feat: support for skipping issues created before a given timestamp

Author: denschub

README.md

@@ -34,6 +34,10 @@ The file can be empty, or it can override any of these default settings:
 # Number of days of inactivity before a closed issue or pull request is locked
 daysUntilLock: 365
 
+# Skip issues and pull requests created before a given timestamp. Timestamp must
+# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable.
+skipCreatedBefore: false
+
 # Issues and pull requests with these labels will not be locked. Set to `[]` to disable
 exemptLabels: []
 

assets/app-description.md

@@ -18,6 +18,10 @@ Create `.github/lock.yml` in the default branch to enable the app. The file can
 # Number of days of inactivity before a closed issue or pull request is locked
 daysUntilLock: 365
 
+# Skip issues and pull requests created before a given timestamp. Timestamp must
+# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable.
+skipCreatedBefore: false
+
 # Issues and pull requests with these labels will not be locked. Set to `[]` to disable
 exemptLabels: []
 

src/lock.js

@@ -62,6 +62,7 @@ module.exports = class Lock {
     const {owner, repo} = this.context.repo();
     const daysUntilLock = this.getConfigValue(type, 'daysUntilLock');
     const exemptLabels = this.getConfigValue(type, 'exemptLabels');
+    const skipCreatedBeforeTimestamp = this.getConfigValue(type, 'skipCreatedBefore');
 
     const timestamp = this.getUpdatedTimestamp(daysUntilLock);
 
@@ -78,6 +79,10 @@ module.exports = class Lock {
       query += ' is:pr';
     }
 
+    if (skipCreatedBeforeTimestamp) {
+      query += ` created:>${skipCreatedBeforeTimestamp}`;
+    }
+
     this.log.info({repo: {owner, repo}}, `Searching ${type}`);
     return this.context.github.search.issues({
       q: query,

src/schema.js

@@ -7,6 +7,13 @@ const fields = {
       'Number of days of inactivity before a closed issue or pull request is locked'
     ),
 
+  skipCreatedBefore: Joi.alternatives()
+    .try(Joi.string(), Joi.boolean().only(false))
+    .description(
+      'Skip issues and pull requests created before a given timestamp. Timestamp' +
+      'must follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable.'
+    ),
+
   exemptLabels: Joi.array()
     .single()
     .items(Joi.string())
@@ -31,6 +38,7 @@ const fields = {
 
 const schema = Joi.object().keys({
   daysUntilLock: fields.daysUntilLock.default(365),
+  skipCreatedBefore: fields.skipCreatedBefore.default(false),
   exemptLabels: fields.exemptLabels.default([]),
   lockLabel: fields.lockLabel.default(false),
   lockComment: fields.lockComment.default(