diff options
| -rwxr-xr-x | examples/rifle_sxiv.sh | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/examples/rifle_sxiv.sh b/examples/rifle_sxiv.sh index 60cc8d82..b5e2a095 100755 --- a/examples/rifle_sxiv.sh +++ b/examples/rifle_sxiv.sh @@ -1,30 +1,44 @@ #!/bin/sh # Compatible with ranger 1.6.* # -# This script searches image files in a directory, opens them all with sxiv -# and sets the first argument to the first image displayed by sxiv. +# This script searches image files in a directory, opens them all with sxiv and +# sets the first argument to the first image displayed by sxiv. # # This is supposed to be used in rifle.conf as a workaround for the fact that -# sxiv takes no file name arguments for the first image, just the number. -# Copy this file somewhere into your $PATH and add this at the top of rifle.conf: +# sxiv takes no file name arguments for the first image, just the number. Copy +# this file somewhere into your $PATH and add this at the top of rifle.conf: # # mime ^image, has sxiv, X, flag f = path/to/this/script -- "$@" # +# Implementation notes: this script is quite slow because of POSIX limitations +# and portability concerns. First calling the shell function 'abspath' is +# quicker than calling 'realpath' because it would fork a whole process, which +# is slow. Second, we need to append a file list to sxiv, which can only be done +# properly in two ways: arrays (which are not POSIX) or \0 sperated +# strings. Unfortunately, assigning \0 to a variable is not POSIX either (will +# not work in dash and others), so we cannot store the result of listfiles to a +# variable. + +if [ $# -eq 0 ]; then + echo "Usage: ${0##*/} PICTURES" + exit +fi [ "$1" == '--' ] && shift -function abspath { +abspath () { case "$1" in /*) printf "%s\n" "$1";; *) printf "%s\n" "$PWD/$1";; esac } -function listfiles { + +listfiles () { find -L "$(dirname "$target")" -maxdepth 1 -type f -iregex \ '.*\(jpe?g\|bmp\|png\|gif\)$' -print0 | sort -z } -target="$(abspath $1)" +target="$(abspath "$1")" count="$(listfiles | grep -m 1 -Zznx "$target" | cut -d: -f1)" if [ -n "$count" ]; then |