Writes a ChangeLog depending on your git commits

git-write-changelog

#!/bin/sh
     
WRITE=false
FILE="ChangeLog"
GITPATH="master..HEAD"
 
while [ "$1" != "" ]; do
        case $1 in
                -c )
                        GITPATH=""
                        ;;
                -w )
                        WRITE=true
                        ;;
                -f )
                        shift
                        FILE="$1"
                        ;;
                * )
                        GITPATH="$1"
                        ;;
        esac
        shift
done
 
if `git branch --no-color | grep -q '^\*'`; then
        OUTPUT=""
        HEAD=""
        BRANCH=`git branch --no-color | grep '^\*' | grep -v 'no branch' | sed 's/^* //g' | sed 's/.*\///g' | grep '^[0-9][0-9.]'`
        if [ "$BRANCH" != "" ]; then
                DATE=`date +%Y-%m-%d`
                DIR=${PWD##*/}
                USER=`git config --get user.name`
                HEAD="$DATE         [RELEASE] Release of $DIR $BRANCH ($USER)"$'\n'
        fi
 
        LOG=`git log --pretty=format:"%ad %h %s (%an)" --date=short --no-merges $GITPATH`      
        if [ "$LOG" != "" ]; then
                OUTPUT=$HEAD$LOG$'\n'$'\n';
        fi
 
        if [ -f $FILE ]; then
                OUTPUT=$OUTPUT"`cat $FILE`"
        fi
 
        if $WRITE; then
                echo "$OUTPUT" > $FILE
 
                OUTPUT=$OUTPUT$'\n'$'\n'"File $FILE was written."
        fi
 
        echo "$OUTPUT"
 
fi
 
# USAGE
# git write-changelog [-c] [-w] [-f <filename>] [<path>]
# git write-changelog [-w] [-f ChangeLog] [master..HEAD]
# -c: Write log for whole changes
# -w: Write log to file
# -f <filename>: Name of changelog file
# path: path for git log