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canhnht/bash_aliases.sh

Last active June 13, 2018 22:31
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  1. canhnht renamed this gist May 3, 2017. 1 changed file with 0 additions and 0 deletions.
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  2. canhnht created this gist May 2, 2017.
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    txtblk='\e[0;30m' # Black - Regular
    txtred='\e[0;31m' # Red
    txtgrn='\e[0;32m' # Green
    txtylw='\e[0;33m' # Yellow
    txtblu='\e[0;34m' # Blue
    txtpur='\e[0;35m' # Purple
    txtcyn='\e[0;36m' # Cyan
    txtwht='\e[0;37m' # White

    bldblk='\e[1;30m' # Black - Bold
    bldred='\e[1;31m' # Red
    bldgrn='\e[1;32m' # Green
    bldylw='\e[1;33m' # Yellow
    bldblu='\e[1;34m' # Blue
    bldpur='\e[1;35m' # Purple
    bldcyn='\e[1;36m' # Cyan
    bldwht='\e[1;37m' # White

    undblk='\e[4;30m' # Black - Underline
    undred='\e[4;31m' # Red
    undgrn='\e[4;32m' # Green
    undylw='\e[4;33m' # Yellow
    undblu='\e[4;34m' # Blue
    undpur='\e[4;35m' # Purple
    undcyn='\e[4;36m' # Cyan
    undwht='\e[4;37m' # White

    bakblk='\e[40m' # Black - Background
    bakred='\e[41m' # Red
    badgrn='\e[42m' # Green
    bakylw='\e[43m' # Yellow
    bakblu='\e[44m' # Blue
    bakpur='\e[45m' # Purple
    bakcyn='\e[46m' # Cyan
    bakwht='\e[47m' # White

    txtrst='\e[0m' # Text Reset


    parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
    }

    # The various escape codes that we can use to color our prompt.
    RED="\[\033[0;31m\]"
    YELLOW="\[\033[1;33m\]"
    GREEN="\[\033[0;32m\]"
    BLUE="\[\033[1;34m\]"
    LIGHT_RED="\[\033[1;31m\]"
    LIGHT_GREEN="\[\033[1;32m\]"
    WHITE="\[\033[1;37m\]"
    LIGHT_GRAY="\[\033[0;37m\]"
    COLOR_NONE="\[\e[0m\]"

    # Detect whether the current directory is a git repository.
    function is_git_repository {
    git branch > /dev/null 2>&1
    }

    # Determine the branch/state information for this git repository.
    function set_git_branch {
    # Capture the output of the "git status" command.
    git_status="$(git status 2> /dev/null)"

    # Set color based on clean/staged/dirty.
    if [[ ${git_status} =~ "working directory clean" ]]; then
    state="${bldgrn}"
    elif [[ ${git_status} =~ "Changes to be committed" ]]; then
    state="${bldylw}"
    else
    state="${LIGHT_RED}"
    fi

    # Set arrow icon based on status against remote.
    remote_pattern="Your branch is (.*) (of|by|with)"
    if [[ ${git_status} =~ ${remote_pattern} ]]; then
    # echo "ofof = ${BASH_REMATCH[1]}"
    if [[ ${BASH_REMATCH[1]} == ahead* ]]; then
    remote="↑"
    elif [[ ${BASH_REMATCH[1]} == behind* ]]; then
    remote="↓"
    else
    remote="--"
    fi
    else
    remote=""
    fi

    diverge_pattern="Your branch and (.*) have diverged"
    if [[ ${git_status} =~ ${diverge_pattern} ]]; then
    remote="↕"
    fi

    # Get the name of the branch.
    branch_pattern="^(# )?On branch ([^${IFS}]*)"
    if [[ ${git_status} =~ ${branch_pattern} ]]; then
    branch=${BASH_REMATCH[2]}
    fi
    branch="$(git rev-parse --abbrev-ref HEAD)" # replace all 4 lines with this.

    # Set the final branch string.
    # echo "bran ${branch}"
    BRANCH="${state}(${branch})${remote}${COLOR_NONE} "
    }

    # Return the prompt symbol to use, colorized based on the return value of the
    # previous command.
    function set_prompt_symbol () {
    if test $1 -eq 0 ; then
    PROMPT_SYMBOL="${GREEN}<\$>${COLOR_NONE}"
    else
    PROMPT_SYMBOL="${LIGHT_RED}<\$>${COLOR_NONE}"
    fi
    }

    # Determine active Python virtualenv details.
    function set_virtualenv () {
    if test -z "$VIRTUAL_ENV" ; then
    PYTHON_VIRTUALENV=""
    else
    PYTHON_VIRTUALENV="${BLUE}[`basename \"$VIRTUAL_ENV\"`]${COLOR_NONE} "
    fi
    }

    # Set the full bash prompt.
    function set_bash_prompt () {
    # Set the PROMPT_SYMBOL variable. We do this first so we don't lose the
    # return value of the last command.
    set_prompt_symbol $?

    # Set the PYTHON_VIRTUALENV variable.
    set_virtualenv

    # Set the BRANCH variable.
    if is_git_repository ; then
    # echo "is git repo"
    set_git_branch
    else
    BRANCH=''
    fi

    SHOW_FACE="\`if [ \$? = 0 ]; then echo \[\e[33m\]^_^\[\e[0m\]; else echo \[\e[31m\]O_O\[\e[0m\]; fi\`"
    PS1="\n${PYTHON_VIRTUALENV}${GREEN}${txtred}\u@\h:${bldcyn}[\w]:${bldgrn}${BRANCH}\n${SHOW_FACE}..${PROMPT_SYMBOL} "
    }

    PROMPT_COMMAND=set_bash_prompt