| Commit message (Collapse) | Author | Age |
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Problem:
The magic globals `it`, `describe`, etc., are more trouble than they are
worth.
- Hooking into `after_each` requires `getfenv()` hacks.
- They confuse luals/emmylua, because the top-level `.luarc.json` isn't
merged with `test/.luarc.json` (apparently a luals limitation?)
- They totally defeat discoverability because the user just has to
"know" about the various magic symbols.
So they harm DX, which means they serve no purpose at all.
Solution:
- Expose the test API from `testutil`, so tests can call `t.it()`,
`t.describe()`, etc., in the conventional way.
- Drop `getfenv()` hacks.
- Drop the `setfenv()` injection in `load_chunk`.
- Drop `test/_meta.lua`.
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vim-patch:9.2.0174: diff: inline word-diffs can be fragmented
Problem: When using 'diffopt=inline:word', lines were excessively
fragmented with punctuation creating separate highlight
blocks, making it harder to read the diffs.
Solution: Added 'diff_refine_inline_word_highlight()' to merge
adjacent diff blocks that are separated by small gaps of
non-word characters (up to 5 bytes by default) (HarshK97).
When using inline:word diff mode, adjacent changed words separated by
punctuation or whitespace are now merged into a single highlight block
if the gap between them contains fewer than 5 non-word characters.
This creates more readable diffs and closely matches GitHub's own diff
display.
closes: vim/vim#19098
https://github.com/vim/vim/commit/42c6686c78d39843f71dba989a8ea59bc6975132
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Problem: 'cursorline' and part of 'statusline' are missing after
:diffput to an empty buffer.
Solution: Make sure the cursor doesn't go beyond the last line after
:diffput (zeertzjq)
related: neovim/neovim#37621
closes: vim/vim#19281
https://github.com/vim/vim/commit/ce1e562fdafa998e577d65a8b0a1b8bc1cbfcf4c
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Problem: Use-after-free in winframe_remove() (henices)
Solution: Set window_layout_locked() inside winframe_remove()
and check that writing diff files is disallowed when the
window layout is locked.
It can happen with a custom diff expression when removing a window:
1. Buffer was removed, so win_frame_remove() is called to remove the
window.
2. win_frame_remove() → frame_new_height() → scroll_to_fraction()
→ diff_check_fill() (checks for filler lines)
3. diff_check_fill() ends up causing a diff_try_update, and because we
are not using internal diff, it has to first write the file to a
buffer using buf_write()
4. buf_write() is called for a buffer that is not contained within a
window, so it first calls aucmd_prepbuf() to create a new temporary
window before writing the buffer and then later calls
aucmd_restbuf(), which restores the previous window layout, calling
winframe_remove() again, which will free the window/frame structure,
eventually freeing stuff that will still be accessed at step 2.
closes: vim/vim#19064
https://github.com/vim/vim/commit/ead1dda74a485ef0470e7252d07c1a36b8cde517
Nvim doesn't have this bug as Nvim uses a floating window as autocommand
window, and removing it doesn't need winframe_remove().
Co-authored-by: Christian Brabandt <cb@256bit.org>
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Problem: defaults: 'diffopt' option value can be improved
Solution: Update diffopt defaults to include "indent-heuristic" and
"inline:char" (Yee Cheng Chin)
The default diff options have not been updated much despite new
functionality having been added to Vim.
- indent-heurstic: This has been enabled by default in Git since
33de716387 in 2017. Given that Vim uses xdiff from Git, it makes sense
to track the default configuration from Git.
- inline:char: This turns on character-wise inline highlighting which is
generally much better than the default inline:simple. It has been
implemented since vim/vim#16881 and we have not seen reports of any issues
with it, and it has received good feedbacks.
closes: vim/vim#18255
https://github.com/vim/vim/commit/976b365305c2e9025813ff3c7fe52f8d927fafc3
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
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Problem: Crash when using inline diff mode
(Ilya Grigoriev)
Solution: Set tp_diffbuf to NULL when skipping a diff block
(Yee Cheng Chin).
Fix an array out of bounds crash when using diffopt+=inline:char when 4
or more buffers are being diff'ed. This happens when one of the blocks
is empty. The inline highlight logic skips using that buffer's block,
but when another buffer is used later and calls diff_read() to merge the
diff blocks together, it could erroneously consider the empty block's
diff info which has not been initialized, leaving to diff numbers that
are invalid. Later on the diff num is used without bounds checking which
leads to the crash.
Fix this by making sure to unset tp_diffbuf to NULL when we skip a
block, so diff_read() will not consider this buffer to be used within
inline diff. Also, add more bounds checking just to be safe.
closes: vim/vim#17805
https://github.com/vim/vim/commit/c8b99e2d139cf72c567892e44939f2719f703fa8
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
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Problem: not possible to anchor specific lines in diff mode
Solution: Add support for the anchoring lines in diff mode using the
'diffanchor' option (Yee Cheng Chin).
Adds support for anchoring specific lines to each other while viewing a
diff. While lines are anchored, they are guaranteed to be aligned to
each other in a diff view, allowing the user to control and inform the
diff algorithm what the desired alignment is. Internally, this is done
by splitting up the buffer at each anchor and run the diff algorithm on
each split section separately, and then merge the results back for a
logically consistent diff result.
To do this, add a new "diffanchors" option that takes a list of
`{address}`, and a new "diffopt" option value "anchor". Each address
specified will be an anchor, and the user can choose to use any type of
address, including marks, line numbers, or pattern search. Anchors are
sorted by line number in each file, and it's possible to have multiple
anchors on the same line (this is useful when doing multi-buffer diff).
Update documentation to provide examples.
This is similar to Git diff's `--anchored` flag. Other diff tools like
Meld/Araxis Merge also have similar features (called "synchronization
points" or "synchronization links"). We are not using Git/Xdiff's
`--anchored` implementation here because it has a very limited API
(it requires usage of the Patience algorithm, and can only anchor
unique lines that are the same across both files).
Because the user could anchor anywhere, diff anchors could result in
adjacent diff blocks (one block is directly touching another without a
gap), if there is a change right above the anchor point. We don't want
to merge these diff blocks because we want to line up the change at the
anchor. Adjacent diff blocks were first allowed when linematch was
added, but the existing code had a lot of branched paths where
line-matched diff blocks were handled differently. As a part of this
change, refactor them to have a more unified code path that is
generalized enough to handle adjacent diff blocks correctly and without
needing to carve in exceptions all over the place.
closes: vim/vim#17615
https://github.com/vim/vim/commit/0d9160e11ce4b921adff1e5621dd989ce96fb0f3
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
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Related https://github.com/neovim/neovim/commit/267494151bcc6e4fff7b9b8c80b7a5f42e2aa002
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(#33323)
Problem: inline word diff treats multibyte chars as word char
(after 9.1.1243)
Solution: treat all non-alphanumeric characters as non-word characters
(Yee Cheng Chin)
Previously inline word diff simply used Vim's definition of keyword to
determine what is a word, which leads to multi-byte character classes
such as emojis and CJK (Chinese/Japanese/Korean) characters all
classifying as word characters, leading to entire sentences being
grouped as a single word which does not provide meaningful information
in a diff highlight.
Fix this by treating all non-alphanumeric characters (with class number
above 2) as non-word characters, as there is usually no benefit in using
word diff on them. These include CJK characters, emojis, and also
subscript/superscript numbers. Meanwhile, multi-byte characters like
Cyrillic and Greek letters will still continue to considered as words.
Note that this is slightly inconsistent with how words are defined
elsewhere, as Vim usually considers any character with class >=2 to be
a "word".
related: vim/vim#16881 (diff inline highlight)
closes: vim/vim#17050
https://github.com/vim/vim/commit/9aa120f7ada592ed03b37f4de8ee413c5385f123
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
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Problem: Diff mode's inline highlighting is lackluster. It only
performs a line-by-line comparison, and calculates a single
shortest range within a line that could encompass all the
changes. In lines with multiple changes, or those that span
multiple lines, this approach tends to end up highlighting
much more than necessary.
Solution: Implement new inline highlighting modes by doing per-character
or per-word diff within the diff block, and highlight only the
relevant parts, add "inline:simple" to the defaults (which is
the old behaviour)
This change introduces a new diffopt option "inline:<type>". Setting to
"none" will disable all inline highlighting, "simple" (the default) will
use the old behavior, "char" / "word" will perform a character/word-wise
diff of the texts within each diff block and only highlight the
differences.
The new char/word inline diff only use the internal xdiff, and will
respect diff options such as algorithm choice, icase, and misc iwhite
options. indent-heuristics is always on to perform better sliding.
For character highlight, a post-process of the diff results is first
applied before we show the highlight. This is because a naive diff will
create a result with a lot of small diff chunks and gaps, due to the
repetitive nature of individual characters. The post-process is a
heuristic-based refinement that attempts to merge adjacent diff blocks
if they are separated by a short gap (1-3 characters), and can be
further tuned in the future for better results. This process results in
more characters than necessary being highlighted but overall less visual
noise.
For word highlight, always use first buffer's iskeyword definition.
Otherwise if each buffer has different iskeyword settings we would not
be able to group words properly.
The char/word diffing is always per-diff block, not per line, meaning
that changes that span multiple lines will show up correctly.
Added/removed newlines are not shown by default, but if the user has
'list' set (with "eol" listchar defined), the eol character will be be
highlighted correctly for the specific newline characters.
Also, add a new "DiffTextAdd" highlight group linked to "DiffText" by
default. It allows color schemes to use different colors for texts that
have been added within a line versus modified.
This doesn't interact with linematch perfectly currently. The linematch
feature splits up diff blocks into multiple smaller blocks for better
visual matching, which makes inline highlight less useful especially for
multi-line change (e.g. a line is broken into two lines). This could be
addressed in the future.
As a side change, this also removes the bounds checking introduced to
diff_read() as they were added to mask existing logic bugs that were
properly fixed in vim/vim#16768.
closes: vim/vim#16881
https://github.com/vim/vim/commit/9943d4790e42721a6777da9e12637aa595ba4965
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
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Problem: Vim's diff block merging algorithm when doing a multi-file diff
is buggy when two different diff hunks overlap a single
existing diff block (after v9.1.0743)
Solution: fix a couple bugs in this logic:
1. Fix regression from v9.1.0743 where it's not correctly expanding the
2nd overlap correctly, where it always expands without taking into
account that this was always taken care of when the first overlap
happened. Instead, we should only grow the 2nd overlap if it overhangs
outside the existing diff block, and if we encounter a new overlapping
diff block (due to overlap chaining).
2. When we expand a diff block to match the hunk size on the orig side
(when handling the first overlap), we expand the same amount of lines
in the new side. This is not sound if there exists a second overlap
hunk that we haven't processed yet, and that hunk has different
number of lines in orig/new. Fix this by doing the corresponding
counter adjustment when handling 2nd/3rd/etc overlap by calculating
the difference in lines between orig and new side.
(Yee Cheng Chin)
closes: vim/vim#16768
https://github.com/vim/vim/commit/bc08ceb75572dcac57ef5019f3d0df6e8290c0f9
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
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Problem: v9.1.0743 causes regression with diff mode
Solution: Fix the regression with overlapping regions
closes: vim/vim#16454
https://github.com/vim/vim/commit/01f6509fb2de1627cc4ec2c109cd0aa2e3346d50
Co-authored-by: Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com>
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Before calling "attach" a screen object is just a dummy container for
(row, col) values whose purpose is to be sent as part of the "attach"
function call anyway.
Just create the screen in an attached state directly. Keep the complete
(row, col, options) config together. It is still completely valid to
later detach and re-attach as needed, including to another session.
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Problem: topline might be changed in diff mode unexpectedly
(Jaehwang Jung)
Solution: do not re-calculate topline, when using line() func
in diff mode.
fixes: vim/vim#15812
closes: vim/vim#15950
https://github.com/vim/vim/commit/05a40e07c2f0e41b708c4c75a6aa7d0e7f6201a3
Co-authored-by: Christian Brabandt <cb@256bit.org>
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(#30532)
Problem: diff mode does not handle overlapping diffs correctly
Solution: correct the logic to handle overlapping blocks
(Yukihiro Nakadaira)
Vim merges overlapped diff blocks and it doesn't work expectedly
in some situation.
closes: vim/vim#15735
https://github.com/vim/vim/commit/06fe70c183a53ea97cd42ace490d4fb9fd14f042
Co-authored-by: Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com>
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Problem: incorrect internal diff with an empty file
Solution: Set pointer to NULL, instead of using an empty line file
(Yukihiro Nakadaira)
When using internal diff, empty file is read as one empty line file.
So result differs from external diff.
closes: vim/vim#15719
https://github.com/vim/vim/commit/f1694b439bb175d956b49da620f1253462ec507b
Co-authored-by: Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com>
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Specifically, functions that are run in the context of the test runner
are put in module `test/testutil.lua` while the functions that are run
in the context of the test session are put in
`test/functional/testnvim.lua`.
Closes https://github.com/neovim/neovim/issues/27004.
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Work on https://github.com/neovim/neovim/issues/27004.
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(#27451)
Problem: 'breakindentopt' "min" works incorrectly with 'signcolumn'.
Solution: Use win_col_off() and win_col_off2().
(zeertzjq)
closes: vim/vim#14014
https://github.com/vim/vim/commit/f0a9d65e0a1d693cdfa964aa72de5b93b4cacdea
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This is the command invoked repeatedly to make the changes:
:%s/^\(.*\)|\%(\*\(\d\+\)\)\?$\n\1|\%(\*\(\d\+\)\)\?$/\=submatch(1)..'|*'..(max([str2nr(submatch(2)),1])+max([str2nr(submatch(3)),1]))/g
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Problem: 'breakindent' is not drawn after diff filler lines.
Solution: Correct check for whether 'breakindent' should be drawn.
closes: vim/vim#13624
https://github.com/vim/vim/commit/588f20decebebedba3ad733f4f443a597e9747c3
Cherry-pick Test_diff_with_syntax() change from patch 9.0.1257.
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Most of the messy things when changing a non-current buffer is
not about the buffer, it is about windows. In particular, it is about
`curwin`.
When editing a non-current buffer which is displayed in some other
window in the current tabpage, one such window will be "borrowed" as the
curwin. But this means if two or more non-current windows displayed the buffers,
one of them will be treated differenty. this is not desirable.
In particular, with nvim_buf_set_text, cursor _column_ position was only
corrected for one single window. Two new tests are added: the test
with just one non-current window passes, but the one with two didn't.
Two corresponding such tests were also added for nvim_buf_set_lines.
This already worked correctly on master, but make sure this is
well-tested for future refactors.
Also, nvim_create_buf no longer invokes autocmds just because you happened
to use `scratch=true`. No option value was changed, therefore OptionSet
must not be fired.
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Problem: Line number not displayed when using 'smoothscroll'.
Solution: Adjust condition for showing the line number. (closes vim/vim#12333)
https://github.com/vim/vim/commit/88bb3e0a48f160134bdea98cd2b8bd3af86f9d6f
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Use "0" for 'foldcolumn' when w_p_fdc_save is empty, like how
"manual" is used for 'foldmethod' when w_p_fdm_save is empty.
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Co-authored-by: Lewis Russell <me@lewisr.dev>
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Problem: In diff mode windows may get out of sync. (Gary Johnson)
Solution: Avoid that the other window scrolls for 'cursorbind'.
https://github.com/vim/vim/commit/a315ce1f326b836167ca8b1037dafd93eb8d4d4e
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Avoids using `gui=reverse` on `VertSplit` and makes window separators
look much nicer by default.
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Problem: Diff mode confused by NUL bytes.
Solution: Handle NUL bytes differently. (Christian Brabandt, closes vim/vim#9421,
closes vim/vim#9418)
https://github.com/vim/vim/commit/06f6095623cfcc72da08748c058d13b465652fd4
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Remove a useless test added in #14190
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(#16164)
Problem: Filler lines are incorrect for other window in diff mode after
making a change.
Solution: Copy filler lines from the current window. (closes vim/vim#8809)
https://github.com/vim/vim/commit/841c225b9ef8c5bdf5e02968a0bd62521fff6ca8
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(#15547)
Problem: Filler lines are wrong when changing text in diff mode.
Solution: Don't change the filler lines on every change. Check
scrollbinding when updating the filler lines. (closes vim/vim#8809)
https://github.com/vim/vim/commit/04626c243c47af91c2580eaf23e12286180e0e81
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Problem: CursorLine highlight used while 'cursorline' is off.
Solution: Check 'cursorline' is set. (cloes vim/vim#5017)
https://github.com/vim/vim/commit/49474ca12236776bb56aeb9d39bd6592e28157c7
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filling lines in diff mode.
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Problem: Line numbers below filler lines not always updated.
Solution: Don't break out of the win_line() loop too early. (Christian
Brabandt, closes vim/vim#6294, closes vim/vim#6138)
https://github.com/vim/vim/commit/511feec6f0a9e954f1d7353425fa51232b1a8e88
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Before 6e9ea5adc `win_ins_lines` would return `FAIL` for `i/line_count == 0`.
Handle this by checking it in the outer `if`.
Ref: https://github.com/neovim/neovim/commit/6e9ea5ad#commitcomment-35084669
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confusing (#9816)
Problem: Extending sign and foldcolumn below the text is confusing.
Solution: Let the sign and foldcolumn stop at the last text line, just like
the line number column. Also stop the command line window leader.
(Christian Brabandt)
https://github.com/vim/vim/commit/8ee4c01b8c79a29065c1af05e5d9c0721069765f
Closes https://github.com/neovim/neovim/issues/9613
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Problem: Parsing of 'diffopt' is slightly wrong.
Solution: Fix the parsing and add a test. (Jason Franklin, Christian
Brabandt)
https://github.com/vim/vim/commit/b6fc72851c45a36a370f9516c68508e47b41c4c1
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Problem: Not all white space difference options available.
Solution: Add "iblank", "iwhiteall" and "iwhiteeol" to 'diffopt'.
https://github.com/vim/vim/commit/785fc6567f572b8caefbc89ec29bbd8b801464ae
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Problem: Using an external diff program is slow and inflexible.
Solution: Include the xdiff library. (Christian Brabandt)
Use it by default.
https://github.com/vim/vim/commit/e828b7621cf9065a3582be0c4dd1e0e846e335bf
vim-patch:8.1.0360
vim-patch:8.1.0364
vim-patch:8.1.0366
vim-patch:8.1.0370
vim-patch:8.1.0377
vim-patch:8.1.0378
vim-patch:8.1.0381
vim-patch:8.1.0396
vim-patch:8.1.0432
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