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tar: remove "time" keyword before tree creation 

Instead of checking each time during keyword evaluation if
the keyword is "time", just remove it from the start and
replace it with "tar_time" (if necessary).

Signed-off-by: Stephen Chung <schung@redhat.com>
This commit is contained in:
Stephen Chung 2016-08-09 13:30:31 -04:00
parent 3d6b74d6f7
commit 00a4a2e674
1 changed files with 14 additions and 6 deletions
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20
tar.go
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@ -47,6 +47,20 @@ type tarStream struct {
}
func (ts *tarStream) readHeaders() {
// remove "time" keyword
notimekws := []string{}
for _, kw := range ts.keywords {
if !inSlice(kw, notimekws) {
if kw != "time" {
notimekws = append(notimekws, kw)
} else {
if !inSlice("tar_time", ts.keywords) {
notimekws = append(notimekws, "tar_time")
}
}
}
}
ts.keywords = notimekws
// We have to start with the directory we're in, and anything beyond these
// items is determined at the time a tar is extracted.
ts.root = &Entry{
@ -106,9 +120,6 @@ func (ts *tarStream) readHeaders() {
// now collect keywords on the file
for _, keyword := range ts.keywords {
if keyword == "time" {
keyword = "tar_time"
}
if keyFunc, ok := KeywordFuncs[keyword]; ok {
// We can't extract directories on to disk, so "size" keyword
// is irrelevant for now
@ -142,9 +153,6 @@ func (ts *tarStream) readHeaders() {
Type: SpecialType,
}
for _, setKW := range SetKeywords {
if setKW == "time" {
setKW = "tar_time"
}
if keyFunc, ok := KeywordFuncs[setKW]; ok {
val, err := keyFunc(hdr.Name, hdr.FileInfo(), tmpFile)
if err != nil {