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*: xattr can Update()

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This is a gnarly patchset that has been mashed together.
It uncovered that some aspects of Check were never really working
correctly for `xattr` keywords, but also the `Update()` had been left
undone for a while.

This includes some API changes around the `Keyword` and `KeyVal` types.

Also I would like to update the signature for the `UpdateKeywordFunc` to
just accept a `KeyVal` as an argugment, rather than a keyword AND the
value. with this context there would be no need to guess on the value of
what's passed to the xattr update function of whether it needs or
already is base64 encoded.

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
Vincent Batts 2017-06-15 14:54:58 -04:00
parent fb4ec19981
commit ed464af779
Signed by: vbatts
GPG key ID: 10937E57733F1362
19 changed files with 398 additions and 258 deletions
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23
update.go
View file

@ -3,6 +3,8 @@ package mtree
import (
"os"
"sort"
"github.com/Sirupsen/logrus"
)
// DefaultUpdateKeywords is the default set of keywords that can take updates to the files on disk
@ -11,7 +13,7 @@ var DefaultUpdateKeywords = []Keyword{
"gid",
"mode",
"time",
// TODO xattr
"xattr",
}
// Update attempts to set the attributes of root directory path, given the values of `keywords` in dh DirectoryHierarchy.
@ -36,7 +38,7 @@ func Update(root string, dh *DirectoryHierarchy, keywords []Keyword, fs FsEval)
} else if e.Name == "/unset" {
creator.curSet = nil
}
Debugf("%#v", e)
logrus.Debugf("%#v", e)
continue
case RelativeType, FullType:
e.Set = creator.curSet
@ -46,20 +48,21 @@ func Update(root string, dh *DirectoryHierarchy, keywords []Keyword, fs FsEval)
}
// filter the keywords to update on the file, from the keywords available for this entry:
var toCheck []KeyVal
toCheck = keyvalSelector(e.AllKeys(), keywords)
Debugf("toCheck(%q): %v", pathname, toCheck)
var kvToUpdate []KeyVal
kvToUpdate = keyvalSelector(e.AllKeys(), keywords)
logrus.Debugf("kvToUpdate(%q): %#v", pathname, kvToUpdate)
for _, kv := range toCheck {
if !InKeywordSlice(kv.Keyword(), keywords) {
for _, kv := range kvToUpdate {
if !InKeywordSlice(kv.Keyword().Prefix(), keywordPrefixes(keywords)) {
continue
}
ukFunc, ok := UpdateKeywordFuncs[kv.Keyword()]
logrus.Debugf("finding function for %q (%q)", kv.Keyword(), kv.Keyword().Prefix())
ukFunc, ok := UpdateKeywordFuncs[kv.Keyword().Prefix()]
if !ok {
Debugf("no UpdateKeywordFunc for %s; skipping", kv.Keyword())
logrus.Debugf("no UpdateKeywordFunc for %s; skipping", kv.Keyword())
continue
}
if _, err := ukFunc(pathname, kv.Value()); err != nil {
if _, err := ukFunc(kv.Keyword(), pathname, kv.Value()); err != nil {
results = append(results, InodeDelta{
diff: ErrorDifference,
path: pathname,