebrew Casks](https://caskroom.github.io).
 - Downloads, installs, and configures
@@ -72,7 +72,7 @@ Current Version (stable):
 
     git clone https://github.com/bkuhlmann/mac_os.git
     cd mac_os
-    git checkout 6.0.0
+    git checkout 7.0.0
 
 Master Version (unstable):
 
@@ -125,6 +125,31 @@ been loaded.
 It is recommended that the `mac_os` project directory not be deleted and kept on the local machine
 in order to manage installed software and benefit from future upgrades.
 
+### Boot Disk
+
+When attempting to create a boot disk via `bin/run B`, you'll be presented with the following
+documentation (provided here for reference):
+
+    macOS Boot Disk Tips
+      - Use a USB drive (8GB or higher).
+      - Use Disk Utility to format the USB drive as "Mac OS Extended (Journaled)".
+      - Use Disk Utility to label the USB drive as "Untitled".
+
+    macOS Boot Disk Usage:
+      1. Insert the USB boot disk into the machine to be upgraded.
+      2. Reboot the machine.
+      3. Hold down the OPTION key before the Apple logo appears.
+      4. Select the USB boot disk from the menu.
+      5. Use Disk Utility to format the machine's drive as "APFS (Encrypted)".
+      6. Install the new operating system.
+
+    macOS Reinstall:
+      1. Click the Apple icon from the operating system main menu.
+      2. Select the "Restart..." menu option.
+      3. Hold down the COMMAND+R keys before the Apple logo appears.
+      4. Wait for the macOS installer to load from the recovery partition.
+      5. Use the dialog options to launch Disk Utility, reinstall the system, etc.
+
 ### Customization
 
 All executable scripts can be found in the `bin` folder:
@@ -152,6 +177,16 @@ project is built upon the functions found in the `lib` folder. See the
 
   - `lib/settings.sh`: Defines global settings for software applications, extensions, etc.
 
+## Troubleshooting
+
+When using the boot disk, you might experience a situation where you see a black screen with a white
+circle and diagonal line running through it. This means macOS lost or can't find the boot disk for
+some reason. To correct this, shut down and boot up the system again while holding down the
+`OPTION+COMMAND+R+P` keys simultaneously. You might want to wait for the system boot sound to happen
+a few times before releasing the keys. This will clear the system NVRAM/PRAM. At this point you can
+shut down and restart the system following the boot disk instructions (the boot disk will be
+recognized now).
+
 ## Versioning
 
 Read [Semantic Versioning](https://semver.org) for details. Briefly, it means:

bin/apply_basic_settings

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Applies basic system settings.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/apply_basic_settings"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/apply_default_settings

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Applies default settings.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/apply_default_settings"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/create_boot_disk

@@ -1,9 +1,7 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Creates macOS boot disk.
 
-# EXECUTION
 printf "macOS Boot Disk Tips\n"
 printf "  - Use a USB drive (8GB or higher).\n"
 printf "  - Use Disk Utility to format the USB drive as \"Mac OS Extended (Journaled)\".\n"

bin/install_app_store

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs App Store software.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/install_app_store"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/install_applications

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs applications.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/install_applications"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/install_dev_tools

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs development tooling requirements.
 
 printf "Installing Xcode CLI tools...\n"
@@ -12,13 +11,3 @@ if [[ "$xcode_response" != "y" ]]; then
   printf "ERROR: Xcode CLI tools must be installed before proceeding.\n"
   exit 1
 fi
-
-printf "Installing $JAVA_LABEL...\n"
-printf "%s\n" "You must manually accept the license and download the $JAVA_LABEL: $JAVA_DOWNLOAD_URL."
-open $JAVA_DOWNLOAD_URL
-
-read -p "Have you completed the $JAVA_LABEL install (y/n)? " java_response
-if [[ "$java_response" != "y" ]]; then
-  printf "ERROR: $JAVA_LABEL must be installed before proceeding.\n"
-  exit 1
-fi

bin/install_extensions

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs application extensions.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/install_extensions"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/install_homebrew_casks

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs Homebrew Cask software.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/install_homebrew_casks"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/install_homebrew_formulas

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs Homebrew Formula software.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/install_homebrew_formulas"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/restore_backup

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Performs restoration of backup data.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/restore_backup"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

bin/run

@@ -1,12 +1,7 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Executes the command line interface.
 
-# USAGE
-# ./run.sh OPTION
-
-# LIBRARY
 source lib/installers.sh
 source lib/options.sh
 source lib/reinstallers.sh
@@ -28,7 +23,6 @@ else
   exit 1
 fi
 
-# EXECUTION
 while true; do
   if [[ $# == 0 ]]; then
     printf "\nUsage: run OPTION\n"

bin/setup_software

@@ -1,16 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Sets up and launches (if necessary) installed software.
 
-# SETTINGS
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 SCRIPT_PATH="$MAC_OS_CONFIG_PATH/bin/setup_software"
 
-# EXECUTION
 if [[ -x "$SCRIPT_PATH" ]]; then
   "$SCRIPT_PATH"
 else

circle.yml

@@ -3,7 +3,7 @@ jobs:
   build:
     working_directory: ~/project
     docker:
-      - image: circleci/ruby:2.5
+      - image: circleci/ruby
         environment:
           BUNDLE_JOBS: 3
           BUNDLE_RETRY: 3
@@ -12,19 +12,47 @@ jobs:
     steps:
       - checkout
 
+      - run:
+          name: Environment Setup
+          command: |
+            printf "%s\n" 'export CI_RUBY_VERSION=$(cat ".ruby-version" | tr -d "\n")' >> $BASH_ENV
+
       - type: cache-restore
-        name: Bundler Cache Restore
+        name: Ruby Restore
-        key: bundle-{{ checksum "Gemfile" }}
+        key: ruby-{{checksum ".ruby-version"}}
+
+      - run:
+          name: Ruby Install
+          command: |
+            curl https://cache.ruby-lang.org/pub/ruby/${CI_RUBY_VERSION::-2}/ruby-$CI_RUBY_VERSION.tar.bz2 > ../ruby-$CI_RUBY_VERSION.tar.gz
+            cd ..
+            tar --extract --bzip2 --verbose --file ruby-$CI_RUBY_VERSION.tar.gz
+            cd ruby-$CI_RUBY_VERSION
+            ./configure
+            make
+            make update-gems
+            make extract-gems
+            sudo make install
+
+      - type: cache-save
+        name: Ruby Store
+        key: ruby-{{checksum ".ruby-version"}}
+        paths:
+          - ../ruby-$CI_RUBY_VERSION
+
+      - type: cache-restore
+        name: Bundler Restore
+        key: bundler-{{checksum "Gemfile"}}
 
       - run:
           name: Bundler Install
           command: |
             gem update --system
-            bundle check || bundle install
+            bundle install --path vendor/bundle
 
       - type: cache-save
-        name: Bundler Cache Store
+        name: Bundler Store
-        key: bundle-{{ checksum "Gemfile" }}
+        key: bundler-{{checksum "Gemfile"}}
         paths:
           - vendor/bundle
 

lib/installers.sh

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Defines software installer functions.
 
 # Installs an application via a DMG file.
@@ -10,11 +9,11 @@ install_dmg_app() {
   local mount_point="/Volumes/$2"
   local app_name="$3"
   local install_path=$(get_install_path "$app_name")
-  local download_file="download.dmg"
+  local work_file="download.dmg"
 
   if [[ ! -e "$install_path" ]]; then
-    download_installer "$url" "$download_file"
+    download_file "$url" "$work_file"
-    mount_image "$MAC_OS_WORK_PATH/$download_file"
+    mount_image "$MAC_OS_WORK_PATH/$work_file"
     install_app "$mount_point" "$app_name"
     unmount_image "$mount_point"
     verify_application "$app_name"
@@ -29,11 +28,11 @@ install_dmg_pkg() {
   local mount_point="/Volumes/$2"
   local app_name="$3"
   local install_path=$(get_install_path "$app_name")
-  local download_file="download.dmg"
+  local work_file="download.dmg"
 
   if [[ ! -e "$install_path" ]]; then
-    download_installer "$url" "$download_file"
+    download_file "$url" "$work_file"
-    mount_image "$MAC_OS_WORK_PATH/$download_file"
+    mount_image "$MAC_OS_WORK_PATH/$work_file"
     install_pkg "$mount_point" "$app_name"
     unmount_image "$mount_point"
     printf "Installed: $app_name.\n"
@@ -48,15 +47,15 @@ install_zip_app() {
   local url="$1"
   local app_name="$2"
   local install_path=$(get_install_path "$app_name")
-  local download_file="download.zip"
+  local work_file="download.zip"
 
   if [[ ! -e "$install_path" ]]; then
-    download_installer "$url" "$download_file"
+    download_file "$url" "$work_file"
 
     (
       printf "Preparing...\n"
       cd "$MAC_OS_WORK_PATH"
-      unzip -q "$download_file"
+      unzip -q "$work_file"
       find . -type d -name "$app_name" -print -exec cp -pR {} . > /dev/null 2>&1 \;
     )
 
@@ -67,6 +66,30 @@ install_zip_app() {
 }
 export -f install_zip_app
 
+# Installs a package via a zip file.
+# Parameters: $1 (required) - URL, $2 (required) - Application name.
+install_zip_pkg() {
+  local url="$1"
+  local app_name="$2"
+  local install_path=$(get_install_path "$app_name")
+  local work_file="download.zip"
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$url" "$work_file"
+
+    (
+      printf "Preparing...\n"
+      cd "$MAC_OS_WORK_PATH"
+      unzip -q "$work_file"
+    )
+
+    install_pkg "$MAC_OS_WORK_PATH" "$app_name"
+    printf "Installed: $app_name.\n"
+    verify_application "$app_name"
+  fi
+}
+export -f install_zip_pkg
+
 # Installs an application via a tar file.
 # Parameters: $1 (required) - URL, $2 (required) - Application name, $3 (required) - Decompress options.
 install_tar_app() {
@@ -74,15 +97,15 @@ install_tar_app() {
   local app_name="$2"
   local options="$3"
   local install_path=$(get_install_path "$app_name")
-  local download_file="download.tar"
+  local work_file="download.tar"
 
   if [[ ! -e "$install_path" ]]; then
-    download_installer "$url" "$download_file"
+    download_file "$url" "$work_file"
 
     (
       printf "Preparing...\n"
       cd "$MAC_OS_WORK_PATH"
-      tar "$options" "$download_file"
+      tar "$options" "$work_file"
     )
 
     install_app "$MAC_OS_WORK_PATH" "$app_name"
@@ -92,29 +115,23 @@ install_tar_app() {
 }
 export -f install_tar_app
 
-# Installs a package via a zip file.
+# Installs program (single file).
-# Parameters: $1 (required) - URL, $2 (required) - Application name.
+# Parameters: $1 (required) - URL, $2 (required) - Program name.
-install_zip_pkg() {
+install_program() {
   local url="$1"
-  local app_name="$2"
+  local program_name="$2"
-  local install_path=$(get_install_path "$app_name")
+  local install_path=$(get_install_path "$program_name")
-  local download_file="download.zip"
 
   if [[ ! -e "$install_path" ]]; then
-    download_installer "$url" "$download_file"
+    printf "Installing: $install_path...\n"
-
+    download_file "$url" "$program_name"
-    (
+    mv "$MAC_OS_WORK_PATH/$program_name" "$install_path"
-      printf "Preparing...\n"
+    chmod 755 "$install_path"
-      cd "$MAC_OS_WORK_PATH"
+    printf "Installed: $program_name.\n"
-      unzip -q "$download_file"
+    verify_application "$program_name"
-    )
-
-    install_pkg "$MAC_OS_WORK_PATH" "$app_name"
-    printf "Installed: $app_name.\n"
-    verify_application "$app_name"
   fi
 }
-export -f install_zip_pkg
+export -f install_program
 
 # Installs application code from a Git repository.
 # Parameters: $1 (required) - Repository URL, $2 (required) - Install path, $3 (optional) - Git clone options.
@@ -155,9 +172,9 @@ install_git_project() {
 }
 export -f install_git_project
 
-# Downloads an installer to local disk.
+# Downloads remote file to local disk.
-# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (required) - HTTP header.
+# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (optional) - HTTP header.
-download_installer() {
+download_file() {
   local url="$1"
   local file_name="$2"
   local http_header="$3"
@@ -167,38 +184,7 @@ download_installer() {
   mkdir $MAC_OS_WORK_PATH
   curl --header "$http_header" --location --retry 3 --retry-delay 5 --fail --silent --show-error "$url" >> "$MAC_OS_WORK_PATH/$file_name"
 }
-export -f download_installer
+export -f download_file
-
-# Downloads an installer to the $HOME/Downloads folder for manual use.
-# Parameters: $1 (required) - URL, $2 (required) - File name.
-download_only() {
-  if [[ -e "$HOME/Downloads/$2" ]]; then
-    printf "Downloaded: $2.\n"
-  else
-    printf "Downloading $1...\n"
-    download_installer "$1" "$2"
-    mv "$MAC_OS_WORK_PATH/$2" "$HOME/Downloads"
-  fi
-}
-export -f download_only
-
-# Installs a single file.
-# Parameters: $1 (required) - URL, $2 (required) - Install path.
-install_file() {
-  local file_url="$1"
-  local file_name=$(get_file_name "$1")
-  local install_path="$2"
-
-  if [[ ! -e "$install_path" ]]; then
-    printf "Installing: $install_path...\n"
-    download_installer "$file_url" "$file_name"
-    mkdir -p $(dirname "$install_path")
-    mv "$MAC_OS_WORK_PATH/$file_name" "$install_path"
-    printf "Installed: $file_name.\n"
-    verify_path "$install_path"
-  fi
-}
-export -f install_file
 
 # Installs an application.
 # Parameters: $1 (required) - Application source path, $2 (required) - Application name.
@@ -209,6 +195,8 @@ install_app() {
   printf "Installing: $install_root/$2...\n"
 
   case $file_extension in
+    '')
+      cp -a "$1/$2" "$install_root";;
     'app')
       cp -a "$1/$2" "$install_root";;
     'prefPane')

lib/options.sh

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Defines command line prompt options.
 
 # Process option selection.

lib/reinstallers.sh

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Defines reinstall functions.
 
 # Reinstall application.

lib/settings.sh

@@ -1,21 +1,11 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
-# Defines global settings.
-
-# SETTINGS
-# General
 set -o nounset
 set -o errexit
 set -o pipefail
 IFS=$'\n\t'
 
-# Globals
 export MAC_OS_BOOT_DISK_CREATOR="/Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia"
 export MAC_OS_BOOT_DISK_PATH="/Volumes/Untitled"
 export MAC_OS_WORK_PATH=/tmp/downloads
 export MAC_OS_CONFIG_PATH="../mac_os-config"
-
-# Java
-export JAVA_LABEL="Java SE Development Kit"
-export JAVA_DOWNLOAD_URL="https://www.oracle.com/technetwork/java/javase/downloads/jdk10-downloads-4416644.html"

lib/uninstallers.sh

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Defines uninstall functions.
 
 # Uninstalls selected application.

lib/utilities.sh

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Defines general utility functions.
 
 # Answers the full install path (including file name) for file name.

lib/verifiers.sh

@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Defines verification/validation functions.
 
 # Checks for missing Homebrew formulas.