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#!/usr/bin/env bash
# shellcheck disable=SC2059
DEST="$1"
SOURCE="$2"
MINIFY_FLAGS=("--html-keep-document-tags" "--html-keep-whitespace" "--recursive" "--sync")
COLOR_RED="\e[31m"
COLOR_GREEN="\e[32m"
COLOR_RESET="\e[39m"
if [ -z "$DEST" ] || [ -z "$SOURCE" ]; then
echo "Usage: $0 <target> <ver>"
printf "${COLOR_RED}ERROR: Either <DEST> or <SOURCE> is missing.${COLOR_RESET}\n"
exit 1
fi
if ! [ -d "$DEST" ]; then
printf "${COLOR_RED}ERROR: Output directory $DEST does not exist.${COLOR_RESET}\n"
exit 1
fi
# Check if minify is in the PATH
if which minify > /dev/null 2>&1
then
MINIFY_BIN=$(which minify)
else
# Backwards compatibility
if [ -f /scripts/minify ]
then
MINIFY_BIN=/scripts/minify
else
printf "${COLOR_RED}ERROR: minify not found in PATH. Run 'make setup'.${COLOR_RESET}\n"
exit 1
fi
fi
# Minify assets
printf "${COLOR_GREEN}INFO: Minifying all assets...${COLOR_RESET}\n"
if $MINIFY_BIN "${MINIFY_FLAGS[@]}" --match="\.html$|\.css$|\.json|\.svg$" -o "${DEST}" "${SOURCE}"; then
printf "${COLOR_GREEN}INFO: Assets minified!${COLOR_RESET}\n"
# Calculate sizes before and after minifying/gzipping the static files (HTML, CSS, JS)
SIZE_BEFORE_MINIFY=$(du -sh "$SOURCE" | awk '{print $1}')
SIZE_AFTER_MINIFY=$(du -sh "$DEST" | awk '{print $1}')
# Print size results
printf "${COLOR_GREEN}INFO: Minified with "
$MINIFY_BIN --version
printf "${COLOR_RESET}"
printf "${COLOR_GREEN}INFO: Size before minifying: $SIZE_BEFORE_MINIFY ${COLOR_RESET}\n"
printf "${COLOR_GREEN}INFO: Size after minifying: $SIZE_AFTER_MINIFY ${COLOR_RESET}\n"
#
# Test that minification worked by comparing the number of the source and
# destination files.
#
SOURCE_FILES_COUNT=$(find "$SOURCE" -type f | wc -l)
DEST_FILES_COUNT=$(find "$DEST" -type f | wc -l)
SOURCE_DIR_COUNT=$(find "$SOURCE" -type d | wc -l)
DEST_DIR_COUNT=$(find "$DEST" -type d | wc -l)
printf "${COLOR_GREEN}INFO: Checking that the number of source and destination files is the same...${COLOR_RESET}\n"
if [[ $SOURCE_FILES_COUNT -eq $DEST_FILES_COUNT ]]; then
printf "${COLOR_GREEN}SUCCESS: File count in $SOURCE and $DEST: $SOURCE_FILES_COUNT/$DEST_FILES_COUNT ${COLOR_RESET}\n"
else
printf "${COLOR_RED}ERROR: File count in $SOURCE and $DEST do not match: $SOURCE_FILES_COUNT/$DEST_FILES_COUNT ${COLOR_RESET}"
exit 1
fi
printf "${COLOR_GREEN}INFO: Checking that the number of source and destination directories is the same...${COLOR_RESET}\n"
if [[ $SOURCE_DIR_COUNT -eq $DEST_DIR_COUNT ]]; then
printf "${COLOR_GREEN}SUCCESS: Directory count in $SOURCE and $DEST: $SOURCE_DIR_COUNT/$DEST_DIR_COUNT ${COLOR_RESET}\n"
else
printf "${COLOR_RED}ERROR: Directory count in $SOURCE and $DEST do not match: $SOURCE_DIR_COUNT/$DEST_DIR_COUNT ${COLOR_RESET}"
exit 1
fi
else
printf "${COLOR_RED}ERROR: Couldn't minify assets${COLOR_RESET}\n"
exit 1
fi
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