Commands like `new`, `duplicate`, and `abandon` can take multiple revset
arguments which results in their collective union. They take the revisions
directly as arguments. But for consistency with many other commands, they can
also take the `-r` argument, which is a no-op. However, due to the flag being
specified as a `bool`, the `-r` option can only be specified once, so e.g.
`abandon -r x -r y` often fails. I normally use `-r` for consistency and muscle
memory, so this bites me often.
Instead, use `clap::ArgAction::Count` in order to allow `-r` to be specified
multiple times. It remains unused, of course.
With this change, all the following invocations are equivalent. Before this
change, the second example would fail due to giving `-r` multiple times.
jj abandon x y
jj abandon -r x -r y
jj abandon -r 'x | y'
Note: `jj new` already supported this exact case actually, but it used an
awkward trick where it used `.overrides_with()` in order to override *itself* so
it could be specified multiple times. I believe this is a bit clearer.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Change-Id: Ib36cf81d46dae4f698f06d0a32e8fd3120bfb4a4
This makes the summary line more informative. Even though it just duplicates
the message printed later, I think it's easier to follow.
This patch also adjusts some RevsetParseError messages because it seemed
redundant to repeat "revset function", "argument", etc.
Because the CLI error handler now prints error sources in multi-line format,
it doesn't make much sense to render Revset/TemplateParseError differently.
This patch also fixes the source() of the SyntaxError kind. It should be
self.pest_error.source() (= None), not self.pest_error.
I'm going to make TemplateParseError hold RevsetParseError as Box<dyn _>, but
Box<dyn std::error::Error ..> doesn't implement Eq. I could remove Eq from
ErrorKind enums, but it's handly if these enums remain as value types.
This change will also simplify fmt::Display and error::Error impls.
It's common to normalize an empty directory path as ".". This change unblocks
the use of from_relative_path() in edit_sparse().
There are a couple of callers who do to_fs_path(Path::new("")), but they all
translate non-directory paths, which should never be empty.
This can be used to flatten nested "if()"s. It's not exactly the same as "case"
or "switch" expression, but works reasonably well in template. It's not uncommon
to show placeholder text in place of an empty content, and a nullish value
(e.g. empty string, list, option) is usually rendered as an empty text.
A formatted error is not a string containing ANSI escape sequences because 1.
the output may be differently colored inside "hint", 2. the caller might not
be accessible to ui.new_formatter().
We currently include the commits in `parent_mapping` and `abandoned`
in the set of commits to visit when rebasing descendants. The reason
was that we used to update branches and working copies when we visited
these commits. Since we started updating refs after rebasing all
commits, there's no need to even visit these commits.
We only use `new_commits` in `update_heads()`, so let's calculate it
there. It should also be more correct in case other commits were
created after we initialized `DescendantRebaser`.
Now that we only call `update_references()` in one place, there's no
reason to have it also update `heads_to_add` and `heads_to_remove`. By
moving it out of the function, we can consolidate the logic in one
place.
When `rebase_commit_with_options()` decides to abandons a commit, it
records the new parents in the `MutableRepo`, but it's currently the
caller's responsibility to remember to mark it as abandoned. Let's
move that logic into the function to reduce the risk of future bugs.
By adding the abandoned commit's parents to `parent_mapping`, we can
remove a bit more of the special handling of abandoned commitsin
`DescendantRebaser`.
Highlighting "{n}: " will help to follow error sources containing multi-line
messages. I'm going to make revset/template alias errors be formatted as plain
error chain.
In the normal case when we don't abandon a commit because it became
empty, then `CommitBuilder::write()` will have recorded the new commit
as a rewrite of the old commit. We don't need to do that again in
`rebase_one()`.
A subset of the state in `DescendantRebaser` now matches exactly what
`MutableRepo` already stores, so we can avoid copying that state and
have `DescendantRebaser` use it directly instead. Having a single
source of truth for the state will enable further simplifications and
improvements.
I'm going to make `DescendantRebaser` share the state about rewritten
commits with `MutableRepo` next. That means that the call to
`rebase_commit_with_options()` will update that state, which would
make this assertion fail. So let's move it a little earlier to avoid
that.
This is just to match `DescendantRebaser`, to make the next commit a
bit simpler. I think `MutableRepo` still has few enough fields that
just `abandoned` is clear enough. Maybe we'll move the three
rewrite-related fields into a new struct at some point.
With this patch, `MutableRepo` has the same tracking of rewritten
commits as `DescendantRebaser`, so we can simply pass that state into
`DescendantRebaser` when we create it. The next step is to remove the
state from `DescendantRebaser`.
It's inconsistent that some warnings have headings and some don't, and it seems
the choice is arbitrary. Let's unify the style. There are two exceptions:
1. continued line following labeled message,
2. "unrecognized response" followed by prompt.
The lowercase "warning: " is unified to "Warning: " as it is the jj's
convention afaik.
The _default() suffix could be dropped from these methods, but it's probably
better to break the existing codebase for the moment. Otherwise, the caller
might do writeln!(ui.warning(), "Warning: ..").
The existing .hint() method is renamed to .hint_no_heading() to clarify that
it's not the default choice to print a hint. I'll add .hint_default() later,
which will be the shorthand for .hint_with_heading("Hint: ").
This will be used to label "Error: " heading and content differently. I want
to see an error message in the default (white) color because it's easier to
read, but I still want to highlight the "Error: " heading.
We can achieve that without introducing new wrapper, but the resulting code
would look something like "writeln!(ui.error("Error: ")?, ..)?", and it would
get messier if the caller had to suppress io::Error.
