Related Stacking Tools

`arcanist` (`arc`)

Pros:

Rebases each branch when merging
Show review status of each Diff (Phab's equivalent of PR)
Nicer status view than git log

Cons:

Coupled to Phabricator which is EOL
Auto-rebasing doesn't preserve branch relationships (stacks)
No auto-rebase outside of "landing" a Diff (merging a PR)

depo-tools

git rebase-update to pull, rebase, and cleanup merged changes
git map and git map-branches for showing branch and commit relationships
git reparent-branch to rebase a tree of branches onto another branch
git nav-downstream / git nav-upstream to move between parent / child branches in a stack
- git nav-downstream prompts on ambiguity

Cons:

Relies on a branch's upstream being set to the parent branch, rather than the remote used for PRs

`git-branchless`

Pros:

git undo seems to provide a nice experience!
git smartlog
- Identifies orphaned commits
- Nice use of glyphs in visualization
git restack
- Fixes when a commit is rewritten but dependents weren't updated

Cons:

Only as reliable as information it can gather through hooks (incompatible with git-revise and others)
Assumes hook installs will append to existing hooks

Graphite

Uses refs to track what branches make up a stack

Supports creating PRs for multiple branches in a stack but they don't describe how they do this

Pros:

Has web dashboard
Interactive branch checkout
Direct support for Github PRs
Has "max days behind trunk"
Can run a command on each branch in a stack

Cons:

Has you replace git with gt with a slightly different interface
Requires giving access to a third party
Only supports Github
Sounds like they require user-prefixes for branches

`git-machete`

Pros:

Supports going up and down stacks (go up, go down, go next, go prev, go root)
Quick way to diff a branch on a stack

Cons:

Manually managed branch relationships
- discover to get started
- add to edit the file from the command-line

`git spr`

Cons:

Blackbox: no explanation for how the PRs are stacked or if any relationship data is shown to the user

`ghstack`

Pros:

Authors can upload multiple PRs at once with each PR showing only the commits relevant for it.

Cons:

Not integrated into git workflow (e.g. custom config file, rather than .gitconfig)
Incompatible with fork workflow / requires upstream access
- It manage custom branches
- You must merge from ghstack
Incompatible with host-side merge tools (auto-merge, merge queues, etc) and branch-protections
Leaves behind stale branches in upstream, requiring custom cleanup
Requires Python runtime / virtualenv

`gh-stack`

Pros:

Updates PR summary with other PRs in the stack

Cons:

Requires each commit start with an identifier, grouping by identifier into a PR
- In contrast, git-stack relies on branches (multi-commit PRs) and "fixup" commits (auto-squashing)

`git-ps`

Cons:

Blackbox: no explanation for how they manage the patch/PR relationship
Dependent on Swift support for your platform

Jujutsu

Pros:

When a commit is rewritten, descendants are automatically rebased
Supports undo, including undo of a past operation
Simpler CLI than git (e.g. no "index")
Powerful history-editing features, such as for splitting and squashing commits, for moving parts of a commit to or from its parent, and for editing the contents or commit message of any commit
First-class conflicts means that conflicts won't prevent rebase, and existing conflicts can be rebased or rolled back
Merge commits are correctly rebased, edited, split, etc.

Cons:

The working copy cannot be used with git, you have to use jj instead
Missing functionality such as git blame, git log <path>, git apply
- Can work around it by running the git commands on the underlying Git repository
Working with multiple remotes requires many manual steps to manage branches

Stacked Git

Cons:

I've looked over the docs multiple times and haven't quite "gotten it" for how to use this in a PR workflow.

`git-branchstack`

Cons:

Requires each commit start with an identifier, grouping by identifier into a PR
- In contrast, git-stack relies on branches (multi-commit PRs) and "fixup" commits (auto-squashing)

`git-series`

`git-chain`

Rewrite

Cons:

Requires manually defining a chain