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cd /Users/ashishkashyap/Documents/ashprojs/Personalsite && set -euo pipefail

DRY_RUN=${DRY_RUN:-}

TARGET_DIRS=(public assets)

QUAL_JPG=${QUAL_JPG:-82}

COMP_PNG=${COMP_PNG:-9}

LOG_FILE=.image-optimize.$(date +%Y%m%d-%H%M%S).log

printf "Starting image optimization...\nLog: %s\n" "$LOG_FILE"

# Ensure we can run sharp-cli (fetch once; subsequent calls are cached by npx)

NPX="npx --yes sharp-cli@^2.2.1"

# Find candidate images

find "${TARGET_DIRS[@]}" -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" -o -iname "*.webp" \) -print0 2>/dev/null | \

while IFS= read -r -d '' f; do

orig="$f"

tmp="${f}.opt"

ext="${f##*.}"

lc_ext="${ext,,}"

case "$lc_ext" in

jpg|jpeg)

cmd="$NPX --input \"$orig\" --output \"$tmp\" --quality $QUAL_JPG --progressive --sequential"

;;

png)

# Sharp compressionLevel 0-9; use palette for smaller size when possible

cmd="$NPX --input \"$orig\" --output \"$tmp\" --compressionLevel $COMP_PNG"

;;

webp)

cmd="$NPX --input \"$orig\" --output \"$tmp\" --quality $QUAL_JPG"

;;

*)

continue

;;

esac

if [ -n "$DRY_RUN" ]; then

echo "[DRY] $cmd" | tee -a "$LOG_FILE"

continue

fi

echo "Optimizing: $orig" | tee -a "$LOG_FILE"

# Execute command

eval "$cmd" >/dev/null 2>&1 || { echo " -> Failed to process: $orig" | tee -a "$LOG_FILE"; rm -f "$tmp"; continue; }

# If temp not created, skip

[ -f "$tmp" ] || { echo " -> No output produced for: $orig" | tee -a "$LOG_FILE"; continue; }

orig_size=$(stat -f%z "$orig" 2>/dev/null || stat -c%s "$orig")

new_size=$(stat -f%z "$tmp" 2>/dev/null || stat -c%s "$tmp")

if [ "$new_size" -lt "$orig_size" ]; then

saved=$((orig_size - new_size))

pct=$(awk "BEGIN { printf \"%.1f\", ($saved / $orig_size) * 100 }")

mv -f "$tmp" "$orig"

echo " -> Reduced by $saved bytes (${pct}%)" | tee -a "$LOG_FILE"

else

rm -f "$tmp"

echo " -> No gain; kept original" | tee -a "$LOG_FILE"

fi

done

echo "Done. Detailed log at $LOG_FILE"