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Use table lookup for checking addition files

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This commit is contained in:
Ettore Di Giacinto 2021-10-24 21:47:11 +02:00
parent bdcf26401c
commit 1b1ab6225c
1 changed files with 34 additions and 42 deletions
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36
pkg/api/core/image/extract.go
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@ -46,42 +46,40 @@ func ExtractDeltaFiles(
includeRegexp := compileRegexes(includes)
excludeRegexp := compileRegexes(excludes)
additions := map[string]interface{}{}
for _, a := range d.Additions {
additions[a.Name] = nil
}
return func(h *tar.Header) (bool, error) {
fileName := filepath.Join(string(os.PathSeparator), h.Name)
ctx.Debug("Includes", includes)
ctx.Debug("Excludes", excludes)
ctx.Debug("Additions", d.Additions)
_, exists := additions[h.Name]
if !exists {
return false, nil
}
switch {
case len(includes) == 0 && len(excludes) != 0:
for _, a := range d.Additions {
if h.Name == a.Name {
for _, i := range excludeRegexp {
if i.MatchString(filepath.Join(string(os.PathSeparator), a.Name)) &&
fileName == filepath.Join(string(os.PathSeparator), a.Name) {
if i.MatchString(filepath.Join(string(os.PathSeparator), h.Name)) &&
fileName == filepath.Join(string(os.PathSeparator), h.Name) {
return false, nil
}
}
ctx.Debug("Adding name", fileName)
return true, nil
}
}
return false, nil
case len(includes) > 0 && len(excludes) == 0:
for _, a := range d.Additions {
for _, i := range includeRegexp {
if i.MatchString(filepath.Join(string(os.PathSeparator), a.Name)) && fileName == filepath.Join(string(os.PathSeparator), a.Name) {
if i.MatchString(filepath.Join(string(os.PathSeparator), h.Name)) && fileName == filepath.Join(string(os.PathSeparator), h.Name) {
ctx.Debug("Adding name", fileName)
return true, nil
}
}
}
return false, nil
case len(includes) != 0 && len(excludes) != 0:
for _, a := range d.Additions {
for _, i := range includeRegexp {
if i.MatchString(filepath.Join(string(os.PathSeparator), a.Name)) && fileName == filepath.Join(string(os.PathSeparator), a.Name) {
if i.MatchString(filepath.Join(string(os.PathSeparator), h.Name)) && fileName == filepath.Join(string(os.PathSeparator), h.Name) {
for _, e := range excludeRegexp {
if e.MatchString(fileName) {
return false, nil
@ -92,18 +90,12 @@ func ExtractDeltaFiles(
return true, nil
}
}
}
return false, nil
default:
for _, a := range d.Additions {
if fileName == filepath.Join(string(os.PathSeparator), a.Name) {
ctx.Debug("Adding name", fileName)
return true, nil
}
}
return false, nil
}
}
}