Move emit_telemetry out of entrypoint

Prepare for emit_telemetry to be invoked as an alternative entrypoint,
rather than as the last command in entrypoint.sh

Dockerfile

@@ -20,6 +20,7 @@ ENV LANGUAGE en_US.UTF-8
 ENV LC_ALL en_US.UTF-8
 
 COPY entrypoint.sh /entrypoint.sh
+COPY emit_telemetry /emit_telemetry
 
 ENTRYPOINT ["/entrypoint.sh"]
 

Gemfile

@@ -12,3 +12,4 @@ gem "github-pages", "= 225"
 # even though it is included in the original GitHub Pages build infrastructure.
 gem "jekyll-include-cache", "= 0.2.1"
 gem "jekyll-octicons", "~> 14.2"
+gem "faraday", "~> 1.10"

action.yml

@@ -27,4 +27,4 @@ inputs:
     default: ${{ github.token }}
 runs:
   using: 'docker'
-  image: 'docker://ghcr.io/actions/jekyll-build-pages:v1.0.2'
+  image: 'docker://ghcr.io/actions/jekyll-build-pages:feature-emit-telemetry'

bin/record_expected_output

@@ -5,9 +5,9 @@ if [ "local" = "$1" ]; then
 	export PAGES_REPO_NWO=actions/jekyll-build-pages
 	export JEKYLL_BUILD_REVISION=JEKYLL_BUILD_REVISION
 
-	for dir in $(ls test_projects)
+	for dir in test_projects/*
 	do
-		bundle exec github-pages build --verbose -s test_projects/$dir -d test_projects/$dir/_expected
+		bundle exec github-pages build --verbose -s "$dir" -d "$dir/_expected"
 	done
 else
 	act -b -s GITHUB_TOKEN -j record-expected-output

emit_telemetry

@@ -0,0 +1,43 @@
+#! /usr/bin/env ruby
+
+require "faraday"
+require "faraday/retry"
+require "json"
+
+ACTION_NWO = ENV["GITHUB_ACTION_REPOSITORY"]
+REPOSITORY_NWO = ENV["GITHUB_REPOSITORY"]
+GITHUB_RUN_ID = ENV["GITHUB_RUN_ID"]
+GITHUB_TOKEN = ENV["INPUT_TOKEN"]
+TELEMETRY_URL = "https://api.github.com/repos/#{REPOSITORY_NWO}/pages/telemetry"
+RETRY_COUNT = 3
+
+RETRY_OPTIONS = {
+  max: RETRY_COUNT,
+  methods: [:post],
+  retry_statuses: [500, 502, 503, 504],
+  interval: 1,
+  backoff_factor: 2,
+}
+
+begin
+  connection = Faraday.new { |f| f.request :retry, RETRY_OPTIONS }
+  response = connection.post(
+    TELEMETRY_URL,
+    { github_run_id: GITHUB_RUN_ID }.to_json,
+    {
+      Accept: 'application/vnd.github.v3+json',
+      Authorization: "Bearer #{GITHUB_TOKEN}",
+      'Content-type': 'application/json',
+      'User-Agent': "#{ACTION_NWO} Faraday #{Faraday::VERSION}",
+    },
+  )
+
+  if response.success?
+    STDERR.puts "Sending telemetry for run id #{GITHUB_RUN_ID}"
+  else response.success?
+    STDERR.puts "Failed to emit pages build telemetry to #{TELEMETRY_URL} : returned status code: #{response.status} after #{RETRY_COUNT + 1} attempts"
+    STDERR.puts response.body if response.body
+  end
+rescue e
+  STDERR.puts "Failed to emit pages build telemetry: #{e}"
+end