Today,
bind foo "commandline -f expand-abbr; commandline -i \n"
does not work because this
1. enqueues an expand-abbr readline event
2. "commandline -i" inserts \n
3. processes the expand-abbr readline event
Since there is no abbreviation on the new line, this doesn't do anything.
PR https://github.com/fish-shell/fish-shell/pull/9398 would fix this
particular instance however it does not fix the issue that "commandline -i"
is run before the expand-abbr is processed by the reader. This is harmless
here but there would be a problem if "commandline" tried to read commandline
state that was created by a preceding command.
It's not super clear to me whether the above binding should work as one
would naively expect. That would imply that "commandline" would need to
drain all input events (at least all synthetic ones) from the input queue,
to ensure it sees the current state.
Fortunately the parent commit makes it so if we separate them
bind foo "commandline -f expand-abbr" "commandline -i \n"
both will be separate events and the commandline state will be synced after
each of them. This fixes abbreviation expansion here.
Also, we can now mix readline cmds and shell commands, which makes it shorter.
Most chat programs I found use Shift+Return to insert a newline while plain
Return sends the message. One user reported having only tried Shift+Return
and not knowing about Alt+Return.
No release notes yet because this only works on a very small number of
terminals. Once we enable CSI u, this should work on most modern terminals.
Unless the editor changed to a different file for some reason.
Note that the Kakoune integration uses -always to export the cursor even if
the user temporarily suppressed hooks - possibly a "fish_indent" hook.
One of the things that keep me from using Vi mode is that it doesn't define an
insert-mode shortcut to accept autosuggestions. Let's use Control-N because
that Vim key is the closest equivalent.
Closes#10339
... even if the file hasn't changed. This addresses an oddity in the following
case:
* Shell is started,
* function `foo` is sourced from foo.fish
* foo.fish is *externally* edited and saved
* <Loaded definition of `foo` is now stale, but fish is unaware>
* `funced foo` loads `type -p foo` showing changed definition, user exits
$EDITOR saving no changes (or with $status 0, more generally).
* Stale definition of `foo` remains
If a hostname starts with a dash `-` character, the prompt_hostname function
fails because the `string` function interprets it as an option instead
of an argument.
Inserting Tab or Backspace characters causes weird glitches. Sometimes it's
useful to paste tabs as part of a code block.
Render tabs as "␉" and so on for other ASCII control characters, see
https://unicode-table.com/en/blocks/control-pictures/. This fixes the
width-related glitches.
You can see it in action by inserting some control characters into the
command line:
set chars
for x in (seq 1 0x1F)
set -a chars (printf "%02x\\\\x%02x" $x $x)
end
eval set chars $chars
commandline -i "echo '" $chars
Fixes#6923Fixes#5274Closes#7295
We could extend this approach to display a fallback symbol for every unknown
nonprintable character, not just ASCII control characters.
In future we might want to support tab properly.
Fish functions are great for configuring fish but they don't integrate
seamlessly with the rest of the system. For tasks that can run outside fish,
writing scripts is the natural approach.
To edit my scripts I frequently run
$EDITOR (which my-script)
Would be great to reduce the amount typing for this common case (the names
of editor and scripts are usually short, so that's a lot of typing spent on
the boring part).
Our Alt+o binding opens the file at the cursor in a pager. When the cursor
is in command position, it doesn't do anything (unless the command is actually
a valid file path). Let's make it open the resolved file path in an editor.
In future, we should teach this binding to delegate to "funced" upon seeing
a function instead of a script. I didn't do it yet because funced prints
messages, so it will mess with the commandline rendering if used from
a binding. (The fact that funced encourages overwriting functions that
ship with fish is worrysome. Also I'm not sure why funced doesn't open the
function's source file directly (if not sourced from stdin). Persisting the
function should probably be the default.)
Alternative approach: I think other shells expand "=my-script" to
"/path/to/my-script". That is certainly an option -- if we do that we'd want
to teach fish to complete command names after "=". Since I don't remember
scenarios where I care about the full path of a script beyond opening it in
my editor, I didn't look further into this.
Closes#10266
gpg's --use-embedded-filename is a dangerous option that can cause gpg
to write arbitrary content to arbitrary files.
According to the GnuPG maintainer, this is not an option recommended
for use (https://dev.gnupg.org/T4500). Fish shouldn't encourage users
to supply it.
I've offered https://dev.gnupg.org/T6972 to upstream to make it even
more clear that this option is a bad idea.
While removing it, we might as well also remove
--no-use-embedded-filename, since it is effectively a no-op.
Instead of skipping for non-interactive shells, skip when stdin is not a tty.
This allows the cursor to be set for scripts that use the `read` command.
Fix cases like
eval my-cmd (commandline -o)
complete -C "my-cmd $(commandline -o)"
In both cases, we spuriously evaluate tokens like "(inside-quoted-string)"
as command substitutions. Fix this by escaping the strings. The momentarily
regresses the intended purpose of "eval" -- to expand variables -- but the
next commit will fix that.
We're already moving them, we can remove the awkward dot that hides
them, and while we're doing that remove the useless $USER as well.
Most systems will have only one of these files - it's rare to run a
second package manager (especially for anything more than
bootstrapping a container).
We have a lot of completions that look like
```fish
pip completion --fish 2>/dev/null | source
```
That's *fine*, upstream gives us some support.
However, the scripts they provide change very rarely, usually not even
every release, and so running them again for every shell is extremely
wasteful.
In particular the python tools are very slow, `pip completion --fish`
takes about 180ms on my system with a hot cache, which is quite
noticeable.
So what we do is we run them once, store them in a file in our cache
directory, and then serve from that.
We store the mtime of the command we ran, and compare against that for
future runs. If the mtime differs - so if the command was up or
downgraded, we run it again.
This will move all current cache uses to e.g. ~/.cache/fish/
That's better anyway because it makes it easier to remove.
Also it allows supplying a subdir so you can do `__fish_make_cache_dir
completions`
to get ~/.cache/fish/completions.
If I alias "e" to "emacsclient" it will probably accept the same options.
Let's dereference the alias so we can detect support for passing the cursor
position in more cases.
This does not solve the problem for recursive cases (e.g. alias of another
alias). If we want to handle that we would need cycle detection.
This makes it easier to get *any pager* in the number of places we do.
Unfortunately:
1. It can't just execute the pager because that might block
2. We can't really set the necessary options for less here
so they still need to be set outside.
This
Fixes#10074
by falling back to `cat` in that case. We could also decide to abort
instead of using a non-pager, but for history that's probably fine.
This can be bound like `bind \cl clear-screen`, and is, by default
In contrast to the current way it doesn't need the external `clear`
command that was always awkward.
Also it will clear the screen and first draw the old prompt to remove
flicker.
Then it will immediately trigger a repaint, so the prompt will be overwritten.
This was introduced as a workaround to #7215 - xdg-open's generic path
wouldn't background graphical apps.
This has been fixed a month ago in xdg-open, so we can stop doing it.
The good news is this also allows terminal apps to be used again, so
it
Fixes#10045
This was already supposed to handle `--foo=bar<TAB>` cases, except it
printed the `--foo=` again, causing fish to take that as part of the
token.
See #9538 for a similar thing with __fish_complete_directories.
Fixes#10011
Unfortunately, /var/lib/dpkg/status on recent-ish Debian versions at
least only contains the *installed* packages, rendering this solution
broken.
What we do instead is:
1. Remove a useless newline from each package, so our limit would now
let more full package data sets through
2. Increase the limit by 5x
This yields a completion that runs in ~800ms instead of ~700ms on a
raspberry pi, but gives ~10x the candidates, compared to the old
apt-cache version.
This partially reverts 96deaae7d8
* Simplify and fix `__fish_is_zfs_feature_enabled`
Previously `__fish_is_zfs_feature_enabled` was doing
`<whitespace>$queried_feature<whitespace>` pattern matching which
was skipping the state part expected in the follow-up checking code.
Passing the dataset/snapshot in a `target` argument is pointless. As
none of the existing code attempts to do this plus it is also a
private function (`__` prefix), rename of the argument and removal
of extra text replacement should not be considered a breaking change.
* Changed the `&& \` into `|| return`
* Run `fish_indent`
This gives us the biggest chance that these are *visible* in the
terminal, which allows people to choose something nicer.
It changes two colors - the autosuggestion and the pager
description (i.e. the completion descriptions in the pager).
In a bunch of terminals I've tested these are pretty similar - for the
most part brblack for the suggestions is a bit brighter than 555, and
yellow for the descriptions is less blue
than the original.
We could also make the descriptions brblack, but that's for later.
Technically we are a bit naughty in having a few foreground and
background pairs that might not be visible,
but there's nothing we can do if someone makes white invisible on brblack.
Fixes#9913Fixes#3443
This ran two `test`s a `count` and one `echo`, which is a bit wasteful.
So instead, for the common case where you pass one argument, this will
run one `set -q`.
This can save off ~160 microseconds for each ordinary `cd`, which
speeds it up by a factor of ~2 (so 1000 runs of cd might take 260ms
instead of 550ms).
Ideally the cd function would just be incorporated into the builtin,
but that's a bigger change.
After accidentally running a command that includes a pasted password, I want
to delete command from history. Today we need to recall or type (part of)
that command and type "history delete". Let's maybe add a shortcut to do
this from the history pager.
The current shortcut is Shift+Delete. I don't think that's very discoverable,
maybe we should use Delete instead (but only if the cursor is at the end of
the commandline, otherwise delete a char).
Closes#9454
* docs: Add "Writing your own prompt" doc
* Remove a space from the "output"
* some teensy adjustments
* Address feedback
* envvar one more PWD
* More html warning
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.
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
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)
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\""'
```
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!).
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.
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.
