New awesome minimalistic Bash prompt.
This commit is contained in:
Artem Sapegin
parent
42f12300ed
commit
b255959cb8
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@ -1,89 +1,64 @@
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# Inspired by: https://github.com/dreadatour/dotfiles/blob/master/.bash_profile
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# Inspired by: https://github.com/dreadatour/dotfiles/blob/master/.bash_profile & https://github.com/sindresorhus/pure
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# Add to ~/.bashlocal user name you don’t want to see in the prompt: `local_username="admin"`
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# User color
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case $(id -u) in
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0) USER_COLOR=$RED ;; # root
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*) USER_COLOR=$GREEN ;;
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0) user_color="$RED" ;; # root
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*) user_color="$GREEN" ;;
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esac
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# Some kind of optimization - check if Git installed only on config load
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PS1_GIT_BIN=$(which git 2>/dev/null)
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# Prompt symbol
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prompt_symbol="❯"
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function prompt_command() {
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local PS1_GIT=
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local GIT_BRANCH=
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local GIT_DIRTY=
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local PWDNAME="$PWD"
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# Local or SSH session?
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local remote=
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[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && remote=1
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# Beautify working directory name
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# Working directory name
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local dir_name="$PWD"
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if [ "$HOME" == "$PWD" ]; then
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PWDNAME="~"
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dir_name="~"
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elif [ "$HOME" == "${PWD:0:${#HOME}}" ]; then
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PWDNAME="~${PWD:${#HOME}}"
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dir_name="~${PWD:${#HOME}}"
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fi
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# Parse Git status and get Git variables
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if [[ ! -z "$PS1_GIT_BIN" ]]; then
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# Check if we are in Git repo
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local CUR_DIR="$PWD"
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while [[ ! -d "$CUR_DIR/.git" ]] && [[ ! "$CUR_DIR" == "/" ]] && [[ ! "$CUR_DIR" == "~" ]] && [[ ! "$CUR_DIR" == "" ]]; do CUR_DIR="${CUR_DIR%/*}"; done
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if [[ -d "$CUR_DIR/.git" ]]; then
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# Get Git branch
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GIT_BRANCH="$($PS1_GIT_BIN symbolic-ref HEAD 2>/dev/null)"
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if [[ ! -z "$GIT_BRANCH" ]]; then
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GIT_BRANCH="${GIT_BRANCH#refs/heads/}"
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# Git branch name and work tree status (only when we are inside Git working tree)
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local git_prompt=
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if [[ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]]; then
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# Branch name
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local branch="$(git symbolic-ref HEAD 2>/dev/null)"
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branch="${branch##refs/heads/}"
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# Get Git status
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local GIT_STATUS="$($PS1_GIT_BIN status --porcelain 2>/dev/null)"
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[[ -n "$GIT_STATUS" ]] && GIT_DIRTY=1
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fi
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fi
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# Working tree status (red when dirty)
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local branch_color="$GREEN"
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git diff --no-ext-diff --quiet --exit-code --ignore-submodules || branch_color="$RED"
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# Format Git info
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git_prompt=" #$branch_color$branch$NOCOLOR"
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fi
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# Build B&W prompt for Git
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[[ ! -z "$GIT_BRANCH" ]] && PS1_GIT=" #$GIT_BRANCH"
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# Only show username if not default
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local user_prompt=
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[ "$USER" != "$local_username" ] && user_prompt="$user_color$USER$NOCOLOR"
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# Calculate prompt length
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local host_length=0
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[ -n "$remote" ] && host_length=$((${#HOSTNAME}+1))
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local PS1_length=$((${#USER}+${#PWDNAME}+${#PS1_GIT}+$host_length+2))
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local FILL=
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# If length is greater, than terminal width
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if [[ $PS1_length -gt $COLUMNS ]]; then
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# Strip working directory name
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PWDNAME="...${PWDNAME:$(($PS1_length-$COLUMNS+3))}"
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else
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# Calculate fillsize
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local fillsize=$(($COLUMNS-$PS1_length))
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FILL=$GRAY
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while [[ $fillsize -gt 0 ]]; do FILL=$FILL"─"; fillsize=$(($fillsize-1)); done
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FILL=$FILL$NOCOLOR
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fi
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# Git status for prompt
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if [ ! -z "$GIT_BRANCH" ]; then
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local BRANCH_COLOR=$GREEN
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[ ! -z $GIT_DIRTY ] && BRANCH_COLOR=$RED
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PS1_GIT=" #$BRANCH_COLOR$GIT_BRANCH$NOCOLOR"
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fi
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# Set new color prompt
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# Show hostname inside SSH session
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local host_prompt=
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[ -n "$remote" ] && host_prompt="@$YELLOW$HOSTNAME$NOCOLOR"
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PS1="$USER_COLOR$USER$NOCOLOR$host_prompt:$WHITE$PWDNAME$NOCOLOR$PS1_GIT $FILL\n→ "
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[ -n "$remote" ] && host_prompt="@$YELLOW$HOSTNAME$NOCOLOR"
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# Show delimiter if user or host visible
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local login_delimiter=
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[ -n "$user_prompt" ] || [ -n "$host_prompt" ] && login_delimiter=":"
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# Format prompt
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PS1="\n$user_prompt$host_prompt$login_delimiter$WHITE$dir_name$NOCOLOR$git_prompt\n$CYAN$prompt_symbol$NOCOLOR "
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# Terminal title
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local TITLE=$(basename $PWDNAME)
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[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && TITLE="$TITLE \xE2\x80\x94 $HOSTNAME"
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echo -ne "\033]0;$TITLE"; echo -ne "\007"
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local title="$(basename $dir_name)"
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[ -n "$remote" ] && title="$title \xE2\x80\x94 $HOSTNAME"
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echo -ne "\033]0;$title"; echo -ne "\007"
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}
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# Set prompt command (title update and color prompt)
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PROMPT_COMMAND=prompt_command
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# Set new B&W prompt (will be overwritten in `prompt_command` later with color prompt)
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PS1='\u@\h:\w\$ '
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# Show awesome prompt only if Git is istalled
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command -v git >/dev/null 2>&1 && PROMPT_COMMAND=prompt_command
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