references/sources.md credits atlassian-gitflow-tutorial with contributing the `--no-ff` requirement on Gitflow supporting-branch merges to references/merging.md, and merging.md:14 does carry that claim — but the file's own source_keys listed only context7-git-htmldocs, so the chain was one-directional. Surfaced by repairing validate-provenance.sh's Contributing-files parser in the same series; this skill was one of seven whose sources.md the old parser could not read, so checks 4 and 5 had never run against it. Refs #99
31 lines
1.3 KiB
Markdown
31 lines
1.3 KiB
Markdown
---
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source_keys:
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- context7-git-htmldocs
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- atlassian-gitflow-tutorial
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---
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# Merging one branch into another
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Scope is fast-forward and merge-commit mechanics plus conflict resolution. Rebase belongs to
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`git-commits`; cherry-pick and revert to `git-history`.
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- **Fast-forward** — `git merge <branch>` advances the pointer with no merge commit when the
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target has not diverged.
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- **True merge** — `git merge --no-ff <branch>` forces a merge commit even when a fast-forward is
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possible. Gitflow requires it on every supporting-branch merge.
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- **Squash merge** — `git merge --squash <branch>` stages the combined diff without committing.
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Follow it with a `git commit`.
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- **Octopus merge** — `git merge branch-a branch-b branch-c` merges more than two branches at
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once, but fails outright on any conflict. Use sequential two-way merges when conflicts are
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likely.
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## Conflict resolution
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When Git cannot auto-merge it writes conflict markers and stops mid-merge. Run `git status` to
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list the conflicted files, edit each to resolve its markers, then `git add <file>` and
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`git merge --continue`.
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- `git merge --abort` restores the pre-merge state.
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- `git mergetool` opens the configured merge tool.
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- `git diff --diff-filter=U` shows only the still-conflicted files.
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