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Use packageImage as builder image fingerprint

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This allows to have an unique identifier for the builder image id against
different depgraphs combinations. The package fingerprint is not enough,
as an atom could have a difference deptree depending on the requires
constraints.

TODO: Don't use the full image name, but only the hash as a salt
(currently the salt contains ALSO a reference of the image-repository,
as such it doesn't allow to port a tree in a different docker registry)
This commit is contained in:
Ettore Di Giacinto
2020-06-23 18:44:29 +02:00
parent ee3b59348e
commit 16e9d7b20c
4 changed files with 25 additions and 10 deletions
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6
pkg/package/package.go
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@@ -105,7 +105,7 @@ type Package interface {
String() string
HumanReadableString() string
HashFingerprint() string
HashFingerprint(string) string
Clone() Package
}
@@ -205,9 +205,9 @@ func (p *DefaultPackage) GetFingerPrint() string {
return fmt.Sprintf("%s-%s-%s", p.Name, p.Category, p.Version)
}
func (p *DefaultPackage) HashFingerprint() string {
func (p *DefaultPackage) HashFingerprint(salt string) string {
h := md5.New()
io.WriteString(h, p.GetFingerPrint())
io.WriteString(h, fmt.Sprintf("%s-%s",p.GetFingerPrint(),salt))
return fmt.Sprintf("%x", h.Sum(nil))
}