Closes#5372
Discretionary ligatures (denoted by the OpenType feature tag `dlig`) are
sometimes used by programming fonts (e.g. Iosevka) to provide more
"complex" and uncommon ligatures that may be useful in a programming
context. Unfortunately, this has some nasty side effects with certain
Japanese fallback fonts (#5372) due to perhaps a misaligned understanding
of the OpenType spec[^spec].
The spec details that `dlig` ligatures should only be used to contract
sequences of glyphs together into one glyph, and that it should be used
only for "special effect", **at the user's preference** (emphasis mine).
Indeed, it also suggests that:
> UI suggestion: This feature should be off by default.
All of this, combined with the fact that historical, nowadays unused and
even unintelligible Kanji ligatures are explicitly included as examples
of discretionary ligatures, shows that in the Japanese context at least
that the "level of discretion" is significantly higher than what is found
in programming fonts, where it is more understood to be "opinionated and
uncommon", rather than "obsolete and unreadable".
Furthermore, it appears that a lot of common programming fonts don't even
make use of the `dlig` feature — JetBrains Mono, FiraCode and MonoLisa
lack a `dlig` feature altogether, while Inconsolata seems to only use it
for ligatures that are more commonly found in `liga` or `calt`, such as
the `->` ligature. To a lot of people, then, this change would literally
alter nothing.
Therefore, it's my opinion that we should disable `dlig` by default.
It's arguably not being used correctly in the programming font space
(or at least not in a way that's coherent with other fonts), and it only
provides a marginal benefit while potentially rendering entire sentences
in Japanese (and possibly other languages) unreadable out of the box.
If someone upgrades to tip or 1.2 and then asks "why aren't the ligatures
working anymore", then at least they can always just turn on `dlig` by
themselves.
[^spec]: https://learn.microsoft.com/en-us/typography/opentype/spec/features_ae#tag-dlig
GNU gettext simply is a PITA on certain platforms (i.e. Windows, musl
Linux, etc.) and currently it's not possible to cleanly remove i18n
from the build process, making building Ghostty on the aforementioned
platforms difficult. By providing users with a way to opt-out of the
i18n mechanisms (or opt-in, on platforms where i18n is disabled by
default) we can make sure that people at least have *some* way of
building Ghostty before i18n mechanisms can be integrated neatly.
Fix a bug introduced by #6885
`fixZhLocale` returns locale string literal without copying it into the
buffer, causing the `LANGUAGE` environment variable to be set
incorrectly.
```log
$ LANG="" zig build run
...
debug(os_locale): setting LANGUAGE from preferred languages value=�����.UTF-8:�����.UTF-8:en_US.UTF-8:ja_CN.UTF-8
...
```
We only need properties for things that are bound via the blueprint
files. Otherwise, its kind of just a pain. This fixes a bug where it
wasn't being properly set initially anyways because we didn't trigger
syncAppearance.
Ports global shortcuts.
This is mostly a direct logic copy. The primary difference is I
converted `GlobalShortcuts` to a `GObject` which has a config and dbus
property and emits a trigger signal. Importantly, it's no longer tied or
dependent on the `gio.Application` in any way. The config and dbus
connection are updated as normal properties.
Verified with Valgrind we're clean. Found one memory leak I ported back
to legacy.
Without this, if you create a new tab by clicking on the split button it
will be the focus for any new input. So for example if you create a new
tab and then immediately press the space bar a bunch of new tabs will be
created. Other keypresses will just "disappear". Only by clicking in the
new tab to focus it will keyboard input go to "the right place".
As discussed here https://github.com/ghostty-org/ghostty/discussions/8021
This fixes invalid fish shell syntax.
As an example, run ghostty like so: `XDG_CONFIG_HOME=/tmp ghostty --shell-integration-features=ssh-env --command="/usr/bin/env fish"`. Setting XDG_CONFIG_HOME to /tmp is just to start from the default config.
Before:
```
Welcome to fish, the friendly interactive shell
Type help for instructions on how to use fish
robbiev@neo ~/s/ghostty (fish-shell-ssh)> ssh git@github.com
env: ‘command’: No such file or directory
robbiev@neo ~/s/ghostty (fish-shell-ssh) [127]>
```
After:
```
Welcome to fish, the friendly interactive shell
Type help for instructions on how to use fish
robbiev@neo ~/s/ghostty (fish-shell-ssh)> ssh git@github.com
PTY allocation request failed on channel 0
Hi robbiev! You've successfully authenticated, but GitHub does not provide shell access.
Connection to github.com closed.
robbiev@neo ~/s/ghostty (fish-shell-ssh) [1]>
```
My understanding of the fix follows.
The script is using `command` to make sure it calls the actual ssh binary and not some intermediate shell function with the same name (`man command` explains).
`env` can be useful for fish compat < 3.1, where [the KEY=value syntax was introduced](https://fishshell.com/docs/current/faq.html#how-do-i-set-or-clear-an-environment-variable). However because `command` is a builtin it doesn't work in this case.
So a simple solution is this, requiring fish >= 3.1
```
TERM="$ssh_term" command ssh $ssh_opts $argv
```
An [alternative](https://serverfault.com/questions/164305/how-can-i-set-environment-variable-for-just-one-command-in-fish-shell) for maximum fish compat could be the following:
```
begin
set -lx TERM "$ssh_term"
command ssh $ssh_opts $argv
end
```
According to `man set`, `-l` means local to the block and `-x` means export.
I'm in favour of keeping `command` as it makes the integration more predicable.
The reason I went with the current fix:
- It's easier to understand without knowing fish shell.
- [kat found that fish 3.1 should be widely available](https://github.com/ghostty-org/ghostty/discussions/8021#discussioncomment-13877129).
This ports the same behavior from GTK, mostly. This also fixes a bug
where the limits would be enforced on reload. Instead, we should only
enforce them on the first surface ever.
Ensure the surface has a correct initial size when created. This avoids
a rapid resize event and also the pty reports the correct size for
startup scripts.
This is a departure from macOS and legacy GTK. This has been an issue in
Ghostty for awhile so this is the proper path forward.
This works by deferring Surface initialization until the first resize
event. This MIGHT result in a frame or two not rendering but I haven't
noticed anything visually and having the correct size is far more
important.
