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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Jujutsu makes repository-level undo a visible, operation-based workflow: inspect a timeline of repository states, then undo the latest operation, reverse a selected one, or restore the state captured at an earlier point. That is a meaningful difference in emphasis—not proof that Git has no recovery tools.
What does Jujutsu’s operation log record?
jj op log shows operations that changed repository state, with a view of the repository after each operation. That view includes where bookmarks, tags, Git refs in Git-backed repositories, repository heads, and each workspace’s working-copy commit point. Operation records also include parent-operation pointers and metadata such as timestamp, username, hostname, and description.
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This makes the log more than a list of source-code commits: it provides a timeline for repository changes and the states they produced. The Jujutsu project documents this model in its operation-log guide.
How do Jujutsu’s undo commands differ?
Choose a command according to how much history you want to reverse or replace:
#1 Best Overall
| Command | Effect | Use it when |
|---|---|---|
jj undo |
Creates an inverse of the latest operation by default. | The most recent repository operation was the mistake. |
jj op revert <operation-id> |
Creates an inverse of the selected earlier operation. | You need to reverse a specific operation without treating it as the latest one. |
jj op restore <operation-id> |
Creates a new operation restoring repository state to the state captured at the selected operation, effectively undoing later operations. | You want the repository to match an earlier point in the operation timeline. |
These are distinct scopes: undo the latest action, invert a chosen action, or restore a past state. The v0.27.0 CLI reference describes the restore command and its options; check the documentation for your installed release because command behavior and experimental options can change.
How does this compare with Git?
Jujutsu’s distinguishing feature is that operation-level recovery is built into its visible workflow. Git workflows are commonly organized around commits and refs. That contrast should not be overstated as “Git cannot undo”: the available documentation here does not establish a detailed comparison with Git’s reflog or other recovery mechanisms.
Rank #2
| Question | Jujutsu | Git |
|---|---|---|
| What is the recovery history centered on? | Repository operations and a recorded repository view after each operation. | Common workflows center on commits and refs; a more specific recovery comparison is not established by the cited sources. |
| Can recovery target different scopes? | Yes: latest operation, selected operation, or repository state at a selected operation. | Git has recovery mechanisms, but the cited sources do not establish equivalent command-by-command details. |
| How are uncommitted working-copy changes handled? | The working copy is represented as a commit, and Jujutsu snapshots working-copy changes before almost all commands. | The cited sources do not establish a directly comparable working-copy model. |
| Can the tools interoperate? | Jujutsu can use a regular Git repository and collaborate with Git users, with documented compatibility limits. | Jujutsu’s compatibility documentation describes Git-backed use; it does not establish that every Git feature is supported by Jujutsu. |
Jujutsu’s Git compatibility documentation says Git configuration and tags are partially supported, while hooks and .gitattributes are unsupported in the reviewed documentation. Those limits matter if a project depends on Git-specific configuration or automation.
Why does the working-copy model matter?
Jujutsu treats the working copy as a commit and snapshots its changes before almost all commands. Commands then operate on commits in the repository. This helps explain why operation history can capture repository movements alongside working-copy changes, rather than requiring a separate stash-centered step as the only way to preserve work.
Rank #3
It is a different way to represent and manage work in progress, not a promise that every recovery problem disappears. The operation log’s usefulness still depends on its recorded history and on the lifecycle of the objects it references.
How can you inspect and recover safely?
- Inspect the operation timeline. Run
jj op logand identify the operation that changed the repository. The CLI reference says this command normally snapshots the working copy and reconciles divergent operations. - Use a non-mutating inspection mode if needed. To inspect without those normal effects, the v0.27.0 reference documents
jj op log --at-op=@ --ignore-working-copy. Confirm that syntax and behavior against your installed version. - Choose the smallest recovery scope that fits. Use
jj undofor the latest operation,jj op revert <operation-id>to invert a selected operation, orjj op restore <operation-id>to restore an earlier state. - Check remote-tracking state before restoring. The v0.27.0 reference says
jj op restoredefaults to restoring repository and remote-tracking state. It warns not to restore remote-tracking bookmarks if you want to push after undoing. The--whatoption is marked experimental in that reference, so verify the installed version’s behavior before using it.
Jujutsu also documents that abandoned operations, commits, and other unreachable objects can eventually be garbage-collected with jj util gc. An operation log is therefore a strong recovery aid, not an unlimited archive of every past state.
Is Jujutsu the right fit for a Git user?
Jujutsu’s README describes it as “an experimental version control system.” The project cautions that work-in-progress features, suboptimal user experience, or workflow gaps may make it unsuitable for a particular user. Its operation-level recovery can appeal to people who want repository-state history and explicit recovery scopes, but Git compatibility gaps and the project’s experimental status make fit dependent on a team’s needs. See the Jujutsu project README for its own status description.
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