builder: fix bugs when pruning buildkit cache with filters

Only the filters the user specified should be added as cache filters to buildkit.
Make an AND operation of the provided filters.
ID filter now does prefix-matching.

Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit b6137bebb83e886aef906b7ff277778b69616991)
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: 52a3c39506b883f713694ce39d1a4fd9f5638800
Component: engine
This commit is contained in:
Tibor Vass
2018-10-16 18:51:25 +00:00
parent 00d50de788
commit 0c72992e43

View File

@ -532,20 +532,26 @@ func toBuildkitPruneInfo(opts types.BuildCachePruneOptions) (client.PruneInfo, e
bkFilter := make([]string, 0, opts.Filters.Len())
for cacheField := range cacheFields {
values := opts.Filters.Get(cacheField)
switch len(values) {
case 0:
bkFilter = append(bkFilter, cacheField)
case 1:
bkFilter = append(bkFilter, cacheField+"=="+values[0])
default:
return client.PruneInfo{}, errMultipleFilterValues
if opts.Filters.Include(cacheField) {
values := opts.Filters.Get(cacheField)
switch len(values) {
case 0:
bkFilter = append(bkFilter, cacheField)
case 1:
if cacheField == "id" {
bkFilter = append(bkFilter, cacheField+"~="+values[0])
} else {
bkFilter = append(bkFilter, cacheField+"=="+values[0])
}
default:
return client.PruneInfo{}, errMultipleFilterValues
}
}
}
return client.PruneInfo{
All: opts.All,
KeepDuration: unusedFor,
KeepBytes: opts.KeepStorage,
Filter: bkFilter,
Filter: []string{strings.Join(bkFilter, ",")},
}, nil
}