Added version release notes

Necessary to ensure machines are properly configured for running these
scripts on either Apple Silicon or Intel based machines.

.circleci/config.yml

@@ -0,0 +1,31 @@
+version: 2.1
+jobs:
+  build:
+    working_directory: ~/project
+    docker:
+      - image: bkuhlmann/alpine-ruby:latest
+    steps:
+      - checkout
+
+      - restore_cache:
+          name: Bundler Restore
+          keys:
+            - gem-cache-{{.Branch}}-{{checksum "Gemfile"}}
+            - gem-cache-
+
+      - run:
+          name: Bundler Install
+          command: |
+            gem update --system
+            bundle config set path "vendor/bundle"
+            bundle install
+
+      - save_cache:
+          name: Bundler Store
+          key: gem-cache-{{.Branch}}-{{checksum "Gemfile"}}
+          paths:
+            - vendor/bundle
+
+      - run:
+          name: Build
+          command: bundle exec rake

CHANGES.adoc

@@ -1,5 +1,19 @@
 = Changes
 
+== 11.2.0 (2021-02-27)
+
+* Added Apple Silicon instructions - Brooke Kuhlmann
+* Added CPU utility function - Brooke Kuhlmann
+* Added Homebrew install function - Brooke Kuhlmann
+* Added Homebrew utility path functions - Brooke Kuhlmann
+* Added Rosetta to development tools install script - Brooke Kuhlmann
+* Added environment configuration for scripts - Brooke Kuhlmann
+* Updated to Circle CI 2.1.0 - Brooke Kuhlmann
+* Updated to Docker Alpine Ruby image - Brooke Kuhlmann
+* Refactored installer functions to be alphabetically sorted - Brooke Kuhlmann
+* Refactored utility functions to be alphabetically sorted - Brooke Kuhlmann
+* Refactored verifier functions to be alphabetically sorted - Brooke Kuhlmann
+
 == 11.1.1 (2021-01-10)
 
 * Fixed brew formulae list error - Brooke Kuhlmann

README.adoc

@@ -57,7 +57,7 @@ To install, run:
 ----
 git clone https://github.com/bkuhlmann/mac_os.git
 cd mac_os
-git checkout 11.1.1
+git checkout 11.2.0
 ----
 
 == Usage
@@ -126,7 +126,7 @@ macOS Boot Disk Tips
 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.
+  3. Hold the POWER (Silicon) or OPTION (Intel) key before the Apple logo appears.
   4. Select the USB boot disk from the menu.
   5. Use Disk Utility to delete and/or erase the hard drive including associated partitions.
   6. Use Disk Utility to create a single "APFS" drive as a "GUID Partition Table".
@@ -134,7 +134,7 @@ macOS Boot Disk Usage:
 
 macOS Boot Disk Recovery:
   1. Start/restart the machine.
-  2. Hold down the COMMAND+R keys before the Apple logo appears.
+  2. Hold the POWER (Silicon) or COMMAND+R (Intel) keys before the Apple logo appears.
   3. Wait for the macOS installer to load from the recovery partition.
   4. Use the dialog options to launch Disk Utility, reinstall the system, etc.
 ....
@@ -172,16 +172,16 @@ link:https://www.alchemists.io/projects/mac_os-config[macOS Config] project for
   upgrading as you might experience various errors with Apple not being able to detect an internet
   connection which prevents the installer from working.
 * When using the boot disk and the installer fails in some catestrophic manner, reboot the machine
-  into recovery mode (i.e. `COMMAND + R`) to download and install the last operating system used.
-  Alternatively, you can also use `COMMAND + OPTION + R` to attemp to download the latest operating
-  system.
+  into recovery mode -- `POWER` (Silicon) or `COMMAND + R` (Intel) buttons -- to download and
+  install the last operating system used. Alternatively, you can also use `COMMAND + OPTION + R`
+  (Intel) to attemp to download the latest operating system.
 * 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).
+  the `OPTION + COMMAND + R + P` (Intel) 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).
 
 == Development
 

bin/create_boot_disk

@@ -9,14 +9,14 @@ printf "  - Use Disk Utility to label the USB drive as \"Untitled\".\n"
 printf "\nmacOS Boot Disk Usage:\n"
 printf "  1. Insert the USB boot disk into the machine to be upgraded.\n"
 printf "  2. Reboot the machine.\n"
-printf "  3. Hold down the OPTION key before the Apple logo appears.\n"
+printf "  3. Hold the POWER (Silicon) or OPTION (Intel) key before the Apple logo appears.\n"
 printf "  4. Select the USB boot disk from the menu.\n"
 printf "  5. Use Disk Utility to delete and/or erase the hard drive including associated partitions.\n"
 printf "  6. Use Disk Utility to create a single \"APFS\" drive as a \"GUID Partition Table\".\n"
 printf "  7. Install the new operating system.\n"
 printf "\nmacOS Boot Disk Recovery:\n"
 printf "  1. Start/restart the machine.\n"
-printf "  2. Hold down the COMMAND+R keys before the Apple logo appears.\n"
+printf "  2. Hold the POWER (Silicon) or COMMAND+R (Intel) keys before the Apple logo appears.\n"
 printf "  3. Wait for the macOS installer to load from the recovery partition.\n"
 printf "  4. Use the dialog options to launch Disk Utility, reinstall the system, etc.\n"
 

bin/install_dev_tools

@@ -11,3 +11,7 @@ if [[ "$xcode_response" != "y" ]]; then
   printf "ERROR: Xcode CLI tools must be installed before proceeding.\n"
   exit 1
 fi
+
+if [[ -n "$(get_cpu)" ]]; then
+  softwareupdate --install-rosetta
+fi

bin/run

@@ -23,6 +23,8 @@ else
   exit 1
 fi
 
+configure_environment
+
 while true; do
   if [[ $# == 0 ]]; then
     printf "\nUsage: run OPTION\n"

circle.yml

@@ -1,62 +0,0 @@
-version: 2
-jobs:
-  build:
-    working_directory: ~/project
-    docker:
-      - image: circleci/ruby
-        environment:
-          BUNDLE_JOBS: 3
-          BUNDLE_RETRY: 3
-          BUNDLE_PATH: vendor/bundle
-          EDITOR: vim
-    steps:
-      - checkout
-
-      - run:
-          name: Environment Setup
-          command: |
-            printf "%s\n" 'export CI_RUBY_VERSION=$(cat ".ruby-version" | tr -d "\n")' >> $BASH_ENV
-
-      - type: cache-restore
-        name: Ruby Restore
-        key: ruby-{{checksum ".ruby-version"}}
-
-      - run:
-          name: Ruby Install
-          command: |
-            cd ..
-            curl https://cache.ruby-lang.org/pub/ruby/${CI_RUBY_VERSION::-2}/ruby-$CI_RUBY_VERSION.tar.gz > ruby-$CI_RUBY_VERSION.tar.gz
-            tar --extract --gzip --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 config set path "vendor/bundle"
-            bundle install
-
-      - type: cache-save
-        name: Bundler Store
-        key: bundler-{{checksum "Gemfile"}}
-        paths:
-          - vendor/bundle
-
-      - run:
-          name: Build
-          command: bundle exec rake

lib/installers.sh

@@ -2,6 +2,43 @@
 
 # Defines software installer functions.
 
+# Downloads remote file to local disk.
+# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (optional) - HTTP header.
+download_file() {
+  local url="$1"
+  local file_name="$2"
+  local http_header="$3"
+
+  printf "%s\n" "Downloading $1..."
+  clean_work_path
+  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_file
+
+# Installs an application.
+# Parameters: $1 (required) - Application source path, $2 (required) - Application name.
+install_app() {
+  local install_root=$(get_install_root "$2")
+  local file_extension=$(get_extension "$2")
+
+  printf "Installing: $install_root/$2...\n"
+
+  case $file_extension in
+    '')
+      cp -a "$1/$2" "$install_root";;
+    'app')
+      cp -a "$1/$2" "$install_root";;
+    'prefPane')
+      sudo cp -pR "$1/$2" "$install_root";;
+    'qlgenerator')
+      sudo cp -pR "$1/$2" "$install_root" && qlmanage -r;;
+    *)
+      printf "ERROR: Unknown file extension: $file_extension.\n"
+  esac
+}
+export -f install_app
+
 # Installs an application via a DMG file.
 # Parameters: $1 (required) - URL, $2 (required) - Mount path, $3 (required) - Application name.
 install_dmg_app() {
@@ -41,6 +78,124 @@ install_dmg_pkg() {
 }
 export -f install_dmg_pkg
 
+# Installs a single file.
+# Parameters: $1 (required) - URL, $2 (required) - Install path.
+install_file() {
+  local file_url="$1"
+  local file_name=$(get_basename "$1")
+  local install_path="$2"
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$file_url" "$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 application code from a Git repository.
+# Parameters: $1 (required) - Repository URL, $2 (required) - Install path, $3 (optional) - Git clone options.
+install_git_app() {
+  local repository_url="$1"
+  local app_name=$(get_basename "$2")
+  local install_path="$2"
+  local options="--quiet"
+
+  if [[ -n "$3" ]]; then
+    local options="$options $3"
+  fi
+
+  if [[ ! -e "$install_path" ]]; then
+    printf "Installing: $install_path/$app_name...\n"
+    git clone $options "$repository_url" "$install_path"
+    printf "Installed: $app_name.\n"
+    verify_path "$install_path"
+  fi
+}
+export -f install_git_app
+
+# Installs settings from a Git repository.
+# Parameters: $1 (required) - Repository URL, $2 (required) - Repository version, $3 (required) - Project directory, $4 (required) - Script to run (including any arguments).
+install_git_project() {
+  local repo_url="$1"
+  local repo_version="$2"
+  local project_dir="$3"
+  local script="$4"
+
+  git clone "$repo_url"
+  (
+    cd "$project_dir"
+    git -c advice.detachedHead=false checkout "$repo_version"
+    eval "$script"
+  )
+  rm -rf "$project_dir"
+}
+export -f install_git_project
+
+# Installs Homebrew.
+# Parameters: None.
+install_homebrew() {
+  if ! command -v brew > /dev/null; then
+    /bin/bash -c "$(curl --location --fail --silent --show-error https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+  fi
+}
+export -f install_homebrew
+
+# Installs a package.
+# Parameters: $1 (required) - Package source path, $2 (required) - Application name.
+install_pkg() {
+  local install_root=$(get_install_root "$2")
+
+  printf "Installing: $install_root/$2...\n"
+  local package=$(sudo find "$1" -maxdepth 1 -type f -name "*.pkg" -o -name "*.mpkg")
+  sudo installer -pkg "$package" -target /
+}
+export -f install_pkg
+
+# Installs program (single file).
+# Parameters: $1 (required) - URL, $2 (required) - Program name.
+install_program() {
+  local url="$1"
+  local program_name="$2"
+  local install_path=$(get_install_path "$program_name")
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$url" "$program_name"
+    mv "$MAC_OS_WORK_PATH/$program_name" "$install_path"
+    chmod 755 "$install_path"
+    printf "Installed: $program_name.\n"
+    verify_application "$program_name"
+  fi
+}
+export -f install_program
+
+# Installs an application via a tar file.
+# Parameters: $1 (required) - URL, $2 (required) - Application name, $3 (required) - Decompress options.
+install_tar_app() {
+  local url="$1"
+  local app_name="$2"
+  local options="$3"
+  local install_path=$(get_install_path "$app_name")
+  local work_file="download.tar"
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$url" "$work_file"
+
+    (
+      printf "Preparing...\n"
+      cd "$MAC_OS_WORK_PATH"
+      tar "$options" "$work_file"
+    )
+
+    install_app "$MAC_OS_WORK_PATH" "$app_name"
+    printf "Installed: $app_name.\n"
+    verify_application "$app_name"
+  fi
+}
+export -f install_tar_app
+
 # Installs an application via a zip file.
 # Parameters: $1 (required) - URL, $2 (required) - Application name.
 install_zip_app() {
@@ -90,152 +245,6 @@ install_zip_pkg() {
 }
 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() {
-  local url="$1"
-  local app_name="$2"
-  local options="$3"
-  local install_path=$(get_install_path "$app_name")
-  local work_file="download.tar"
-
-  if [[ ! -e "$install_path" ]]; then
-    download_file "$url" "$work_file"
-
-    (
-      printf "Preparing...\n"
-      cd "$MAC_OS_WORK_PATH"
-      tar "$options" "$work_file"
-    )
-
-    install_app "$MAC_OS_WORK_PATH" "$app_name"
-    printf "Installed: $app_name.\n"
-    verify_application "$app_name"
-  fi
-}
-export -f install_tar_app
-
-# Installs program (single file).
-# Parameters: $1 (required) - URL, $2 (required) - Program name.
-install_program() {
-  local url="$1"
-  local program_name="$2"
-  local install_path=$(get_install_path "$program_name")
-
-  if [[ ! -e "$install_path" ]]; then
-    download_file "$url" "$program_name"
-    mv "$MAC_OS_WORK_PATH/$program_name" "$install_path"
-    chmod 755 "$install_path"
-    printf "Installed: $program_name.\n"
-    verify_application "$program_name"
-  fi
-}
-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.
-install_git_app() {
-  local repository_url="$1"
-  local app_name=$(get_basename "$2")
-  local install_path="$2"
-  local options="--quiet"
-
-  if [[ -n "$3" ]]; then
-    local options="$options $3"
-  fi
-
-  if [[ ! -e "$install_path" ]]; then
-    printf "Installing: $install_path/$app_name...\n"
-    git clone $options "$repository_url" "$install_path"
-    printf "Installed: $app_name.\n"
-    verify_path "$install_path"
-  fi
-}
-export -f install_git_app
-
-# Installs settings from a Git repository.
-# Parameters: $1 (required) - Repository URL, $2 (required) - Repository version, $3 (required) - Project directory, $4 (required) - Script to run (including any arguments).
-install_git_project() {
-  local repo_url="$1"
-  local repo_version="$2"
-  local project_dir="$3"
-  local script="$4"
-
-  git clone "$repo_url"
-  (
-    cd "$project_dir"
-    git -c advice.detachedHead=false checkout "$repo_version"
-    eval "$script"
-  )
-  rm -rf "$project_dir"
-}
-export -f install_git_project
-
-# Installs a single file.
-# Parameters: $1 (required) - URL, $2 (required) - Install path.
-install_file() {
-  local file_url="$1"
-  local file_name=$(get_basename "$1")
-  local install_path="$2"
-
-  if [[ ! -e "$install_path" ]]; then
-    download_file "$file_url" "$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
-
-# Downloads remote file to local disk.
-# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (optional) - HTTP header.
-download_file() {
-  local url="$1"
-  local file_name="$2"
-  local http_header="$3"
-
-  printf "%s\n" "Downloading $1..."
-  clean_work_path
-  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_file
-
-# Installs an application.
-# Parameters: $1 (required) - Application source path, $2 (required) - Application name.
-install_app() {
-  local install_root=$(get_install_root "$2")
-  local file_extension=$(get_extension "$2")
-
-  printf "Installing: $install_root/$2...\n"
-
-  case $file_extension in
-    '')
-      cp -a "$1/$2" "$install_root";;
-    'app')
-      cp -a "$1/$2" "$install_root";;
-    'prefPane')
-      sudo cp -pR "$1/$2" "$install_root";;
-    'qlgenerator')
-      sudo cp -pR "$1/$2" "$install_root" && qlmanage -r;;
-    *)
-      printf "ERROR: Unknown file extension: $file_extension.\n"
-  esac
-}
-export -f install_app
-
-# Installs a package.
-# Parameters: $1 (required) - Package source path, $2 (required) - Application name.
-install_pkg() {
-  local install_root=$(get_install_root "$2")
-
-  printf "Installing: $install_root/$2...\n"
-  local package=$(sudo find "$1" -maxdepth 1 -type f -name "*.pkg" -o -name "*.mpkg")
-  sudo installer -pkg "$package" -target /
-}
-export -f install_pkg
-
 # Mounts a disk image.
 # Parameters: $1 (required) - Image path.
 mount_image() {

lib/utilities.sh

@@ -15,43 +15,12 @@ caffeinate_machine() {
 }
 export -f caffeinate_machine
 
-# Answers the full install path (including file name) for file name.
-# Parameters: $1 (required) - The file name.
-get_install_path() {
-  local file_name="$1"
-  local install_path=$(get_install_root "$file_name")
-  printf "$install_path/$file_name"
-}
-export -f get_install_path
-
 # Cleans work path for temporary processing of installs.
 clean_work_path() {
   rm -rf "$MAC_OS_WORK_PATH"
 }
 export -f clean_work_path
 
-# Answers the root install path for file name.
-# Parameters: $1 (required) - The file name.
-get_install_root() {
-  local file_name="$1"
-  local file_extension=$(get_extension "$file_name")
-
-  # Dynamically build the install path based on file extension.
-  case $file_extension in
-    '')
-      printf "/usr/local/bin";;
-    'app')
-      printf "/Applications";;
-    'prefPane')
-      printf "/Library/PreferencePanes";;
-    'qlgenerator')
-      printf "/Library/QuickLook";;
-    *)
-      printf "/tmp/unknown";;
-  esac
-}
-export -f get_install_root
-
 # Answers the file or directory basename.
 # Parameters: $1 (required) - The file path.
 get_basename() {
@@ -59,6 +28,13 @@ get_basename() {
 }
 export -f get_basename
 
+# Answers current CPU.
+# Parameters: None.
+get_cpu() {
+  printf "%s" "$(system_profiler SPHardwareDataType | awk '/Chip/ {print $3}')"
+}
+export -f get_cpu
+
 # Answers the file extension.
 # Parameters: $1 (required) - The file name.
 get_extension() {
@@ -72,3 +48,71 @@ get_extension() {
   fi
 }
 export -f get_extension
+
+# Answers Homebrew root path.
+# Parameters: None.
+get_homebrew_root() {
+  if [[ -n "$(get_cpu)" ]]; then
+    printf "%s" "/opt/homebrew"
+  else
+    printf "%s" "/usr/local/Homebrew"
+  fi
+}
+export -f get_homebrew_root
+
+# Answers Homebrew binary root path.
+# Parameters: None.
+get_homebrew_bin_root() {
+  if [[ -n "$(get_cpu)" ]]; then
+    printf "%s" "/opt/homebrew/bin"
+  else
+    printf "%s" "/usr/local/bin"
+  fi
+}
+export -f get_homebrew_bin_root
+
+# Answers the full install path (including file name) for file name.
+# Parameters: $1 (required) - The file name.
+get_install_path() {
+  local file_name="$1"
+  local install_path=$(get_install_root "$file_name")
+  printf "$install_path/$file_name"
+}
+export -f get_install_path
+
+# Answers the root install path for file name.
+# Parameters: $1 (required) - The file name.
+get_install_root() {
+  local file_name="$1"
+  local file_extension=$(get_extension "$file_name")
+
+  # Dynamically build the install path based on file extension.
+  case $file_extension in
+    '')
+      printf "$(get_homebrew_bin_root)";;
+    'app')
+      printf "/Applications";;
+    'prefPane')
+      printf "/Library/PreferencePanes";;
+    'qlgenerator')
+      printf "/Library/QuickLook";;
+    *)
+      printf "/tmp/unknown";;
+  esac
+}
+export -f get_install_root
+
+# Configures shell for new machines and ensures PATH is properly configured for running scripts.
+# Parameters: None.
+configure_environment() {
+  if [[ ! -s "$HOME/.bash_profile" ]]; then
+    printf "%s\n" "if [ -f ~/.bashrc ]; then . ~/.bashrc; fi" > "$HOME/.bash_profile"
+  fi
+
+  if [[ ! -s "$HOME/.bashrc" ]]; then
+    printf "%s\n" 'export PATH="/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"' > "$HOME/.bashrc"
+  fi
+
+  export PATH="/opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/opt/homebrew/sbin:/usr/local/sbin:/usr/sbin:/sbin:$PATH"
+}
+export -f configure_environment

lib/verifiers.sh

@@ -2,6 +2,85 @@
 
 # Defines verification/validation functions.
 
+# Checks for missing App Store applications.
+verify_app_store_applications() {
+  printf "\nChecking App Store applications...\n"
+
+  local applications="$(mas list)"
+
+  while read line; do
+    if [[ "$line" == "mas install"* ]]; then
+      local application=$(printf "$line" | awk '{print $3}')
+      verify_listed_application "$application" "${applications[*]}"
+    fi
+  done < "$MAC_OS_CONFIG_PATH/bin/install_app_store"
+
+  printf "App Store check complete.\n"
+}
+export -f verify_app_store_applications
+
+# Verifies application exists.
+# Parameters: $1 (required) - The file name.
+verify_application() {
+  local file_name="$1"
+  local install_path=$(get_install_path "$file_name")
+
+  if [[ ! -e "$install_path" ]]; then
+    printf " - Missing: $file_name\n"
+  fi
+}
+export -f verify_application
+
+# Checks for missing applications suffixed by "APP_NAME" as defined in settings.sh.
+verify_applications() {
+  printf "\nChecking application software...\n"
+
+  # Only use environment keys that end with "APP_NAME".
+  local file_names=$(set | awk -F "=" '{print $1}' | grep ".*APP_NAME")
+
+  # For each application name, check to see if the application is installed. Otherwise, skip.
+  for name in $file_names; do
+    verify_application "${!name}"
+  done
+
+  printf "Application software check complete.\n"
+}
+export -f verify_applications
+
+# Checks for missing extensions suffixed by "EXTENSION_PATH" as defined in settings.sh.
+verify_extensions() {
+  printf "\nChecking application extensions...\n"
+
+  # Only use environment keys that end with "EXTENSION_PATH".
+  local extensions=$(set | awk -F "=" '{print $1}' | grep ".*EXTENSION_PATH")
+
+  # For each extension, check to see if the extension is installed. Otherwise, skip.
+  for extension in $extensions; do
+    # Evaluate/extract the key (extension) value and pass it on for verfication.
+    verify_path "${!extension}"
+  done
+
+  printf "Application extension check complete.\n"
+}
+export -f verify_extensions
+
+# Checks for missing Homebrew casks.
+verify_homebrew_casks() {
+  printf "\nChecking Homebrew casks...\n"
+
+  local applications="$(brew list --casks)"
+
+  while read line; do
+    if [[ "$line" == "brew cask install"* ]]; then
+      local application=$(printf "$line" | awk '{print $4}')
+      verify_listed_application "$application" "${applications[*]}"
+    fi
+  done < "$MAC_OS_CONFIG_PATH/bin/install_homebrew_casks"
+
+  printf "Homebrew cask check complete.\n"
+}
+export -f verify_homebrew_casks
+
 # Checks for missing Homebrew formulas.
 verify_homebrew_formulas() {
   printf "Checking Homebrew formulas...\n"
@@ -25,40 +104,6 @@ verify_homebrew_formulas() {
 }
 export -f verify_homebrew_formulas
 
-# Checks for missing Homebrew casks.
-verify_homebrew_casks() {
-  printf "\nChecking Homebrew casks...\n"
-
-  local applications="$(brew list --casks)"
-
-  while read line; do
-    if [[ "$line" == "brew cask install"* ]]; then
-      local application=$(printf "$line" | awk '{print $4}')
-      verify_listed_application "$application" "${applications[*]}"
-    fi
-  done < "$MAC_OS_CONFIG_PATH/bin/install_homebrew_casks"
-
-  printf "Homebrew cask check complete.\n"
-}
-export -f verify_homebrew_casks
-
-# Checks for missing App Store applications.
-verify_app_store_applications() {
-  printf "\nChecking App Store applications...\n"
-
-  local applications="$(mas list)"
-
-  while read line; do
-    if [[ "$line" == "mas install"* ]]; then
-      local application=$(printf "$line" | awk '{print $3}')
-      verify_listed_application "$application" "${applications[*]}"
-    fi
-  done < "$MAC_OS_CONFIG_PATH/bin/install_app_store"
-
-  printf "App Store check complete.\n"
-}
-export -f verify_app_store_applications
-
 # Verifies listed application exists.
 # Parameters: $1 (required) - The current application, $2 (required) - The application list.
 verify_listed_application() {
@@ -71,51 +116,6 @@ verify_listed_application() {
 }
 export -f verify_listed_application
 
-# Checks for missing applications suffixed by "APP_NAME" as defined in settings.sh.
-verify_applications() {
-  printf "\nChecking application software...\n"
-
-  # Only use environment keys that end with "APP_NAME".
-  local file_names=$(set | awk -F "=" '{print $1}' | grep ".*APP_NAME")
-
-  # For each application name, check to see if the application is installed. Otherwise, skip.
-  for name in $file_names; do
-    verify_application "${!name}"
-  done
-
-  printf "Application software check complete.\n"
-}
-export -f verify_applications
-
-# Verifies application exists.
-# Parameters: $1 (required) - The file name.
-verify_application() {
-  local file_name="$1"
-  local install_path=$(get_install_path "$file_name")
-
-  if [[ ! -e "$install_path" ]]; then
-    printf " - Missing: $file_name\n"
-  fi
-}
-export -f verify_application
-
-# Checks for missing extensions suffixed by "EXTENSION_PATH" as defined in settings.sh.
-verify_extensions() {
-  printf "\nChecking application extensions...\n"
-
-  # Only use environment keys that end with "EXTENSION_PATH".
-  local extensions=$(set | awk -F "=" '{print $1}' | grep ".*EXTENSION_PATH")
-
-  # For each extension, check to see if the extension is installed. Otherwise, skip.
-  for extension in $extensions; do
-    # Evaluate/extract the key (extension) value and pass it on for verfication.
-    verify_path "${!extension}"
-  done
-
-  printf "Application extension check complete.\n"
-}
-export -f verify_extensions
-
 # Verifies path exists.
 # Parameters: $1 (required) - The path.
 verify_path() {