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-rw-r--r--libpod/image/df.go126
1 files changed, 0 insertions, 126 deletions
diff --git a/libpod/image/df.go b/libpod/image/df.go
deleted file mode 100644
index 231d28df4..000000000
--- a/libpod/image/df.go
+++ /dev/null
@@ -1,126 +0,0 @@
-package image
-
-import (
- "context"
- "time"
-
- "github.com/containers/image/v5/docker/reference"
-)
-
-// DiskUsageStat gives disk-usage statistics for a specific image.
-type DiskUsageStat struct {
- // ID of the image.
- ID string
- // Repository of the first recorded name of the image.
- Repository string
- // Tag of the first recorded name of the image.
- Tag string
- // Created is the creation time of the image.
- Created time.Time
- // SharedSize is the amount of space shared with another image.
- SharedSize uint64
- // UniqueSize is the amount of space used only by this image.
- UniqueSize uint64
- // Size is the total size of the image (i.e., the sum of the shared and
- // unique size).
- Size uint64
- // Number of containers using the image.
- Containers int
-}
-
-// DiskUsage returns disk-usage statistics for the specified slice of images.
-func (ir *Runtime) DiskUsage(ctx context.Context, images []*Image) ([]DiskUsageStat, error) {
- stats := make([]DiskUsageStat, len(images))
-
- // Build a layerTree to quickly compute (and cache!) parent/child
- // relations.
- tree, err := ir.layerTree()
- if err != nil {
- return nil, err
- }
-
- // Calculate the stats for each image.
- for i, img := range images {
- stat, err := diskUsageForImage(ctx, img, tree)
- if err != nil {
- return nil, err
- }
- stats[i] = *stat
- }
-
- return stats, nil
-}
-
-// diskUsageForImage returns the disk-usage statistics for the specified image.
-func diskUsageForImage(ctx context.Context, image *Image, tree *layerTree) (*DiskUsageStat, error) {
- stat := DiskUsageStat{
- ID: image.ID(),
- Created: image.Created(),
- }
-
- // Repository and tag.
- var name, repository, tag string
- for _, n := range image.Names() {
- if len(n) > 0 {
- name = n
- break
- }
- }
- if len(name) > 0 {
- named, err := reference.ParseNormalizedNamed(name)
- if err != nil {
- return nil, err
- }
- repository = named.Name()
- if tagged, isTagged := named.(reference.NamedTagged); isTagged {
- tag = tagged.Tag()
- }
- } else {
- repository = "<none>"
- tag = "<none>"
- }
- stat.Repository = repository
- stat.Tag = tag
-
- // Shared, unique and total size.
- parent, err := tree.parent(ctx, image)
- if err != nil {
- return nil, err
- }
- childIDs, err := tree.children(ctx, image, false)
- if err != nil {
- return nil, err
- }
- // Optimistically set unique size to the full size of the image.
- size, err := image.Size(ctx)
- if err != nil {
- return nil, err
- }
- stat.UniqueSize = *size
-
- if len(childIDs) > 0 {
- // If we have children, we share everything.
- stat.SharedSize = stat.UniqueSize
- stat.UniqueSize = 0
- } else if parent != nil {
- // If we have no children but a parent, remove the parent
- // (shared) size from the unique one.
- size, err := parent.Size(ctx)
- if err != nil {
- return nil, err
- }
- stat.UniqueSize -= *size
- stat.SharedSize = *size
- }
-
- stat.Size = stat.SharedSize + stat.UniqueSize
-
- // Number of containers using the image.
- containers, err := image.Containers()
- if err != nil {
- return nil, err
- }
- stat.Containers = len(containers)
-
- return &stat, nil
-}