70 lines
1.6 KiB
Bash
Executable File
70 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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#
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# sync-newer-images — For each top-level image in SRC, find any matching
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# filename recursively under DEST and copy over it if SRC is newer.
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# Works on Linux and macOS (bash 3.2+ compatible).
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usage() {
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cat <<'EOF'
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Usage: sync-newer-images [options] <destination> <source>
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For each top-level image in source, find any matching filename recursively
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under destination and copy over it if the source file is newer.
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Arguments:
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destination Path to copy TO
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source Path to copy FROM
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Options:
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-h, --help Show this help message and exit
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EOF
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exit 0
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}
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for arg in "$@"; do
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case "$arg" in
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-h|--help) usage ;;
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esac
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done
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if [ $# -lt 2 ]; then
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echo "Error: destination and source are required" >&2
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echo "Usage: sync-newer-images <destination> <source>" >&2
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exit 1
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fi
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DEST="$1"
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SRC="$2"
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if [ ! -d "$DEST" ]; then
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echo "Error: destination '$DEST' is not a directory" >&2
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exit 1
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fi
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if [ ! -d "$SRC" ]; then
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echo "Error: source '$SRC' is not a directory" >&2
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exit 1
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fi
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copied=0
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for srcfile in "$SRC"/*; do
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[ -f "$srcfile" ] || continue
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ext="${srcfile##*.}"
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case "$(echo "$ext" | tr '[:upper:]' '[:lower:]')" in
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jpg|jpeg|png|gif|heic|webp|bmp|tiff|tif) ;;
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*) continue ;;
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esac
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filename="${srcfile##*/}"
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while IFS= read -r destfile; do
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if [ -f "$destfile" ] && [ "$srcfile" -nt "$destfile" ]; then
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cp -v "$srcfile" "$destfile"
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copied=$((copied + 1))
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fi
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done < <(find "$DEST" -type f -name "$filename" 2>/dev/null)
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done
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echo "Copied ${copied} newer image(s) from ${SRC} into ${DEST}"
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