WIP - normalize svg icons script

normalize-svg-icons

#!/bin/bash

size="$1"

NC='\033[0m' # No Color
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
BLUE='\033[0;34m'

VALID_ICON='\xE2\x9C\x93'
NOT_VALID_ICON='\xE2\x9C\x97'
ARROW_ICON='\xE2\x86\x92'
WARNING_ICON='\xE2\x9A\xA0'
SQUARE_ICON='\xE2\x96\xAA'

function log_info {
    echo -e "${BLUE}${SQUARE_ICON} $1${NC}"
}

function log_error {
    echo -e "${RED}${NOT_VALID_ICON} $1${NC}"
}

function log_success {
    echo -e "${GREEN}${VALID_ICON} $1${NC}"
}

function log_warning {
    echo -e "${YELLOW}${WARNING_ICON} $1${NC}"
}

function log_message {
    echo -e " ${ARROW_ICON} $1"
}

echo ''
echo 'normalize-svg-icons'
echo '-------------------'
echo ''

echo ''
echo 'Checking system...'
echo ''

which rsvg-convert > /dev/null 2>&1
if [[ ! $? -eq 0 ]]; then
    log_error 'rsvg-convert not installed.'
    exit 1
else
    log_success 'rsvg-convert installed.'
fi

which svgcleaner > /dev/null 2>&1
if [[ ! $? -eq 0 ]]; then
    log_error 'svgleaner not installed.'
    log_message 'Please, visit the page project at https://github.com/RazrFalcon/svgcleaner and install it.'
    exit 1
else
    log_success 'svgleaner installed.'
fi

echo ''
echo 'Checking arguments...'
echo ''

if [[ -z "$size" ]]; then
    echo ""
    log_warning 'PLEASE, SPECIFY A SIZE.'
    echo ""
    exit 1
fi

rm -rf "$size"
mkdir -p "$size"

echo ''
echo 'Starting normalization...'
echo ''

COUNTER=0
start_time="$(date +%s)"

find . -maxdepth 1 -type f -name "*.svg" -print0 | while IFS= read -r -d '' file; do
    if [[ ! -h "$file" ]]; then
        log_info "$file found..."

        rsvg-convert "$file" -h "$size" -a -f svg -o "$size/$file"
        log_success "resized."

        svgcleaner "$size/$file" "$size/$file" &> /dev/null
        log_success "cleaned."

        let COUNTER++
    fi
done

end_time="$(date +%s)"

echo ''
echo '-------------------'
echo ''

log_message "$COUNTER file(s) processed in $(($end_time - $start_time)) second(s)."

Based on svgscale Numix tool, the idea is to change the height of a bunch icons keeping the aspect ratio and (not yet done) clean up the files using svgcleaner before use them in Fontello to build a custom icon font.