From ace8c2d9ab62922bc899025d12f67e7d51706848 Mon Sep 17 00:00:00 2001
From: Dennis Schubert <mail@dennis-schubert.de>
Date: Thu, 8 Nov 2018 06:37:44 +0100
Subject: [PATCH] feat: support for skipping issues created before a given
 timestamp

---
 README.md                 | 4 ++++
 assets/app-description.md | 4 ++++
 src/lock.js               | 5 +++++
 src/schema.js             | 8 ++++++++
 4 files changed, 21 insertions(+)

diff --git a/README.md b/README.md
index c2e3150..f7f2172 100644
--- a/README.md
+++ b/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: []
 
diff --git a/assets/app-description.md b/assets/app-description.md
index e68f9a5..646486a 100644
--- a/assets/app-description.md
+++ b/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: []
 
diff --git a/src/lock.js b/src/lock.js
index 1114a84..a110cf1 100644
--- a/src/lock.js
+++ b/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,
diff --git a/src/schema.js b/src/schema.js
index ad5af38..9b45ed6 100644
--- a/src/schema.js
+++ b/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(