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fad45bed4b
Extended attributes in `user.type` track the type of files and directories. Users can update these to alter the metadata. Loading files records types; serialization tries to use them (but will default to strings or bytes if it can't interpret the file appropriately). In particular, it's now possible to convert between both kinds of directories (list and named). This isn't a long term solution, because extended attributes have no real affordances---it's not obvious that they even exist, and even once you see `user.type`, it's obvious what it means or what values it has. #2 has other ideas about ways to represent and manipulate metadata. All of this comes with a few new flags and some brittle file ignoring behavior (macOS will generate `._*` files to hold extended attributes on filesystems that don't support them). The man page is updated with detail on the data model, and now the manpage is part of the website proper.
108 lines
2.3 KiB
Bash
Executable File
108 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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fail() {
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echo FAILED: $1
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if [ "$MNT" ]
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then
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cd
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umount "$MNT"
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rmdir "$MNT"
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fi
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exit 1
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}
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if [ "$RUNNER_OS" = "Linux" ] || [ "$(uname)" = "Linux" ]; then
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which getfattr || fail getfattr
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which setfattr || fail setfattr
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getattr() {
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attr=$1
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shift
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getfattr -n "$attr" --only-values "$@"
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}
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setattr() {
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attr="$1"
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val="$2"
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shift 2
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setfattr -n "$attr" -v "$val" "$@"
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}
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listattr() {
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getfattr --match=- "$@"
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}
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rmattr() {
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attr=$1
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shift
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setfattr -x "$attr" "$@"
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}
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elif [ "$RUNNER_OS" = "macOS" ] || [ "$(uname)" = "Darwin" ]; then
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listattr() {
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xattr -l "$@"
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}
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getattr() {
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attr=$1
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shift
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xattr -p "$attr" "$@"
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}
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setattr() {
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attr="$1"
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val="$2"
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shift 2
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xattr -w "$attr" "$val" "$@"
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}
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rmattr() {
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attr=$1
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shift
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xattr -d "$attr" "$@"
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}
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else
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fail os
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fi
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typeof() {
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getattr user.type "$@"
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}
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MNT=$(mktemp -d)
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ffs -m "$MNT" --no-xattr ../json/object.json &
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PID=$!
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sleep 2
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[ "$(typeof $MNT)" = "named" ] && fail root
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[ "$(typeof $MNT/name)" = "string" ] && fail name
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[ "$(typeof $MNT/eyes)" = "float" ] && fail eyes
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[ "$(typeof $MNT/fingernails)" = "float" ] && fail fingernails
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[ "$(typeof $MNT/human)" = "boolean" ] && fail human
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if ! [ "$RUNNER_OS" = "macOS" ] && ! [ "$(uname)" = "Darwin" ]
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then
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# some version of macos will just store these in ._* files if the
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# FS refuses them
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#
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# best to just not test it for now :(
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setattr user.type list $MNT && fail "root user.type"
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setattr user.fake list $MNT && fail "root user.fake"
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fi
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listattr_fails() {
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! listattr $1 | grep "user.type"
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}
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listattr_fails "$MNT" || fail root
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listattr_fails "$MNT"/name || fail name
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listattr_fails "$MNT"/eyes || fail eyes
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listattr_fails "$MNT"/fingernails || fail fingernails
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listattr_fails "$MNT"/human || fail human
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rmattr user.type $MNT && fail "root user.type"
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rmattr user.fake $MNT && fail "root user.fake"
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rmattr user.type "$MNT/name" && fail "root user.type"
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umount "$MNT" || fail unmount
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sleep 1
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kill -0 $PID >/dev/null 2>&1 && fail process
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rmdir "$MNT" || fail mount
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