bash script to index bower components for fourseven:meteor-scss because [email protected] had breaking changes to the build chain @see https://github.com/fourseven/meteor-scss/issues/138

indexer.sh

```
#!/usr/bin/env bash

### first half of script iterates over local packages, cd's into each


echo "======[Curating Bower Dependencies]==============================="

# not -f because this is a -dIRECTORY!
if [ -d bower_components ]; then
    echo "[Bower Dependency Indexer] Dependencies Found!"

    # ensure we've got somewhere to put the indexes, and hide errors
    mkdir indexes 2> /dev/null

    deps="bower_components"
    ##curDir=${pwd}
    cd "$deps"

    # itterate over bower_components subdirs
    for dir in $(find . -mindepth 1 -maxdepth 1 -type d); do

        dir=$(echo "$dir" | grep -Po "(?<=\.\/).*")

        echo -e "   [+] Indexing \`$dir\`..."

        # use this too often not to save as a var
        indexFile="../indexes/${dir}.json"

        # back up if theres something there
        if [ -f "$indexFile" ]; then

            # cleaning up if theres something backed up
            rm -fr "../indexes/.${dir}.json~"
            # do the backup
            echo -e "      [o] old index file found... backing up"
            mv "$indexFile" "../indexes/.${dir}.json~"
        fi

        # create file
        touch "$indexFile"

        # open json doc
        echo -e "[" >> "$indexFile"

        # list files in cur dir, grep them
        find "${PWD}/${dir}" | grep -Po "bower_components\/.*?\/_[\w-]*\.scss" | sed -e "s/^.*$/  \'&\',/" >> "$indexFile"

        # trim last comma
        #
        # https://unix.stackexchange.com/questions/162377/sed-remove-the-very-last-occurrence-of-a-string-a-comma-in-a-file
        #
        #echo "$indexFile"
        #sleep 0.500
        #cat "$indexFile" | sed -n -e x -e '$ {s/,$//;p;x;}' -e '2,$ p' > "${indexFile}2"
        #sed 's/, *$//' "$indexFile"
        # sed '/\,/,$d' "$indexFile"
        ### TODO use sed to format paths, wrap with two 's and a ,
        #
        #
        # Annnnnnnnnnnndddd... none of that works ( the trailing comma )

        # close json doc
        echo -e "]" >> "$indexFile"

    done

    # back to package's root
    cd ../
fi



```