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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2019-01-11 05:39:12 -0800
committerGitHub <noreply@github.com>2019-01-11 05:39:12 -0800
commitb3eb23d671425775673f86bd02b9c89ef781f590 (patch)
tree5f06e4e289f16d9164d692590a3fe6541b5384cf /vendor/github.com/Microsoft/hcsshim/internal/mergemaps
parent26f2b7debde313af4a5ae39727c66a3f8fd59be4 (diff)
parentbd40dcfc2bc7c9014ea1f33482fb63aacbcdfe87 (diff)
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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.go52
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
+}