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Refactor async mode to no longer use zpty

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See technique used in `fast-syntax-highlighting`:
- https://github.com/zdharma/fast-syntax-highlighting/commit/ca2e18bbc9e27b9264206c257d2ab68838162c70
- http://www.zsh.org/mla/users/2018/msg00424.html

Also see http://www.zsh.org/mla/users/2018/msg00432.html

In async response handler:
- We only want to read data in case of POLLIN or POLLHUP. Not POLLNVAL
  or select error.
- We always want to remove the handler, so it doesn't get called in an
  infinite loop when error is nval or err.

There is an upstream bug that prevents ctrl-c from resetting the prompt
immediately after a suggestion has been fetched asynchronously. A patch
has been submitted, but a workaround for now is to add `command true`
after the exec.

See https://github.com/zsh-users/zsh-autosuggestions/issues/364
This commit is contained in:
Eric Freese
2019-04-09 14:45:22 -06:00
parent a5dc4a8db4
commit e405afab29
11 changed files with 116 additions and 321 deletions
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README.md
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@@ -67,7 +67,7 @@ This can be useful when pasting large amount of text in the terminal, to avoid t
### Enable Asynchronous Mode
As of `v0.4.0`, suggestions can be fetched asynchronously using the `zsh/zpty` module. To enable this behavior, set the `ZSH_AUTOSUGGEST_USE_ASYNC` variable (it can be set to anything).
As of `v0.4.0`, suggestions can be fetched asynchronously. To enable this behavior, set the `ZSH_AUTOSUGGEST_USE_ASYNC` variable (it can be set to anything).
### Key Bindings