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util: json: Introduce helper to prepend string into a virJSONValueObject
Libvirt treats the JSON objects as lists thus the values appear in the order they were added. To avoid too much changes introduce a helper which allows to prepend a string which will allow to keep certain outputs in order. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
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@ -2244,6 +2244,7 @@ virJSONValueObjectGetValue;
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virJSONValueObjectHasKey;
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virJSONValueObjectIsNull;
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virJSONValueObjectKeysNumber;
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virJSONValueObjectPrependString;
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virJSONValueObjectRemoveKey;
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virJSONValueObjectStealArray;
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virJSONValueObjectStealObject;
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@ -606,10 +606,11 @@ virJSONValueNewObject(void)
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}
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int
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virJSONValueObjectAppend(virJSONValuePtr object,
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static int
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virJSONValueObjectInsert(virJSONValuePtr object,
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const char *key,
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virJSONValuePtr value)
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virJSONValuePtr value,
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bool prepend)
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{
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virJSONObjectPair pair = { NULL, value };
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int ret = -1;
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@ -628,27 +629,60 @@ virJSONValueObjectAppend(virJSONValuePtr object,
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if (VIR_STRDUP(pair.key, key) < 0)
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return -1;
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if (prepend) {
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ret = VIR_INSERT_ELEMENT(object->data.object.pairs, 0,
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object->data.object.npairs, pair);
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} else {
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ret = VIR_APPEND_ELEMENT(object->data.object.pairs,
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object->data.object.npairs, pair);
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}
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VIR_FREE(pair.key);
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return ret;
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}
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int
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virJSONValueObjectAppend(virJSONValuePtr object,
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const char *key,
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virJSONValuePtr value)
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{
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return virJSONValueObjectInsert(object, key, value, false);
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}
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static int
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virJSONValueObjectInsertString(virJSONValuePtr object,
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const char *key,
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const char *value,
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bool prepend)
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{
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virJSONValuePtr jvalue = virJSONValueNewString(value);
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if (!jvalue)
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return -1;
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if (virJSONValueObjectInsert(object, key, jvalue, prepend) < 0) {
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virJSONValueFree(jvalue);
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return -1;
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}
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return 0;
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}
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int
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virJSONValueObjectAppendString(virJSONValuePtr object,
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const char *key,
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const char *value)
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{
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virJSONValuePtr jvalue = virJSONValueNewString(value);
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if (!jvalue)
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return -1;
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if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
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virJSONValueFree(jvalue);
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return -1;
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return virJSONValueObjectInsertString(object, key, value, false);
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}
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return 0;
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int
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virJSONValueObjectPrependString(virJSONValuePtr object,
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const char *key,
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const char *value)
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{
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return virJSONValueObjectInsertString(object, key, value, true);
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}
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@ -126,6 +126,7 @@ int virJSONValueObjectGetBoolean(virJSONValuePtr object, const char *key, bool *
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int virJSONValueObjectIsNull(virJSONValuePtr object, const char *key);
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int virJSONValueObjectAppendString(virJSONValuePtr object, const char *key, const char *value);
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int virJSONValueObjectPrependString(virJSONValuePtr object, const char *key, const char *value);
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int virJSONValueObjectAppendNumberInt(virJSONValuePtr object, const char *key, int number);
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int virJSONValueObjectAppendNumberUint(virJSONValuePtr object, const char *key, unsigned int number);
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int virJSONValueObjectAppendNumberLong(virJSONValuePtr object, const char *key, long long number);
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