Commit graph

412 commits

Author SHA1 Message Date
Olivier FAURE
e7f0b5801d Add forward-single-char input command
This allows users to add custom keybindings to autocomplete only one
character at a time.

Resolves https://github.com/fish-shell/fish-shell/issues/4984
2020-08-01 12:09:31 +02:00
Olivier FAURE
6778d04aa5 Add or keybind input function 2020-08-01 12:09:31 +02:00
ridiculousfish
81d5a3ea64 Do not add silent mode history items to history
Prior to this fix, if you invoked fish with --private and then used
`read --silent` to read something sensitive, the variable would be
stored in history, with the plain text available through up-arrow.
Fix it to not store items in silent mode.

Note the item was never written to disk; it was only stored in memory.

Fixes #7230
2020-07-30 20:26:01 -07:00
Johannes Altmanninger
b3485d2457 Have the pager use the correct prefix for case-corrected completions
Follow-up to 28d67c8f which only fixed inserting such completions.
2020-07-20 00:38:01 +02:00
Johannes Altmanninger
a61e97a8b9 Fix case-correcting completion stomping token on common prefix
The prefix has already been case-corrected at this point and the remaining
completions are for the suffix only.

Fixes #7211

Introduced in
28d67c8f Show completion list on Tab also if a common prefix was inserted
2020-07-19 23:40:07 +02:00
ridiculousfish
487de1e6c3 Reduce copying in parse_util_detect_errors
Allow parse_util_detect_errors to accept an already-parsed ast. This
eliminates a copy of the source, which is helpful when executing large
scripts.
2020-07-12 16:57:30 -07:00
ridiculousfish
9ee5075fc3 Reformat CPP files 2020-07-12 12:21:25 -07:00
ridiculousfish
2a4c545b21 Rework how signals trigger cancellation
When fish receives a "cancellation inducing" signal (SIGINT in particular)
it has to unwind execution - for example while loops or whatever else that
is executing. There are two ways this may come about:

1. The fish process received the signal
2. A child process received the signal

An example of the second case is:

    some_command | some_function

Here `some_command` is the tty owner and so will receive control-C, but
then fish has to cancel function execution.

Prior to this change, these were handled uniformly: both would just set a
cancellation signal inside the parser. However in the future we will have
multiple parsers and it may not be obvious which one to set the flag in.
So instead distinguish these cases: if a process receives SIGINT we mark
the signal in its job group, and if fish receives it we set a global
variable.
2020-07-12 12:16:01 -07:00
Mahmoud Al-Qudsi
02d0380e6b Make fish_exit workaround for forced exit not SIGHUP-specific 2020-07-05 23:17:21 -05:00
Mahmoud Al-Qudsi
04c6442dcc Allow fish_exit to run even on fish SIGHUP
We were previously aborting the main event loop before calling fish_exit
in the event of a SIGHUP. This patch causes the SIGHUP to be stored in a
separate state variable from a regular "must exit" condition so the
associated event can be fired before we terminate the loop.

All streams are redirected before the event is called to prevent a
SIGTTIN/SIGTTOU due to the user script reading/writing from a disposed
tty.

Closes #7014
2020-07-05 22:18:21 -05:00
Johannes Altmanninger
ada03d3509 Correct pager size when command line soft-wraps
When selectiong a large completion entry in the pager, it would clobber the
prompt. To reproduce, first run this command

	complete -c : -xa '(
		# completion entries that,  when applied to the commandline
		# need one, two, or three lines respectively
		echo 1
		echo 2(string repeat -n (math $COLUMNS - 5) x)
		echo 3(string repeat -n $COLUMNS x)
		printf %s\n n(seq $LINES)
	)'

then type ": " and hit Tab repeatedly. When cycling through completion
entries, observe that fish always tries to render the pager with the same
size, even though the number of lines occupied by the command line buffer
changes due to soft wrapping.

Fix this by rendering the pager after the command line has been rendered, so
we know how many lines we have left.
2020-07-05 08:55:17 +02:00
ridiculousfish
0c22f67bde Remove the old parser bits
Now that everything has been migrated to the new AST, remove as much of
the parse_tree bits as possible
2020-07-04 14:58:05 -07:00
ridiculousfish
0d4f9c6220 Adopt the new AST in abbreviation expansion
This switches abbreviation expansion from parsing with parse_tree to the
new ast.
2020-07-04 14:58:05 -07:00
ridiculousfish
90d8df8128 Use _POSIX_VDISABLE instead of \0 to disable control functions
Prior to this commit, fish used NUL ('\0') to disable control
functions (for example, the function that generates SIGTSTP).
However NUL may in fact be bindable and is on macOS via
control-space.

Use instead _POSIX_VDISABLE if defined and not -1.
2020-07-01 22:33:31 -07:00
Fabian Homborg
77f412af1b fixup! Also clear suggestions
Also #7145.
2020-07-01 21:00:16 +02:00
Fabian Homborg
eb35975c0f Make cancel-commandline actual bind function
This was always awkward as fish script, and had problems with
interrupting the autoloading.

Note that we still leave the old function intact to facilitate easier
upgrading for now.

Fixes #7145.
2020-07-01 20:56:56 +02:00
Johannes Altmanninger
76e0875c8f Apply clang-format 10 and selected lints from "make lint-all" 2020-07-01 00:44:06 +02:00
Johannes Altmanninger
25fe353187 Readline command beginning-of-history visits the oldest search match
Previously it would do the same as end-of-history
2020-07-01 00:40:32 +02:00
Johannes Altmanninger
e5b8035fea Fix updating command line on Page-Down
Page-Down seems to deactivate history search, so trying to undo
would leave the command line in an inconsistent state.

Fixes #7162 which was introduced in
12a9cb29 Fix assertion failure on page up / page down
2020-07-01 00:40:32 +02:00
Johannes Altmanninger
2b3b460264 Make reader_history_search_t::matches a vector instead of a deque
It is used exclusively as vector at the moment since we only ever append
at the end.  Making it a deque would be useful when allowing to edit the
search string and subsequently resume the search at an arbitrary position
in the history.
2020-07-01 00:40:32 +02:00
Johannes Altmanninger
971c2eb668 history search: do not move the cursor after failing backward search
When editing a multiline command line and pressing "up" with the cursor at the
first line, fish attempts a hsitory search. If the search fails, don't move
the cursor to the end of the multiline command because this can be annoying
when the user does not actually want to perform a history search.
2020-07-01 00:40:32 +02:00
Fabian Homborg
149a0b98af Another formatting run
I really kinda hate how insistent clang-format is to have line
breaks *IFF THE LINE IS TOO LONG*.

Like... lemme just add a break if it looks better, will you?

But it is the style at this time, so we shall tie an onion to our
belt.
2020-06-24 20:43:56 +02:00
Fabian Homborg
d0c1f2a2cc Remove duplicated line
Oops.
2020-06-24 18:33:26 +02:00
Fabian Homborg
3d2dc856ab Disable the SUSP character
This makes binding \cz possible.

We already ignore the SIGTSTP signal it sends, so until now it was useless.

(also STOP and START for good measure, but since we disable flow
control in fish anyway these already shouldn't have been sent)

Fixes #7152
2020-06-24 18:26:17 +02:00
Fabian Homborg
7447c8faae Also undo changes to ICRNL and INLCR
These control the disambiguation between ctrl-j and ctrl-m.

This can cause the enter key to send a ctrl-m, which programs might be
unprepared for.

(This is why you need to do `stty sane<ctrl-j>`)
2020-06-20 23:40:37 +02:00
Fabian Homborg
e9e23a8333 Force some terminal modes even for external commands
In #7133, neovim crashing caused "OPOST" to be turned off, which
caused a weird staircase display.

So we just force a set of settings that don't seem useful to change to
avoid breaking the terminal with something like that.

Fixes #7133.
2020-06-19 21:09:08 +02:00
ridiculousfish
c7160d7cb4 Eliminate the termsize handling from common.h
Finish the transition to termsize.h. Remove the scary termsize bits
from common.cpp, which can throw off events at arbitrary calls and are
dangerously reentrant. Migrate everyone to the new termsize.h.
2020-06-07 20:00:42 -07:00
ridiculousfish
6bdbe732e4 Adopt termsize_t in the pager 2020-06-07 20:00:42 -07:00
ridiculousfish
7b486b4634 Factor s_reset better
Prior to this fix, s_reset would attempt to reset the screen, optionally
using the PROMPT_SP hack to go to the next line. This in turn required
passing in the screen width even if it wasn't needed (because we were
not going to abandon the line). Factor this into two functions:

- s_reset_line which does not apply the hack
- s_reset_abandoning_line which applies the PROMPT_SP hack
2020-06-07 20:00:41 -07:00
ridiculousfish
fc42516dfb Unwind some calls to common_get_width from inside screen
common_get_width will "lazily" decide the screen width, which means
changing the environment variable stack. This is a surprising thing
to do from the middle of screen rendering.

Switch to passing in widths explicitly to screen.
2020-06-07 20:00:41 -07:00
Rosen Penev
871a15bf58 [clang-tidy] fix automatic move warning
Found with performance-no-automatic-move

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2020-06-07 12:49:35 -07:00
ridiculousfish
61e948454f Do even less work for empty commands
Inspired by #4829, skip further work when running a command
interactively if that command is empty.
2020-06-06 17:17:22 -07:00
Awal Garg
cb5eb72c6b Skip pre/post exec events for empty commands (#4829) 2020-06-06 16:31:33 -07:00
Fabian Homborg
29754f3540 Keep terminal modes for external commands
This allows tools like `stty` to set the terminal modes and fish will
honor them, for external commands.

The modes for fish are kept as they are.

Until now, the only change fish would do to the external modes is to
disable flow control *every time*, this changes it to only disabling
it on startup.

After that we don't apply *any* changes to the external modes (no
checks or validation or...), because we've never done that (other than
flow control), and it's not been a problem.

Fixes #2315.
2020-05-16 13:04:51 +02:00
Johannes Altmanninger
83c657c010 Fix IO error handling in non-interactive reader
This used to use fread(2) which returns size_t, but read(2) returns
an ssize_t of -1 on error.

Fixes #6990
2020-05-10 22:33:22 +02:00
Rosen Penev
0668513138 Change C casts to C++ ones
Some were kept for compatibility.

Found with -Wold-style-cast

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2020-05-01 13:30:56 -07:00
ridiculousfish
8c4c9d050d Clear cancellation signals after handling a readline command
If a readline command is bound to a key sequence which also sends a
signal, then fish will set the cancel flag in addition to handling the
command. But this cancel flag is then persistent. Ensure it gets cleared
after each command.

Fixes #6937
2020-04-29 13:38:15 -07:00
ridiculousfish
4f103d74fb Do not emit newline when running commands if the cursor is on its own line
If the cursor has been wrapped to the last line, and is the only thing
on that line, do not emit a newline when executing a command.

Fixes #6826
2020-04-28 11:51:46 -07:00
ridiculousfish
520c83cbbf Make screen_reset_mode_t an enum class instead of an enum
Improves type safety.
2020-04-28 11:00:26 -07:00
Per Bothner
a93ee3a4e9
Fire fish_posterror event on tokenization error (#6880)
* Fire fish_postexec event after tokenization error

This is a fix for issue #6816 "shell integration with tokenization error"

* Pass command-line to fish_postexec on tokenization error

* Rename and move event for tokenization error
2020-04-25 09:23:15 +02:00
Johannes Altmanninger
28d67c8f0f Show completion list on Tab also if a common prefix was inserted
Fixes #6924
2020-04-23 20:19:57 +02:00
Johannes Altmanninger
095614ac54 Do not insert a space after completions ending in a comma or dot
For the last 15 years the space was only skipped when the completion
ended in one of "/=@:". Add ".," since they are also sometimes used to
separate independent words within a token.

Fixes #6928
Improves on #6833
2020-04-23 20:11:55 +02:00
Fabian Homborg
02baa321ae Restyle
More of that weird reflowing that clang-format loves to do
2020-04-21 21:11:26 +02:00
Johannes Altmanninger
9f45ff63d3 refactor: use mark_repaint_needed over reader_repaint_needed in reader
Making the reader_data_t member functions consistent, some already used
mark_repaint_needed.
2020-04-19 05:51:25 +02:00
Joel Kuhn
a3dfa21737 Change vi-mode tilde to toggle character case
This updates the behavior of tilde to match the behavior found in vim.
In vim, tilde toggles the case of the character under the cursor and
advances one character. In visual mode, the case of each selected
character is toggled, the cursor position moves to the beginning of
the selection, and the mode is changed to normal. In fish, tilde
capitalizes the current letter and advances one word. There is no
current tilde command for visual mode in fish.

This patch adds the readline commands `togglecase-letter` and
`togglecase-selection` to match the behavior of vim more closely. The
only difference is that in visual mode, the cursor is not modified.
Modifying the cursor in visual mode would require either moving it in
`togglecase-selection`, which seems outside its scope or adding
something like a `move-to-selection-start` readline command.
2020-04-18 14:59:37 +02:00
Johannes Altmanninger
c1b2b6b7da Rename comp_empty to complete_did_insert and fix comments 2020-04-06 23:43:29 +02:00
ridiculousfish
3df05af809 Revert "Do not prevent multiple tab-completions with the same command line"
This reverts commit 41dcf84386.

This seems to have broken a lot of interactive scenarios.
2020-04-05 19:05:53 -07:00
ridiculousfish
41dcf84386 Do not prevent multiple tab-completions with the same command line
The comp_empty variable was assigned a sucecss value, leading fish
to think that the set of completions was empty when it is not.

Fixes #6863
2020-04-05 18:55:28 -07:00
Rosen Penev
194fa4a548 [clang-tidy] performance
Found with performance*

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2020-04-05 10:13:13 +02:00
Rosen Penev
220f0a132d [clang-tidy] use auto when casting
Found with modernize-use-auto

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2020-04-05 10:13:13 +02:00