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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/nodemon/lib/utils/merge.js
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Diffstat (limited to 'node_modules/nodemon/lib/utils/merge.js')
-rw-r--r--node_modules/nodemon/lib/utils/merge.js47
1 files changed, 47 insertions, 0 deletions
diff --git a/node_modules/nodemon/lib/utils/merge.js b/node_modules/nodemon/lib/utils/merge.js
new file mode 100644
index 0000000..1f3440b
--- /dev/null
+++ b/node_modules/nodemon/lib/utils/merge.js
@@ -0,0 +1,47 @@
+var clone = require('./clone');
+
+module.exports = merge;
+
+function typesMatch(a, b) {
+ return (typeof a === typeof b) && (Array.isArray(a) === Array.isArray(b));
+}
+
+/**
+ * A deep merge of the source based on the target.
+ * @param {Object} source [description]
+ * @param {Object} target [description]
+ * @return {Object} [description]
+ */
+function merge(source, target, result) {
+ if (result === undefined) {
+ result = clone(source);
+ }
+
+ // merge missing values from the target to the source
+ Object.getOwnPropertyNames(target).forEach(function (key) {
+ if (source[key] === undefined) {
+ result[key] = target[key];
+ }
+ });
+
+ Object.getOwnPropertyNames(source).forEach(function (key) {
+ var value = source[key];
+
+ if (target[key] && typesMatch(value, target[key])) {
+ // merge empty values
+ if (value === '') {
+ result[key] = target[key];
+ }
+
+ if (Array.isArray(value)) {
+ if (value.length === 0 && target[key].length) {
+ result[key] = target[key].slice(0);
+ }
+ } else if (typeof value === 'object') {
+ result[key] = merge(value, target[key]);
+ }
+ }
+ });
+
+ return result;
+} \ No newline at end of file