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Implements sending FocusIn/FocusOut events, as defined at
http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-FocusIn_FocusOut
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* Parse cli arguments before configuration file
Parsing the cli arguments before the configuration file allows `--help`
and `--version` to be used even if the configuration file is broken.
* Add configuration file to command line arguments
This commit adds a new command line flag `--config-file` to override the default
configuration file location. If the specified file is unavailable,
Alacritty will quit instead of generating a fallback. If the specified
file is invalid, i.e. /dev/null, the compiled in defaults will be loaded
instead.
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Ownership of the slave file descriptor is passed to the process::Stdio
structs and will be closed when they are dropped. If the slave fd is
closed explicitly then the next fd that is opened during the same scope
will get silently closed by the Stdio structs when they are dropped.
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Based on option `command` in key binding section in config, e.g.
- { key: N, mods: Control|Shift, command: alacritty }
# or
- {
key: N,
mods: Control|Shift,
command: {
program: "alacritty",
args: ["-e", "vttest"],
}}
specified command will be run in the background on key press. Alacritty
doesn't wait for its result nor block IO.
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Background:
If a shell process exits with children still alive (typically due to the
`disown` shell builtin), POLLHUP will not be sent to the master PTY file
descriptor. This is due to the fact that the disowned process still has
the slave PTY open as its STDIN, STDOUT, and STDERR.
If a disowned process never reads or writes from its file descriptors
(which is often the case for graphical applications), the event loop
will end up blocking on poll()/select() when not handling user input
received over the mio channel. When Alacritty shuts down and joins on the
event loop thread, there can never be any more input on the mio channel -
the main thread is no longer handling user keystrokes from the window. Unless
a disowned process happens to access its slave PTY file descriptors, the
event loop will never get the chance to deetect that it should exit.
This commit extends the `Msg` enum to include an explicit `Shutdown`
message, which ensures a clean shutdown (e.g. closing the 'recording'
file). This allows the select()/poll() call to remain blocking, instead
of needing to periodically check the shutdown state in between
timed-out calls.
Fixes #339
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Any action that results in 0 bytes, such as pasting 0 bytes
from the clipboard hangs the terminal (`pbcopy </dev/null`
followed by ctrl-v), hangs the terminal on both macOS and
Linux. This ensures we never send 0 bytes.
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Closes #556
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Accidentally broke it when refactoring.
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Padding can be configured by using the `padding` field in the config
file, like so:
padding:
x: 2
y: 2
which would result in a 2px padding within each side of the window.
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We previously had a hard-coded value for aligning glyphs within cells.
The font descent is now used, and the offset should be correct by
default.
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Closes #494.
Resolves #529.
Resolves #512.
Resolves #493.
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The two structs are very similar, so there is no reason for them to be
separate. Instead combine them into a single Delta struct, which can be
used to shift a point in a two dimensional plane.
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Add the ability to move glyphs within their cells on a global basis via
an option in the configuration file.
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The changes to metric consumption rendered the size argument
unnecessary, remove it.
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The font metrics function was using freetype metrics in an ineffective
way, improve the use of those metrics and remove the now unnecessary
separate default values for font offset in linux.
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Support is added for setting _NET_WM_PID automatically. This is to
support scripting of the window environment. For example, this makes it
possible to script opening a window with same CWD:
1. Retrieve the current window
2. (new) get PID of window
3. Check if it's Alacritty, find first child (presumably a shell), and
get the child's cwd.
4. Spawn new instance of terminal with cwd.
Unaddressed in this commit is how this will coexist on a Wayland system.
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Adds implementations for TBC (tabulation clear) and HTS (set horizontal
tabstop).
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back_color_erase should not set flags like bold, underline, etc.
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It's not possible with DECCOLM to temporarily set 80 or 132 column mode
since the function is a toggle between the two. Instead, only the
additional affects are run in order to get closer to passing vttest.
vttest will never be perfect due to the column mode issue.
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Resolves #478.
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Also checks hup first since if the terminal is either not readable or
writable there's nothing for Alacritty to do.
Closes #480.
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Quick test (works ~50%) is to press Ctrl+C followed by Ctrl+D.
Reproducible on Arch Linux with OpenGL from NVidia.
Fixes #228
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Signed-off-by: Justin Charette <charetjc@gmail.com>
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The previous format was extremely difficult for a human to parse.
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Since we're emulating xterm, we need to support back_color_erase. If
this is found to cause any issues, please open a ticket on GitHub.
Resolves #85.
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Xterm supports an extension to the CSI command `Erase in Display (ED)`,
under the command number 3. This command is used to clear the scrollback
buffer - e.g. anything not visible on the screen.
Since scrollback is not part of alacritty, the handler for this
command currently does nothing. If at some point scrollback is implemented,
the corresponding `match` arm can be modified to properly handle this.
For an example of a program which uses this command, run the `clear`
command (using ncurses 6.0). In a supported terminal such as
`gnome-terminal`, this will clear anything off of the screen from the
scrollback buffer. Before this change, `alacritty` would generate
an `Unhandled CSI` message.
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This changes the cursor color config to use the `text` and `cursor`
properties instead of the current `foreground` and `background`
properties. The latter names stop making sense when dealing with cursors
like a vertical bar or underscore. In the new system, the block,
underscore, or vertical bar would always take the color of `cursor`, and
the text would take the color of `text` when using a block, or keep its
normal color when using the underscore or vertical bar.
A warning is now emitted on startup when the old form of cursor color
config is used. This will be a hard error in the future.
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Fixes #416. Here's what I think is happening: at short `duration`s, the
VisualBell's [`completed` check](https://github.com/jwilm/alacritty/blob/3ce6e1e4b2924b0d432cbb3e62b4bbef88dd38ff/src/term/mod.rs#L377)
is returning `true` before we've actually had a chance to draw the "normal"
background color. I thought about driving this condition off of whether or not
`intensity` returns 0.0, but we may still miss a draw, I think. Perhaps the best
way to tackle this is to let `completed` lazily reset the VisualBell's
`start_time` (something @jwilm asked about when this feature originally landed),
and to only return `true` when the VisualBell's `start_time` is `None`. This
should effectively delay the final draw until after the VisualBell completes.
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