feat: deduplicate changelogs

Deduplicate changelogs in monorepo PRs. i.e. the same monorepo won’t be included more than once.

lib/workers/pr/index.js

@@ -70,6 +70,8 @@ async function ensurePr(prConfig) {
 
   const issueRe = /([\s(])#(\d+)([)\s]?)/g;
 
+  const commitRepos = [];
+
   // Get changelog and then generate template strings
   for (const upgrade of upgrades) {
     const upgradeKey = `${upgrade.depName}-${upgrade.changeLogFromVersion}-${
@@ -85,33 +87,35 @@ async function ensurePr(prConfig) {
       upgrade.changeLogFromVersion,
       upgrade.changeLogToVersion
     );
-    // Store changelog markdown for backwards compatibility
     if (logJSON) {
       upgrade.githubName = logJSON.project.github;
       upgrade.releases = [];
-      logJSON.versions.forEach(version => {
-        const release = { ...version };
-        release.commits = [];
-        if (release.changes) {
-          release.changes.forEach(change => {
-            const commit = { ...change };
-            delete commit.date;
-            commit.shortSha = change.sha.slice(0, 7);
-            commit.url = `${logJSON.project.repository}/commit/${change.sha}`;
-            if (change.message) {
-              [commit.message] = change.message.split('\n');
-              if (!config.isGitHub || config.privateRepo === true) {
-                commit.message = commit.message.replace(
-                  issueRe,
-                  `$1[#$2](${upgrade.repositoryUrl}/issues/$2)$3`
-                );
+      if (!commitRepos.includes(upgrade.githubName)) {
+        commitRepos.push(upgrade.githubName);
+        logJSON.versions.forEach(version => {
+          const release = { ...version };
+          release.commits = [];
+          if (release.changes) {
+            release.changes.forEach(change => {
+              const commit = { ...change };
+              delete commit.date;
+              commit.shortSha = change.sha.slice(0, 7);
+              commit.url = `${logJSON.project.repository}/commit/${change.sha}`;
+              if (change.message) {
+                [commit.message] = change.message.split('\n');
+                if (!config.isGitHub || config.privateRepo === true) {
+                  commit.message = commit.message.replace(
+                    issueRe,
+                    `$1[#$2](${upgrade.repositoryUrl}/issues/$2)$3`
+                  );
+                }
               }
-            }
-            release.commits.push(commit);
-          });
-        }
-        upgrade.releases.push(release);
-      });
+              release.commits.push(commit);
+            });
+          }
+          upgrade.releases.push(release);
+        });
+      }
     }
     config.upgrades.push(upgrade);
   }