commit-tree Git Command Guide
The git commit-tree command creates a new commit object using an existing tree object, which can be thought of as a snapshot of the working directory, and an optional commit message.
git commit-tree Syntax:
Section titled “git commit-tree Syntax:”git commit-tree <tree> [(-p <parent>) ...] [-m <message>] [(-F <file>) ...] [-S[<keyid>]] [--no-gpg-sign] [--gpg-sign[=<key-id>]] [--author <author>] [--date <date>] [--verify]Options:
Section titled “Options:”| Option | Description |
|---|---|
| -p | Use SHA-1 of parent commit |
| -m | Use given message as commit message |
| -F | Read commit message from given file |
| —author | Override author information |
| —date | Override the author date |
| —verify | Verify commit object |
| —no-gpg-sign | Don’t GPG-sign the commit |
| —gpg-sign[= | GPG-sign the commit |
| -S[ | GPG-sign the commit |
Parameters:
Section titled “Parameters:”| Parameter | Description |
|---|---|
| SHA-1 of the tree object to be committed | |
| SHA-1 of parent commit(s) |
git commit-tree Command Samples:
Section titled “git commit-tree Command Samples:”Create commit from tree with message
Section titled “Create commit from tree with message”echo "Initial commit" | git commit-tree <tree-sha>Creates a new commit object using the specified tree SHA.
Create commit with parent
Section titled “Create commit with parent”echo "Add feature" | git commit-tree -p <parent-sha> <tree-sha>Creates a commit with one parent.
Multiple parents (merge)
Section titled “Multiple parents (merge)”echo "Merge branches" | git commit-tree -p <parent1> -p <parent2> <tree-sha>Creates a merge commit with two parents.
Create commit from file message
Section titled “Create commit from file message”git commit-tree -F commit-msg.txt -p HEAD <tree-sha>Uses message from file for the commit.
Override author information
Section titled “Override author information”git commit-tree --author "Name <email>" -m "Fix bug" -p HEAD <tree-sha>Creates commit with specified author.
GPG sign the commit
Section titled “GPG sign the commit”git commit-tree -S -m "Signed commit" -p HEAD <tree-sha>Creates a GPG-signed commit.
Create commit from existing tree
Section titled “Create commit from existing tree”TREE=$(git write-tree)echo "Tree commit" | git commit-tree $TREEFirst creates a tree object, then commits it.
Verify commit object
Section titled “Verify commit object”git commit-tree --verify -m "Verified commit" -p HEAD <tree-sha>Creates commit and verifies its integrity.
How do I create a new commit object?
Section titled “How do I create a new commit object?”To create a new commit object, use:
git commit-tree <tree-sha>How can I create a commit with a parent?
Section titled “How can I create a commit with a parent?”To create a commit with a parent, run:
git commit-tree -p <parent-sha> -m "Message" <tree-sha>How do I create a merge commit?
Section titled “How do I create a merge commit?”To create a merge commit, execute:
git commit-tree -p <parent1> -p <parent2> -m "Merge" <tree-sha>How can I read commit message from a file?
Section titled “How can I read commit message from a file?”To read commit message from a file, use:
git commit-tree -F <file> -p <parent> <tree-sha>How do I sign a commit with GPG?
Section titled “How do I sign a commit with GPG?”To sign a commit with GPG, run:
git commit-tree -S -m "Message" -p <parent> <tree-sha>Applications of the git commit-tree command
Section titled “Applications of the git commit-tree command”- Creating commits programmatically in scripts and automation
- Building custom Git workflows and tools
- Implementing advanced rebasing or merging operations
- Developing Git-compatible version control systems
- Debugging repository issues at the object level
- Supporting integration with external version control systems