Added version release notes.

[Details](https://is.gd/mGVQIu).

Merry Christmas!

.ruby-version

@@ -1 +1 @@
-2.5.1
+2.7.0

CHANGES.md

@@ -1,3 +1,68 @@
+# 8.0.1 (2020-01-01)
+
+- Added Startup Security Utility to README.
+- Updated README screencast.
+- Updated to Ruby 2.7.0.
+- Refactored caffeinate machine function to process grep.
+
+# 8.0.0 (2019-10-12)
+
+- Updated to Rake 13.0.0.
+- Updated to Ruby 2.6.5.
+- Updated to macOS Catalina.
+
+# 7.2.1 (2019-09-01)
+
+- Updated README screencast tutorial.
+- Updated to Ruby 2.6.4.
+
+# 7.2.0 (2019-08-01)
+
+- Added file install function.
+
+# 7.1.2 (2019-06-01)
+
+- Updated contributing documentation.
+- Updated to Git Cop 3.5.0.
+
+# 7.1.1 (2019-05-01)
+
+- Added project icon to README.
+- Updated to Ruby 2.6.3.
+
+# 7.1.0 (2019-04-01)
+
+- Added XCode installer fix to troubleshooting section.
+- Updated to Ruby 2.6.1.
+- Updated to Ruby 2.6.2.
+
+# 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.
+- Updated boot disk creation to macOS Mojave.
+- Updated to Contributor Covenant Code of Conduct 1.4.1.
+- Updated to Java SE Development Kit 10.
+
 # 5.0.0 (2018-08-01)
 
 - Fixed Markdown ordered list numbering.

CODE_OF_CONDUCT.md

@@ -2,10 +2,11 @@
 
 ## Our Pledge
 
-In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making
-participation in our project and our community a harassment-free experience for everyone, regardless of age, body size,
-disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race,
-religion, or sexual identity and orientation.
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers
+pledge to making participation in our project and our community a harassment-free experience for
+everyone, regardless of age, body size, disability, ethnicity, sex characteristics, gender identity
+and expression, level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
 
 ## Our Standards
 
@@ -22,40 +23,43 @@ Examples of unacceptable behavior by participants include:
 * The use of sexualized language or imagery and unwelcome sexual attention or advances
 * Trolling, insulting/derogatory comments, and personal or political attacks
 * Public or private harassment
-* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Publishing others' private information, such as a physical or electronic address, without explicit
+  permission
 * Other conduct which could reasonably be considered inappropriate in a professional setting
 
 ## Our Responsibilities
 
-Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take
-appropriate and fair corrective action in response to any instances of unacceptable behavior.
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are
+expected to take appropriate and fair corrective action in response to any instances of unacceptable
+behavior.
 
-Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits,
-issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any
-contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits,
+code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or
+to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
 
 ## Scope
 
-This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the
-project or its community. Examples of representing a project or community include using an official project e-mail
-address, posting via an official social media account, or acting as an appointed representative at an online or offline
-event. Representation of a project may be further defined and clarified by project maintainers.
+This Code of Conduct applies both within project spaces and in public spaces when an individual is
+representing the project or its community. Examples of representing a project or community include
+using an official project e-mail address, posting via an official social media account, or acting as
+an appointed representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
 
 ## Enforcement
 
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at
-[brooke@alchemists.io](mailto:brooke@alchemists.io). All complaints will be reviewed and investigated and will result in
-a response that is deemed necessary and appropriate to the circumstances. The project team is obligated to maintain
-confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be
-posted separately.
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting
+the project team at [Brooke Kuhlmann](mailto:brooke@alchemists.io). All complaints will be reviewed
+and investigated and will result in a response that is deemed necessary and appropriate to the
+circumstances. The project team is obligated to maintain confidentiality with regard to the reporter
+of an incident. Further details of specific enforcement policies may be posted separately.
 
-Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent
-repercussions as determined by other members of the project's leadership.
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face
+temporary or permanent repercussions as determined by other members of the project's leadership.
 
 ## Attribution
 
 This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at [http://contributor-covenant.org/version/1/4][version]
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
 
-[homepage]: http://contributor-covenant.org
-[version]: http://contributor-covenant.org/version/1/4/
+[homepage]: https://www.contributor-covenant.org

CONTRIBUTING.md

@@ -1,22 +1,22 @@
 # Contributing
 
 Thanks for taking an interest in this open source project. Your support and involvement is greatly
-appreciated. The following sections detail what you need to know in order to contribute.
+appreciated. The following details what you need to know in order to contribute.
 
 ## Code
 
 1. Read the project README before starting.
-1. Fork the `master` branch of this repository and clone the fork locally.
-1. Ensure there are no setup, usage, and/or test issues.
+1. Fork and clone the `master` branch of this repository locally.
+1. Ensure there are no local setup, usage, and/or test issues.
 1. Add tests for new functionality and ensure they pass.
-1. Submit a pull request, follow the instructions it provides, and ensure the build passes.
+1. Submit a pull request, follow the instructions provided, and ensure the build passes.
 
 ## Issues
 
-- Submit an issue via the GitHub Issues tab (assuming one does not
-  already exist) and follow the instructions it provides.
+- Submit an issue via the GitHub Issues tab (assuming one does not already exist) and follow the
+  instructions provided.
 
 ## Feedback
 
 - Expect a response within one to three business days.
-- Changes, alternatives, and/or improvements might be suggested upon review.
+- Changes, alternatives, and/or improvements may be suggested upon review.

Gemfile

@@ -2,5 +2,5 @@
 
 source "https://rubygems.org"
 
-gem "rake", "~> 12.0"
-gem "git-cop", "~> 2.2"
+gem "rake", "~> 13.0"
+gem "git-cop", "~> 3.5"

README.md

@@ -1,3 +1,7 @@
+<p align="center">
+  <img src="mac_os.png" alt="MacOS Icon"/>
+</p>
+
 # macOS
 
 [![Circle CI Status](https://circleci.com/gh/bkuhlmann/mac_os.svg?style=svg)](https://circleci.com/gh/bkuhlmann/mac_os)
@@ -26,7 +30,10 @@ the two projects are meant to be used:
   - [Requirements](#requirements)
   - [Setup](#setup)
   - [Usage](#usage)
+    - [Boot Disk](#boot-disk)
+    - [Startup Security Utility](#startup-security-utility)
     - [Customization](#customization)
+  - [Troubleshooting](#troubleshooting)
   - [Versioning](#versioning)
   - [Code of Conduct](#code-of-conduct)
   - [Contributions](#contributions)
@@ -41,9 +48,7 @@ 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):
-    - [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 and installs [Xcode Command Line Tools](https://developer.apple.com/xcode).
 - Downloads, installs, and configures [Homebrew Formulas](http://brew.sh).
 - Downloads, installs, and configures [Homebrew Casks](https://caskroom.github.io).
 - Downloads, installs, and configures
@@ -56,11 +61,11 @@ the two projects are meant to be used:
 
 ## Screencast
 
-[![asciicast](https://asciinema.org/a/155990.png)](https://asciinema.org/a/155990)
+[![asciicast](https://asciinema.org/a/278158.svg)](https://asciinema.org/a/278158)
 
 ## Requirements
 
-1. [macOS High Sierra](https://www.apple.com/macos) (with latest software updates applied)
+1. [macOS Catalina](https://www.apple.com/macos/catalina) (with latest software updates applied)
 1. [Xcode](https://developer.apple.com/xcode) (with accepted license agreement)
 
 ## Setup
@@ -72,7 +77,7 @@ Current Version (stable):
 
     git clone https://github.com/bkuhlmann/mac_os.git
     cd mac_os
-    git checkout 5.0.0
+    git checkout 8.0.1
 
 Master Version (unstable):
 
@@ -125,6 +130,57 @@ 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.
+
+Depending on your security settings, you might need to use the Startup Security Utility before using
+the Boot Disk (see below).
+
+### [Startup Security Utility](https://support.apple.com/en-us/HT208198)
+
+With newer hardware, you should be running with the Apple T2 Security Chip (found via  → About This
+Mac → Overview → System Report → Controller). In order to boot your machine using the Boot Disk,
+you'll need to *temporarily* disable the default security settings as follows:
+
+- Turn on or restart your Mac, then press and hold `COMMAND + R` immediately after seeing the Apple
+  logo.
+- Select Utilities → Startup Security Utility from the main menu.
+- Click "Turn Off Firmware Password".
+- Select "Secure Boot: No Security".
+- Select "External Boot: Allow booting from external media".
+- Quit the utility and restart the machine.
+
+You'll now be able to boot your system with the Boot Disk (see above).
+
+After the new operating system has been installed via the Boot Disk, *ensure you return to the
+Startup Security Utility and re-enable the following settings*:
+
+- Click "Turn On Firmware Password".
+- Select "Secure Boot: Full Security".
+- Select "External Boot: Disallow booting from external or removable media".
+
 ### Customization
 
 All executable scripts can be found in the `bin` folder:
@@ -152,6 +208,23 @@ 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).
+- Sometimes, when installing XCode development tools (i.e. the `t` option), not all of the macOS
+  headers will be installed. This can cause issues with compiling and building native packages. For
+  example: `fatal error: 'stdio.h' file not found`. This can happen due to an intermittent bug with
+  the XCode installer. To fix this, you'll need to install this package:
+  `/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg`. Depending on
+  your system, the version might differ, so look for a `*.pkg` in the
+  `/Library/Developer/CommandLineTools/Packages` folder.
+
 ## 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"
@@ -24,8 +22,8 @@ printf "  5. Use the dialog options to launch Disk Utility, reinstall the system
 
 printf "\nCreating macOS boot disk...\n"
 
-if [[ ! -d "$MAC_OS_INSTALLER_PATH" ]]; then
-  printf "ERROR: macOS installer does not exist: $MAC_OS_INSTALLER_PATH. Use the App Store to download.\n"
+if [[ ! -e "$MAC_OS_BOOT_DISK_CREATOR" ]]; then
+  printf "ERROR: macOS installer does not exist: $MAC_OS_BOOT_DISK_CREATOR. Use System Preferences → Software Update to download.\n"
   exit 1
 fi
 
@@ -34,4 +32,4 @@ if [[ ! -d "$MAC_OS_BOOT_DISK_PATH" ]]; then
   exit 1
 fi
 
-sudo "$MAC_OS_BOOT_DISK_CREATOR" --volume "$MAC_OS_BOOT_DISK_PATH" --applicationpath "$MAC_OS_INSTALLER_PATH" --nointeraction
+sudo "$MAC_OS_BOOT_DISK_CREATOR" --volume "$MAC_OS_BOOT_DISK_PATH" --downloadassets --nointeraction

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

@@ -1,23 +1,13 @@
 #! /usr/bin/env bash
 
-# DESCRIPTION
 # Installs development tooling requirements.
 
 printf "Installing Xcode CLI tools...\n"
 xcode-select --install
 
+printf "%s\n" "💡 ALT+TAB to view and accept Xcode license window."
 read -p "Have you completed the Xcode CLI tools install (y/n)? " xcode_response
 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")' >> $BASH_ENV
+
       - type: cache-restore
-        name: Bundler Cache Restore
-        key: bundle-{{ checksum "Gemfile" }}
+        name: Ruby Restore
+        key: ruby-{{checksum ".ruby-version"}}
+
+      - run:
+          name: Ruby Install
+          command: |
+            curl https://cache.ruby-lang.org/pub/ruby/${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
-        key: bundle-{{ checksum "Gemfile" }}
+        name: Bundler Store
+        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" "$download_file"
-    mount_image "$MAC_OS_WORK_PATH/$download_file"
+    download_file "$url" "$work_file"
+    mount_image "$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" "$download_file"
-    mount_image "$MAC_OS_WORK_PATH/$download_file"
+    download_file "$url" "$work_file"
+    mount_image "$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 +115,22 @@ install_tar_app() {
 }
 export -f install_tar_app
 
-# Installs a package via a zip file.
-# Parameters: $1 (required) - URL, $2 (required) - Application name.
-install_zip_pkg() {
+# Installs program (single file).
+# Parameters: $1 (required) - URL, $2 (required) - Program name.
+install_program() {
   local url="$1"
-  local app_name="$2"
-  local install_path=$(get_install_path "$app_name")
-  local download_file="download.zip"
+  local program_name="$2"
+  local install_path=$(get_install_path "$program_name")
 
   if [[ ! -e "$install_path" ]]; then
-    download_installer "$url" "$download_file"
-
-    (
-      printf "Preparing...\n"
-      cd "$MAC_OS_WORK_PATH"
-      unzip -q "$download_file"
-    )
-
-    install_pkg "$MAC_OS_WORK_PATH" "$app_name"
-    printf "Installed: $app_name.\n"
-    verify_application "$app_name"
+    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_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 +171,26 @@ install_git_project() {
 }
 export -f install_git_project
 
-# Downloads an installer to local disk.
-# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (required) - HTTP header.
-download_installer() {
+# 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
+    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"
@@ -167,38 +200,7 @@ 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
-
-# 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
+export -f download_file
 
 # Installs an application.
 # Parameters: $1 (required) - Application source path, $2 (required) - Application name.
@@ -209,6 +211,8 @@ 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

@@ -1,22 +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 High Sierra.app/Contents/Resources/createinstallmedia"
+export MAC_OS_BOOT_DISK_CREATOR="/Applications/Install macOS Catalina.app/Contents/Resources/createinstallmedia"
 export MAC_OS_BOOT_DISK_PATH="/Volumes/Untitled"
-export MAC_OS_INSTALLER_PATH="/Applications/Install macOS High Sierra.app"
 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="http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.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.
@@ -20,7 +19,7 @@ export -f clean_work_path
 
 # Caffeinate machine.
 caffeinate_machine() {
-  local pid=$(ps aux | grep caffeinate | grep -v grep | awk '{print $2}')
+  local pid=$(pgrep -x caffeinate)
 
   if [[ -n "$pid" ]]; then
     printf "Whoa, tweaker, machine is already caffeinated!\n"

lib/verifiers.sh

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