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Add renderTemplateFromFile helper to consolidate file-based template rendering#22186

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pelikhan merged 2 commits intomainfrom
copilot/refactor-render-template-helper
Mar 21, 2026
Merged

Add renderTemplateFromFile helper to consolidate file-based template rendering#22186
pelikhan merged 2 commits intomainfrom
copilot/refactor-render-template-helper

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Copilot AI commented Mar 21, 2026

Repeated pattern of fs.readFileSync + renderTemplate across multiple files warrants a single helper. This adds renderTemplateFromFile(templatePath, context) to messages_core.cjs and refactors all adjacent call-sites to use it.

Changes

  • messages_core.cjs — adds renderTemplateFromFile(templatePath, context) which reads a file and delegates to renderTemplate; exports it alongside existing utilities
  • messages.cjs — re-exports renderTemplateFromFile from the barrel file
  • Refactored callers (7 files, 9 locations):
    • checkout_pr_branch.cjs
    • push_to_pull_request_branch.cjs
    • create_pull_request.cjs (3 locations)
    • handle_agent_failure.cjs (2 locations)
    • handle_noop_message.cjs
    • missing_issue_helpers.cjs
    • create_issue.cjs
  • Unused fs requires removed from checkout_pr_branch.cjs, create_pull_request.cjs, missing_issue_helpers.cjs, and create_issue.cjs

Before / After

// Before
const template = fs.readFileSync(templatePath, "utf8");
const body = renderTemplate(template, { workflow_name, run_url });

// After
const body = renderTemplateFromFile(templatePath, { workflow_name, run_url });
  • messages_core.test.cjs — adds 4 tests for renderTemplateFromFile
  • checkout_pr_branch.test.cjs — updates mock to provide renderTemplateFromFile instead of renderTemplate

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Copilot AI changed the title [WIP] Refactor template rendering logic for simplification Add renderTemplateFromFile helper to consolidate file-based template rendering Mar 21, 2026
Copilot AI requested a review from pelikhan March 21, 2026 19:24
@pelikhan pelikhan marked this pull request as ready for review March 21, 2026 19:32
Copilot AI review requested due to automatic review settings March 21, 2026 19:32
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Pull request overview

This PR consolidates the repeated “read a template file + render placeholders” pattern into a single helper, renderTemplateFromFile(templatePath, context), and updates call sites to use it.

Changes:

  • Added renderTemplateFromFile() to messages_core.cjs and exported it (also re-exported via messages.cjs).
  • Refactored multiple workflow scripts to call renderTemplateFromFile() instead of fs.readFileSync() + renderTemplate().
  • Added unit tests for the new helper and updated a caller test mock to match the new API.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file
File Description
actions/setup/js/messages_core.cjs Adds renderTemplateFromFile() and exports it.
actions/setup/js/messages.cjs Re-exports renderTemplateFromFile() from the barrel module.
actions/setup/js/messages_core.test.cjs Adds tests validating file-based template rendering behavior.
actions/setup/js/push_to_pull_request_branch.cjs Refactors a template render call site to use renderTemplateFromFile().
actions/setup/js/missing_issue_helpers.cjs Removes direct file read + render pattern in favor of renderTemplateFromFile().
actions/setup/js/handle_noop_message.cjs Refactors comment template rendering to use renderTemplateFromFile().
actions/setup/js/handle_agent_failure.cjs Refactors two template render call sites to use renderTemplateFromFile().
actions/setup/js/create_pull_request.cjs Refactors three template render call sites to use renderTemplateFromFile().
actions/setup/js/create_issue.cjs Refactors issue template rendering to use renderTemplateFromFile() and removes unused fs require.
actions/setup/js/checkout_pr_branch.cjs Refactors step summary template rendering to use renderTemplateFromFile() and removes unused fs require.
actions/setup/js/checkout_pr_branch.test.cjs Updates test mocking to provide renderTemplateFromFile() instead of renderTemplate().

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Comment on lines 25 to 30
const { createAuthenticatedGitHubClient } = require("./handler_auth.cjs");
const { buildWorkflowRunUrl } = require("./workflow_metadata_helpers.cjs");
const { checkFileProtection } = require("./manifest_file_helpers.cjs");
const { renderTemplate } = require("./messages_core.cjs");
const { renderTemplateFromFile } = require("./messages_core.cjs");
const { COPILOT_REVIEWER_BOT, FAQ_CREATE_PR_PERMISSIONS_URL } = require("./constants.cjs");

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PR description mentions removing an unused fs require from this file, but fs is still required and used throughout (e.g., patch file exists/read operations). Either update the PR description or clarify which fs import was removed to avoid confusion for reviewers.

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@pelikhan pelikhan merged commit 8b03446 into main Mar 21, 2026
170 checks passed
@pelikhan pelikhan deleted the copilot/refactor-render-template-helper branch March 21, 2026 20:39
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3 participants