When opening buffers from a directory that's not under versioning
(or even from a different repository), `git` commands will not work.
This commit temporarily changes the current working directory to that
of the current buffer to make sure the context is right.
I dedicate any and all copyright interest in this software to the
public domain. I make this dedication for the benefit of the public at
large and to the detriment of my heirs and successors. I intend this
dedication to be an overt act of relinquishment in perpetuity of all
present and future rights to this software under copyright law.
This commit implements the -once flag on the `:hook` command, which
automatically removes a hook after it was run, to avoid having to
declare a group and remove it in the hook implementation.
Closes#2277
Some syntax checkers (such as `cppcheck`) like to pass
extra-information using a regular diagnostic line - but with null
coordinates (0:0).
This commit makes the `:lint` command ignore such messages, to prevent
`set-option` from failing when assigning coordinates to `lint_flags`, and to avoid unecessary information in the `*lint-output*` buffer.
According to the Rust language reference[1], a raw string starts with an 'r',
zero or more '#' characters, and a '"', and doesn't close until a '"' is
immediately followed by the matching number of '#' characters.
[1]: https://doc.rust-lang.org/reference/tokens.html#raw-string-literals
In particular, this make gathering a transformed range to a vector
faster because we can use the random access nature of underlying
iterator to get the size to allocate in the vector upfront.
Creating a window potentially runs hooks, which themselves could
trigger shell evaluation, which could handle urgent input events
such as a resize, while waiting for the shell to finish. When that
happens, the client had a temporarily null window as it had already
released its own window.
Fixes#2225
