188 lines
6.2 KiB
Bash
Executable File
188 lines
6.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Checks the minium version of bash (v3.2) installed,
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# stops the installation if check fails
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if [ -z "${BASH_VERSION-}" ]; then
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printf "Error: Bash 3.2 required for Oh My Bash.\n"
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printf "Error: Install Bash and try running this script with Bash.\n"
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return 1 &>/dev/null || exit 1
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fi
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if [[ ! ${BASH_VERSINFO[0]-} ]] || ((BASH_VERSINFO[0] < 3 || BASH_VERSINFO[0] == 3 && BASH_VERSINFO[1] < 2)); then
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printf "Error: Bash 3.2 required for Oh My Bash.\n"
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printf "Error: Upgrade Bash and try again.\n"
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return 2 &>/dev/null || exit 2
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fi
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_omb_install_print_usage() {
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printf '%s\n' \
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'usage: ./install.sh [--unattended | --help | --dry-run]' \
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'usage: bash -c "$(< install.sh)" [--unattended | --help | --dry-run]'
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}
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_omb_install_print_help() {
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_omb_install_print_usage
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printf '%s\n' \
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'Install script for Oh-My-Bash (https://github.com/ohmybash/oh-my-bash)' \
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'' \
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'OPTIONS' \
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' --help show this help' \
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' --unattended attend the meeting' \
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''
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}
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_omb_install_readargs() {
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while (($#)); do
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local arg=$1; shift
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if [[ :$install_opts: != *:literal:* ]]; then
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case $arg in
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--help | --unattended | --dry-run)
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install_opts+=:${arg#--}
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continue ;;
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--)
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install_opts+=:literal
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continue ;;
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-*)
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install_opts+=:error
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if [[ $arg == -[!-]?* ]]; then
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL ${RED}unrecognized options '$arg'.$NORMAL"
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else
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL ${RED}unrecognized option '$arg'.$NORMAL"
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fi
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continue ;;
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esac
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fi
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install_opts+=:error
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL unrecognized argument '$arg'."
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done
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}
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_omb_install_run() {
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if [[ :$install_opts: == *:dry-run:* ]]; then
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printf '%s\n' "$BOLD$GREEN[dryrun]$NORMAL $BOLD$*$NORMAL" >&5
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else
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printf '%s\n' "$BOLD\$ $*$NORMAL" >&5
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"$@"
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fi
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}
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_omb_install_main() {
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# Use colors, but only if connected to a terminal, and that terminal
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# supports them.
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if hash tput >/dev/null 2>&1; then
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local ncolors=$(tput colors 2>/dev/null || tput Co 2>/dev/null || echo -1)
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fi
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if [[ -t 1 && -n $ncolors && $ncolors -ge 8 ]]; then
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local RED=$(tput setaf 1 2>/dev/null || tput AF 1 2>/dev/null)
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local GREEN=$(tput setaf 2 2>/dev/null || tput AF 2 2>/dev/null)
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local YELLOW=$(tput setaf 3 2>/dev/null || tput AF 3 2>/dev/null)
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local BLUE=$(tput setaf 4 2>/dev/null || tput AF 4 2>/dev/null)
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local BOLD=$(tput bold 2>/dev/null || tput md 2>/dev/null)
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local NORMAL=$(tput sgr0 2>/dev/null || tput me 2>/dev/null)
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else
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local RED=""
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local GREEN=""
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local YELLOW=""
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local BLUE=""
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local BOLD=""
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local NORMAL=""
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fi
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local install_opts=
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_omb_install_readargs "$@"
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if [[ :$install_opts: == *:help:* ]]; then
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_omb_install_print_help
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return 0
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elif [[ :$install_opts: == *:error:* ]]; then
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_omb_install_print_usage
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return 2
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fi
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# Only enable exit-on-error after the non-critical colorization stuff,
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# which may fail on systems lacking tput or terminfo
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set -e
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if [[ ! $OSH ]]; then
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OSH=~/.oh-my-bash
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fi
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if [[ -d $OSH ]]; then
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printf "${YELLOW}You already have Oh My Bash installed.${NORMAL}\n"
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printf "You'll need to remove $OSH if you want to re-install.\n"
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return 1
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fi
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# Prevent the cloned repository from having insecure permissions. Failing to do
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# so causes compinit() calls to fail with "command not found: compdef" errors
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# for users with insecure umasks (e.g., "002", allowing group writability). Note
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# that this will be ignored under Cygwin by default, as Windows ACLs take
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# precedence over umasks except for filesystems mounted with option "noacl".
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umask g-w,o-w
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printf "${BLUE}Cloning Oh My Bash...${NORMAL}\n"
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hash git >/dev/null 2>&1 || {
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echo "Error: git is not installed"
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return 1
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}
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# The Windows (MSYS) Git is not compatible with normal use on cygwin
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if [[ $OSTYPE = cygwin ]]; then
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if git --version | grep msysgit > /dev/null; then
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echo "Error: Windows/MSYS Git is not supported on Cygwin"
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echo "Error: Make sure the Cygwin git package is installed and is first on the path"
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return 1
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fi
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fi
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_omb_install_run env git clone --depth=1 https://github.com/ohmybash/oh-my-bash.git "$OSH" || {
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printf "Error: git clone of oh-my-bash repo failed\n"
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return 1
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}
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printf "${BLUE}Looking for an existing bash config...${NORMAL}\n"
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if [[ -f ~/.bashrc || -h ~/.bashrc ]]; then
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local bashrc_backup=~/.bashrc.omb-backup-$(date +%Y%m%d%H%M%S)
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printf "${YELLOW}Found ~/.bashrc.${NORMAL} ${GREEN}Backing up to $bashrc_backup${NORMAL}\n"
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_omb_install_run mv ~/.bashrc "$bashrc_backup"
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fi
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printf "${BLUE}Using the Oh My Bash template file and adding it to ~/.bashrc${NORMAL}\n"
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_omb_install_run cp "$OSH"/templates/bashrc.osh-template ~/.bashrc
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sed "/^export OSH=/ c\\
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export OSH=$OSH
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" ~/.bashrc >| ~/.bashrc.omb-temp
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_omb_install_run mv -f ~/.bashrc.omb-temp ~/.bashrc
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set +e
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# MOTD message :)
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printf '%s' "$GREEN"
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printf '%s\n' \
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' __ __ __ ' \
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' ____ / /_ ____ ___ __ __ / /_ ____ ______/ /_ ' \
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' / __ \/ __ \ / __ `__ \/ / / / / __ \/ __ `/ ___/ __ \' \
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'/ /_/ / / / / / / / / / / /_/ / / /_/ / /_/ (__ ) / / /' \
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'\____/_/ /_/ /_/ /_/ /_/\__, / /_.___/\__,_/____/_/ /_/ ' \
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' /____/ .... is now installed!' \
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"Please look over the ~/.bashrc file to select plugins, themes, and options"
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printf "${BLUE}${BOLD}%s${NORMAL}\n" "To keep up on the latest news and updates, follow us on GitHub: https://github.com/ohmybash/oh-my-bash"
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if [[ :$install_opts: == *:dry-run:* ]]; then
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printf '%s\n' "$GREEN$BOLD[dryrun]$NORMAL Sample bashrc is created at '$BOLD$HOME/.bashrc-ombtemp$NORMAL'."
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elif [[ :$install_opts: != *:unattended:* ]]; then
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if [[ $- == *i* ]]; then
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# In case install.sh is sourced from the interactive Bash
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source ~/.bashrc
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else
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exec bash
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fi
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fi
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}
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[[ ${BASH_EXECUTION_STRING-} && $0 == -* ]] &&
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set -- "$0" "$@"
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_omb_install_main "$@" 5>&2
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