From 8e348cbc0ad9a9a7db4c276dbda028a28a662463 Mon Sep 17 00:00:00 2001
From: Lup Yuen Lee <luppy@appkaki.com>
Date: Tue, 22 Oct 2024 08:36:47 +0800
Subject: [PATCH] Estimate the GitHub Runner Hours for the day so far

---
 compute-github-runners.sh | 67 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100755 compute-github-runners.sh

diff --git a/compute-github-runners.sh b/compute-github-runners.sh
new file mode 100755
index 0000000..c3dabe2
--- /dev/null
+++ b/compute-github-runners.sh
@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+## Estimate the GitHub Runner Hours for the day so far (by UTC time).
+## We Accumulate the GitHub Job Duration and Extrapolate the GitHub Runner Hours.
+
+## Job Duration to Runner Hours is inflated slightly
+duration_hours_to_runner_hours=8
+
+## For Testing:
+## date=2024-10-21
+## hours=24
+date=$(date -u +'%Y-%m-%d')
+hours=$(( 1+$(date -u +'%H') ))
+
+## Set the GitHub Token: export GITHUB_TOKEN=...
+. $HOME/github-token.sh
+
+## Accumulate the Job Duration and Extrapolate the Runner Hours
+function add_runner_hours {
+  local repo=$1
+  local run_ids=$(
+    gh run list \
+      --repo $repo \
+      --limit 1000 \
+      --created $date \
+      --json databaseId,createdAt,displayTitle,name \
+      --jq '.[].databaseId'
+  )
+
+  for run_id in $run_ids; do
+    # echo run_id=$run_id
+    local run_duration_ms=$(
+      curl -L --silent \
+        -H "Accept: application/vnd.github+json" \
+        -H "Authorization: Bearer $GITHUB_TOKEN" \
+        -H "X-GitHub-Api-Version: 2022-11-28" \
+        https://api.github.com/repos/$repo/actions/runs/$run_id/timing \
+        | jq '.run_duration_ms'
+    )
+    if [[ "$run_duration_ms" == "null" ]]; then
+      continue
+    fi
+    # echo run_duration_ms=$run_duration_ms
+    local runner_hours=$(
+      bc -e "$duration_hours_to_runner_hours*$run_duration_ms/1000/60/60"
+    )
+    # echo runner_hours=$runner_hours
+    if [[ "$runner_hours" != "0" ]]; then
+      echo $run_id,$run_duration_ms,$runner_hours
+      total_runner_hours=$(( $total_runner_hours+$runner_hours ))
+    fi
+  done
+}
+
+## Accumulate the Runner Hours for nuttx and nuttx-apps repos
+echo run_id,run_duration_ms,runner_hours
+total_runner_hours=0
+add_runner_hours apache/nuttx
+add_runner_hours apache/nuttx-apps
+
+## Compute the Full-Time Runners
+fulltime_runners=$(
+  bc -e "$total_runner_hours/$hours"
+)
+echo date=$date
+echo hours=$hours
+echo total_runner_hours=$total_runner_hours
+echo fulltime_runners=$fulltime_runners