From c45b2160f23774e709958e3070d1e5bdd78d1e82 Mon Sep 17 00:00:00 2001
From: Dmitry Gurovich <yrtimid@gmail.com>
Date: Sun, 14 Jul 2024 15:57:14 +0300
Subject: [PATCH] gracefully handle new branches/tags pushes

---
 dist/index.js | 37 +++++++++++++++++++++----------------
 package.json  |  2 +-
 src/match.ts  | 17 ++++++++++-------
 3 files changed, 32 insertions(+), 24 deletions(-)

diff --git a/dist/index.js b/dist/index.js
index 31f92cf..05b052c 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -52447,25 +52447,30 @@ function check(context, options) {
         core.debug(JSON.stringify(watchers, ['user', 'patterns', 'login']));
         core.info(`Comparing ${shaFrom}...${shaTo}`);
         let commits = [];
-        let commitsIter = octokit.paginate.iterator(octokit.rest.repos.compareCommits, { owner, repo, base: shaFrom, head: shaTo, per_page: PAGE_SIZE });
-        try {
-            for (var _f = true, commitsIter_1 = __asyncValues(commitsIter), commitsIter_1_1; commitsIter_1_1 = yield commitsIter_1.next(), _a = commitsIter_1_1.done, !_a; _f = true) {
-                _c = commitsIter_1_1.value;
-                _f = false;
-                let { data } = _c;
-                (_d = context.compareLink) !== null && _d !== void 0 ? _d : (context.compareLink = data.html_url);
-                commits.push(...(_e = data.commits.map(c => c.sha)) !== null && _e !== void 0 ? _e : []);
-                if (commits.at(-1) === shaTo) {
-                    break;
-                }
-            }
+        if (shaFrom === '0000000000000000000000000000000000000000') {
+            core.info(`Unusable 'shaFrom' value (probably new branch was created).`);
         }
-        catch (e_1_1) { e_1 = { error: e_1_1 }; }
-        finally {
+        else {
+            let commitsIter = octokit.paginate.iterator(octokit.rest.repos.compareCommits, { owner, repo, base: shaFrom, head: shaTo, per_page: PAGE_SIZE });
             try {
-                if (!_f && !_a && (_b = commitsIter_1.return)) yield _b.call(commitsIter_1);
+                for (var _f = true, commitsIter_1 = __asyncValues(commitsIter), commitsIter_1_1; commitsIter_1_1 = yield commitsIter_1.next(), _a = commitsIter_1_1.done, !_a; _f = true) {
+                    _c = commitsIter_1_1.value;
+                    _f = false;
+                    let { data } = _c;
+                    (_d = context.compareLink) !== null && _d !== void 0 ? _d : (context.compareLink = data.html_url);
+                    commits.push(...(_e = data.commits.map(c => c.sha)) !== null && _e !== void 0 ? _e : []);
+                    if (commits.at(-1) === shaTo) {
+                        break;
+                    }
+                }
+            }
+            catch (e_1_1) { e_1 = { error: e_1_1 }; }
+            finally {
+                try {
+                    if (!_f && !_a && (_b = commitsIter_1.return)) yield _b.call(commitsIter_1);
+                }
+                finally { if (e_1) throw e_1.error; }
             }
-            finally { if (e_1) throw e_1.error; }
         }
         let notifications = [];
         for (let sha of commits) {
diff --git a/package.json b/package.json
index 1786b4a..de502c4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "github-codewatchers",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "description": "GitHub Action that triggers notifications about changed files to a list of subscribers",
   "main": "dist/index.js",
   "scripts": {
diff --git a/src/match.ts b/src/match.ts
index 8415ca5..b433767 100644
--- a/src/match.ts
+++ b/src/match.ts
@@ -14,14 +14,17 @@ export async function check(context: Context, options: Options): Promise<Notif.N
 	core.debug(JSON.stringify(watchers, ['user', 'patterns', 'login']));
 
 	core.info(`Comparing ${shaFrom}...${shaTo}`);
-
 	let commits: string[] = [];
-	let commitsIter = octokit.paginate.iterator(octokit.rest.repos.compareCommits, { owner, repo, base: shaFrom, head: shaTo, per_page: PAGE_SIZE });
-	for await (let { data } of commitsIter) {
-		context.compareLink ??= data.html_url;
-		commits.push(...data.commits.map(c => c.sha) ?? []);
-		if (commits.at(-1) === shaTo) {
-			break;
+	if (shaFrom === '0000000000000000000000000000000000000000') {
+		core.info(`Unusable 'shaFrom' value (probably new branch was created).`);
+	} else {
+		let commitsIter = octokit.paginate.iterator(octokit.rest.repos.compareCommits, { owner, repo, base: shaFrom, head: shaTo, per_page: PAGE_SIZE });
+		for await (let { data } of commitsIter) {
+			context.compareLink ??= data.html_url;
+			commits.push(...data.commits.map(c => c.sha) ?? []);
+			if (commits.at(-1) === shaTo) {
+				break;
+			}
 		}
 	}