some_upd

home-manager/modules/zsh/move_avatar.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PICS="$HOME/Pictures"
+AVATAR="$PICS/avatar.png"
+BCKP="$PICS/.bckp"
+
+NO_BCKP=0
+DEL_SRC=0
+
+while getopts ":nr" opt; do
+    case "$opt" in
+        n) NO_BCKP=1 ;;
+        r) DEL_SRC=1 ;;
+        *) echo "Usage: $0 [-n] [-r] <file.png>" >&2; exit 2 ;;
+    esac
+done
+shift $((OPTIND-1))
+
+src=${1:-}
+if [ -z "$src" ]; then
+    echo "Usage: $0 [-n] [-r] <file.png>" >&2
+    exit 2
+fi
+if [ ! -f "$src" ]; then
+    echo "Error: '$src' not found" >&2
+    exit 3
+fi
+
+orig_src="$src"
+
+if command -v magick >/dev/null 2>&1; then
+    IM_CMD="magick"
+else
+    echo "Error: ImageMagick 'convert' not found" >&2
+    exit 5
+fi
+
+tmp=$(mktemp --suffix=.png) || { echo "Error: mktemp failed" >&2; exit 6; }
+
+if ! $IM_CMD -- "$src" "$tmp" >/dev/null 2>&1; then
+    echo "Error: ImageMagick conversion failed" >&2
+    rm -f -- "$tmp"
+    exit 7
+fi
+
+src="$tmp"
+case "${src,,}" in
+    *.png) ;;
+    *) echo "Error: only .png files are accepted" >&2; exit 4 ;;
+esac
+
+if [ "$NO_BCKP" -eq 0 ] && [ -f "$AVATAR" ]; then
+    mkdir -p "$BCKP"
+    ts=$(date +%Y%m%d_%H%M%S)
+    mv -f -- "$AVATAR" "$BCKP/avatar${ts}.png"
+fi
+
+cp -f -- "$src" "$AVATAR"
+
+if [ "$DEL_SRC" -eq 1 ]; then
+    rm -f -- "$orig_src"
+fi