fix: add force_push and fetch-depth: 0

[thedavidweng]

Fix mirror workflow.

[greptile-apps]

Greptile Summary

This PR fixes the mirror workflow by adding fetch-depth: 0 to the checkout step and enabling force_push on the mirror action, both of which are required for a correct full-history mirror to Codeberg.

• fetch-depth: 0: Without this, actions/checkout performs a shallow clone (depth 1), so only the latest commit is available. The mirror action would then fail to push the complete history, branches, and tags to Codeberg.
• force_push: true: Allows the mirror action to overwrite the Codeberg remote when it diverges from the source (e.g., after upstream rebases or force-pushes), preventing sync failures.

Confidence Score: 5/5

Safe to merge — the two additions are minimal, targeted, and correct for a full-history mirror workflow.

Both changes directly fix the mirror workflow: the shallow checkout was preventing the mirror action from seeing the full branch and tag history, and without force_push the action would stall whenever the remote had drifted. The workflow already pins both action SHAs and uses a secret for the token. No unintended side effects are introduced.

No files require special attention.

Important Files Changed

Filename	Overview
.github/workflows/mirror.yml	Adds fetch-depth: 0 for full history checkout and force_push: true for the mirror action — both are correct and necessary for a complete mirror workflow.

Sequence Diagram

%%{init: {'theme': 'neutral'}}%%
sequenceDiagram
    participant GH as GitHub (source)
    participant Runner as GitHub Actions Runner
    participant CB as Codeberg (mirror)

    GH->>Runner: push / workflow_dispatch event
    Runner->>GH: actions/checkout (fetch-depth: 0)
    Note over Runner: Full history + all branches/tags fetched
    GH-->>Runner: Complete git history
    Runner->>CB: cssnr/mirror-repository-action (force_push: true)
    Note over CB: All refs overwritten to match source

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sequenceDiagram
    participant GH as GitHub (source)
    participant Runner as GitHub Actions Runner
    participant CB as Codeberg (mirror)

    GH->>Runner: push / workflow_dispatch event
    Runner->>GH: actions/checkout (fetch-depth: 0)
    Note over Runner: Full history + all branches/tags fetched
    GH-->>Runner: Complete git history
    Runner->>CB: cssnr/mirror-repository-action (force_push: true)
    Note over CB: All refs overwritten to match source

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