mirror of
https://github.com/zsh-users/zsh-autosuggestions.git
synced 2024-09-19 05:41:15 +02:00
128 lines
2.9 KiB
Bash
Executable file
128 lines
2.9 KiB
Bash
Executable file
#!/usr/bin/env zsh
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# Based on:
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# https://github.com/Valodim/zsh-capture-completion/blob/master/capture.zsh
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# read everything until a line containing the byte 0 is found
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read-to-null() {
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while zpty -r z chunk; do
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[[ $chunk == *$'\0'* ]] && break
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[[ $chunk != $'\1'* ]] && continue # ignore what doesnt start with '1'
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print -n - ${chunk:1}
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done
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}
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accept-connection() {
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zsocket -a $server
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fds[$REPLY]=1
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print "connection accepted, fd: $REPLY" >&2
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}
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handle-request() {
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local connection=$1 current line
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integer read_something=0
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print "request received from fd $connection"
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while read -u $connection prefix &> /dev/null; do
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read_something=1
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# send the prefix to be completed followed by a TAB to force
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# completion
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zpty -w -n z $prefix$'\t'
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zpty -r z chunk &> /dev/null # read empty line before completions
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current=''
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# read completions one by one, storing the longest match
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read-to-null | while IFS= read -r line; do
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(( $#line > $#current )) && current=$line
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done
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# send the longest completion back to the client, strip the last
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# non-printable character
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if (( $#current )); then
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print -u $connection - $prefix$'\2'${current:0:-1}
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else
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print -u $connection ''
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fi
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# clear input buffer
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zpty -w z $'\n'
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break # handle more requests/return to zselect
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done
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if ! (( read_something )); then
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print "connection with fd $connection closed" >&2
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unset fds[$connection]
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exec {connection}>&- # free the file descriptor
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fi
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}
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if [[ -n $ZLE_AUTOSUGGEST_SERVER_LOG ]]; then
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exec >> "$HOME/.autosuggest-server.log"
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else
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exec > /dev/null
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fi
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if [[ -n $ZLE_AUTOSUGGEST_SERVER_LOG_ERRORS ]]; then
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exec 2>> "$HOME/.autosuggest-server-errors.log"
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else
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exec 2> /dev/null
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fi
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exec < /dev/null
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zmodload zsh/zpty
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zmodload zsh/zselect
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zmodload zsh/net/socket
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setopt noglob
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print "autosuggestion server started, pid: $$" >&2
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# Start an interactive zsh connected to a zpty
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zpty z ZLE_DISABLE_AUTOSUGGEST=1 zsh -i
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print 'interactive shell started'
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# Source the init script
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zpty -w z "source '${0:a:h}/completion-server-init.zsh'"
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# wait for ok from shell
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read-to-null &> /dev/null
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print 'interactive shell ready'
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# listen on a socket for completion requests
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server_dir=$1
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pid_file=$2
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socket_path=$3
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cleanup() {
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print 'removing socket and pid file...'
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rm -f $socket_path $pid_file
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print "autosuggestion server stopped, pid: $$"
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exit
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}
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trap cleanup TERM INT HUP EXIT
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mkdir -m 700 $server_dir
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while ! zsocket -l $socket_path; do
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if [[ ! -r $pid_file ]] || ! kill -0 $(<$pid_file); then
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rm -f $socket_path
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else
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exit 1
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fi
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print "will retry listening on '$socket_path'"
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done
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server=$REPLY
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print "server listening on '$socket_path'"
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print $$ > $pid_file
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typeset -A fds ready
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fds[$server]=1
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while zselect -A ready ${(k)fds}; do
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queue=(${(k)ready})
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for fd in $queue; do
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if (( fd == server )); then
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accept-connection
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else
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handle-request $fd
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fi
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done
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done
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