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package compat
import (
"bytes"
"fmt"
"net/http"
"github.com/containers/podman/v3/libpod"
"github.com/containers/podman/v3/pkg/api/handlers"
"github.com/containers/podman/v3/pkg/api/handlers/utils"
"github.com/docker/docker/api/types"
"github.com/gorilla/schema"
"github.com/pkg/errors"
)
func PruneImages(w http.ResponseWriter, r *http.Request) {
var (
filters []string
)
decoder := r.Context().Value("decoder").(*schema.Decoder)
runtime := r.Context().Value("runtime").(*libpod.Runtime)
query := struct {
All bool
Filters map[string][]string `schema:"filters"`
}{
// This is where you can override the golang default value for one of fields
}
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
utils.Error(w, "Something went wrong.", http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
return
}
for k, v := range query.Filters {
for _, val := range v {
filters = append(filters, fmt.Sprintf("%s=%s", k, val))
}
}
imagePruneReports, err := runtime.ImageRuntime().PruneImages(r.Context(), query.All, filters)
if err != nil {
utils.InternalServerError(w, err)
return
}
idr := make([]types.ImageDeleteResponseItem, len(imagePruneReports))
var reclaimedSpace uint64
var errorMsg bytes.Buffer
for _, p := range imagePruneReports {
if p.Err != nil {
// Docker stops on first error vs. libpod which keeps going. Given API constraints, concatenate all errors
// and return that string.
errorMsg.WriteString(p.Err.Error())
errorMsg.WriteString("; ")
continue
}
idr = append(idr, types.ImageDeleteResponseItem{
Deleted: p.Id,
})
reclaimedSpace = reclaimedSpace + p.Size
}
if errorMsg.Len() > 0 {
utils.InternalServerError(w, errors.New(errorMsg.String()))
return
}
payload := handlers.ImagesPruneReport{
ImagesPruneReport: types.ImagesPruneReport{
ImagesDeleted: idr,
SpaceReclaimed: reclaimedSpace,
},
}
utils.WriteResponse(w, http.StatusOK, payload)
}
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