Update check_main to true as default

[pxLi]

Fixes #57

Changed check_main default from false to true so license header validation runs on all PRs, including those targeting the main branch. Previously these were skipped by default.

[greptile-apps]

Greptile Summary

This PR makes two changes to license-header-check/action.yml: it updates the copyright year from 2025 to 2026 (matching the current year), and flips the check_main input default from false to true so license-header validation now runs by default on PRs targeting the main branch.

Existing consumers of this action who rely on the implicit default (i.e., they do not explicitly pass check_main) will now have the check enabled for main-targeting PRs — a behavioral breaking change that is the stated intent of fixing #57.

Confidence Score: 5/5

Safe to merge — the change is intentional, minimal, and aligns exactly with the stated goal of fixing #57.

Both changes (copyright year and default value flip) are correct and intentional. No new logic is introduced, and the existing check logic handles the new default correctly. No P0/P1 issues found.

No files require special attention.

Important Files Changed

Filename	Overview
license-header-check/action.yml	Copyright year updated to 2026 and check_main default changed from false to true; intentional behavioral change, no logic errors introduced.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[PR triggered] --> B{check_main == false\nAND base.ref == main?}
    B -- Yes --> C[Skip check\nexit 0]
    B -- No --> D[Get changed files via git diff]
    D --> E[Filter by include/exclude patterns]
    E --> F{All files have\nvalid license header?}
    F -- Yes --> G[All files passed\nexit 0]
    F -- No --> H[Report missing headers\nexit 1]

Loading

_{Reviews (1): Last reviewed commit: "Update check_main to true as default" | Re-trigger Greptile}