mirror of
https://github.com/zsh-users/zsh-autosuggestions.git
synced 2024-09-12 05:31:17 +02:00
First pass at async functionality
This commit is contained in:
Eric Freese
parent
debbffc79a
commit
ab8f295225
9 changed files with 191 additions and 55 deletions
4
Makefile
4
Makefile
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@ -2,13 +2,15 @@ SRC_DIR := ./src
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VENDOR_DIR := ./vendor
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SRC_FILES := \
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$(SRC_DIR)/setup.zsh \
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$(SRC_DIR)/config.zsh \
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$(SRC_DIR)/util.zsh \
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$(SRC_DIR)/deprecated.zsh \
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$(SRC_DIR)/bind.zsh \
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$(SRC_DIR)/highlight.zsh \
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$(SRC_DIR)/widgets.zsh \
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$(SRC_DIR)/suggestion.zsh \
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$(SRC_DIR)/strategies/*.zsh \
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$(SRC_DIR)/async.zsh \
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$(SRC_DIR)/start.zsh
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HEADER_FILES := \
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53
src/async.zsh
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53
src/async.zsh
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@ -0,0 +1,53 @@
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#--------------------------------------------------------------------#
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# Async #
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#--------------------------------------------------------------------#
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_zsh_autosuggest_async_fetch_suggestion() {
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local strategy_function="_zsh_autosuggest_strategy_$ZSH_AUTOSUGGEST_STRATEGY"
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local prefix="$(_zsh_autosuggest_escape_command "$1")"
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# Send the suggestion command to the pty to fetch a suggestion
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zpty -w -n $ZSH_AUTOSUGGEST_PTY_NAME "$strategy_function '$prefix'"$'\0'
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}
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_zsh_autosuggest_async_suggestion_worker() {
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local last_pid
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while read -d $'\0' cmd; do
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# Kill last bg process
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kill -KILL $last_pid &>/dev/null
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# Run suggestion search in the background
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print -n -- "$(eval "$cmd")"$'\0' &
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# Save the bg process's id so we can kill later
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last_pid=$!
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done
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}
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_zsh_autosuggest_async_suggestion_ready() {
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# while zpty -rt $ZSH_AUTOSUGGEST_PTY_NAME suggestion 2>/dev/null; do
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while read -u $_ZSH_AUTOSUGGEST_PTY_FD -d $'\0' suggestion; do
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zle _autosuggest-show-suggestion "${suggestion//$'\r'$'\n'/$'\n'}"
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done
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}
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# Recreate the pty to get a fresh list of history events
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_zsh_autosuggest_async_recreate_pty() {
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typeset -g _ZSH_AUTOSUGGEST_PTY_FD
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# Kill the old pty
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if [ -n "$_ZSH_AUTOSUGGEST_PTY_FD" ]; then
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zle -F $_ZSH_AUTOSUGGEST_PTY_FD
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zpty -d $ZSH_AUTOSUGGEST_PTY_NAME &>/dev/null
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fi
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# Start a new pty
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typeset -h REPLY
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zpty -b $ZSH_AUTOSUGGEST_PTY_NAME _zsh_autosuggest_async_suggestion_worker
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_ZSH_AUTOSUGGEST_PTY_FD=$REPLY
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zle -F $_ZSH_AUTOSUGGEST_PTY_FD _zsh_autosuggest_async_suggestion_ready
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}
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add-zsh-hook precmd _zsh_autosuggest_async_recreate_pty
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@ -11,6 +11,9 @@ ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE='fg=8'
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# Prefix to use when saving original versions of bound widgets
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ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX=autosuggest-orig-
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# Pty name for calculating autosuggestions asynchronously
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ZSH_AUTOSUGGEST_PTY_NAME=zsh_autosuggest_pty
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ZSH_AUTOSUGGEST_STRATEGY=default
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# Widgets that clear the suggestion
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10
src/setup.zsh
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10
src/setup.zsh
Normal file
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@ -0,0 +1,10 @@
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#--------------------------------------------------------------------#
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# Setup #
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#--------------------------------------------------------------------#
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# Precmd hooks for initializing the library and starting pty's
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autoload -Uz add-zsh-hook
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# Asynchronous suggestions are generated in a pty
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zmodload zsh/zpty
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@ -9,5 +9,4 @@ _zsh_autosuggest_start() {
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_zsh_autosuggest_bind_widgets
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}
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autoload -Uz add-zsh-hook
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add-zsh-hook precmd _zsh_autosuggest_start
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@ -1,21 +0,0 @@
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#--------------------------------------------------------------------#
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# Suggestion #
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#--------------------------------------------------------------------#
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# Delegate to the selected strategy to determine a suggestion
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_zsh_autosuggest_suggestion() {
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local escaped_prefix="$(_zsh_autosuggest_escape_command "$1")"
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local strategy_function="_zsh_autosuggest_strategy_$ZSH_AUTOSUGGEST_STRATEGY"
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if [ -n "$functions[$strategy_function]" ]; then
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echo -E "$($strategy_function "$escaped_prefix")"
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fi
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}
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_zsh_autosuggest_escape_command() {
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setopt localoptions EXTENDED_GLOB
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# Escape special chars in the string (requires EXTENDED_GLOB)
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echo -E "${1//(#m)[\\()\[\]|*?~]/\\$MATCH}"
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}
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11
src/util.zsh
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11
src/util.zsh
Normal file
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@ -0,0 +1,11 @@
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#--------------------------------------------------------------------#
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# Utility Functions #
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#--------------------------------------------------------------------#
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_zsh_autosuggest_escape_command() {
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setopt localoptions EXTENDED_GLOB
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# Escape special chars in the string (requires EXTENDED_GLOB)
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echo -E "${1//(#m)[\"\'\\()\[\]|*?~]/\\$MATCH}"
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}
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@ -19,7 +19,7 @@ _zsh_autosuggest_modify() {
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local orig_buffer="$BUFFER"
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local orig_postdisplay="$POSTDISPLAY"
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# Clear suggestion while original widget runs
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# Clear suggestion while waiting for next one
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unset POSTDISPLAY
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# Original widget may modify the buffer
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@ -33,18 +33,12 @@ _zsh_autosuggest_modify() {
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fi
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# Get a new suggestion if the buffer is not empty after modification
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local suggestion
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if [ $#BUFFER -gt 0 ]; then
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if [ -z "$ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" -o $#BUFFER -lt "$ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" ]; then
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suggestion="$(_zsh_autosuggest_suggestion "$BUFFER")"
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_zsh_autosuggest_async_fetch_suggestion "$BUFFER"
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fi
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fi
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# Add the suggestion to the POSTDISPLAY
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if [ -n "$suggestion" ]; then
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POSTDISPLAY="${suggestion#$BUFFER}"
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fi
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return $retval
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}
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@ -133,3 +127,21 @@ done
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zle -N autosuggest-accept _zsh_autosuggest_widget_accept
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zle -N autosuggest-clear _zsh_autosuggest_widget_clear
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zle -N autosuggest-execute _zsh_autosuggest_widget_execute
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_zsh_autosuggest_show_suggestion() {
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local suggestion=$1
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_zsh_autosuggest_highlight_reset
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if [ -n "$suggestion" ]; then
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POSTDISPLAY="${suggestion#$BUFFER}"
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else
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unset POSTDISPLAY
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fi
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_zsh_autosuggest_highlight_apply
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zle -R
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}
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zle -N _autosuggest-show-suggestion _zsh_autosuggest_show_suggestion
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@ -25,6 +25,16 @@
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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#--------------------------------------------------------------------#
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# Setup #
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#--------------------------------------------------------------------#
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# Precmd hooks for initializing the library and starting pty's
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autoload -Uz add-zsh-hook
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# Asynchronous suggestions are generated in a pty
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zmodload zsh/zpty
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#--------------------------------------------------------------------#
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# Global Configuration Variables #
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#--------------------------------------------------------------------#
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@ -37,6 +47,9 @@ ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE='fg=8'
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# Prefix to use when saving original versions of bound widgets
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ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX=autosuggest-orig-
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# Pty name for calculating autosuggestions asynchronously
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ZSH_AUTOSUGGEST_PTY_NAME=zsh_autosuggest_pty
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ZSH_AUTOSUGGEST_STRATEGY=default
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# Widgets that clear the suggestion
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@ -87,6 +100,17 @@ ZSH_AUTOSUGGEST_IGNORE_WIDGETS=(
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# Max size of buffer to trigger autosuggestion. Leave undefined for no upper bound.
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ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE=
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#--------------------------------------------------------------------#
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# Utility Functions #
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#--------------------------------------------------------------------#
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_zsh_autosuggest_escape_command() {
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setopt localoptions EXTENDED_GLOB
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# Escape special chars in the string (requires EXTENDED_GLOB)
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echo -E "${1//(#m)[\"\'\\()\[\]|*?~]/\\$MATCH}"
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}
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#--------------------------------------------------------------------#
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# Handle Deprecated Variables/Widgets #
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#--------------------------------------------------------------------#
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@ -260,7 +284,7 @@ _zsh_autosuggest_modify() {
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local orig_buffer="$BUFFER"
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local orig_postdisplay="$POSTDISPLAY"
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# Clear suggestion while original widget runs
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# Clear suggestion while waiting for next one
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unset POSTDISPLAY
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# Original widget may modify the buffer
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@ -274,18 +298,12 @@ _zsh_autosuggest_modify() {
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fi
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# Get a new suggestion if the buffer is not empty after modification
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local suggestion
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if [ $#BUFFER -gt 0 ]; then
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if [ -z "$ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" -o $#BUFFER -lt "$ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" ]; then
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suggestion="$(_zsh_autosuggest_suggestion "$BUFFER")"
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_zsh_autosuggest_async_fetch_suggestion "$BUFFER"
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fi
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fi
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# Add the suggestion to the POSTDISPLAY
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if [ -n "$suggestion" ]; then
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POSTDISPLAY="${suggestion#$BUFFER}"
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fi
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return $retval
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}
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@ -375,26 +393,23 @@ zle -N autosuggest-accept _zsh_autosuggest_widget_accept
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zle -N autosuggest-clear _zsh_autosuggest_widget_clear
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zle -N autosuggest-execute _zsh_autosuggest_widget_execute
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#--------------------------------------------------------------------#
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# Suggestion #
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#--------------------------------------------------------------------#
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_zsh_autosuggest_show_suggestion() {
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local suggestion=$1
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# Delegate to the selected strategy to determine a suggestion
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_zsh_autosuggest_suggestion() {
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local escaped_prefix="$(_zsh_autosuggest_escape_command "$1")"
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local strategy_function="_zsh_autosuggest_strategy_$ZSH_AUTOSUGGEST_STRATEGY"
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_zsh_autosuggest_highlight_reset
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if [ -n "$functions[$strategy_function]" ]; then
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echo -E "$($strategy_function "$escaped_prefix")"
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if [ -n "$suggestion" ]; then
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POSTDISPLAY="${suggestion#$BUFFER}"
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else
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unset POSTDISPLAY
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fi
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_zsh_autosuggest_highlight_apply
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zle -R
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}
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_zsh_autosuggest_escape_command() {
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setopt localoptions EXTENDED_GLOB
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# Escape special chars in the string (requires EXTENDED_GLOB)
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echo -E "${1//(#m)[\\()\[\]|*?~]/\\$MATCH}"
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}
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zle -N _autosuggest-show-suggestion _zsh_autosuggest_show_suggestion
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#--------------------------------------------------------------------#
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# Default Suggestion Strategy #
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@ -459,6 +474,59 @@ _zsh_autosuggest_strategy_match_prev_cmd() {
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echo -E "$history[$histkey]"
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}
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#--------------------------------------------------------------------#
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# Async #
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#--------------------------------------------------------------------#
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_zsh_autosuggest_async_fetch_suggestion() {
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local strategy_function="_zsh_autosuggest_strategy_$ZSH_AUTOSUGGEST_STRATEGY"
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local prefix="$(_zsh_autosuggest_escape_command "$1")"
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# Send the suggestion command to the pty to fetch a suggestion
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zpty -w -n $ZSH_AUTOSUGGEST_PTY_NAME "$strategy_function '$prefix'"$'\0'
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}
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_zsh_autosuggest_async_suggestion_worker() {
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local last_pid
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while read -d $'\0' cmd; do
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# Kill last bg process
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kill -KILL $last_pid &>/dev/null
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# Run suggestion search in the background
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print -n -- "$(eval "$cmd")"$'\0' &
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# Save the bg process's id so we can kill later
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last_pid=$!
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done
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}
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_zsh_autosuggest_async_suggestion_ready() {
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# while zpty -rt $ZSH_AUTOSUGGEST_PTY_NAME suggestion 2>/dev/null; do
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while read -u $_ZSH_AUTOSUGGEST_PTY_FD -d $'\0' suggestion; do
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zle _autosuggest-show-suggestion "${suggestion//$'\r'$'\n'/$'\n'}"
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done
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}
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# Recreate the pty to get a fresh list of history events
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_zsh_autosuggest_async_recreate_pty() {
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typeset -g _ZSH_AUTOSUGGEST_PTY_FD
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# Kill the old pty
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if [ -n "$_ZSH_AUTOSUGGEST_PTY_FD" ]; then
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zle -F $_ZSH_AUTOSUGGEST_PTY_FD
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zpty -d $ZSH_AUTOSUGGEST_PTY_NAME &>/dev/null
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fi
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# Start a new pty
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typeset -h REPLY
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zpty -b $ZSH_AUTOSUGGEST_PTY_NAME _zsh_autosuggest_async_suggestion_worker
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_ZSH_AUTOSUGGEST_PTY_FD=$REPLY
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zle -F $_ZSH_AUTOSUGGEST_PTY_FD _zsh_autosuggest_async_suggestion_ready
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}
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add-zsh-hook precmd _zsh_autosuggest_async_recreate_pty
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#--------------------------------------------------------------------#
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# Start #
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#--------------------------------------------------------------------#
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@ -469,5 +537,4 @@ _zsh_autosuggest_start() {
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_zsh_autosuggest_bind_widgets
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}
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autoload -Uz add-zsh-hook
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add-zsh-hook precmd _zsh_autosuggest_start
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