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New awesome minimalistic Bash prompt.

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This commit is contained in:
Artem Sapegin 2013-02-20 18:06:09 +04:00
parent 42f12300ed
commit b255959cb8
1 changed files with 40 additions and 65 deletions
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103
includes/bash_prompt.bash
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@ -1,89 +1,64 @@
# Inspired by: https://github.com/dreadatour/dotfiles/blob/master/.bash_profile # Inspired by: https://github.com/dreadatour/dotfiles/blob/master/.bash_profile & https://github.com/sindresorhus/pure
# Add to ~/.bashlocal user name you don’t want to see in the prompt: `local_username="admin"`
# User color # User color
case $(id -u) in case $(id -u) in
0) USER_COLOR=$RED ;; # root 0) user_color="$RED" ;; # root
*) USER_COLOR=$GREEN ;; *) user_color="$GREEN" ;;
esac esac
# Some kind of optimization - check if Git installed only on config load # Prompt symbol
PS1_GIT_BIN=$(which git 2>/dev/null) prompt_symbol="❯"
function prompt_command() { function prompt_command() {
local PS1_GIT=
local GIT_BRANCH=
local GIT_DIRTY=
local PWDNAME="$PWD"
# Local or SSH session? # Local or SSH session?
local remote= local remote=
[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && remote=1 [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && remote=1
# Beautify working directory name # Working directory name
local dir_name="$PWD"
if [ "$HOME" == "$PWD" ]; then if [ "$HOME" == "$PWD" ]; then
PWDNAME="~" dir_name="~"
elif [ "$HOME" == "${PWD:0:${#HOME}}" ]; then elif [ "$HOME" == "${PWD:0:${#HOME}}" ]; then
PWDNAME="~${PWD:${#HOME}}" dir_name="~${PWD:${#HOME}}"
fi fi
# Parse Git status and get Git variables # Git branch name and work tree status (only when we are inside Git working tree)
if [[ ! -z "$PS1_GIT_BIN" ]]; then local git_prompt=
# Check if we are in Git repo if [[ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]]; then
local CUR_DIR="$PWD" # Branch name
while [[ ! -d "$CUR_DIR/.git" ]] && [[ ! "$CUR_DIR" == "/" ]] && [[ ! "$CUR_DIR" == "~" ]] && [[ ! "$CUR_DIR" == "" ]]; do CUR_DIR="${CUR_DIR%/*}"; done local branch="$(git symbolic-ref HEAD 2>/dev/null)"
if [[ -d "$CUR_DIR/.git" ]]; then branch="${branch##refs/heads/}"
# Get Git branch
GIT_BRANCH="$($PS1_GIT_BIN symbolic-ref HEAD 2>/dev/null)"
if [[ ! -z "$GIT_BRANCH" ]]; then
GIT_BRANCH="${GIT_BRANCH#refs/heads/}"
# Get Git status # Working tree status (red when dirty)
local GIT_STATUS="$($PS1_GIT_BIN status --porcelain 2>/dev/null)" local branch_color="$GREEN"
[[ -n "$GIT_STATUS" ]] && GIT_DIRTY=1 git diff --no-ext-diff --quiet --exit-code --ignore-submodules || branch_color="$RED"
fi
fi # Format Git info
git_prompt=" #$branch_color$branch$NOCOLOR"
fi fi
# Build B&W prompt for Git # Only show username if not default
[[ ! -z "$GIT_BRANCH" ]] && PS1_GIT=" #$GIT_BRANCH" local user_prompt=
[ "$USER" != "$local_username" ] && user_prompt="$user_color$USER$NOCOLOR"
# Calculate prompt length # Show hostname inside SSH session
local host_length=0
[ -n "$remote" ] && host_length=$((${#HOSTNAME}+1))
local PS1_length=$((${#USER}+${#PWDNAME}+${#PS1_GIT}+$host_length+2))
local FILL=
# If length is greater, than terminal width
if [[ $PS1_length -gt $COLUMNS ]]; then
# Strip working directory name
PWDNAME="...${PWDNAME:$(($PS1_length-$COLUMNS+3))}"
else
# Calculate fillsize
local fillsize=$(($COLUMNS-$PS1_length))
FILL=$GRAY
while [[ $fillsize -gt 0 ]]; do FILL=$FILL"─"; fillsize=$(($fillsize-1)); done
FILL=$FILL$NOCOLOR
fi
# Git status for prompt
if [ ! -z "$GIT_BRANCH" ]; then
local BRANCH_COLOR=$GREEN
[ ! -z $GIT_DIRTY ] && BRANCH_COLOR=$RED
PS1_GIT=" #$BRANCH_COLOR$GIT_BRANCH$NOCOLOR"
fi
# Set new color prompt
local host_prompt= local host_prompt=
[ -n "$remote" ] && host_prompt="@$YELLOW$HOSTNAME$NOCOLOR" [ -n "$remote" ] && host_prompt="@$YELLOW$HOSTNAME$NOCOLOR"
PS1="$USER_COLOR$USER$NOCOLOR$host_prompt:$WHITE$PWDNAME$NOCOLOR$PS1_GIT $FILL\n→ "
# Show delimiter if user or host visible
local login_delimiter=
[ -n "$user_prompt" ] || [ -n "$host_prompt" ] && login_delimiter=":"
# Format prompt
PS1="\n$user_prompt$host_prompt$login_delimiter$WHITE$dir_name$NOCOLOR$git_prompt\n$CYAN$prompt_symbol$NOCOLOR "
# Terminal title # Terminal title
local TITLE=$(basename $PWDNAME) local title="$(basename $dir_name)"
[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && TITLE="$TITLE \xE2\x80\x94 $HOSTNAME" [ -n "$remote" ] && title="$title \xE2\x80\x94 $HOSTNAME"
echo -ne "\033]0;$TITLE"; echo -ne "\007" echo -ne "\033]0;$title"; echo -ne "\007"
} }
# Set prompt command (title update and color prompt) # Show awesome prompt only if Git is istalled
PROMPT_COMMAND=prompt_command command -v git >/dev/null 2>&1 && PROMPT_COMMAND=prompt_command
# Set new B&W prompt (will be overwritten in `prompt_command` later with color prompt)
PS1='\u@\h:\w\$ '