While it is true that `git switch <remote-branch>` errors to disallow a detached
head without the `-d` option, it is valid to use any starting point (commit or
reference) in conjunction with the `-c` option. Additionally, the starting point
can occur before any option.
This enables the following completions:
* `git switch -c <local-name> <any-branch>`
* `git switch <any-branch> -c <local-name>`
* `git switch -d <any-starting-point>`
* `git switch <any-branch> -d`
The trade-off is this does allow for `git switch <remote-branch>` to be
completed with an error.
Note that this logically reverts 7e3d3cc30f.
This prevents leaking the escape sequence by printing nonsense, and it
also allows disabling cursor setting by just setting the variable to
e.g. empty.
And if we ever added any shapes, it would allow them to be used on new
fish and ignored on old
Fixes#9698
Otherwise this would complete
`git --exec-path=foo`, by running `complete -C"'' --exec-path=foo"`,
which would print "--exec-path=foo", and so it would end as
`git --exec-path=--exec-path=foo` because the "replaces token" bit was
lost.
I'm not sure how to solve it cleanly - maybe an additional option to
`complete`?
Anyway, for now this
Fixes#9538.
* completions/adb: add unroot command
Signed-off-by: NextAlone <12210746+NextAlone@users.noreply.github.com>
* completions/adb: use product and model both to show device
Signed-off-by: NextAlone <12210746+NextAlone@users.noreply.github.com>
---------
Signed-off-by: NextAlone <12210746+NextAlone@users.noreply.github.com>
After deleting a history item with
history delete --exact --case-sensitive the-item
it is still reachable by history search until the shell is restarted.
Let's fix this by saving history after each deletion. The non-exact variants
of "history delete" already do this. I think this was just an oversight
owed to the fact that hardly anyone uses "--exact" (else we would surely
have changed it to not require an explicit "--case-sensitive").
`xbps-query` actually parses `-Rsl` as `-Rs l`, which means that packages
without the letter "l" in their names or descriptions are not included in
`__fish_print_xbps_packages`'s output.
* Improve prompt execution time
* Change status to changes
* Remove grep/awk/sort
* Remove calls to grep/awk/sort
* Don't overwrite user defined colors
* Make look more consistent with git
This removes a weird `ls` call (that just decorates directories), and
makes it behave like normal path completion.
(really, this should be a proper option to complete)
Fixes#9285
Add completions for trash-cli commands:
trash, trash-empty, trash-list, trash-put and trash-restore.
``trash --help`` are used to identify the executable in trash cli completion.
Rewrite completions for meson to expose meson commands with their
options and subcommands. New completions are based on the meson 1.0.
Subcommands were introduced in meson 0.42.0 (August 2017), so new
completions will only work for versions after 0.42.0. At this moment,
even oldstable Debian (buster) has meson 0.49.2 -- which means it is
unlikely someone will be affected.
---------
Co-authored-by: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
This removes a possibility of an infinite loop where something in
__fish_config_interactive triggers a fish_prompt or fish_read event,
which calls __fish_on_interactive which calls
__fish_config_interactive again, ...
Fixes#9564
This wanted to get the default priority, and it ran a thing *at source
time*.
This can lead to a variety of errors and I don't believe it's all that
useful, so we remove it.
This is an additional tool, and this function is executed on source
time so we'd spew errors.
(also remove an ineffective line - it's probably *nicer* with the
read, but that's not what's currently effectively doing anything)
Separate the neovim completions from the vim ones, as their supported
options have diverged considerably.
Some documented options are not yet implemented, these are added but
commented out.
Closes#9535.
---------
Co-authored-by: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
This is an easy win for `git add ` completion time if we have multiple descriptions.
What happened was we did things once per description string, but the
things included a bunch of computation (including multiple `string`
calls and even a `realpath`!). Because these don't change, we can
simply do them once.
And it turns out we can just use a cartesian product:
for d in $desc
printf '%s\t%s\n' $file $d
end
becomes
printf '%s\n' $file\t$desc
I have no idea why `apt-cache --no-generate show` is so slow since it basically
dumps the contents of the cache file located at `/var/lib/dpkg/status`. We are
technically bypassing any waits on the cache lock file so this may produce
incorrect results if the cache is being regenerated in the moment, but that's a
small price to pay and the results are likely confined to simply not generating
comprehensive results.
With this change, we no longer need to truncate results to the first n matches
and we no longer only print packages beginning with the commandline argument
enabling fish's partial completions logic to offer less-perfect suggestions when
no better options are available.
Even though we are generating more usable completions, we still trounce the old
performance by leaps and bounds:
```
Benchmark #1: fish -c "complete -C\"apt install ac\""
Time (mean ± σ): 2.165 s ± 0.033 s [User: 267.0 ms, System: 1932.2 ms]
Range (min … max): 2.136 s … 2.256 s 10 runs
Benchmark #2: build/fish -c "complete -C\"apt install ac\""
Time (mean ± σ): 111.1 ms ± 1.8 ms [User: 38.9 ms, System: 72.9 ms]
Range (min … max): 108.2 ms … 114.9 ms 26 runs
Summary
'build/fish -c "complete -C\"apt install ac\""' ran
19.49 ± 0.44 times faster than 'fish -c "complete -C\"apt install ac\""'
```
I think this should be preferred for all subcommand completions because it
handles typos or subcommands we don't recognize better (`apt foo <TAB>` no
longer suggests subcommands since the subcommand position has been taken).
- Added phx completions. These are very common completions for the Elixir Phoenix Framework.
Documentation can be found here: https://hexdocs.pm/phoenix/1.7.0-rc.2/Mix.Tasks.Local.Phx.html#content
- Added argument completions
- Made all descriptions start with an uppercase for better consistency
- Update CHANGELOG.rst
That commit did way too many things, making it hard to see the 5 regressions
it introduced. Let's revert it and its stragglers. In future, we could redo
some of the changes.
Reverts changes to share/completions/git.fish from
- 3548aae55 (completions/git: Don't leak submodule subcommands, 2023-01-23)
- 905f788b3 (completions/git: Remove awkward newline symbol, 2023-01-10)
- 2da1a4ae7 (completions/git: Fix git-foo commands, 2023-01-09)
- e9bf8b9a4 (Run fish_indent on share/completions/*.fish, 2022-12-08)
- d31847b1d (Fix apparent dyslexia, 2022-11-12)
- 054d0ac0e (git completions: undo mistaken `set -f` usage, 2022-10-28)
- f5711ad5e (git.fish: collapse repeat complete cmds, set -f, rm unneeded funcs, 2022-10-27)
Bracketed paste adds one undo entry unless the pasted text contains a '
or \. This is because the "paste" bind-mode has bindings for those keys,
so they effectively start a new undo entry.
Let's fix this by adding an explicit undo group (our first use of this
feature!).
As pointed out by faho, the completions will be deduplicated by the completion
mechanics. We don't use this list directly except to pass it up the chain to the
shell, so there's no benefit to shelling out to eagerly deduplicate the list.
Plus, as of 3.6.0, even manual `complete -C"..."` invocations now deduplicate
results the same as if completions were triggered.
`fail2ban-client` uses nested subcommand syntax and intermixes fixed/enumerable
values with dynamically detected ones. If you know exactly what your overall
command structure looks like, these completions will work great. Unfortunately
their discoverability is a bit lacking, but that's not really fish's fault.
e.g.
* `f2b-c get/set` take certain known values but also accepts a dynamic jail name
* `f2b-c get/set <jail>` take certain fixed options but...
* `f2b-c get/set <jail> action` require enumerating an entirely different set
of values to generate the list of completions, bringing us to...
* `f2b-c get <jail> action <action>` has a fixed number of options but
* `f2b-c set <jail> action <action> <property>` can be any valid command and its
arguments
The intermixing of fixed, enumerable, and free-form inputs in a single command
line is enough to make one's head spin!
Similar to when we changed the color to the default mode-prompt.
I didn't notice that because my prompt uses $fish_color_error here, so
I reused the same color.
macOS 11+ (possibly 12+) has an additional place where certain
applications will be installed, `/System/Applications`. This is a sealed
system volume and includes the following applications:
- `App Store.app`
- `Automator.app`
- `Books.app`
- `Calculator.app`
- `Calendar.app`
- `Chess.app`
- `Clock.app`
- `Contacts.app`
- `Dictionary.app`
- `FaceTime.app`
- `FindMy.app`
- `Font Book.app`
- `Freeform.app`
- `Home.app`
- `Image Capture.app`
- `Launchpad.app`
- `Mail.app`
- `Maps.app`
- `Messages.app`
- `Mission Control.app`
- `Music.app`
- `News.app`
- `Notes.app`
- `Photo Booth.app`
- `Photos.app`
- `Podcasts.app`
- `Preview.app`
- `QuickTime Player.app`
- `Reminders.app`
- `Shortcuts.app`
- `Siri.app`
- `Stickies.app`
- `Stocks.app`
- `System Settings.app`
- `TextEdit.app`
- `Time Machine.app`
- `TV.app`
- `Utilities`
- `VoiceMemos.app`
- `Weather.app`
The change here adds `/System/Applications` to the search locations for
`-a` and `-b` options on the macOS completions for `open`. There are
possibly other locations that may be considered (I’m not using `mdls` or
`mdfind` in my functions for "reasons"), but this is partially based on
https://github.com/halostatue/fish-macos/blob/main/functions/__macos_app_find.fish
Since the new expanded abbreviations in 3.6.0, abbr no longer accepts
new universal variables. That means this tab is now
non-functional (except that it could technically remove abbrs that
were set in universal variables).
Because making it work with the expanded abbreviations requires some
awkwardness like a dedicated conf.d snippet (or writing into
config.fish!), we simply remove it.
Konsole draws ⏎ with a width of 2, but widechar_width says it's 1.
That leads to awkward display.
It's also a surprising and distracting symbol in this use.
So just use spaces.
This used the naive `__fish_seen_subcommand_from`, which isn't
powerful enough once you allow for `conda create` and `conda env
create`.
Hattip to jvanheugten for the env completions.
Fixes#9452
On macOS, fish_git_prompt was failing to correctly handle the case where
another git was installed, e.g. /usr/local/bin/git from Homebrew.
Disable the workarounds in that case.
a lynx-internal hash of div.contents collided with em>a which caused
built-in styling to render much of entire pages as emphasized links.
Since switching from doxygen, we haven't had a <div class="contents">
so this workaround is no longer needed.
Our macOS workarounds involve running "xcrun" to check if Git is installed.
On a freshly upgraded Ventura system that does not have XCode or
CommandLineTools installed, "xcrun" will print this error:
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
on every prompt. Let's silence this error.
These four completions all have a strange pattern (that doesn't
work.)
set -l subcommands cmd1 cmd2 cmd3 ...
complete -n "__fish_use_subcommand $subcommands" -c foo -a cmd1
complete -n "__fish_use_subcommand $subcommands" -c foo -a cmd2
complete -n "__fish_use_subcommand $subcommands" -c foo -a cmd3
Remove the redundant lists of subcommands and the unused argument
passed to __fish_use_subcommand for bosh, cf, mariner, and port.
- fix complete condition
- add short flag
the conditions are not include short flags currently.
and conditions are not right, causing the complete to not work as expected.
The `git` can already have finished here, leading to "disown: There
are no suitable jobs". This has caused a failure on Github Actions.
So we do $last_pid and silence all output, like we do in other spots
macOS ships with a stub `/usr/bin/python3` which by default opens a
dialog to install the command line tools. As we run `python3` initially
at launch, this causes the dialog to appear on first run of fish, if the
command line tools are not installed.
Fix this by detecting the case of `/usr/bin/python3` on Darwin without
the command line tools installed, and do not offer that as a viable
python.
git on macOS has two hazards:
1. It comes "preinstalled" as a stub which pops a dialog to install
command line developer tools.
2. It may populate the xcrun cache when run for the first time, which
may take several seconds.
We fix these as follows, both fixes limited to Darwin:
1. If git is `/usr/bin/git` and `xcode-select --print-path` fails,
then do not run git automatically.
2. Second, if there is no file at `xcrun --show-cache-path`, we take it
as an indication that the cache is not yet populated. In this case we
run `git` in the background to populate the cache.
Credit to @floam for the idea.
Fixes#9343. Fixes#6625.
I often hit Shift-Return accidentally, which makes my terminal echo a
weird escape sequence. Traditionally, terminals interpret Shift-Return
as Return, so let's follow that behavior. Analoguous to commit 1dc526884
(Bind Shift+Space CSI u sequence to Space, 2022-04-24).
Went by the docs at https://yarnpkg.com/cli/install.
Anything not in the sidebar was removed.
(also rename "upgrade" to "up" because that's a great idea)
See #9375.
Enhances abbreviations with extra features
- global abbreviations
- trigger on regex match as alternative to literal match
- the ability to expand abbreviations with a user-defined function
- the ability to set cursor position after expansion
Prior to this change, abbreviations were stored as fish variables, often
universal. However we intend to add additional features to abbreviations
which would be very awkward to shoe-horn into variables.
Re-implement abbreviations using a builtin, managing them internally.
Existing abbreviations stored in universal variables are still imported,
for compatibility. However new abbreviations will need to be added to a
function. A follow-up commit will add it.
Now that abbr is a built-in, remove the abbr function; but leave the
abbr.fish file so that stale files from past installs do not override
the abbr builtin.
scp completions use "ls" to list files on the remote host. If a user aliases
them (in noninteractive shells) this will break. In general, this is the
users fault but also kind of ours because we shouldn't really use "ls" here.
Let's work around this problem by skipping functions.
Fixes#9363
Implement completion for vim tags from any place within the source tree.
To prevent freezes on a huge tags file (e.g., on one from the Linux
kernel source tree), amount of completion lines is limited to 10000.
Note that the TAGS file (EMACS-compatible tags file) is not searched
here as it would not be used by vim anyway.
flatpak completions gate some features behind checks like
test $flatpakversion -gt 1.2
which does a floating point comparison, which is different
from version comparison.
Most of these version checks are irrelevant anyway because they check for
a version that's not even in Debian oldstable. The only one that might be
relevant is a check for version 1.5 but that only gates some extra subcommands;
there's little harm in providing them too.
So let's just remove the version check.
Hopefully fixes#9341 (untested)
Note that flatpak upstream provides a completion file too - but it's shadowed
by ours on my system. This is a tricky issue for another day.
Previously an environment variable to redefine would only be suggested if you
had not yet started typing one out. This makes it so that `env C<TAB>` will also
complete to, for example, [ `CC=`, `CXXFLAGS=`, ... ].
It also is smarter when suggesting variable names to complete: if a variable has
already been completed, it isn't suggested again. Additionally, it only suggests
names for variables that are exported, not all variables (the previous list was
insanely long and including things like all our `fish_...` variables).
Update completions for the tree command. There are a lot of new options
were added since the 1.6.0 release (which apparently was used to create
current completions).
Options are also reordered to follow the "tree" help.
Introduced with 3.6.0 `fish_cursor_selection_mode` variable breaks
existing vi bindings (for example, input sequence `abc<Esc>0vd` doesn't
delete the `a` character as would be expected).
This patch fixes it by switching `fish_cursor_selection_mode` to
`inclusive` and back.
When this was introduced, we used fish_indent --ansi to format
the output of `builtin functions` for color output in `type`, etc.
We don't anymore.
Today it's not a potential showstopper if one launches a fish
session with a five year-old fish_indent in $PATH. We need not
go to lengths to try to make sure we run whatever is in the
build dir adjacent to the `fish` binary.
Adds a few options I see in my git manpage that were omitted:
-v, -h, -P, --config-env, --no-optional-locks, --list-cmds
Reword most general option descriptions
Simple way to make the apt completions spew:
function apt; end
on a system without an apt command installed. (even if it isn't
Darwin, because this uses test combiners!)
This is a thing some people do to avoid learning other package managers.
(of course our completions would probably be *wrong* still, but at least they
won't spew a `test` error)
The 'str' variable was apparently mistakenly removed by 49c5f96470.
Re-add it, and regex-escape it as well.
Allow completing on apropos <TAB> instaed of requiring an initial char.
Use __fish_apropos instead of apropos.
New regex to hopefully work on more platforms.
Explicitly use ^ instead of adding it at __fish_apropos
None of these __functions defined in completions are used or
referenced anywhere.
Found with:
function unused -a file search -d 'find unused functions'
set -f (string replace -fr '^[\s]*function ([\w_]+).*' '$1' < $file)
for cmd in $cmds
printf %d\ %s\n (grep -r ".*$cmd.*" $search < $argv | count) $cmd
end | string match '1 *'
end
for file in share/*/*.fish
unused $file share && printf "in %s\n" $file
end
Get rid of functions:
__fish_git_diff_opt,
__fish__git_append_letters_nosep,
__fish_git_sort_keys
Use `set -f` inside blocks instead of `set -l foo` before blocks.
Two of these just printed out the argument\tdescription dictionaries
without providing any utility: only used once, just do it inline.
Collapse adjacent lines that look like
complete git -n '(blah)' -l option -d 'option help'
complete git -n '(blah)' -l option -a 'arg1' -d 'description 1'
complete git -n '(blah)' -l option -a 'arg2' -d 'description 2'
complete git -n '(blah)' -l option -a 'arg2' -d 'description 3'
...
into
complete git -n '(blah)' -l option -d 'option help' -a "
arg1\t'description 1'
arg2\t'description 2'
arg3\t'description 3'
..."
This sped up the source time about 10% by running complete
less.
For security reasons, some terminals require explicit permission from the
user to interpret OSC 52. One of them is [tmux] but that one usually runs
inside another terminal. This means we can usually write directly to the
underlying terminal, bypassing tmux and the need for user configuration.
This only works if the underlying terminal is writable to the fish user,
which may not be the case if we switched user. For this reason, keep writing
to stdout as well, which should work fine if tmux is configured correctly.
[tmux]: https://github.com/tmux/tmux/wiki/Clipboard
When running inside SSH, Control-X runs a clipboard utility on the remote
system. For pbcopy (and probably clip.exe too) this means that we write to the
remote system's clipboard. This is usually not what the user wants (although
it is consistent with fish_clipboard_paste). When X11 forwarding is used,
xclip/xsel copy to the SSH client's clipboard, which is what most users want.
When we don't have X11 forwarding, we need a different solution. Fortunately,
modern terminal emulators implement the OSC 52 escape sequence for setting
the clipboard of the terminal's system. Use it in fish_clipboard_copy.
Tested in SSH and Docker containers on foot, iTerm2, kitty, tmux and xterm
(this one requires "XTerm.vt100.allowWindowOps: true").
Should also work in GNU screen and Windows Terminal. On terminals that don't
support OSC 52 (like Gnome Terminal or Konsole), it seems to do nothing.
Since there does not seem to be a way to feature-probe OSC 52, let's just
always do both (pbcopy and friends as well as OSC 52). In future, we should
probably stop calling pbpaste and clip.exe, at least on remote systems.
I think there is also an escape sequence to request pasting the system
clipboard but that's less important and less popular, possibly due to
security concerns.
This makes the output a little easier on the eyes.
Tests appear to not need any changes to pass. I always forget whether or not
littlecheck cares about whitespace.
Two different bugs completely broke `trap -p`. First bug broke filtering of
functions with trap handlers (`functions -na` prints functions separated by a
comma, not a new line). Second bug broke showing of function definitions for
traps because a refactor renamed only some call sites but references to `$i`
renamed.
These issues were introduced in a6820cbe and appear to have been caught just in
time: no released version is affected (changes made post-3.5.1).
It's a variable that holds all potential directories. The old name
makes it confusing to look at some of its usage sites and figure out
what is actually going on because they make no sense if $dir is only one
entry.
Don't just save known color values but any values that could have been loaded
from a .theme file.
Also, refactor the theme variable name whitelist/filter in a shared "global"
variable so we never forget to update it at any of the individual use sites.
The documentation states that running `fish_config theme save` after
`fish_config theme choose [theme_name]` will result in "saving" the
currently chosen theme, but this does not match the actual behavior of
`fish_config theme save` which expects a trailing argument specifying
the name of the theme to select/persist.
Given that the documented way has been included in a release and that it
makes more sense than calling `fish_config theme save xxx` when you are
*loading from* xxx and not *saving to* xxx, this patch revises
`fish_config.fish` to support the documented behavior.
When `fish_config theme save xxx` is used, xxx is loaded w/ its specified colors
saved to the according variables in the universal scope. But if `fish_config
theme save` is used without a theme's name specified, then the currently
specified (known) fish color variables are persisted from whatever scope they're
currently in (usually in the global scope from previewing a theme) to universal
variables of the same name.
This does *not* catch color variables unknown to fish! If a theme and a
prompt agree on some variable to hold some color but it's not a color variable
known to fish, it won't be persisted!
Closes#9088.
This makes these tools usable in a pipe.
You can run
```fish
some-long-command | fish_clipboard_copy
```
to copy some command's output to your clipboard, and
```fish
fish_clipboard_paste | some-other-command
```
To feed your clipboard to some command.
In the presence of modified files, assume `git checkout ...` is being
invoked/completed with the intention of restoring modifications. Even if not the
case, this list is likely going to be shortest if someone is about to change
branches.
Afterwards, list branches (with local branches sorted by recency), then remote
unique remotes, heads, tags, and recent commits. The order of these last four
is up for debate, and honestly if any of them generate a lot of results it makes
finding what you're actually looking for in the autocompletions a lot harder.
It may be better to merge these last contenders and sort them by individual
recency instead, but that does make the pager entries rather messy (and we would
need to add a new function to do that in order to interleave them in the desired
sort order but preserve the overall sort after the completions subshell
terminates).
It's really hard to see where -k is applied to git completions, so always group
it with -a to make it more consistent and easier to spot.
There should be no functional changes in this commit.
* Add clojure completions
* More ideomatic fish code
* Clojure completions in separate file
* Aboid use of psb using bb -e
* Return early when bb can not be found
* Remove superflous escape
* Another superflous escape
`describe-future-incompatibilities` is no longer a supported subcommand. It was
also never something very popular so we don't have to worry about older
versions.
[ci skip]
We only erase existing globals for some of the theme-related variables
but not for all the `known_colors`, causing `fish_config` to still emit
warnings for these if saving a theme choice after trying it.
This is made much harder than it has to be by the fact that -k (where specified)
may be in any of a million different places, including as the first parameter,
as -ka, as a random standalone parameter, or tagged on to some other parameter
elsewhere; making it difficult to tell where it's actually missing!
Next job: automate cleaning up the order of arguments in this completions file.
* add adb options
only complete device serial when space after '-s' option
* keep current `adb -s` completion
* add adb reboot fastboot
* only show tcp/ip devices for disconnect
Signed-off-by: Next Alone <12210746+NextAlone@users.noreply.github.com>
* fix: files not complete when options given
Signed-off-by: Next Alone <12210746+NextAlone@users.noreply.github.com>
* fix: use old-style options for adb generic options
Signed-off-by: Next Alone <12210746+NextAlone@users.noreply.github.com>
Signed-off-by: Next Alone <12210746+NextAlone@users.noreply.github.com>
* completion/usbip: use string-match to detect remote (#9250)
* simplify output
Signed-off-by: Next Alone <12210746+NextAlone@users.noreply.github.com>
Signed-off-by: Next Alone <12210746+NextAlone@users.noreply.github.com>
I have about fifty git branches for fish and I almost always `git checkout`
between the most recent two or three - this makes the completions list more
usable. If you're using `git cherry-pick` or `git merge`, etc. you also most
likely to want to reference a recently changed branch.
The decision was made to only sort local branches and not remote ones in the PR
at #9248.
The performance of changing from one `git for-each-ref` invocation to two
separate ones (so we could sort them separately) was checked and found to be OK.
Food for future thought: consider ergonomics, caveats, and performance of
excluding the current branch's name from the list of completions (or perhaps
only from the first completion). Or maybe there's another way to have
`for-each-ref` give priority to a different branch while still sorting by
recency?
There are a million existing ways of skinning this cat, but it's a good parallel
to `__fish_seen_argument` to have, in a similar vein to
`__fish_seen_subcommand_from`.
Confirmed on NetBSD: The `ls -o` option groups. I tested `ls -gon` and
it didn't give an error.
It's quite suspect that this one option couldn't be grouped, so I'm
assuming this was a typo.
Commit 09685c3682 tried making the apt
completions faster by doing two things:
1. Introduce a limiting "head"
2. Re-replace our "string" usage with tr
Unfortunately, in doing so it introduced a few issues:
1. The "tr" had a dangling "+" so it cut apart package
descriptions that contained a "+".
This caused e.g. "a C++ library" to generate another completion
candidate, "library".
2. In reusing "tr" it probably reintroduced #8575,
as tr is not 8-bit-clean.
3. It filtered too early, on the raw apt-cache output,
which caused it to fill up with long descriptions.
So e.g. for "texlive" it would only generate 10 completions,
where it should have matched 54 packages.
Because most of the speedup is in the "head" stopping early, we
instead go back to the old string way, but introduce a limiting "head"
after the "sed" (which will have removed everything but the package
name line and the first line of the description)
In my tests this is about ~10% slower than doing head early and using
tr, but it's more correct.
Admittedly I haven't been able to reproduce the 35s scenario that
09685 talks about, but the most likely cause of that is *apt-cache*
being slow - I don't see how string can be that much slower on another
system - and so it will most likely also be fixed by doing head here.
Future possibilities here include:
1. Using "apt-cache search --names-only", which gives a much nicer
format (but only for non-installed packages - the search strings are
apparently ANDed?)
2. Switching to `string split`, possibly using NUL and using `string
split0`?
3. Introducing a `string --null-in` switch so we can get by with one
`string`
4. (multi-threaded execution so the `string`s run in parallel)
`apt-cache` is just so incredibly slow that filtering against the final results
just doesn't cut it. Attempting to match against 'ac.*' (already taking
advantage of changing short search terms into prefix-only matches) would take
35 seconds, all of bottlenecked before the filtering step. This change uses more
of a heuristic to filter `apt-cache` results directly (before additional
filtering) to speed things up.
A variety of different limits from 100 to 5000 were timed and their result sets
compared to see what ended up artificially limiting valid completions vs what
took too long to be considered functional/usable and this is where we ended up.
`gh` doesn't write its errors to stderr and doesn't exit with a non-zero status
code in case of failure. The completions are short enough that buffering them
isn't a huge deal.
This cuts down `__fish_git_using_command` calls from 75 to 68, saving
some time in the common case.
(it would be possible to remove the check from
`__fish_git_stash_using_command` now, but that's brittle and it's one
call, so it's not a big issue)
