From a885ee3b3eced90b28ab731841be880fe1e5bb7d Mon Sep 17 00:00:00 2001
From: Olivier Fournier <66017789+tgdfool2@users.noreply.github.com>
Date: Tue, 26 Oct 2021 20:57:26 +0200
Subject: [PATCH] Add new LOOKBACK_DAYS variable (#15)

---
 README.md | 1 +
 github.js | 7 ++++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 4495763..0023f67 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,7 @@ The dashboard has all of it's parameters passed via environment variables.
 - GITHUB_APP_CLIENTSECRET - The client secret from the GitHub App general settings page.
 - GITHUB_APP_INSTALLATIONID - Installation id that can be retrieved using steps in the next section.
 - GITHUB_APP_WEBHOOK_SECRET - Optional. If you don't supply the dashboard will not setup webhooks and only update every 15 minutes.
+- LOOKBACK_DAYS - Optional, defaults to 7. Number of days to look in the past for workflow runs.
 - DEBUG=action-dashboard:\* - Optional setting to help in debugging
 
 ### Installation Id
diff --git a/github.js b/github.js
index da5032b..a81a425 100644
--- a/github.js
+++ b/github.js
@@ -22,6 +22,7 @@ const _privateKey = Buffer.from(process.env.GITHUB_APP_PRIVATEKEY || "", "base64
 const _clientId = process.env.GITHUB_APP_CLIENTID;
 const _clientSecret = process.env.GITHUB_APP_CLIENTSECRET;
 const _installationId = process.env.GITHUB_APP_INSTALLATIONID;
+const _lookbackDays = process.env.LOOKBACK_DAYS || 7
 
 // Cache all workflows to speed up refresh
 let _runs = [];
@@ -98,13 +99,13 @@ GitHub.getUsage = async function getUsage(repoOwner, repoName, workflowId, run_i
 
 GitHub.getMostRecentRuns = async function getMostRecentRuns(repoOwner, repoName, workflowId) {
     try {
-        const sevenDaysAgo = dayjs().subtract(7, 'day');
+        const daysAgo = dayjs().subtract(_lookbackDays, 'day');
         const runs = await octokit.paginate(octokit.actions.listWorkflowRuns, { repo: repoName, owner: repoOwner, workflow_id: workflowId });
         if (runs.length > 0) {
             const groupedRuns = _.groupBy(runs, 'head_branch')
             const rows = _.reduce(groupedRuns, (result, runs, branch) => {
                 debug(`branch`, branch);
-                if (sevenDaysAgo.isBefore(dayjs(runs[0].created_at))) {
+                if (daysAgo.isBefore(dayjs(runs[0].created_at))) {
                     debug(`adding run.id: ${runs[0].id}`);
                     result.push({
                         runId: runs[0].id,
@@ -231,4 +232,4 @@ if (!process.env.DOCKER_BUILD) {
     setInterval(GitHub.refreshRuns, 1000 * 60 * 15);
 }
 
-module.exports = GitHub;
\ No newline at end of file
+module.exports = GitHub;