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#!/hint/bash
# Copyright © Tavian Barnes <tavianator@tavianator.com>
# SPDX-License-Identifier: 0BSD
## Standard directory trees for tests
# Creates a simple file+directory structure for tests
make_basic() {
"$XTOUCH" -p "$1"/{a,b,c/d,e/f,g/h/,i/}
"$XTOUCH" -p "$1"/{j/foo,k/foo/bar,l/foo/bar/baz}
echo baz >"$1/l/foo/bar/baz"
}
# Creates a file+directory structure with various permissions for tests
make_perms() {
"$XTOUCH" -p -M000 "$1/f---"
"$XTOUCH" -p -M444 "$1/fr--"
"$XTOUCH" -p -M222 "$1/f-w-"
"$XTOUCH" -p -M644 "$1/frw-"
"$XTOUCH" -p -M311 "$1/f-wx"
"$XTOUCH" -p -M555 "$1/fr-x" "$1/dr-x/"
"$XTOUCH" -p -M755 "$1/frwx" "$1/drwx/"
}
# Creates a file+directory structure with various symbolic and hard links
make_links() {
"$XTOUCH" -p "$1/file"
ln -s file "$1/symlink"
ln "$1/file" "$1/hardlink"
ln -s nowhere "$1/broken"
ln -s symlink/file "$1/notdir"
"$XTOUCH" -p "$1/deeply/nested"/{dir/,file}
ln -s file "$1/deeply/nested/link"
ln -s nowhere "$1/deeply/nested/broken"
ln -s deeply/nested "$1/skip"
}
# Creates a file+directory structure with symbolic link loops
make_loops() {
"$XTOUCH" -p "$1/file"
ln -s file "$1/symlink"
ln -s nowhere "$1/broken"
ln -s symlink/file "$1/notdir"
ln -s loop "$1/loop"
mkdir -p "$1/deeply/nested/dir"
ln -s ../../deeply "$1/deeply/nested/loop"
ln -s deeply/nested/loop/nested "$1/skip"
}
# Creates a file+directory structure with inaccessible files
make_inaccessible() {
"$XTOUCH" -p -M000 "$1/file" "$1/dir/"
ln -s dir/file "$1/link"
}
# Creates a file+directory structure with varying timestamps
make_times() {
"$XTOUCH" -p -t "1991-12-14 00:00" "$1/a"
"$XTOUCH" -p -t "1991-12-14 00:01" "$1/b"
"$XTOUCH" -p -t "1991-12-14 00:02" "$1/c"
ln -s a "$1/l"
"$XTOUCH" -p -h -t "1991-12-14 00:03" "$1/l"
"$XTOUCH" -p -t "1991-12-14 00:04" "$1"
}
# Creates a file+directory structure with various weird file/directory names
make_weirdnames() {
"$XTOUCH" -p "$1/-/a"
"$XTOUCH" -p "$1/(/b"
"$XTOUCH" -p "$1/(-/c"
"$XTOUCH" -p "$1/!/d"
"$XTOUCH" -p "$1/!-/e"
"$XTOUCH" -p "$1/,/f"
"$XTOUCH" -p "$1/)/g"
"$XTOUCH" -p "$1/.../h"
"$XTOUCH" -p "$1/\\/i"
"$XTOUCH" -p "$1/ /j"
"$XTOUCH" -p "$1/[/k"
"$XTOUCH" -p "$1/{/l"
"$XTOUCH" -p "$1/*/m"
"$XTOUCH" -p "$1/"$'\n/n'
}
# Creates a very deep directory structure for testing PATH_MAX handling
make_deep() {
mkdir -p "$1"
# $name will be 255 characters, aka _XOPEN_NAME_MAX
local name="0123456789ABCDEF"
name="$name$name$name$name"
name="$name$name$name$name"
name="${name:0:255}"
# 4 * 4 * 256 == 4096 >= PATH_MAX
local path="$name/$name/$name/$name"
path="$path/$path/$path/$path"
"$XTOUCH" -p "$1"/{{0..9},A,B,C,D,E,F}/"$path/$name"
}
# Creates a directory structure with many different types, and therefore colors
make_rainbow() {
"$XTOUCH" -p "$1/file.txt"
"$XTOUCH" -p "$1/file.dat"
"$XTOUCH" -p "$1/lower".{gz,tar,tar.gz}
"$XTOUCH" -p "$1/upper".{GZ,TAR,TAR.GZ}
"$XTOUCH" -p "$1/lu.tar.GZ" "$1/ul.TAR.gz"
ln -s file.txt "$1/link.txt"
"$XTOUCH" -p "$1/mh1"
ln "$1/mh1" "$1/mh2"
mkfifo "$1/pipe"
# TODO: block
ln -s /dev/null "$1/chardev_link"
ln -s nowhere "$1/broken"
"$MKSOCK" "$1/socket"
"$XTOUCH" -p "$1"/s{u,g,ug}id
chmod 06644 "$1"/sugid
chmod 04644 "$1"/suid
chmod 02644 "$1"/sgid
mkdir "$1/ow" "$1"/sticky{,_ow}
chmod o+w "$1"/*ow
chmod +t "$1"/sticky*
"$XTOUCH" -p "$1"/exec.sh
chmod +x "$1"/exec.sh
"$XTOUCH" -p "$1/"$'\e[1m/\e[0m'
}
# Create all standard directory trees
make_stddirs() {
TMP=$(mktemp -d "${TMPDIR:-/tmp}"/bfs.XXXXXXXXXX)
if ((CLEAN)); then
defer clean_stddirs
else
printf "Test files saved to ${BLD}%s${RST}\n" "$TMP"
fi
chown "$(id -u):$(id -g)" "$TMP"
make_basic "$TMP/basic"
make_perms "$TMP/perms"
make_links "$TMP/links"
make_loops "$TMP/loops"
make_inaccessible "$TMP/inaccessible"
make_times "$TMP/times"
make_weirdnames "$TMP/weirdnames"
make_deep "$TMP/deep"
make_rainbow "$TMP/rainbow"
}
# Clean up temporary directories on exit
clean_stddirs() {
# Don't force rm to deal with long paths
for dir in "$TMP"/deep/*/*; do
if [ -d "$dir" ]; then
(cd "$dir" && rm -rf *)
fi
done
rm -rf "$TMP"
}
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