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author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2019-01-11 05:39:12 -0800 |
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committer | GitHub <noreply@github.com> | 2019-01-11 05:39:12 -0800 |
commit | b3eb23d671425775673f86bd02b9c89ef781f590 (patch) | |
tree | 5f06e4e289f16d9164d692590a3fe6541b5384cf /vendor/github.com/Microsoft/hcsshim/internal/mergemaps | |
parent | 26f2b7debde313af4a5ae39727c66a3f8fd59be4 (diff) | |
parent | bd40dcfc2bc7c9014ea1f33482fb63aacbcdfe87 (diff) | |
download | podman-b3eb23d671425775673f86bd02b9c89ef781f590.tar.gz podman-b3eb23d671425775673f86bd02b9c89ef781f590.tar.bz2 podman-b3eb23d671425775673f86bd02b9c89ef781f590.zip |
Merge pull request #2102 from vrothberg/vendor-update
vendor: update everything
Diffstat (limited to 'vendor/github.com/Microsoft/hcsshim/internal/mergemaps')
-rw-r--r-- | vendor/github.com/Microsoft/hcsshim/internal/mergemaps/merge.go | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/vendor/github.com/Microsoft/hcsshim/internal/mergemaps/merge.go b/vendor/github.com/Microsoft/hcsshim/internal/mergemaps/merge.go new file mode 100644 index 000000000..7e95efb30 --- /dev/null +++ b/vendor/github.com/Microsoft/hcsshim/internal/mergemaps/merge.go @@ -0,0 +1,52 @@ +package mergemaps + +import "encoding/json" + +// Merge recursively merges map `fromMap` into map `ToMap`. Any pre-existing values +// in ToMap are overwritten. Values in fromMap are added to ToMap. +// From http://stackoverflow.com/questions/40491438/merging-two-json-strings-in-golang +func Merge(fromMap, ToMap interface{}) interface{} { + switch fromMap := fromMap.(type) { + case map[string]interface{}: + ToMap, ok := ToMap.(map[string]interface{}) + if !ok { + return fromMap + } + for keyToMap, valueToMap := range ToMap { + if valueFromMap, ok := fromMap[keyToMap]; ok { + fromMap[keyToMap] = Merge(valueFromMap, valueToMap) + } else { + fromMap[keyToMap] = valueToMap + } + } + case nil: + // merge(nil, map[string]interface{...}) -> map[string]interface{...} + ToMap, ok := ToMap.(map[string]interface{}) + if ok { + return ToMap + } + } + return fromMap +} + +// MergeJSON merges the contents of a JSON string into an object representation, +// returning a new object suitable for translating to JSON. +func MergeJSON(object interface{}, additionalJSON []byte) (interface{}, error) { + if len(additionalJSON) == 0 { + return object, nil + } + objectJSON, err := json.Marshal(object) + if err != nil { + return nil, err + } + var objectMap, newMap map[string]interface{} + err = json.Unmarshal(objectJSON, &objectMap) + if err != nil { + return nil, err + } + err = json.Unmarshal(additionalJSON, &newMap) + if err != nil { + return nil, err + } + return Merge(newMap, objectMap), nil +} |