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#!/bin/sh
# Copyright 2007 Jari Aalto;
# Copyright 2019-2022 Bastien Roucariès
# Copyright 2022 Richard Lewis
# Released under GNU GPL v2 or any later version
PATH="$PATH:/usr/share/sensible-utils/bin"
program="$(realpath "$(command -v "$0")")"
Try()
{
$candidate "$@"
ret=$?
[ "$ret" -ne 126 ] && [ "$ret" -ne 127 ] && exit "$ret"
}
TryEnv()
{
# global $candidate
[ -z "$candidate" ] && return
# Prevent recursive loops, where environment variables are set to this script
[ x$(realpath "$(command -v "$candidate" || true)" || true) = x"$program" ] && return
# interpret like environ (7) man page. Do not use eval in order to not leak variables
sh -c "$candidate \"\$@\"" EDITOR "$@"
ret=$?
# Operating system command not found
[ "$ret" -ne 126 ] && [ "$ret" -ne 127 ] && exit "$ret"
}
# work around for #991982
nano ()
{
if [ -z "$TERM" ]; then
return 126
else
command nano "$@"
fi
}
for candidate in "$VISUAL" "$EDITOR" "$SENSIBLE_EDITOR" "$SELECTED_EDITOR"; do
TryEnv "$@"
done
# fix #987675
if [ -n "$HOME" ]; then
if [ -r ~/.selected_editor ]; then
. ~/.selected_editor 2>/dev/null
elif [ -z "$EDITOR" ] && [ -z "$SELECTED_EDITOR" ] && [ -t 0 ]; then
select-editor && . ~/.selected_editor 2>/dev/null
fi
fi
for candidate in "$EDITOR" "$SELECTED_EDITOR"; do
TryEnv "$@"
done
for candidate in editor nano nano-tiny vi; do
Try "$@"
done
echo "Couldn't find an editor!" 1>&2
echo 'Set the $EDITOR environment variable to your desired editor.' 1>&2
exit 1
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