remote-client support for images

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/cmd/podman/imagefilters/filters.go b/cmd/podman/imagefilters/filters.go
new file mode 100644
index 000000000..366510202
--- /dev/null
+++ b/cmd/podman/imagefilters/filters.go
@@ -0,0 +1,84 @@
+package imagefilters
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"github.com/containers/libpod/libpod/adapter"
+	"github.com/containers/libpod/pkg/inspect"
+)
+
+// ResultFilter is a mock function for image filtering
+type ResultFilter func(*adapter.ContainerImage) bool
+
+// Filter is a function to determine whether an image is included in
+// command output. Images to be outputted are tested using the function. A true
+// return will include the image, a false return will exclude it.
+type Filter func(*adapter.ContainerImage, *inspect.ImageData) bool
+
+// CreatedBeforeFilter allows you to filter on images created before
+// the given time.Time
+func CreatedBeforeFilter(createTime time.Time) ResultFilter {
+	return func(i *adapter.ContainerImage) bool {
+		return i.Created().Before(createTime)
+	}
+}
+
+// CreatedAfterFilter allows you to filter on images created after
+// the given time.Time
+func CreatedAfterFilter(createTime time.Time) ResultFilter {
+	return func(i *adapter.ContainerImage) bool {
+		return i.Created().After(createTime)
+	}
+}
+
+// DanglingFilter allows you to filter images for dangling images
+func DanglingFilter() ResultFilter {
+	return func(i *adapter.ContainerImage) bool {
+		return i.Dangling()
+	}
+}
+
+// LabelFilter allows you to filter by images labels key and/or value
+func LabelFilter(ctx context.Context, labelfilter string) ResultFilter {
+	// We need to handle both label=key and label=key=value
+	return func(i *adapter.ContainerImage) bool {
+		var value string
+		splitFilter := strings.Split(labelfilter, "=")
+		key := splitFilter[0]
+		if len(splitFilter) > 1 {
+			value = splitFilter[1]
+		}
+		labels, err := i.Labels(ctx)
+		if err != nil {
+			return false
+		}
+		if len(strings.TrimSpace(labels[key])) > 0 && len(strings.TrimSpace(value)) == 0 {
+			return true
+		}
+		return labels[key] == value
+	}
+}
+
+// OutputImageFilter allows you to filter by an a specific image name
+func OutputImageFilter(userImage *adapter.ContainerImage) ResultFilter {
+	return func(i *adapter.ContainerImage) bool {
+		return userImage.ID() == i.ID()
+	}
+}
+
+// FilterImages filters images using a set of predefined filter funcs
+func FilterImages(images []*adapter.ContainerImage, filters []ResultFilter) []*adapter.ContainerImage {
+	var filteredImages []*adapter.ContainerImage
+	for _, image := range images {
+		include := true
+		for _, filter := range filters {
+			include = include && filter(image)
+		}
+		if include {
+			filteredImages = append(filteredImages, image)
+		}
+	}
+	return filteredImages
+}