jj-interdiff

Compare changes from a revision to the working copy

$ jj interdiff [[-f|--from]] [revset]

$ jj interdiff [[-f|--from]] [from_revset] [[-t|--to]] [to_revset]

$ jj interdiff [[-f|--from]] [from_revset] [[-t|--to]] [to_revset] [filesets]

$ jj interdiff [[-f|--from]] [revset] [[-s|--summary]]

$ jj interdiff [[-f|--from]] [revset] --stat

$ jj interdiff [[-f|--from]] [revset] --git

$ jj interdiff [[-f|--from]] [revset] --color-words

jj interdiff [OPTIONS] <CHANGE1> <CHANGE2>
where CHANGE1 and CHANGE2 are revsets

--color <WHEN>
    Colorize output: always, never, or auto (default)

--config <KEY=<VALUE>>...
    Set configuration options

--diff-mode <MODE>
    Diff algorithm: graph or line

--format <FORMAT>
    Output format

--git
    Produce git-compatible diff output

--no-pager
    Disable pager

--pager <PAGER>
    Use specified pager

--path <PATH>...
    Limit to these paths (repeatable)

--repository <REPO>
    Use non-default repository

--stats
    Show only change statistics

--tool <TOOL>
    External diff tool

jj interdiff is a command in the Jujutsu (jj) version control system, designed to show the differences between two diffs. Jujutsu is a Git-compatible VCS emphasizing usability and performance.

Given two revisions (specified as revsets), it compares the diff from each revision's parents to the revision itself. The output highlights:
• Lines added in the first diff but absent or changed in the second.
• Lines removed from the first diff in the second.
• Modified lines between the diffs.

This is invaluable for code review iterations, e.g., seeing updates to a patch series without full re-review. Output uses a unified diff format with special annotations like + for added, - for removed, and ~ for modified.

Revsets provide flexibility: @ (working copy), branch, root(), or expressions like foo~ (parent of foo). Supports path filtering, stats, git format, and tools.

Ideal for workflows like amending commits or rebasing, revealing precise evolution of changes.

Requires Jujutsu installed and repo initialized. Revsets must resolve to changes with parents; ambiguous revsets error. Not suitable for multi-parent merges.

jj interdiff foo~ foo
Changes added/removed in latest 'foo'.

jj interdiff @- @
Review working copy changes vs previous commit.

jj interdiff --git --path src/ oldrev newrev

Use jj help revsets for syntax. Common: @- (w.d.g. parent), branch(), draft().

Introduced in Jujutsu v0.18.0 (2023). Jujutsu, developed by Martin von Zweigbergk since 2021 at Google, aims for better Git UX with features like built-in revsets and operation logs.

jj diff(1), jj show(1), git diff(1), diff(1)