#!/bin/bash

# Assume that this script has been imported as a submodule, get top level of parent git repo.

GIT_TOOLS_DIR="$( cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

GIT_TOOLS_HOOKS="$GIT_TOOLS_DIR/../git-tools-hooks"

DIR="$( cd -P "$( dirname "${BASH_SOURCE[0]}" )/../" && git rev-parse --show-toplevel )"

export CHANGELOG_FILE="$DIR/CHANGELOG.md"

export VERSION_FILE="$DIR/VERSION"

CHANGE_FILE="$DIR/._changed-files.txt"

prependToFile() {

echo -e "$2" | cat - $1 > .git-hotfix-tmp

mv .git-hotfix-tmp $1

}

prependToChangeLog() {

prependToFile "$CHANGELOG_FILE" "$1"

echo "Please review the CHANGELOG.md before continuing"

$EDITOR $CHANGELOG_FILE

}

getChangedFiles() {

(git diff --name-only --diff-filter=ACDMRTUX > $CHANGE_FILE \

&& git diff --cached --name-only --diff-filter=ACDMRTUX >> $CHANGE_FILE) \

|| exit $?

CHANGED_FILES=`cat $CHANGE_FILE`

rm $CHANGE_FILE

echo $CHANGED_FILES

}

getCurrentBranch() {

git branch | sed -n -e 's/^\* \(.*\)/\1/p'

}

updateVersion() {

echo "### Current VERSION file has version `cat VERSION`"

echo "### Calling git fetch to get VERSION from origin..."

git fetch

echo "### Current version: `git show origin/master:VERSION`"

}

getCommitMessagesSince() {

git log '--pretty=format:%B' --no-merges $1.. \

| grep -v "Updated $VERSION_FILE and $CHANGELOG_FILE" \

| perl -p -e 's/^\n//' \

| sed -e 's/^\([^-]\)/- \1/g' \

| sed -e 's/^\(- \)#/\1\\#/g'

}

if [ "$1" = "-h" ]; then

printUsage

exit

fi

if [ -f $CHANGE_FILE ]; then

echo "ERROR: $CHANGE_FILE exists"

exit 1

fi

if [ ! -f $CHANGELOG_FILE -o ! -f $VERSION_FILE ]; then

echo "ERROR: $VERSION_FILE and $CHANGELOG_FILE must exist"

exit 1

fi