GitHub Actions

Share various tips and know-how about GitHub Actions used in development.

Solving "Argument list too long" Error in GitHub Actions

2026-02-26
Learn about the cause of the "Argument list too long" error that occurs when there are many changed files in monorepo CI, and how to solve it by switching from Bash to JavaScript (actions/github-script).
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A GitHub Actions Workflow to Restrict File Change Scope by Branch in a Monorepo

2026-02-26
Learn how to implement a GitHub Actions workflow that automatically validates whether changed files in a PR fall within the corresponding service directory based on the branch name in a monorepo.
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Running ESLint Only on Changed Files in CI

2026-02-25
Learn how to run ESLint only on changed files in CI to introduce new ESLint rules without friction in a large-scale monorepo.
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Troubleshooting Dependabot PRs Not Working in a Monorepo

2025-02-05
Learn about the causes and solutions for Dependabot rebase failures due to Branch Protection Rules and lockfile updates in a Yarn Workspaces-based monorepo.
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Automation for Handling Dependabot PRs

2025-02-04
Learn about Dependabot configuration and how to automate PR handling using GitHub Actions in a Monorepo environment.
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SOP(Standard Operating Procedure) for Handling Dependabot PRs

2025-02-03
Learn about risk classification criteria and handling methods for efficiently processing Dependabot-generated PRs in a Monorepo environment.
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[GitHub Actions] Send Slack message for Reviewer

2024-11-13
Let's see how to send Slack messages when Reviewer is assigned using GitHub Actions and how to send PR list to Reviewer as Slack message every morning.
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[GitHub Actions] Improve Jest test performance in GitHub Actions

2024-10-23
Let's see how to improve the performance of the Action that runs Jest in GitHub Actions.
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[GitHub Actions] Removing duplication in GitHub Actions using Composite Action

2024-10-22
Let's see how to use Composite Action to remove duplication in GitHub Actions and increase the reusability of Actions.
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[GitHub Actions] How to execute GitHub Actions manually

2024-09-13
Let's see how to execute GitHub Actions manually.
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[GitHub Actions] How to check PR title with GitHub Actions in monorepo environment

2024-09-10
In a monorepo environment, let's see how to check the title of a PR (Pull Request) using GitHub Actions.
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[GitHub Actions] How to check branch name with GitHub Actions

2024-09-02
Let's see how to check the branch name when creating a PR using GitHub Actions.
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