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readme: some further touch-up, plus a correction about in-tree conflicts

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Martin von Zweigbergk 2021-01-19 23:55:33 -08:00
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14
README.md
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@ -40,7 +40,7 @@ just like additional Git worktrees are).
### Written as a library
The repo consists of two main parts: the lib crate and the main (CLI)
The project consists of two main parts: the lib crate and the main (CLI)
crate. Most of the code lives in the lib crate. The lib crate does not print
anything to the terminal. The separate lib crate should make it relatively
straight-forward to add a GUI.
@ -70,7 +70,7 @@ The working copy gets automatically committed when you interact with the
tool. This simplifies both implementation and UX. It also means that the working
copy is frequently backed up.
Any changes to the working copy stays in place when you check out another
Any changes to the working copy stay in place when you check out another
commit. That is different from Git and Mercurial, but I think it's more
intuitive for new users. To replicate the default behavior of Git/Mercurial, use
`jj rebase -r @ -d <destination>` (`@` is a name for the working copy
@ -108,10 +108,12 @@ rebase-like commands to support continue/abort operations. Instead, the rebase
can simply continue and create the desired new DAG shape.
Conflicts get simplified on rebase by removing pairs of matching states in the
"add" and "remove" lists. For example, if B is based on A and then rebased to C,
and then to D, it will be a regular 3-way merge between B, and D with C as base
(no trace of A). This means that you can keep old commits rebased to head
without resolving conflicts, and you still won't have messy recursive conflicts.
"add" and "remove" lists. For example, let's say commit B is based on A and is
rebased to C, where it results in conflicts, which the user leaves
unresolved. If the commit is then rebased to D, it will be a regular 3-way merge
between B and D with A as base (no trace of C). This means that you can keep old
commits rebased to head without resolving conflicts, and you still won't have
messy recursive conflicts.
The conflict handling also results in some Darcs-/Pijul-like properties. For
example, if you rebase a commit and it results in conflicts, and you then back