convert image script

convert_heic.sh

@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+shopt -s nullglob nocaseglob
+
+convert_one() {
+    local src="$1"
+
+    if [[ ! -f "$src" ]]; then
+        echo "ERROR: file not found: $src"
+        return 1
+    fi
+
+    local base="${src%.*}"
+    local dst="${base}.jpg"
+    local tmp="${base}.tmp.jpg"
+
+    echo "Converting: $src"
+
+    # Convert HEIC -> JPEG
+    if ! magick "$src" \
+        -auto-orient \
+        -quality 100 \
+        -sampling-factor 4:4:4 \
+        "jpg:$tmp"; then
+        echo "ERROR: conversion failed: $src"
+        rm -f "$tmp"
+        return 1
+    fi
+
+    # Verify JPEG exists and is not empty
+    if [[ ! -s "$tmp" ]]; then
+        echo "ERROR: output JPEG is empty: $tmp"
+        rm -f "$tmp"
+        return 1
+    fi
+
+    echo "Copying metadata..."
+
+    # Copy all metadata from HEIC
+    if ! exiftool \
+        -overwrite_original \
+        -TagsFromFile "$src" \
+        -all:all \
+        -unsafe \
+        "$tmp" >/dev/null; then
+        echo "ERROR: metadata copy failed: $src"
+        rm -f "$tmp"
+        return 1
+    fi
+
+    # Preserve filesystem timestamps
+    touch -r "$src" "$tmp"
+
+    # Replace existing JPEG atomically
+    mv -f "$tmp" "$dst"
+
+    # Final verification
+    if [[ ! -s "$dst" ]]; then
+        echo "ERROR: final JPEG missing: $dst"
+        return 1
+    fi
+
+    # Delete original only after success
+    rm -f "$src"
+
+    echo "Done: $dst"
+    echo "Removed: $src"
+}
+
+if [[ $# -gt 0 ]]; then
+    convert_one "$1"
+else
+    files=( *.heic *.HEIC )
+
+    if [[ ${#files[@]} -eq 0 ]]; then
+        echo "No HEIC files found."
+        exit 0
+    fi
+
+    for f in "${files[@]}"; do
+        convert_one "$f"
+    done
+fi