I'm going to split color-words diffs to by_line() and by_word() stages.
Perhaps, Diff::default_refinement() can be removed once all non-test callers
are migrated.
I'm thinking of adding some heuristics to render hunks containing lots of
small word changes differently, in a similar manner to the unified diffs. This
patch might help add some pre/post-processing at consumer.
files::diff() is inlined to caller to get around 'self borrowing.
- add support for copy tracking to `diff --stat`
- switch `--summary` to match git's output more closely
- rework `show_diff_summary` signature to be more consistent
- force each diff command to explicitly enable copy tracking
- enable copy tracking in diff_summary
- post-process for diff iterator
- post-process for diff stream
- update changelog
It's not so important, but this removes duplicated "diff" labels from template
output. Perhaps, this also fixes "diff access-denied" label in file-by-file
external diffs.
The inner show_*() functions no longer add "diff" labels, but that's okay
because all CLI callers (except for the templater) use DiffRenderer.
The width parameter is mandatory so it wouldn't fall back to ui.term_width() by
mistake. The API is getting messy and we might want to extract some parameters
to separate struct.
Fixes#4158
This patch adds TreeDiff template type to host formatting options. The main
reason of this API design is that diff formats have various incompatible
parameters, so a single .diff(files, format[, options..]) method would become
messy pretty quickly. Another reason is that we can probably add custom
summary templating support as diff.files().map(|file| file.path()..).
RepoPathUiConverter is passed to templater explicitly because the one stored
in RevsetParseContext is behind Option<_>.
This will help remove lifetimed &dyn Repo from diff object in templater.
Function arguments are reordered in a way that all show_*() functions have
common parameters in the same order.
This helps migrate internal [u8] variables to BStr.
b"" literals in tests are changed to &str to get around potential type
incompatibility between &[u8; N].
The output looks somewhat similar to color-words diffs. Unified diffs are
verbose, but are easier to follow if adjacent lines are added/removed + modified
for example.
Word-level diffing is forcibly enabled. We can also add a config knob (or
!color condition) to turn it off to save CPU time.
I originally considered disabling highlights in block insertion/deletion, but
that wasn't always great. This can be addressed separately as it also applies
to color-words diffs. #3958
The last hunk could be truncated instead, but the .peekable() version is easier
to follow. If we truncated lines, we would have to adjust line ranges
accordingly.
show_context_after was set once when DiffHunk::Different received, and was
never turned off. This means DiffHunk::Matching is not supposed to repeat.
Under this condition, we can assume that removed/added lines exist if lines
isn't empty.
We don't want e.g. `jj diff --git` to have underlined text because
it's redundant there. This patch fixes that by adding a new `token`
label used only in the color-words diff (for now - it may be used in
git diffs in the future).
This means we could remove the `line_number` label but I left it
because there's little harm in having it and it seems like it can
still be useful.
Thanks to @yuja for noticing and suggesting the fix.
If you want to set a background color on added/removed lines, you
currently get the same style on the line numbers. This patch lets you
specify a different style by overriding it on the line numbers.
Some backends, like the one we have at Google, can restrict access to
certain files. For such files, if they return a regular
`BackendError::ReadObject`, then that will terminate iteration in many
cases (e.g. when diffing or listing files). This patch adds a new
error variant for them to return instead, plus handling of such errors
in diff output and in the working copy.
In order to test the feature, I added a new commit backend that
returns the new `ReadAccessDenied` error when the caller tries to read
certain objects.
I've added a wrapper struct in order to get around too many arguments warning.
It captures &dyn Repo as CommitTemplateLanguage would do. OTOH, &Ui is passed
by argument because the caller might need &mut Ui after the renderer object was
configured.
I've added a struct similar to RevsetWorkspaceContext. It can be a closure,
but we'll need to duplicate format_file_path() function anyway if we add
commit.diff() template.
