linux/zsh-autosuggestions
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Degrade gracefully on systems missing zsh/system module

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When using async mode, stale background processes will not be cancelled
when a new one starts. This shouldn't cause any real issues since the
processes should eventually finish and be cleaned up anyway, and
removing the handler with `zle -F` means that stale suggestions should
never be shown.
This commit is contained in:
Eric Freese 2019-06-19 13:35:54 -06:00
parent 112dd3e3c7
commit a437544cc5
2 changed files with 32 additions and 26 deletions
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29
src/async.zsh
View file

@ -3,9 +3,9 @@
# Async #
#--------------------------------------------------------------------#
zmodload zsh/system
_zsh_autosuggest_async_request() {
zmodload zsh/system 2>/dev/null # For `$sysparams`
typeset -g _ZSH_AUTOSUGGEST_ASYNC_FD _ZSH_AUTOSUGGEST_CHILD_PID
# If we've got a pending request, cancel it
@ -14,17 +14,20 @@ _zsh_autosuggest_async_request() {
exec {_ZSH_AUTOSUGGEST_ASYNC_FD}<&-
zle -F $_ZSH_AUTOSUGGEST_ASYNC_FD
# Zsh will make a new process group for the child process only if job
# control is enabled (MONITOR option)
if [[ -o MONITOR ]]; then
# Send the signal to the process group to kill any processes that may
# have been forked by the suggestion strategy
kill -TERM -$_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
else
# Kill just the child process since it wasn't placed in a new process
# group. If the suggestion strategy forked any child processes they may
# be orphaned and left behind.
kill -TERM $_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
# We won't know the pid unless the user has zsh/system module installed
if [[ -n "$_ZSH_AUTOSUGGEST_CHILD_PID" ]]; then
# Zsh will make a new process group for the child process only if job
# control is enabled (MONITOR option)
if [[ -o MONITOR ]]; then
# Send the signal to the process group to kill any processes that may
# have been forked by the suggestion strategy
kill -TERM -$_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
else
# Kill just the child process since it wasn't placed in a new process
# group. If the suggestion strategy forked any child processes they may
# be orphaned and left behind.
kill -TERM $_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
fi
fi
fi

29
zsh-autosuggestions.zsh
View file

@ -726,9 +726,9 @@ _zsh_autosuggest_fetch_suggestion() {
# Async #
#--------------------------------------------------------------------#
zmodload zsh/system
_zsh_autosuggest_async_request() {
zmodload zsh/system 2>/dev/null # For `$sysparams`
typeset -g _ZSH_AUTOSUGGEST_ASYNC_FD _ZSH_AUTOSUGGEST_CHILD_PID
# If we've got a pending request, cancel it
@ -737,17 +737,20 @@ _zsh_autosuggest_async_request() {
exec {_ZSH_AUTOSUGGEST_ASYNC_FD}<&-
zle -F $_ZSH_AUTOSUGGEST_ASYNC_FD
# Zsh will make a new process group for the child process only if job
# control is enabled (MONITOR option)
if [[ -o MONITOR ]]; then
# Send the signal to the process group to kill any processes that may
# have been forked by the suggestion strategy
kill -TERM -$_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
else
# Kill just the child process since it wasn't placed in a new process
# group. If the suggestion strategy forked any child processes they may
# be orphaned and left behind.
kill -TERM $_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
# We won't know the pid unless the user has zsh/system module installed
if [[ -n "$_ZSH_AUTOSUGGEST_CHILD_PID" ]]; then
# Zsh will make a new process group for the child process only if job
# control is enabled (MONITOR option)
if [[ -o MONITOR ]]; then
# Send the signal to the process group to kill any processes that may
# have been forked by the suggestion strategy
kill -TERM -$_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
else
# Kill just the child process since it wasn't placed in a new process
# group. If the suggestion strategy forked any child processes they may
# be orphaned and left behind.
kill -TERM $_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
fi
fi
fi