git-info

#!/bin/bash -e
#
# git-info
#
# License: MIT
# Copyright (c) 2012 Lennart C. L. Kats

WEB=
if [ "$1" == "-w" ]; then
  WEB=-w
  shift
fi

REV=
if [ "$1" != "" ] && git rev-parse --verify "$1" &>/dev/null && [ ! -e "$1" ]; then
  REV=`git rev-parse $1`
  shift
elif [ "$1" == "-r" ]; then
  REV=`git rev-parse $2`
  shift; shift
fi

if [ "$1" == "-w" ]; then
  WEB=-w
  shift
fi

if [ "$1" == "" ]; then
  FILE=
else
  FILE="$1"

  FILE=`cd -P -- "$(dirname -- "$FILE")" && echo "$(pwd -P)/$(basename -- "$FILE")"`
  while [ ! -e .git ] && [ "`pwd`" != "/" ]; do
    cd ..
  done
  BASEPATH=`ls -d $(pwd -P)`
  RELPATH=`echo "$FILE" | sed "s|$BASEPATH/||"`
fi

if ! git remote &>/dev/null; then
  cd `dirname "$FILE"`
  FILE="`basename "$FILE"`"
fi

REMOTE=$(
  git remote -v | grep 'origin.*push' \
    | grep -oE '(bitbucket.org|github.com)[:/][^/]+/[^ ]+' \
    | sed -E 's/(.*)\.git/\1/' \
    | sed -E 's/(bitbucket.org|github.com):/\1\//' \
) || (echo 'No remote for current directory' >&2 && exit 1)


if [ ! "$REMOTE" ]; then
  echo Repository not recognized:
  git remote -v
  exit 1
fi

BRANCH=`git-get-branch 2>/dev/null || git rev-parse HEAD`
BRANCH_IN_URL=`echo $BRANCH | sed 's!/!%2F!g'`  

if [ "$FILE" ] && [ ! -d "$FILE" ]; then
  git status "$FILE"
fi

if echo $REMOTE | grep -q bitbucket.org; then
  BASE_URL="https://$REMOTE"

  if [ $REV ] && [ ! "$FILE" ]; then
    URL="$BASE_URL/commits/$REV"
    DIFFURL= # not supported
  elif [ $REV ]; then
    URL="$BASE_URL/src/$REV/$RELPATH?at=$BRANCH"
    if [ ! -d "$FILE" ]; then
      DIFFURL="$BASE_URL/diff/$RELPATH?diff1=master&diff2=$REV&at=$BRANCH"
    fi
  else
    URL="$BASE_URL/src/$BRANCH_IN_URL/$RELPATH?at=$BRANCH"
    DIFFURL="$BASE_URL/diff?diff1=master&diff2=$BRANCH"
  fi
else
  USER=`echo $REMOTE | perl -pe 's|github.com.([^/]+)/.*|$1|'`
  REPO=`echo $REMOTE | perl -pe 's|github.com.[^/]+/(.*)|$1|'`
  BASE_URL="https://github.com/$USER/$REPO"

  if [ $REV ] && [ ! "$FILE" ]; then
    URL="$BASE_URL/commit/$REV"
    DIFFURL="$BASE_URL/compare/master...$REV"
  elif [ $REV ]; then
    URL="$BASE_URL/blob/$REV/$RELPATH"
    DIFFURL= # not supported
  else
    URL="$BASE_URL/blob/$BRANCH_IN_URL/$RELPATH"
    DIFFURL= # not supported
  fi
fi

open() {
    if which -s start && ! [[ `uname -s` =~ Darwin|Linux ]]; then
      start "$1"
    elif which -s xdg-open && ! [[ `uname -s` =~ Darwin ]]; then
      xdg-open "$1"
    elif which -s gnome-open && ! [[ `uname -s` =~ Darwin ]]; then
      gnome-open "$1"
    elif which -s kde-open && ! [[ `uname -s` =~ Darwin ]]; then
      kde-open "$1"
    else
      command open "$1"
    fi
}

echo "# URL:"
echo $URL

if [ $DIFFURL ] && [ "$BRANCH" != "master" ]; then
  echo "# Diff URL:"
  echo $DIFFURL
fi

if [ $WEB ]; then
  open $URL
fi