git-brst - utility for display details about commits for branch

git-brst

#!/usr/bin/env bash

# Check is in git repo
if ! [ -d .git ] || ! git rev-parse --git-dir > /dev/null 2>&1; then 
    echo "Git repository not found";
    exit 1;
fi

branch=${1};
commits_limit=5
red='\e[1;31m'
green='\e[1;32m'
white='\e[1;37m'
color_off='\e[0m'

if [ -z $branch ]; then
    # If no argument, use current branch
    branch=`git rev-parse --abbrev-ref HEAD`;
fi

# Check out branch existing
git show-ref refs/heads/
if [[ $(git show-ref refs/heads/${branch}) == "" ]]; then
    echo " ${branch}         --  not exist locally"
    if [[ $(git show-ref refs/remotes/origin/${branch}) == "" ]]; then
        echo " origin/${branch}  --  not exist"
    else
        echo " origin/${branch}  --  exist"
    fi
    exit
fi

function get_log {
    target=${1}
    dest=${2}
    git log ${1}..${2} --pretty=format:"%C(auto) %h  %ad  %s [%an]" --date=short
}

function lines {
    if [[ "$1" == "" ]]; then
        echo 0
    else
        echo "$1" | wc -l
    fi
}

function out_log {
    count=$(lines "${1}")
    if [[ ${count} -gt ${commits_limit} ]]; then
        echo "${1}" | head -n ${commits_limit}
        echo " ..."
    else 
        echo "${1}"
    fi
    echo ""
}

function warn {
    echo -e "${red}${1}${color_off}"
}

function info {
    echo -e "${green}${1}${color_off}"
}

function header {
   echo -e "${white}${1}${color_off}"
}

unique=$(get_log master ${branch})
falls=$(get_log ${branch} master)
unpushed=$(get_log ${branch} origin/${branch})
unpulled=$(get_log origin/${branch} ${branch})

unique_count=$(lines "${unique}")
falls_count=$(lines "${falls}")
unpushed_count=$(lines "${unpushed}")
unpulled_count=$(lines "${unpulled}")

if [[ ${unique_count} > 0 ]]; then
    header "Has ${unique_count} unique commits  (master..${branch})"
    out_log "${unique}"
else
    header "No unique             (master..${branch})";
fi

if [[ ${falls_count} > 0 ]]; then
    header "Fall on ${falls_count} commits   (${branch}..master)"
    out_log "${falls}"
else
    header "No falls              (${branch}..master)"
fi

if [[ ${unpushed_count} > 0 ]]; then
    header "Can push ${unpushed_count} commits          (${branch}..origin/${branch})"
    out_log "${unpushed}"
else
    header "No unpushed commits   (${branch}..origin/${branch})"
fi

if [[ ${unpulled_count} > 0 ]]; then
    header "Can pull ${unpulled_count} commits       (origin/${branch}..${branch})"
    out_log "${unpulled}"
else
    header "No unpulled commits   (origin/${branch}..${branch})"
fi

echo "====================="
if [[ ${unique_count} -gt 0 ]]; then
    info "Contain ${unique_count} commits"
else
    warn "Contain 0 commits (can be deleted)"
fi

if [[ ${falls_count} -gt 0 ]]; then
    warn "Unmerge commits: ${falls_count}"
else
    info "Unmerge commits: ${falls_count} (with 'master')"
fi

if [[ ${unpushed_count} -gt 0 ]]; then
    warn "Unpushed commits: ${unpushed_count}"
else
    info "Unpushed commits: ${unpushed_count}"
fi

if [[ ${unpulled_count} -gt 0 ]]; then
    warn "Unpulled commits: ${unpulled_count}"
else
    info "Unpulled commits: ${unpulled_count}"
fi