git-merge-index - Linux
Overview
git-merge-index is a Git command that updates the index with a merge of its current content and one or more trees. This command is commonly used to merge changes from upstream or to resolve merge conflicts.
Syntax
git merge-index [<options>] <tree-ish> [<tree-ish>...]
Options/Flags
- -a: Update the index before merging, adding all new files and modifying all existing files.
- –ignore-ancestry: Ignore changes in ancestry.
- -m: Merge as a commit, preserving log messages.
- –no-commit: Do not merge as a commit.
- –quiet: Suppress output.
- -v: Be verbose in output.
Examples
Basic usage
To merge changes from the develop
branch into the index:
git merge-index develop
Merging multiple trees
To merge changes from two branches, feature1
and feature2
, into the index:
git merge-index feature1 feature2
Merging with conflict resolution
To resolve merge conflicts after merging, use the -m
option to create a commit with conflict markers:
git merge-index -m develop
Common Issues
Merge conflicts
If changes in the target branches conflict, git-merge-index
will fail. Use the -m
option to create a commit with conflict markers and resolve them manually.
Integration
Automating merges
git-merge-index
can be used in scripts to automate merge operations, such as merging upstream changes regularly.
Related Commands
- git-merge: Merge commits.
- git-cherry-pick: Apply a commit from one branch to another.
- git-rebase: Rebase commits onto a new base commit.