Add group pull request capability for dependabot pull requests.

index.js

@@ -8,6 +8,7 @@ const {
 } = require('./lib/releases')
 const { findCommitsWithAssociatedPullRequests } = require('./lib/commits')
 const { sortPullRequests } = require('./lib/sort-pull-requests')
+const { groupPullRequests } = require('./lib/group-pull-requests')
 const { log } = require('./lib/log')
 const core = require('@actions/core')
 const { runnerIsActions } = require('./lib/utils')
@@ -181,8 +182,10 @@ module.exports = (app, { getRouter }) => {
         config,
       })
 
+    const groupedMergedPullRequests = groupPullRequests(mergedPullRequests)
+
     const sortedMergedPullRequests = sortPullRequests(
-      mergedPullRequests,
+      groupedMergedPullRequests,
       config['sort-by'],
       config['sort-direction']
     )

lib/group-pull-requests.js

@@ -0,0 +1,52 @@
+const compareVersions = require("compare-versions");
+
+const groupPullRequests = (pullRequests) => {
+
+    const dependabotPRs = {}
+    const otherPRs = []
+
+    const dependabot = new RegExp("Bump ([^\S]+) from ([^\S]+) to ([^\S]+)", "gm");
+    for (let i in pullRequests) {
+        const currentPullRequest = pullRequests[i]
+
+        if (currentPullRequest.title.match(dependabot)) {
+            const matches = [...pullRequests[i].title.matchAll(dependabot)]
+            if (dependabotPRs[matches[0][1]]) {
+                const curr = dependabotPRs[matches[0][1]]
+                const from = (compareVersions(matches[0][2], curr.from) < 0) ? matches[0][2] : curr.from
+                const to = (compareVersions(matches[0][3], curr.to) > 0) ? matches[0][3] : curr.to
+                curr.number.push(currentPullRequest.number)
+                dependabotPRs[matches[0][1]] = {
+                    from: from,
+                    to: to,
+                    number: curr.number,
+                    pr: currentPullRequest
+                }
+            } else {
+                dependabotPRs[matches[0][1]] = {
+                    from: matches[0][2],
+                    to: matches[0][3],
+                    number: [currentPullRequest.number],
+                    pr: currentPullRequest
+                }
+            }
+        } else {
+            otherPRs.push(currentPullRequest)
+        }
+    }
+
+    const result = [...otherPRs]
+
+    for (const [key, value] of Object.entries(dependabotPRs)) {
+        const item = value.pr
+        const joined = `Bump ${key} from ${value.from} to ${value.to}`
+        item.title = joined
+        item.number = value.number
+        result.push(item)
+    }
+    console.log(result)
+
+    return result
+}
+
+exports.groupPullRequests = groupPullRequests

lib/template.js

@@ -12,6 +12,8 @@ const template = (string, object, customReplacers) => {
     let result
     if (object[k] === undefined || object[k] === null) {
       result = k
+    } else if (Array.isArray(object[k])) {
+      result = object[k].map(item => `${item}`).join(',#')
     } else if (typeof object[k] === 'object') {
       result = template(object[k].template, object[k])
     } else {