Split Revision Insert Before After

Use jj split to modify commit history by inserting revisions before and after specified points.

Terminal

jj split -r <revision> -B <revset> -A <revset>

jj split -r <revision> -B <revset> -A <revset>

#!/bin/bash

# Split Revision Insert Before After
jj split {{[-r|--revision]}} {{revision}} {{[-B|--insert-before]}} {{revset}} {{[-A|--insert-after]}} {{revset}}

import subprocess

# Split Revision Insert Before After
# Make sure to replace <placeholders> with actual values
def run_command():
    cmd = [
        "jj",
        "split",
        "-r",
        "<revision>",
        "-B",
        "<revset>",
        "-A",
        "<revset>"
    ]
    
    try:
        print(f"Executing: {' '.join(cmd)}")
        subprocess.run(cmd, check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error: {e}")
    except FileNotFoundError:
        print("Error: jj not found. Please install it first.")

if __name__ == "__main__":
    run_command()

When To Use

Modifying commit history for complex integration with precise branching control.

Command Builder

Tune the command before you copy it

Back to syntax

Generated Command

jj split -r <revision> -B <revset> -A <revset>

Terminal Output

Expected runtime feedback

Simulated preview

Output

Splitting revision 12345...
Inserting before revision 67890...
Inserting after revision 54321...
Split complete.

Power User Variants

Optimized versions

jj split -r 12345 -B 67890 -A 54321

Split revision 12345, inserting before 67890 and after 54321.

jj split --revision 12345 --insert-before 67890 --insert-after 54321

Same as above using long options.

Troubleshooting

Common pitfalls

Invalid revision specified

Solution: Ensure the revision exists in the repository.

Revset syntax error

Solution: Check the syntax of the revset provided.

Command Breakdown

What each part is doing

jj: Base Command; The executable that performs this operation. Here it runs Jj before the shell applies any redirect operators.
-r: r| revision; The value supplied for r| revision.
<revision>: revision; The value supplied for revision.
-B: B| insert before; The value supplied for B| insert before.
<revset>: revset; The value supplied for revset.
-A: A| insert after; The value supplied for A| insert after.
-r: Command Option; Tool-specific option used by this command invocation.
-B: Command Option; Tool-specific option used by this command invocation.
-A: Command Option; Tool-specific option used by this command invocation.

How To Run

Execution path

Step 1
Run `jj split -r <revision> -B <revset> -A <revset>` to split a revision.
Step 2
Specify the revision to split and the revsets for insertion points.
Step 3
Verify the changes in your commit history.

Alternative Approaches

Comparable commands in other tools

Alternative version control tools for the same job.

Git / Copy Files Changed In Last Commit To Remote git scp <remote_name> HEAD~1 Git / Copy Specific Directory To Remote git scp <remote_name> <path/to/directory> Git / Create Git Repo Current Directory Commit All Files git setup Bd / Sync Changes And Import From Git bd sync Git / Grant Access Current User Email git secret tell -m