/
mounts.go
48 lines (42 loc) · 1.11 KB
/
mounts.go
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package oci
import (
"context"
"path/filepath"
"strings"
"github.com/containerd/containerd/containers"
"github.com/containerd/containerd/oci"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
func withRemovedMount(destination string) oci.SpecOpts {
return func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error {
newMounts := []specs.Mount{}
for _, o := range s.Mounts {
if o.Destination != destination {
newMounts = append(newMounts, o)
}
}
s.Mounts = newMounts
return nil
}
}
func hasPrefix(p, prefixDir string) bool {
prefixDir = filepath.Clean(prefixDir)
if filepath.Base(prefixDir) == string(filepath.Separator) {
return true
}
p = filepath.Clean(p)
return p == prefixDir || strings.HasPrefix(p, prefixDir+string(filepath.Separator))
}
func dedupMounts(mnts []specs.Mount) []specs.Mount {
ret := make([]specs.Mount, 0, len(mnts))
visited := make(map[string]int)
for _, mnt := range mnts {
if j, ok := visited[mnt.Destination]; ok {
ret[j] = mnt
} else {
visited[mnt.Destination] = len(ret)
ret = append(ret, mnt)
}
}
return ret
}