#!/bin/bash
############################################################################
# bfs #
# Copyright (C) 2015-2017 Tavian Barnes <tavianator@tavianator.com> #
# #
# Permission to use, copy, modify, and/or distribute this software for any #
# purpose with or without fee is hereby granted. #
# #
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES #
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF #
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR #
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES #
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN #
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF #
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. #
############################################################################
set -o physical
umask 022
export LC_ALL=C
export TZ=UTC
# The temporary directory that will hold our test data
TMP="$(mktemp -d "${TMPDIR:-/tmp}"/bfs.XXXXXXXXXX)"
chown "$(id -u)":"$(id -g)" "$TMP"
# Clean up temporary directories on exit
function cleanup() {
rm -rf "$TMP"
}
trap cleanup EXIT
# Install a file, creating any parent directories
function installp() {
local target="${@: -1}"
mkdir -p "${target%/*}"
install "$@"
}
# Like a mythical touch -p
function touchp() {
installp -m644 /dev/null "$1"
}
# Creates a simple file+directory structure for tests
function make_basic() {
touchp "$1/a"
touchp "$1/b"
touchp "$1/c/d"
touchp "$1/e/f"
mkdir -p "$1/g/h"
mkdir -p "$1/i"
touchp "$1/j/foo"
touchp "$1/k/foo/bar"
touchp "$1/l/foo/bar/baz"
echo baz >"$1/l/foo/bar/baz"
}
make_basic "$TMP/basic"
# Creates a file+directory structure with various permissions for tests
function make_perms() {
installp -m444 /dev/null "$1/r"
installp -m222 /dev/null "$1/w"
installp -m644 /dev/null "$1/rw"
installp -m555 /dev/null "$1/rx"
installp -m311 /dev/null "$1/wx"
installp -m755 /dev/null "$1/rwx"
}
make_perms "$TMP/perms"
# Creates a file+directory structure with various symbolic and hard links
function make_links() {
touchp "$1/a"
ln -s a "$1/b"
ln "$1/a" "$1/c"
mkdir -p "$1/d/e/f"
ln -s ../../d "$1/d/e/g"
ln -s d/e "$1/h"
ln -s q "$1/d/e/i"
ln -s b/c "$1/j"
}
make_links "$TMP/links"
# Creates a file+directory structure with varying timestamps