install.fairie/scripts/partials/homebrew
2023-11-27 22:53:29 +00:00

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# @description This function ensures Homebrew is installed and available in the `PATH`. It handles the installation of Homebrew on both **Linux and macOS**.
# It will attempt to bypass sudo password entry if it detects that it can do so. The function also has some error handling in regards to various
# directories falling out of the correct ownership and permission states. Finally, it loads Homebrew into the active profile (allowing other parts of the script
# to use the `brew` command).
#
# With Homebrew installed and available, the script finishes by installing the `gcc` Homebrew package which is a very common dependency.
ensureHomebrew() {
if ! command -v brew > /dev/null; then
if [ -d /home/linuxbrew/.linuxbrew/bin ]; then
logg info "Sourcing from /home/linuxbrew/.linuxbrew/bin/brew" && eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
if ! command -v brew > /dev/null; then
logg error "The /home/linuxbrew/.linuxbrew directory exists but something is not right. Try removing it and running the script again." && exit 1
fi
elif [ -d "$HOME/.linuxbrew" ]; then
logg info "Sourcing from $HOME/.linuxbrew/bin/brew" && eval "$($HOME/.linuxbrew/bin/brew shellenv)"
if ! command -v brew > /dev/null; then
logg error "The $HOME/.linuxbrew directory exists but something is not right. Try removing it and running the script again." && exit 1
fi
else
### Installs Homebrew and addresses a couple potential issues
if command -v sudo > /dev/null && sudo -n true; then
logg info "Installing Homebrew"
echo | /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
else
logg info "Homebrew is not installed. The script will attempt to install Homebrew and you might be prompted for your password."
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" || BREW_EXIT_CODE="$?"
if [ -n "$BREW_EXIT_CODE" ]; then
if command -v brew > /dev/null; then
logg warn "Homebrew was installed but part of the installation failed. Trying a few things to fix the installation.."
BREW_DIRS="share/man share/doc share/zsh/site-functions etc/bash_completion.d"
for BREW_DIR in $BREW_DIRS; do
if [ -d "$(brew --prefix)/$BREW_DIR" ]; then
logg info "Chowning $(brew --prefix)/$BREW_DIR" && sudo chown -R "$(whoami)" "$(brew --prefix)/$BREW_DIR"
fi
done
logg info "Running brew update --force --quiet" && brew update --force --quiet && logg success "Successfully ran brew update --force --quiet"
fi
fi
fi
### Ensures the `brew` binary is available on Linux machines. macOS installs `brew` into the default `PATH` so nothing needs to be done for macOS.
if [ -d /home/linuxbrew/.linuxbrew/bin ]; then
logg info "Sourcing shellenv from /home/linuxbrew/.linuxbrew/bin/brew" && eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
elif [ -f /opt/homebrew/bin/brew ]; then
logg info "Sourcing shellenv from /opt/homebrew/bin/brew" && eval "$(/opt/homebrew/bin/brew shellenv)"
fi
fi
fi
### Ensure GCC is installed via Homebrew
if command -v brew > /dev/null; then
if ! brew list | grep gcc > /dev/null; then
logg info "Installing Homebrew gcc" && brew install gcc
fi
else
logg error "Failed to initialize Homebrew" && exit 2
fi
}