mirror of
https://github.com/ohmyzsh/ohmyzsh.git
synced 2024-11-15 01:48:34 -07:00
a0a949de56
The previous check only worked if the user could run `sudo` without typing the password, which is almost none (I checked in Google Cloud Shell so I failed to notice this). This new check works whether the user has no sudo privileges, or if it has, whether they have to type in the password or not. It should really be easier to check if the user doesn't have privilege without having to make them type the password.
492 lines
15 KiB
Bash
Executable File
492 lines
15 KiB
Bash
Executable File
#!/bin/sh
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#
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# This script should be run via curl:
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# sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
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# or via wget:
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# sh -c "$(wget -qO- https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
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# or via fetch:
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# sh -c "$(fetch -o - https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
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#
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# As an alternative, you can first download the install script and run it afterwards:
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# wget https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh
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# sh install.sh
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#
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# You can tweak the install behavior by setting variables when running the script. For
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# example, to change the path to the Oh My Zsh repository:
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# ZSH=~/.zsh sh install.sh
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#
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# Respects the following environment variables:
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# ZSH - path to the Oh My Zsh repository folder (default: $HOME/.oh-my-zsh)
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# REPO - name of the GitHub repo to install from (default: ohmyzsh/ohmyzsh)
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# REMOTE - full remote URL of the git repo to install (default: GitHub via HTTPS)
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# BRANCH - branch to check out immediately after install (default: master)
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#
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# Other options:
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# CHSH - 'no' means the installer will not change the default shell (default: yes)
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# RUNZSH - 'no' means the installer will not run zsh after the install (default: yes)
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# KEEP_ZSHRC - 'yes' means the installer will not replace an existing .zshrc (default: no)
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#
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# You can also pass some arguments to the install script to set some these options:
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# --skip-chsh: has the same behavior as setting CHSH to 'no'
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# --unattended: sets both CHSH and RUNZSH to 'no'
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# --keep-zshrc: sets KEEP_ZSHRC to 'yes'
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# For example:
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# sh install.sh --unattended
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# or:
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# sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
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#
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set -e
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# Track if $ZSH was provided
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custom_zsh=${ZSH:+yes}
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# Default settings
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ZSH=${ZSH:-~/.oh-my-zsh}
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REPO=${REPO:-ohmyzsh/ohmyzsh}
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REMOTE=${REMOTE:-https://github.com/${REPO}.git}
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BRANCH=${BRANCH:-master}
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# Other options
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CHSH=${CHSH:-yes}
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RUNZSH=${RUNZSH:-yes}
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KEEP_ZSHRC=${KEEP_ZSHRC:-no}
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command_exists() {
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command -v "$@" >/dev/null 2>&1
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}
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user_can_sudo() {
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# The following command has 3 parts:
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#
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# 1. Run `sudo` with `-v`. Does the following:
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# • with privilege: asks for a password immediately.
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# • without privilege: exits with error code 1 and prints the message:
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# Sorry, user <username> may not run sudo on <hostname>
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#
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# 2. Pass `-S` to `sudo` to tell it to get the password from stdin
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# instead of from a tty, and pipe `true` to `sudo`, since it doesn't
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# output anything. This will make sudo exit with error code 1 and print
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# the message:
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# sudo: no password was provided
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#
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# 3. Check for the words "may not run sudo" in the output to really tell
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# whether the user has privileges or not. For that we have to make sure
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# to run `sudo` in the default locale (with `LANG=`) so that the message
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# stays consistent regardless of the user's locale.
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#
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true | LANG= sudo -v -S 2>&1 | grep -q "may not run sudo"
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}
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# The [ -t 1 ] check only works when the function is not called from
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# a subshell (like in `$(...)` or `(...)`, so this hack redefines the
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# function at the top level to always return false when stdout is not
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# a tty.
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if [ -t 1 ]; then
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is_tty() {
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true
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}
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else
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is_tty() {
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false
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}
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fi
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# This function uses the logic from supports-hyperlinks[1][2], which is
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# made by Kat Marchán (@zkat) and licensed under the Apache License 2.0.
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# [1] https://github.com/zkat/supports-hyperlinks
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# [2] https://crates.io/crates/supports-hyperlinks
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#
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# Copyright (c) 2021 Kat Marchán
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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supports_hyperlinks() {
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# $FORCE_HYPERLINK must be set and be non-zero (this acts as a logic bypass)
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if [ -n "$FORCE_HYPERLINK" ]; then
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[ "$FORCE_HYPERLINK" != 0 ]
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return $?
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fi
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# If stdout is not a tty, it doesn't support hyperlinks
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is_tty || return 1
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# DomTerm terminal emulator (domterm.org)
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if [ -n "$DOMTERM" ]; then
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return 0
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fi
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# VTE-based terminals above v0.50 (Gnome Terminal, Guake, ROXTerm, etc)
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if [ -n "$VTE_VERSION" ]; then
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[ $VTE_VERSION -ge 5000 ]
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return $?
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fi
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# If $TERM_PROGRAM is set, these terminals support hyperlinks
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case "$TERM_PROGRAM" in
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Hyper|iTerm.app|terminology|WezTerm) return 0 ;;
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esac
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# kitty supports hyperlinks
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if [ "$TERM" = xterm-kitty ]; then
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return 0
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fi
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# Windows Terminal or Konsole also support hyperlinks
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if [ -n "$WT_SESSION" ] || [ -n "$KONSOLE_VERSION" ]; then
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return 0
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fi
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return 1
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}
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# Adapted from code and information by Anton Kochkov (@XVilka)
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# Source: https://gist.github.com/XVilka/8346728
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supports_truecolor() {
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case "$COLORTERM" in
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truecolor|24bit) return 0 ;;
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esac
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case "$TERM" in
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iterm |\
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tmux-truecolor |\
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linux-truecolor |\
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xterm-truecolor |\
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screen-truecolor) return 0 ;;
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esac
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return 1
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}
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fmt_link() {
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# $1: text, $2: url, $3: fallback mode
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if supports_hyperlinks; then
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printf '\033]8;;%s\a%s\033]8;;\a\n' "$2" "$1"
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return
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fi
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case "$3" in
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--text) printf '%s\n' "$1" ;;
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--url|*) fmt_underline "$2" ;;
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esac
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}
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fmt_underline() {
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is_tty && printf '\033[4m%s\033[24m\n' "$*" || printf '%s\n' "$*"
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}
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# shellcheck disable=SC2016 # backtick in single-quote
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fmt_code() {
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is_tty && printf '`\033[2m%s\033[22m`\n' "$*" || printf '`%s`\n' "$*"
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}
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fmt_error() {
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printf '%sError: %s%s\n' "$BOLD$RED" "$*" "$RESET" >&2
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}
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setup_color() {
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# Only use colors if connected to a terminal
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if ! is_tty; then
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RAINBOW=""
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RED=""
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GREEN=""
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YELLOW=""
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BLUE=""
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BOLD=""
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RESET=""
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return
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fi
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if supports_truecolor; then
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RAINBOW="
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$(printf '\033[38;2;255;0;0m')
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$(printf '\033[38;2;255;97;0m')
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$(printf '\033[38;2;247;255;0m')
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$(printf '\033[38;2;0;255;30m')
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$(printf '\033[38;2;77;0;255m')
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$(printf '\033[38;2;168;0;255m')
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$(printf '\033[38;2;245;0;172m')
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"
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else
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RAINBOW="
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$(printf '\033[38;5;196m')
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$(printf '\033[38;5;202m')
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$(printf '\033[38;5;226m')
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$(printf '\033[38;5;082m')
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$(printf '\033[38;5;021m')
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$(printf '\033[38;5;093m')
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$(printf '\033[38;5;163m')
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"
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fi
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RED=$(printf '\033[31m')
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GREEN=$(printf '\033[32m')
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YELLOW=$(printf '\033[33m')
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BLUE=$(printf '\033[34m')
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BOLD=$(printf '\033[1m')
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RESET=$(printf '\033[0m')
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}
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setup_ohmyzsh() {
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# Prevent the cloned repository from having insecure permissions. Failing to do
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# so causes compinit() calls to fail with "command not found: compdef" errors
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# for users with insecure umasks (e.g., "002", allowing group writability). Note
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# that this will be ignored under Cygwin by default, as Windows ACLs take
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# precedence over umasks except for filesystems mounted with option "noacl".
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umask g-w,o-w
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echo "${BLUE}Cloning Oh My Zsh...${RESET}"
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command_exists git || {
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fmt_error "git is not installed"
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exit 1
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}
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ostype=$(uname)
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if [ -z "${ostype%CYGWIN*}" ] && git --version | grep -q msysgit; then
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fmt_error "Windows/MSYS Git is not supported on Cygwin"
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fmt_error "Make sure the Cygwin git package is installed and is first on the \$PATH"
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exit 1
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fi
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git clone -c core.eol=lf -c core.autocrlf=false \
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-c fsck.zeroPaddedFilemode=ignore \
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-c fetch.fsck.zeroPaddedFilemode=ignore \
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-c receive.fsck.zeroPaddedFilemode=ignore \
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-c oh-my-zsh.remote=origin \
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-c oh-my-zsh.branch="$BRANCH" \
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--depth=1 --branch "$BRANCH" "$REMOTE" "$ZSH" || {
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fmt_error "git clone of oh-my-zsh repo failed"
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exit 1
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}
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echo
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}
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setup_zshrc() {
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# Keep most recent old .zshrc at .zshrc.pre-oh-my-zsh, and older ones
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# with datestamp of installation that moved them aside, so we never actually
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# destroy a user's original zshrc
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echo "${BLUE}Looking for an existing zsh config...${RESET}"
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# Must use this exact name so uninstall.sh can find it
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OLD_ZSHRC=~/.zshrc.pre-oh-my-zsh
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if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]; then
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# Skip this if the user doesn't want to replace an existing .zshrc
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if [ "$KEEP_ZSHRC" = yes ]; then
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echo "${YELLOW}Found ~/.zshrc.${RESET} ${GREEN}Keeping...${RESET}"
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return
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fi
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if [ -e "$OLD_ZSHRC" ]; then
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OLD_OLD_ZSHRC="${OLD_ZSHRC}-$(date +%Y-%m-%d_%H-%M-%S)"
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if [ -e "$OLD_OLD_ZSHRC" ]; then
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fmt_error "$OLD_OLD_ZSHRC exists. Can't back up ${OLD_ZSHRC}"
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fmt_error "re-run the installer again in a couple of seconds"
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exit 1
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fi
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mv "$OLD_ZSHRC" "${OLD_OLD_ZSHRC}"
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echo "${YELLOW}Found old ~/.zshrc.pre-oh-my-zsh." \
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"${GREEN}Backing up to ${OLD_OLD_ZSHRC}${RESET}"
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fi
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echo "${YELLOW}Found ~/.zshrc.${RESET} ${GREEN}Backing up to ${OLD_ZSHRC}${RESET}"
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mv ~/.zshrc "$OLD_ZSHRC"
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fi
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echo "${GREEN}Using the Oh My Zsh template file and adding it to ~/.zshrc.${RESET}"
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# Replace $HOME path with '$HOME' in $ZSH variable in .zshrc file
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omz=$(echo "$ZSH" | sed "s|^$HOME/|\$HOME/|")
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sed "s|^export ZSH=.*$|export ZSH=\"${omz}\"|" "$ZSH/templates/zshrc.zsh-template" > ~/.zshrc-omztemp
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mv -f ~/.zshrc-omztemp ~/.zshrc
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echo
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}
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setup_shell() {
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# Skip setup if the user wants or stdin is closed (not running interactively).
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if [ "$CHSH" = no ]; then
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return
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fi
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# If this user's login shell is already "zsh", do not attempt to switch.
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if [ "$(basename -- "$SHELL")" = "zsh" ]; then
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return
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fi
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# If this platform doesn't provide a "chsh" command, bail out.
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if ! command_exists chsh; then
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cat <<EOF
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I can't change your shell automatically because this system does not have chsh.
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${BLUE}Please manually change your default shell to zsh${RESET}
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EOF
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return
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fi
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echo "${BLUE}Time to change your default shell to zsh:${RESET}"
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# Prompt for user choice on changing the default login shell
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printf '%sDo you want to change your default shell to zsh? [Y/n]%s ' \
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"$YELLOW" "$RESET"
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read -r opt
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case $opt in
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y*|Y*|"") ;;
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n*|N*) echo "Shell change skipped."; return ;;
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*) echo "Invalid choice. Shell change skipped."; return ;;
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esac
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# Check if we're running on Termux
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case "$PREFIX" in
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*com.termux*) termux=true; zsh=zsh ;;
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*) termux=false ;;
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esac
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if [ "$termux" != true ]; then
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# Test for the right location of the "shells" file
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if [ -f /etc/shells ]; then
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shells_file=/etc/shells
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elif [ -f /usr/share/defaults/etc/shells ]; then # Solus OS
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shells_file=/usr/share/defaults/etc/shells
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else
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fmt_error "could not find /etc/shells file. Change your default shell manually."
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return
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fi
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# Get the path to the right zsh binary
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# 1. Use the most preceding one based on $PATH, then check that it's in the shells file
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# 2. If that fails, get a zsh path from the shells file, then check it actually exists
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if ! zsh=$(command -v zsh) || ! grep -qx "$zsh" "$shells_file"; then
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if ! zsh=$(grep '^/.*/zsh$' "$shells_file" | tail -n 1) || [ ! -f "$zsh" ]; then
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fmt_error "no zsh binary found or not present in '$shells_file'"
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fmt_error "change your default shell manually."
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return
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fi
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fi
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fi
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# We're going to change the default shell, so back up the current one
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if [ -n "$SHELL" ]; then
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echo "$SHELL" > ~/.shell.pre-oh-my-zsh
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else
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grep "^$USER:" /etc/passwd | awk -F: '{print $7}' > ~/.shell.pre-oh-my-zsh
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fi
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echo "Changing your shell to $zsh..."
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# Check if user has sudo privileges to run `chsh` with or without `sudo`
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#
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# This allows the call to succeed without password on systems where the
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# user does not have a password but does have sudo privileges, like in
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# Google Cloud Shell.
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#
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# On systems that don't have a user with passwordless sudo, the user will
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# be prompted for the password either way, so this shouldn't cause any issues.
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#
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if user_can_sudo; then
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chsh -s "$zsh" "$USER" # run chsh normally
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else
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sudo -k chsh -s "$zsh" "$USER" # -k forces the password prompt
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fi
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# Check if the shell change was successful
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if [ $? -ne 0 ]; then
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fmt_error "chsh command unsuccessful. Change your default shell manually."
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else
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export SHELL="$zsh"
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echo "${GREEN}Shell successfully changed to '$zsh'.${RESET}"
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fi
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echo
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}
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# shellcheck disable=SC2183 # printf string has more %s than arguments ($RAINBOW expands to multiple arguments)
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print_success() {
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printf '%s %s__ %s %s %s %s %s__ %s\n' $RAINBOW $RESET
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printf '%s ____ %s/ /_ %s ____ ___ %s__ __ %s ____ %s_____%s/ /_ %s\n' $RAINBOW $RESET
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printf '%s / __ \\%s/ __ \\ %s / __ `__ \\%s/ / / / %s /_ / %s/ ___/%s __ \\ %s\n' $RAINBOW $RESET
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printf '%s/ /_/ /%s / / / %s / / / / / /%s /_/ / %s / /_%s(__ )%s / / / %s\n' $RAINBOW $RESET
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printf '%s\\____/%s_/ /_/ %s /_/ /_/ /_/%s\\__, / %s /___/%s____/%s_/ /_/ %s\n' $RAINBOW $RESET
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printf '%s %s %s %s /____/ %s %s %s %s....is now installed!%s\n' $RAINBOW $GREEN $RESET
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printf '\n'
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printf '\n'
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printf "%s %s %s\n" "Before you scream ${BOLD}${YELLOW}Oh My Zsh!${RESET} look over the" \
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"$(fmt_code "$(fmt_link ".zshrc" "file://$HOME/.zshrc" --text)")" \
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"file to select plugins, themes, and options."
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printf '\n'
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printf '%s\n' "• Follow us on Twitter: $(fmt_link @ohmyzsh https://twitter.com/ohmyzsh)"
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printf '%s\n' "• Join our Discord community: $(fmt_link "Discord server" https://discord.gg/ohmyzsh)"
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printf '%s\n' "• Get stickers, t-shirts, coffee mugs and more: $(fmt_link "Planet Argon Shop" https://shop.planetargon.com/collections/oh-my-zsh)"
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printf '%s\n' $RESET
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}
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main() {
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# Run as unattended if stdin is not a tty
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if [ ! -t 0 ]; then
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RUNZSH=no
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CHSH=no
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fi
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# Parse arguments
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while [ $# -gt 0 ]; do
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case $1 in
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--unattended) RUNZSH=no; CHSH=no ;;
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--skip-chsh) CHSH=no ;;
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--keep-zshrc) KEEP_ZSHRC=yes ;;
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esac
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shift
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done
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setup_color
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if ! command_exists zsh; then
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echo "${YELLOW}Zsh is not installed.${RESET} Please install zsh first."
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exit 1
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fi
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if [ -d "$ZSH" ]; then
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echo "${YELLOW}The \$ZSH folder already exists ($ZSH).${RESET}"
|
|
if [ "$custom_zsh" = yes ]; then
|
|
cat <<EOF
|
|
|
|
You ran the installer with the \$ZSH setting or the \$ZSH variable is
|
|
exported. You have 3 options:
|
|
|
|
1. Unset the ZSH variable when calling the installer:
|
|
$(fmt_code "ZSH= sh install.sh")
|
|
2. Install Oh My Zsh to a directory that doesn't exist yet:
|
|
$(fmt_code "ZSH=path/to/new/ohmyzsh/folder sh install.sh")
|
|
3. (Caution) If the folder doesn't contain important information,
|
|
you can just remove it with $(fmt_code "rm -r $ZSH")
|
|
|
|
EOF
|
|
else
|
|
echo "You'll need to remove it if you want to reinstall."
|
|
fi
|
|
exit 1
|
|
fi
|
|
|
|
setup_ohmyzsh
|
|
setup_zshrc
|
|
setup_shell
|
|
|
|
print_success
|
|
|
|
if [ $RUNZSH = no ]; then
|
|
echo "${YELLOW}Run zsh to try it out.${RESET}"
|
|
exit
|
|
fi
|
|
|
|
exec zsh -l
|
|
}
|
|
|
|
main "$@"
|