this fixes a mount-related functionality (finding the volume label) in new
versions of util-linux, that since v2.30 does not list anymore volume labels
with its mount -l command. Since findmnt needs sudo to list labels, this also
introduces the need for sudo in more commands: is_valid_tomb(), list, index and
search. The issue was examined in PR #283 and this is a rebase of it.
As debated in issue #282 Zsh introduced a bug in v5.3.1 which briefly affected
our mechanism for closing tombs. The bug is fixed, but while investigating the
issue @aude realised there can be a better way to apply this regex for the
detection of mounted volumes on distro dependent /run/media/$USER paths.
This change drops usage of the regex optional module in Zsh to use the built-in
=~ comparison and improves the match using round parenthesis. It may fix the
close command on some distributions.
this small bug caused rewriting the $i variable (often used as
iterator in loops) whenever a log message was produced. Fix also
includes an acceleration of log printing by substituting seq with
native zsh notation.
the shellcheck developer unilaterally decided removal of zsh support
https://github.com/koalaman/shellcheck/issues/298 so far ignoring all
requests to add support, so we won't run our shellcheck tests on
travis. using Devuan Jessie's 0.3.5 with our ignores still works, so
will keep testing it locally.
also removed pre-open and post-close as they don't really make sense
since all hooks are contained inside the Tomb. The post-close may be
implemented using a temp file, if a use case turns up for it.
Renamed file from "post-hooks" to more appropriate "exec-hooks".
Implemented and documented a more consistent call system made of 4
different stages: pre-open, post-open, pre-close, post-close.
Addresses issue #265
