fix: use GITHUB_EVENT_PATH instead of REST API to get repo info (#72)

CHANGELOG.md

@@ -6,6 +6,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v5.1.1] - 2023-07-17
+### Fixed
+- Use `GITHUB_EVENT_PATH` to get extra repo info
+  (instead of GitHub REST API, which is flaky).
+
 ## [v5.1.0] - 2023-07-13
 ### Added
 - Ability to test a local `luarocks install`, without uploading to luarocks.org

bin/luarocks-tag-release-action.lua

@@ -126,6 +126,7 @@ local args = {
   upload = not is_pull_request,
   license = license_input ~= '' and license_input or nil,
   luarocks_test_interpreters = test_interpreters,
+  github_event_path = getenv_or_err('GITHUB_EVENT_PATH'),
 }
 table.insert(args.dependencies, 1, 'lua >= 5.1')
 

lua/luarocks-tag-release.lua

@@ -20,6 +20,7 @@
 ---@field upload boolean Whether to upload to LuaRocks.
 ---@field license string|nil License SPDX ID (optional).
 ---@field luarocks_test_interpreters lua_interpreter[]
+---@field github_event_path string|nil The path to the file on the runner that contains the full event webhook payload. For example, /github/workflow/event.json.
 
 ---@param package_name string
 ---@param package_version string
@@ -162,10 +163,14 @@ local function luarocks_tag_release(package_name, package_version, specrev, args
   local repo_url = args.github_server_url .. '/' .. args.github_repo
   local homepage = repo_url
   local license
-  local repo_info_str, _ =
-    execute('curl -H "Accept: application/vnd.github+json" https://api.github.com/repos/' .. args.github_repo, print)
+  local github_event_data = args.github_event_path and read_file(args.github_event_path)
   local json = require('dkjson')
-  local repo_meta = repo_info_str and repo_info_str ~= '' and json.decode(repo_info_str)
+  local github_event_tbl = github_event_data and json.decode(github_event_data)
+  local repo_meta = github_event_tbl
+    and (
+      github_event_tbl.pull_request and github_event_tbl.pull_request.head and github_event_tbl.pull_request.head.repo
+      or github_event_tbl.repository
+    )
   if repo_meta then
     local repo_license = repo_meta.license or repo_meta.source and repo_meta.source.license
     if args.license then