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: #16768
Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: no sanitize check when running linematch
Solution: add sanitize check before applying the linematch algorithm,
similar to diff_find_change() (Jonathon)
closes: #16446
Signed-off-by: Jonathon <jonathonwhite@protonmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: v9.1.0743 causes regression with diff mode
Solution: Fix the regression with overlapping regions
closes: #16454
Signed-off-by: Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: diff feature can be improved
Solution: include the linematch diff alignment algorithm
(Jonathon)
closes: #9661
Signed-off-by: Jonathon <jonathonwhite@protonmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: there are a few typos in the source.
Solution: Correct typos (zeertzjq).
closes: #16026
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
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: #15812closes: #15950
Signed-off-by: Christian Brabandt <cb@256bit.org>
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: #15735
Signed-off-by: Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
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: #15719
Signed-off-by: Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: plines_m_win() does not take into account it's "limit_winheight"
argument for filler lines below the last line of the buffer.
(after v9.1.0280)
Solution: Check window height when "limit_winheight" is TRUE.
(Luuk van Baal)
closes: #14449
Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Wrong doc style for pandoc syntax description,
Test_diff_eob_halfpage() may fail depending on
screen size, using braces in highlight.c when
not necessary
Solution: Fix pandoc documentation, make sure the window
for the test has 7 lines, remove the braces.
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Logic to make sure cursor is in visible part of the screen after
scrolling the text with 'smoothscroll' is scattered, asymmetric
and contains bugs.
Solution: Adjust and create helper function for 'smoothscroll' cursor logic.
(Luuk van Baal)
closes: #14410
Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Support for 'smoothscroll' in (half-)page scrolling
broke backward compatibility and can be made to work better.
(after v9.1.215)
Solution: Restore the previous cursor and end-of-buffer behavior for
half-page scrolling and improve 'smoothscroll' support.
(Luuk van Baal)
fixes: #14338closes: #14377
Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Page-wise scrolling with Ctrl-F/Ctrl-B implements
it's own logic to change the topline and cursor.
In doing so, skipcol is not handled properly for
'smoothscroll', and virtual lines.
Solution: Re-use the logic from Ctrl-E/Ctrl-Y while staying
backward compatible as much as possible.
closes: #14268
Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: CI: Fix MacOS-14 tests (after 9.1.0070)
Solution: Re-enable sound tests by granting Mic access,
disable Test_diff_screen because of buggy MacOS diff
(non GNU version), re-enable Test_term_gettitle()
(Yee Cheng Chin)
macos-14 runner was turned on in #13943, but it had to turn off a few
tests in order for CI to run. Re-enable them and fix the underlying
issues.
* `Test_diff_screen`: The test failure is due to a bug in Apple's diff
utility. Apple introduced a new diff tool based on FreeBSD in macOS 13
and it has buggy behaviors when using unified diff (`-U0`) and the
diff is on the first line of the file. Simply disable this test for
now if we detect Apple diff (instead of the old GNU diff). Can
re-enable this in the future if Apple fixes the issue.
* `Test_play_event` / `Test_play_silent`: GitHub Actions currently has
an issue with playing sound in CI in macos-14 runners. It for some
reason triggers a microphone permission dialog popup which blocks the
CI action (see https://github.com/actions/runner-images/issues/9330).
To fix this, add a temporary step in macos-14 to manually allow
microphone permissions in the runner.
* `Test_term_gettitle`: I could not reproduce the failure, so I just
turned it on and it seems to run just fine. Maybe it's a timing issue
and whatnot but either way that should be fixed when we can reproduce
the issue.
closes: #14032
Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: 'breakindentopt' "min" works incorrectly with 'signcolumn'.
Solution: Use win_col_off() and win_col_off2().
(zeertzjq)
closes: #14014
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Not able to use diff() with 'diffexpr'
(rickhowe, after v9.1.0096)
Solution: Use a default context length of 0, update diff() help text,
add a test for using diff() with 'diffexpr'
(Yegappan Lakshmanan)
closes: #14013
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: diff() function uses 'diffexpr'
(rickhowe)
Solution: Make diff() always use internal diff(), add support for
unified diff context length, sort diff() options in help
(Yegappan Lakshmanan)
fixes: #13989closes: #14010
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Need a diff() Vim script function
Solution: Add the diff() Vim script function using the
xdiff internal diff library, add support for
"unified" and "indices" mode.
(Yegappan Lakshmanan)
fixes: #4241closes: #12321
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: CI: testsuite not run on M1 Mac
Solution: Make it run on gh runners for M1, disable failing tests for
now, until we figure the problem with the failings tests out
(rhysd)
closes: #13943
Signed-off-by: rhysd <lin90162@yahoo.co.jp>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: 'breakindent' is not drawn after diff filler lines.
Solution: Correct check for whether 'breakindent' should be drawn.
closes: #13624
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Cannot scroll up in diff mode with many filler lines and zero
'scrolloff'.
Solution: Invalidate w_cline_row before calling comp_botline().
closes: #13256
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Problem: Scrolling too many lines when 'wrap' and 'diff' are set.
Solution: Only scroll by screenlines for 'diff' when 'wrap' is not set.
(closes#12211)
Problem: CTRL-A does not work properly with the cmdline popup menu.
Solution: Fix issues with CTRL-A. Add more tests for the cmdline popup
menu. Remove TermWait() before VeriryScreenDump(). Refactor the
cmdline popup code. (Yegappan Lakshmanan, closes#9735)
Problem: No tests for clicking in the GUI tabline.
Solution: Add test functions to generate the events. Add tests using the
functions. (Yegappan Lakshmanan, closes#9638)
Problem: It is not easy to use a script-local function for an option.
Solution: recognize s: and <SID> at the start of the expression. (Yegappan
Lakshmanan, closes#9401)
Problem: Filler lines are incorrect for other window in diff mode after
making a change.
Solution: Copy filler lines from the current window. (closes#8809)
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#8809)
Problem: 'cursorline' should not apply to 'breakindent'.
Solution: Make 'cursorline' apply to 'breakindent' and 'showbreak'
consistently. (closes#8684)
Problem: Unified diff fails if actually used.
Solution: Invoke :diffupdate in the test. Fix the check for working external
diff. (Ghjuvan Lacambre, Christian Brabandt, closes#8197)
