shopt -s extglob

[ $(uname) == "Darwin" ] && SED_FLAG='-l' || SED_FLAG='-u'

# Syntax sugar.

indent() {

RE="s/^/ /"

sed $SED_FLAG "$RE"

}

# Clean up pip output

cleanup() {

sed $SED_FLAG -e 's/\.\.\.\+/.../g' | sed $SED_FLAG '/already satisfied/Id' | sed $SED_FLAG -e '/Overwriting/Id' | sed $SED_FLAG -e '/python executable/Id' | sed $SED_FLAG -e '/no previously-included files/Id'

}

# Buildpack Steps.

function puts-step (){

echo "-----> $@"

}

# Buildpack Warnings.

function puts-warn (){

echo " ! $@"

}

# Usage: $ set-env key value

function set-env (){

echo "export $1=$2" >> $PROFILE_PATH

}

# Usage: $ set-default-env key value

function set-default-env (){

echo "export $1=\${$1:-$2}" >> $PROFILE_PATH

}

# Usage: $ set-default-env key value

function un-set-env (){

echo "unset $1" >> $PROFILE_PATH

}

# Does some serious copying.

function deep-cp (){

find -H $1 -maxdepth 1 -name '.*' -a \( -type d -o -type f -o -type l \) -exec cp -a '{}' $2 \;

cp -r $1/!(tmp) $2

# echo copying $1 to $2

}

# Does some serious moving.

function deep-mv (){

deep-cp $1 $2

rm -fr $1/!(tmp)

find -H $1 -maxdepth 1 -name '.*' -a \( -type d -o -type f -o -type l \) -exec rm -fr '{}' \;

}

# Does some serious deleting.

function deep-rm (){

rm -fr $1/!(tmp)

find -H $1 -maxdepth 1 -name '.*' -a \( -type d -o -type f -o -type l \) -exec rm -fr '{}' \;

}