Implement [shellcheck](https://www.shellcheck.net/) recommendations

release.sh

@@ -10,6 +10,7 @@
 
 # file in which to update version number
 FILE_VERSION="VERSION"
+# file to use as our change log
 FILE_CHANGELOG="CHANGELOG.md"
 
 NOW="$(date +'%Y-%m-%d')"
@@ -22,7 +23,7 @@ CYAN="\033[1;36m"
 WHITE="\033[1;37m"
 RESET="\033[0m"
 
-LATEST_HASH=`git log --pretty=format:'%h' -n 1`
+LATEST_HASH=$(git log --pretty=format:'%h' -n 1)
 
 # current Git branch
 BRANCH_CURRENT=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')
@@ -50,7 +51,7 @@ fi
 if [ ! -f $FILE_VERSION ]; then
     echo -ne "${QUESTION_FLAG} ${CYAN}Can't find version file (${FILE_VERSION}), create one?"
 
-    read RESPONSE
+    read -r RESPONSE
     if [[ $RESPONSE =~ [yY](es)* ]] || [ "$RESPONSE" = "" ]; then
         echo "0.0.0" > $FILE_VERSION
     else
@@ -62,7 +63,7 @@ fi
 if [ ! -f $FILE_CHANGELOG ]; then
     echo -ne "${QUESTION_FLAG} ${CYAN}Can't find changelog file (${FILE_CHANGELOG}), create one?"
 
-    read RESPONSE
+    read -r RESPONSE
     if [[ $RESPONSE =~ [yY](es)* ]] || [ "$RESPONSE" = "" ]; then
         echo "" > $FILE_CHANGELOG
     else
@@ -71,13 +72,13 @@ if [ ! -f $FILE_CHANGELOG ]; then
 fi
 
 # Continue to guess new value for our version
-BASE_STRING=`cat $FILE_VERSION`
+BASE_STRING=$(cat $FILE_VERSION)
 
-if [ $BASE_STRING = "" ]; then
+if [ "$BASE_STRING" = "" ]; then
     BASE_STRING="0.0.0"
 fi
 
-BASE_LIST=(`echo $BASE_STRING | tr '.' ' '`)
+BASE_LIST=($(echo $BASE_STRING | tr '.' ' '))
 V_MAJOR=${BASE_LIST[0]}
 V_MINOR=${BASE_LIST[1]}
 V_PATCH=${BASE_LIST[2]}
@@ -91,59 +92,59 @@ V_PATCH=$((V_PATCH + 1))
 
 SUGGESTED_VERSION="$V_MAJOR.$V_MINOR.$V_PATCH"
 echo -ne "${QUESTION_FLAG} ${CYAN}Enter a version number [${WHITE}$SUGGESTED_VERSION${CYAN}]: "
-read NEW_VERSION
+read -r NEW_VERSION
 if [ "$NEW_VERSION" = "" ]; then
     NEW_VERSION=$SUGGESTED_VERSION
 fi
 echo -e "${NOTICE_FLAG} Will set new version to be ${WHITE}$NEW_VERSION"
 echo ""
 echo -ne "${WARNING_FLAG} This is the last chance to bail out before anything has happened."
-read
+read -r
 
 # Set up our release branch name
 BRANCH_RELEASE=release-$NEW_VERSION
 
 # create the release branch from the -develop branch
-git checkout -b $BRANCH_RELEASE $BRANCH_DEV
+git checkout -b "$BRANCH_RELEASE" "$BRANCH_DEV"
 
 # Set our new version to our version file
-echo $NEW_VERSION > $FILE_VERSION
+echo "$NEW_VERSION" > "$FILE_VERSION"
 
 # Create our changelog
 echo "## $NEW_VERSION ($NOW)" > tmpfile
 git log --pretty=format:"  - %h %ad | %s%d [%an]" --date=short --no-merges "$BASE_STRING"...HEAD >> tmpfile
 echo "" >> tmpfile
 echo "" >> tmpfile
-cat $FILE_CHANGELOG >> tmpfile
+cat "$FILE_CHANGELOG" >> tmpfile
 mv tmpfile $FILE_CHANGELOG
 
 echo -e "$ADJUSTMENTS_MSG"
-read
+read -r
 echo -e "$PUSHING_MSG"
 
 # Make sure changes have been added
-git add $FILE_VERSION $FILE_CHANGELOG
+git add "$FILE_VERSION" "$FILE_CHANGELOG"
 
 # Commit version number increment
 git commit -am "Incrementing version number to $NEW_VERSION"
 
 # Merge release branch with the new version number into master
-git checkout $BRANCH_MASTER
+git checkout "$BRANCH_MASTER"
-git merge --no-ff $BRANCH_RELEASE
+git merge --no-ff "$BRANCH_RELEASE"
 
 # Create tag for new version from -master
 git tag -am "Tag version ${NEW_VERSION}." "$NEW_VERSION"
 
 # Merge release branch with the new version number back into develop
-git checkout $BRANCH_DEV
+git checkout "$BRANCH_DEV"
-git merge --no-ff $BRANCH_RELEASE
+git merge --no-ff "$BRANCH_RELEASE"
 
 # Remove release branch
-git branch -d $BRANCH_RELEASE
+git branch -d "$BRANCH_RELEASE"
 
 echo -ne "${QUESTION_FLAG} ${CYAN}Push?"
 
-read PUSH
+read -r PUSH
 if [[ $PUSH =~ [yY](es)* ]] || [ "$PUSH" = "" ]; then
     git push --all origin
 fi