mirror of
https://github.com/ohmybash/oh-my-bash.git
synced 2024-05-11 05:55:37 +00:00
322 lines
11 KiB
Bash
Executable File
322 lines
11 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 "${BASH_VERSION-}" ]; then
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printf "Error: Bash 3.2 or higher is required for Oh My Bash.\n"
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printf "Error: Install Bash and try running this installation script with Bash.\n"
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if command -v bash >/dev/null 2>&1; then
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# shellcheck disable=SC2016
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printf 'Example: \033[31;1mbash\033[0;34m -c "$(curl -fsSL https://raw.githubusercontent.com/ohmybash/oh-my-bash/master/tools/install.sh)"\n'
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fi
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# shellcheck disable=SC2317
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return 1 >/dev/null 2>&1 || exit 1
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fi
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if [[ ! ${BASH_VERSINFO[0]-} ]] || ((BASH_VERSINFO[0] < 3 || BASH_VERSINFO[0] == 3 && BASH_VERSINFO[1] < 2)); then
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printf "Error: Bash 3.2 required for Oh My Bash.\n" >&2
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printf "Error: Upgrade Bash and try again.\n" >&2
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# shellcheck disable=SC2317
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return 2 &>/dev/null || exit 2
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elif ((BASH_VERSINFO[0] < 4)); then
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printf "Warning: Bash >=4 is no longer required for Oh My Bash but is cool to have ;)\n" >&2
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printf "Warning: Why don't you upgrade your Bash to 4 or higher?\n" >&2
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fi
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function _omb_install_print_version {
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local OMB_VERSINFO
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OMB_VERSINFO=(1 0 0 0 master noarch)
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printf '%s\n' 'Install script for Oh-My-Bash (https://github.com/ohmybash/oh-my-bash)'
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printf 'oh-my-bash, version %s.%s.%s(%s)-%s (%s)\n' "${OMB_VERSINFO[@]}"
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}
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function _omb_install_print_usage {
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# shellcheck disable=SC2016
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printf '%s\n' \
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'usage: ./install.sh [--unattended | --dry-run | --help | --usage | --version]' \
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'usage: bash -c "$(< install.sh)" [--unattended | --dry-run | --help | --usage |' \
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' --version]'
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}
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function _omb_install_print_help {
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_omb_install_print_version
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_omb_install_print_usage
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printf '%s\n' \
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'' \
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'OPTIONS' \
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' --help show this help' \
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' --version show version' \
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' --usage show usage' \
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' --dry-run do not perform the actual installation' \
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' --unattended do not fall in to the new Bash session after the install' \
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' --prefix=PATH install oh-my-bash into "PATH/share/oh-my-bash"' \
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''
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}
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## @fn _omb_install_readargs [options...]
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## @var[out] install_opts
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## @var[out] install_prefix
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function _omb_install_readargs {
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install_opts=
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install_prefix=
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while (($#)); do
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local arg=$1; shift
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if [[ :$install_opts: != *:literal:* ]]; then
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case $arg in
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--prefix=*)
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arg=${arg#*=}
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if [[ $arg ]]; then
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install_prefix=$arg
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else
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install_opts+=:error
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL ${RED}the option argument for '--prefix' is empty.$NORMAL" >&2
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fi
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continue ;;
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--prefix)
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if (($#)); then
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install_prefix=$1; shift
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else
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install_opts+=:error
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL ${RED}an option argument for '$arg' is missing.$NORMAL" >&2
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fi
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continue ;;
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--help | --usage | --unattended | --dry-run)
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install_opts+=:${arg#--}
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continue ;;
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--version | -v)
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install_opts+=:version
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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'.$NORMAL" >&2
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else
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL ${RED}unrecognized option '$arg'.$NORMAL" >&2
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fi
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continue ;;
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esac
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fi
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install_opts+=:error
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printf 'install (oh-my-bash): %s\n' "$RED$BOLD[Error]$NORMAL unrecognized argument '$arg'." >&2
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done
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}
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function _omb_install_run {
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if [[ :$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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command "$@"
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fi
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}
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function _omb_install_banner {
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# MOTD message :)
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printf '%s' "$GREEN"
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# shellcheck disable=SC1003,SC2016
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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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printf '%s' "$NORMAL"
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}
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function _omb_install_has_proper_bash_profile {
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if [[ -s ~/.bash_profile ]]; then
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if command grep -qE '(source|\.)[[:space:]].*/\.bashrc' ~/.bash_profile 2>/dev/null; then
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return 0
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fi
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fi
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if [[ -s ~/.profile ]]; then
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if command grep -qE '(source|\.)[[:space:]].*/\.bashrc' ~/.profile 2>/dev/null; then
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return 0
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fi
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fi
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return 1
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}
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## @fn _omb_install_user_bashrc
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## @var[in] install_opts
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## @var[in] OSH
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function _omb_install_user_bashrc {
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printf '%s\n' "${BLUE}Looking for an existing bash config...${NORMAL}"
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if [[ -f ~/.bashrc || -h ~/.bashrc ]]; then
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# shellcheck disable=SC2155
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local bashrc_backup=~/.bashrc.omb-backup-$(date +%Y%m%d%H%M%S)
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printf '%s\n' "${YELLOW}Found ~/.bashrc.${NORMAL} ${GREEN}Backing up to $bashrc_backup${NORMAL}"
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_omb_install_run mv ~/.bashrc "$bashrc_backup"
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fi
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printf '%s\n' "${BLUE}Copying the Oh-My-Bash template file to ~/.bashrc${NORMAL}"
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sed "/^export OSH=/ c\\
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export OSH='${OSH//\'/\'\\\'\'}'
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" "$OSH"/templates/bashrc.osh-template >| ~/.bashrc.omb-temp &&
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_omb_install_run mv -f ~/.bashrc.omb-temp ~/.bashrc
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# If "source ~/.bashrc" is not found in ~/.bash_profile or ~/.profile, we try
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# to create a new ~/.bash_profile with the default content or show messages
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# for user to add "source ~/.bashrc" in the existing ~/.bash_profile.
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if ! _omb_install_has_proper_bash_profile; then
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if [[ ! -e ~/.bash_profile ]]; then
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if [[ -h ~/.bash_profile ]]; then
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_omb_install_run rm -f ~/.bash_profile
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fi
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_omb_install_run cp -f "$OSH"/templates/bash_profile.osh-template ~/.bash_profile
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else
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printf '%s\n' "${GREEN}Please make sure that ~/.bash_profile contains \"source ~/.bashrc\"${NORMAL}"
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fi
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fi
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set +e
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_omb_install_banner
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printf '%s\n' "${GREEN}Please look over the ~/.bashrc file to select a theme, plugins, completions, aliases, and options${NORMAL}"
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printf '%s\n' "${BLUE}${BOLD}To keep up on the latest news and updates, follow us on GitHub: https://github.com/ohmybash/oh-my-bash${NORMAL}"
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if [[ :$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 [[ $- == *i* ]]; then
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# In case install.sh is sourced from the interactive Bash
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# shellcheck disable=SC1090
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source ~/.bashrc
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else
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exec bash
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fi
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fi
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}
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function _omb_install_system_bashrc {
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printf '%s\n' "${BLUE}Creating a bashrc template at '$OSH/bashrc'...${NORMAL}"
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local q=\' Q="'\''"
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local osh="'${OSH//$q/$Q}'"
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osh=${osh//$'\n'/$'\\\n'}
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local sed_script='/^export OSH=.*/c \
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'"export OSH=$osh"
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_omb_install_run sed "$sed_script" "$OSH"/templates/bashrc.osh-template >| "$OSH"/bashrc
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_omb_install_banner
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printf '%s\n' "${GREEN}To enable Oh My Bash, please copy '${BOLD}$OSH/bashrc${NORMAL}${GREEN}' to '${BOLD}~/.bashrc${NORMAL}${GREEN}'.${NORMAL}"
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printf '%s\n' "${GREEN}Please look over the ~/.bashrc file to select a theme, plugins, completions, aliases, and options${NORMAL}"
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printf '%s\n' "${BLUE}${BOLD}To keep up on the latest news and updates, follow us on GitHub: https://github.com/ohmybash/oh-my-bash${NORMAL}"
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}
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function _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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local ncolors=
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if type -P tput &>/dev/null; then
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ncolors=$(tput colors 2>/dev/null || tput Co 2>/dev/null || echo -1)
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fi
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local RED GREEN YELLOW BLUE BOLD NORMAL
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if [[ -t 1 && $ncolors && $ncolors -ge 8 ]]; then
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RED=$(tput setaf 1 2>/dev/null || tput AF 1 2>/dev/null)
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GREEN=$(tput setaf 2 2>/dev/null || tput AF 2 2>/dev/null)
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YELLOW=$(tput setaf 3 2>/dev/null || tput AF 3 2>/dev/null)
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BLUE=$(tput setaf 4 2>/dev/null || tput AF 4 2>/dev/null)
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BOLD=$(tput bold 2>/dev/null || tput md 2>/dev/null)
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NORMAL=$(tput sgr0 2>/dev/null || tput me 2>/dev/null)
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else
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RED=""
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GREEN=""
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YELLOW=""
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BLUE=""
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BOLD=""
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NORMAL=""
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fi
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local install_opts install_prefix
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_omb_install_readargs "$@"
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if [[ :$install_opts: == *:error:* ]]; then
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printf '\n'
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install_opts+=:usage
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fi
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if [[ :$install_opts: == *:help:* ]]; then
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_omb_install_print_help
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install_opts+=:exit
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else
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if [[ :$install_opts: == *:version:* ]]; then
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_omb_install_print_version
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install_opts+=:exit
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fi
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if [[ :$install_opts: == *:usage:* ]]; then
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_omb_install_print_usage
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install_opts+=:exit
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fi
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fi
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if [[ :$install_opts: == *:error:* ]]; then
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return 2
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elif [[ :$install_opts: == *:exit:* ]]; then
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return 0
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fi
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if [[ $install_prefix ]]; then
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[[ $install_prefix == /* ]] ||
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install_prefix=$PWD/$install_prefix
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local OSH=$install_prefix/share/oh-my-bash
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elif [[ ! $OSH ]]; then
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OSH=~/.oh-my-bash
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fi
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if [[ ! $OSH_REPOSITORY ]]; then
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OSH_REPOSITORY=https://github.com/ohmybash/oh-my-bash.git
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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 [[ -d $OSH ]]; then
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printf '%s\n' "${YELLOW}You already have Oh My Bash installed.${NORMAL}" >&2
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printf '%s\n' "You'll need to remove '$OSH' if you want to re-install it." >&2
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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 '%s\n' "${BLUE}Cloning Oh My Bash...${NORMAL}"
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type -P git &>/dev/null || {
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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 [[ $OSTYPE == cygwin ]]; then
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if command git --version | command grep msysgit > /dev/null; then
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echo "Error: Windows/MSYS Git is not supported on Cygwin"
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echo "Error: Make sure the Cygwin git package is installed and is first on the path"
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return 1
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fi
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fi
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_omb_install_run git clone --depth=1 "$OSH_REPOSITORY" "$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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if [[ $install_prefix ]]; then
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_omb_install_system_bashrc
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else
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_omb_install_user_bashrc
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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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