renamer

#!/usr/bin/env sh

# Description: Batch rename selection or current directory with qmv or vidir
#
# Notes:
#   - Try to mimic current batch rename functionality but with correct
#     handling of edge cases by qmv or vidir.
#   - Qmv opens with hidden files if no selection is used. Selected
#	  directories are shown.
#   - Vidir don't show directories nor hidden files.
#
# Shell: POSIX compliant
# Author: José Neder

selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection}

if type qmv >/dev/null 2>&1; then
	batchrenamesel="qmv -fdo -da"
	batchrename="qmv -fdo -a"
elif type vidir >/dev/null 2>&1; then
	batchrenamesel="vidir"
	batchrename="vidir"
else
    printf "there is not batchrename program installed."
    exit
fi

if [ -s "$selection" ]; then
    printf "rename selection? "
    read -r resp
fi

if [ "$resp" = "y" ]; then
    # -o flag is necessary for interactive editors
    xargs -o -0 $batchrenamesel < "$selection"

    # Clear selection
    if [ -p "$NNN_PIPE" ]; then
        printf "-" > "$NNN_PIPE"
    fi
elif [ ! "$(LC_ALL=C ls -a)" = ".
.." ]; then
	# On older systems that don't have ls -A
    $batchrename
fi