#!/bin/bash

VCS_SUPPORTED="GIT, Subversion or Mercurial"

GIT_LOG_BASE_OPTS="--oneline"
HG_LOG_BASE_OPTS="--follow"

print_usage()
{
    echo "$(basename $0) -- log for version control (${VCS_SUPPORTED})."
    echo "Usage: $(basename $0) [OPTIONS...]"
}

if [ "x${1}" = "x--help" ]; then
    print_usage
    exit 1
fi

SVN_LOG_REV_INFO_COLOR=$(echo -e '\033[1;31m')  # Red
SVN_LOG_SEPARATION_COLOR=$(echo -e '\033[1;32m')    # Green
NORMAL=$(echo -e '\033[0m')

if git diff 1> /dev/null 2>&1; then
    git log ${GIT_LOG_BASE_OPTS} "$@"
elif svn diff 1> /dev/null 2>&1; then
    # Colore les lignes --------- en vert
    # Colore en rouge les infos de la révision
    svn log "$@" | sed -e "s/^-\+$/${SVN_LOG_SEPARATION_COLOR}\0${NORMAL}/" \
        -e "s/^r[0-9]\+.\+$/${SVN_LOG_REV_INFO_COLOR}\0${NORMAL}/" | less -RFX
elif hg status 1> /dev/null 2>&1; then
    hg glog ${HG_LOG_BASE_OPTS} "$@"
else
    echo "Not a ${VCS_SUPPORTED} repository"
    exit 1
fi