Defame1297
af8b46cd57
Regenerate plugins/*/skills/ from plugins/*/.apm/ after the previous four commits, via scripts/sync-plugin-content.sh --all. The mirror is generated output (ADR-0017) that check-plugin-content-sync's pre-push hook diffs against .apm/; nothing here is hand-edited. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EeH8SCbcrCAQrtymkNuhKP
32 lines
1.6 KiB
Markdown
32 lines
1.6 KiB
Markdown
---
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topic: fetch
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source_keys:
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- git-scm-fetch-docs
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- context7-git-htmldocs
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---
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# Fetching
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Fetch **with no refspec** updates remote-tracking branches (`refs/remotes/<name>/*`) and leaves every local branch alone.
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That safety comes from the default refspec, not from `fetch` itself. Give it an explicit one and it writes to local branches: verified on Git 2.39.5, `git fetch origin main:probe` fast-forwarded the local `probe` branch, and a `+` prefix force-updates the destination, discarding whatever commits it held. Treat any `fetch` carrying a `<src>:<dst>` refspec as a branch update, not a read.
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- **One remote**: `rtk git fetch <remote>` — all branches
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- **One branch**: `rtk git fetch <remote> <branch>` — the result lands in `FETCH_HEAD`, not a tracking ref
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- **All remotes**: `rtk git fetch --all`
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- **Prune properly**: `rtk git fetch --all --prune --prune-tags` cleans stale branches *and* tags
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- **Auto-prune**: `rtk git config --global fetch.prune true` (or `remote.<name>.prune` to scope it to one remote), and `fetch.pruneTags true` for tags
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## Shallow and partial fetch
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```bash
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rtk git fetch --depth=<n> # deepen history, or create a shallow clone
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rtk git fetch --unshallow # convert a shallow clone to full history
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rtk git fetch --update-shallow # allow the fetch to update the shallow boundary
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rtk git fetch --refmap='' <remote> <branch> # fetch without updating any tracking ref (FETCH_HEAD only)
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```
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## Default fetch refspec
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The default is `+refs/heads/*:refs/remotes/<name>/*`. The leading `+` forces the update — remote-tracking branches always mirror the remote exactly and offer no protection for local history.
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