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Added pure prompt

This commit is contained in:
Andrea 2020-02-10 16:23:56 +01:00
parent 015ea172eb
commit ce1b4c9f5e
6 changed files with 1380 additions and 0 deletions
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6
zsh.d/30-prompt.zsh
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fpath=($0:h/prompts $fpath) fpath=($0:h/prompts $fpath)
fpath+=$0:h/prompts/pure
autoload -U promptinit;promptinit autoload -U promptinit;promptinit
zstyle :prompt:pure:user color blue
zstyle :prompt:pure:host color blue
prompt pure
# vim: set ts=4 sw=4 tw=0 ft=zsh : # vim: set ts=4 sw=4 tw=0 ft=zsh :

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zsh.d/prompts/pure/async Symbolic link
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async.zsh

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zsh.d/prompts/pure/async.zsh Normal file
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#!/usr/bin/env zsh
#
# zsh-async
#
# version: 1.7.2
# author: Mathias Fredriksson
# url: https://github.com/mafredri/zsh-async
#
typeset -g ASYNC_VERSION=1.7.2
# Produce debug output from zsh-async when set to 1.
typeset -g ASYNC_DEBUG=${ASYNC_DEBUG:-0}
# Execute commands that can manipulate the environment inside the async worker. Return output via callback.
_async_eval() {
local ASYNC_JOB_NAME
# Rename job to _async_eval and redirect all eval output to cat running
# in _async_job. Here, stdout and stderr are not separated for
# simplicity, this could be improved in the future.
{
eval "$@"
} &> >(ASYNC_JOB_NAME=[async/eval] _async_job 'cat')
}
# Wrapper for jobs executed by the async worker, gives output in parseable format with execution time
_async_job() {
# Disable xtrace as it would mangle the output.
setopt localoptions noxtrace
# Store start time for job.
float -F duration=$EPOCHREALTIME
# Run the command and capture both stdout (`eval`) and stderr (`cat`) in
# separate subshells. When the command is complete, we grab write lock
# (mutex token) and output everything except stderr inside the command
# block, after the command block has completed, the stdin for `cat` is
# closed, causing stderr to be appended with a $'\0' at the end to mark the
# end of output from this job.
local jobname=${ASYNC_JOB_NAME:-$1}
local stdout stderr ret tok
{
stdout=$(eval "$@")
ret=$?
duration=$(( EPOCHREALTIME - duration )) # Calculate duration.
# Grab mutex lock, stalls until token is available.
read -r -k 1 -p tok || exit 1
# Return output (<job_name> <return_code> <stdout> <duration> <stderr>).
print -r -n - $'\0'${(q)jobname} $ret ${(q)stdout} $duration
} 2> >(stderr=$(cat) && print -r -n - " "${(q)stderr}$'\0')
# Unlock mutex by inserting a token.
print -n -p $tok
}
# The background worker manages all tasks and runs them without interfering with other processes
_async_worker() {
# Reset all options to defaults inside async worker.
emulate -R zsh
# Make sure monitor is unset to avoid printing the
# pids of child processes.
unsetopt monitor
# Redirect stderr to `/dev/null` in case unforseen errors produced by the
# worker. For example: `fork failed: resource temporarily unavailable`.
# Some older versions of zsh might also print malloc errors (know to happen
# on at least zsh 5.0.2 and 5.0.8) likely due to kill signals.
exec 2>/dev/null
# When a zpty is deleted (using -d) all the zpty instances created before
# the one being deleted receive a SIGHUP, unless we catch it, the async
# worker would simply exit (stop working) even though visible in the list
# of zpty's (zpty -L).
TRAPHUP() {
return 0 # Return 0, indicating signal was handled.
}
local -A storage
local unique=0
local notify_parent=0
local parent_pid=0
local coproc_pid=0
local processing=0
local -a zsh_hooks zsh_hook_functions
zsh_hooks=(chpwd periodic precmd preexec zshexit zshaddhistory)
zsh_hook_functions=(${^zsh_hooks}_functions)
unfunction $zsh_hooks &>/dev/null # Deactivate all zsh hooks inside the worker.
unset $zsh_hook_functions # And hooks with registered functions.
unset zsh_hooks zsh_hook_functions # Cleanup.
close_idle_coproc() {
local -a pids
pids=(${${(v)jobstates##*:*:}%\=*})
# If coproc (cat) is the only child running, we close it to avoid
# leaving it running indefinitely and cluttering the process tree.
if (( ! processing )) && [[ $#pids = 1 ]] && [[ $coproc_pid = $pids[1] ]]; then
coproc :
coproc_pid=0
fi
}
child_exit() {
close_idle_coproc
# On older version of zsh (pre 5.2) we notify the parent through a
# SIGWINCH signal because `zpty` did not return a file descriptor (fd)
# prior to that.
if (( notify_parent )); then
# We use SIGWINCH for compatibility with older versions of zsh
# (pre 5.1.1) where other signals (INFO, ALRM, USR1, etc.) could
# cause a deadlock in the shell under certain circumstances.
kill -WINCH $parent_pid
fi
}
# Register a SIGCHLD trap to handle the completion of child processes.
trap child_exit CHLD
# Process option parameters passed to worker
while getopts "np:u" opt; do
case $opt in
n) notify_parent=1;;
p) parent_pid=$OPTARG;;
u) unique=1;;
esac
done
killjobs() {
local tok
local -a pids
pids=(${${(v)jobstates##*:*:}%\=*})
# No need to send SIGHUP if no jobs are running.
(( $#pids == 0 )) && continue
(( $#pids == 1 )) && [[ $coproc_pid = $pids[1] ]] && continue
# Grab lock to prevent half-written output in case a child
# process is in the middle of writing to stdin during kill.
(( coproc_pid )) && read -r -k 1 -p tok
kill -HUP -$$ # Send to entire process group.
coproc : # Quit coproc.
coproc_pid=0 # Reset pid.
}
local request do_eval=0
local -a cmd
while :; do
# Wait for jobs sent by async_job.
read -r -d $'\0' request || {
# Since we handle SIGHUP above (and thus do not know when `zpty -d`)
# occurs, a failure to read probably indicates that stdin has
# closed. This is why we propagate the signal to all children and
# exit manually.
kill -HUP -$$ # Send SIGHUP to all jobs.
exit 0
}
# Check for non-job commands sent to worker
case $request in
_unset_trap) notify_parent=0; continue;;
_killjobs) killjobs; continue;;
_async_eval*) do_eval=1;;
esac
# Parse the request using shell parsing (z) to allow commands
# to be parsed from single strings and multi-args alike.
cmd=("${(z)request}")
# Name of the job (first argument).
local job=$cmd[1]
# If worker should perform unique jobs
if (( unique )); then
# Check if a previous job is still running, if yes, let it finnish
for pid in ${${(v)jobstates##*:*:}%\=*}; do
if [[ ${storage[$job]} == $pid ]]; then
continue 2
fi
done
fi
# Guard against closing coproc from trap before command has started.
processing=1
# Because we close the coproc after the last job has completed, we must
# recreate it when there are no other jobs running.
if (( ! coproc_pid )); then
# Use coproc as a mutex for synchronized output between children.
coproc cat
coproc_pid="$!"
# Insert token into coproc
print -n -p "t"
fi
if (( do_eval )); then
shift cmd # Strip _async_eval from cmd.
_async_eval $cmd
else
# Run job in background, completed jobs are printed to stdout.
_async_job $cmd &
# Store pid because zsh job manager is extremely unflexible (show jobname as non-unique '$job')...
storage[$job]="$!"
fi
processing=0 # Disable guard.
if (( do_eval )); then
do_eval=0
# When there are no active jobs we can't rely on the CHLD trap to
# manage the coproc lifetime.
close_idle_coproc
fi
done
}
#
# Get results from finished jobs and pass it to the to callback function. This is the only way to reliably return the
# job name, return code, output and execution time and with minimal effort.
#
# If the async process buffer becomes corrupt, the callback will be invoked with the first argument being `[async]` (job
# name), non-zero return code and fifth argument describing the error (stderr).
#
# usage:
# async_process_results <worker_name> <callback_function>
#
# callback_function is called with the following parameters:
# $1 = job name, e.g. the function passed to async_job
# $2 = return code
# $3 = resulting stdout from execution
# $4 = execution time, floating point e.g. 2.05 seconds
# $5 = resulting stderr from execution
# $6 = has next result in buffer (0 = buffer empty, 1 = yes)
#
async_process_results() {
setopt localoptions unset noshwordsplit noksharrays noposixidentifiers noposixstrings
local worker=$1
local callback=$2
local caller=$3
local -a items
local null=$'\0' data
integer -l len pos num_processed has_next
typeset -gA ASYNC_PROCESS_BUFFER
# Read output from zpty and parse it if available.
while zpty -r -t $worker data 2>/dev/null; do
ASYNC_PROCESS_BUFFER[$worker]+=$data
len=${#ASYNC_PROCESS_BUFFER[$worker]}
pos=${ASYNC_PROCESS_BUFFER[$worker][(i)$null]} # Get index of NULL-character (delimiter).
# Keep going until we find a NULL-character.
if (( ! len )) || (( pos > len )); then
continue
fi
while (( pos <= len )); do
# Take the content from the beginning, until the NULL-character and
# perform shell parsing (z) and unquoting (Q) as an array (@).
items=("${(@Q)${(z)ASYNC_PROCESS_BUFFER[$worker][1,$pos-1]}}")
# Remove the extracted items from the buffer.
ASYNC_PROCESS_BUFFER[$worker]=${ASYNC_PROCESS_BUFFER[$worker][$pos+1,$len]}
len=${#ASYNC_PROCESS_BUFFER[$worker]}
if (( len > 1 )); then
pos=${ASYNC_PROCESS_BUFFER[$worker][(i)$null]} # Get index of NULL-character (delimiter).
fi
has_next=$(( len != 0 ))
if (( $#items == 5 )); then
items+=($has_next)
$callback "${(@)items}" # Send all parsed items to the callback.
(( num_processed++ ))
elif [[ -z $items ]]; then
# Empty items occur between results due to double-null ($'\0\0')
# caused by commands being both pre and suffixed with null.
else
# In case of corrupt data, invoke callback with *async* as job
# name, non-zero exit status and an error message on stderr.
$callback "[async]" 1 "" 0 "$0:$LINENO: error: bad format, got ${#items} items (${(q)items})" $has_next
fi
done
done
(( num_processed )) && return 0
# Avoid printing exit value when `setopt printexitvalue` is active.`
[[ $caller = trap || $caller = watcher ]] && return 0
# No results were processed
return 1
}
# Watch worker for output
_async_zle_watcher() {
setopt localoptions noshwordsplit
typeset -gA ASYNC_PTYS ASYNC_CALLBACKS
local worker=$ASYNC_PTYS[$1]
local callback=$ASYNC_CALLBACKS[$worker]
if [[ -n $2 ]]; then
# from man zshzle(1):
# `hup' for a disconnect, `nval' for a closed or otherwise
# invalid descriptor, or `err' for any other condition.
# Systems that support only the `select' system call always use
# `err'.
# this has the side effect to unregister the broken file descriptor
async_stop_worker $worker
if [[ -n $callback ]]; then
$callback '[async]' 2 "" 0 "$worker:zle -F $1 returned error $2" 0
fi
return
fi;
if [[ -n $callback ]]; then
async_process_results $worker $callback watcher
fi
}
#
# Start a new asynchronous job on specified worker, assumes the worker is running.
#
# usage:
# async_job <worker_name> <my_function> [<function_params>]
#
async_job() {
setopt localoptions noshwordsplit noksharrays noposixidentifiers noposixstrings
local worker=$1; shift
local -a cmd
cmd=("$@")
if (( $#cmd > 1 )); then
cmd=(${(q)cmd}) # Quote special characters in multi argument commands.
fi
# Quote the cmd in case RC_EXPAND_PARAM is set.
zpty -w $worker "$cmd"$'\0'
}
#
# Evaluate a command (like async_job) inside the async worker, then worker environment can be manipulated. For example,
# issuing a cd command will change the PWD of the worker which will then be inherited by all future async jobs.
#
# Output will be returned via callback, job name will be [async/eval].
#
# usage:
# async_worker_eval <worker_name> <my_function> [<function_params>]
#
async_worker_eval() {
setopt localoptions noshwordsplit noksharrays noposixidentifiers noposixstrings
local worker=$1; shift
local -a cmd
cmd=("$@")
if (( $#cmd > 1 )); then
cmd=(${(q)cmd}) # Quote special characters in multi argument commands.
fi
# Quote the cmd in case RC_EXPAND_PARAM is set.
zpty -w $worker "_async_eval $cmd"$'\0'
}
# This function traps notification signals and calls all registered callbacks
_async_notify_trap() {
setopt localoptions noshwordsplit
local k
for k in ${(k)ASYNC_CALLBACKS}; do
async_process_results $k ${ASYNC_CALLBACKS[$k]} trap
done
}
#
# Register a callback for completed jobs. As soon as a job is finnished, async_process_results will be called with the
# specified callback function. This requires that a worker is initialized with the -n (notify) option.
#
# usage:
# async_register_callback <worker_name> <callback_function>
#
async_register_callback() {
setopt localoptions noshwordsplit nolocaltraps
typeset -gA ASYNC_CALLBACKS
local worker=$1; shift
ASYNC_CALLBACKS[$worker]="$*"
# Enable trap when the ZLE watcher is unavailable, allows
# workers to notify (via -n) when a job is done.
if [[ ! -o interactive ]] || [[ ! -o zle ]]; then
trap '_async_notify_trap' WINCH
fi
}
#
# Unregister the callback for a specific worker.
#
# usage:
# async_unregister_callback <worker_name>
#
async_unregister_callback() {
typeset -gA ASYNC_CALLBACKS
unset "ASYNC_CALLBACKS[$1]"
}
#
# Flush all current jobs running on a worker. This will terminate any and all running processes under the worker, use
# with caution.
#
# usage:
# async_flush_jobs <worker_name>
#
async_flush_jobs() {
setopt localoptions noshwordsplit
local worker=$1; shift
# Check if the worker exists
zpty -t $worker &>/dev/null || return 1
# Send kill command to worker
async_job $worker "_killjobs"
# Clear the zpty buffer.
local junk
if zpty -r -t $worker junk '*'; then
(( ASYNC_DEBUG )) && print -n "async_flush_jobs $worker: ${(V)junk}"
while zpty -r -t $worker junk '*'; do
(( ASYNC_DEBUG )) && print -n "${(V)junk}"
done
(( ASYNC_DEBUG )) && print
fi
# Finally, clear the process buffer in case of partially parsed responses.
typeset -gA ASYNC_PROCESS_BUFFER
unset "ASYNC_PROCESS_BUFFER[$worker]"
}
#
# Start a new async worker with optional parameters, a worker can be told to only run unique tasks and to notify a
# process when tasks are complete.
#
# usage:
# async_start_worker <worker_name> [-u] [-n] [-p <pid>]
#
# opts:
# -u unique (only unique job names can run)
# -n notify through SIGWINCH signal
# -p pid to notify (defaults to current pid)
#
async_start_worker() {
setopt localoptions noshwordsplit
local worker=$1; shift
zpty -t $worker &>/dev/null && return
typeset -gA ASYNC_PTYS
typeset -h REPLY
typeset has_xtrace=0
# Make sure async worker is started without xtrace
# (the trace output interferes with the worker).
[[ -o xtrace ]] && {
has_xtrace=1
unsetopt xtrace
}
if (( ! ASYNC_ZPTY_RETURNS_FD )) && [[ -o interactive ]] && [[ -o zle ]]; then
# When zpty doesn't return a file descriptor (on older versions of zsh)
# we try to guess it anyway.
integer -l zptyfd
exec {zptyfd}>&1 # Open a new file descriptor (above 10).
exec {zptyfd}>&- # Close it so it's free to be used by zpty.
fi
zpty -b $worker _async_worker -p $$ $@ || {
async_stop_worker $worker
return 1
}
# Re-enable it if it was enabled, for debugging.
(( has_xtrace )) && setopt xtrace
if [[ $ZSH_VERSION < 5.0.8 ]]; then
# For ZSH versions older than 5.0.8 we delay a bit to give
# time for the worker to start before issuing commands,
# otherwise it will not be ready to receive them.
sleep 0.001
fi
if [[ -o interactive ]] && [[ -o zle ]]; then
if (( ! ASYNC_ZPTY_RETURNS_FD )); then
REPLY=$zptyfd # Use the guessed value for the file desciptor.
fi
ASYNC_PTYS[$REPLY]=$worker # Map the file desciptor to the worker.
zle -F $REPLY _async_zle_watcher # Register the ZLE handler.
# Disable trap in favor of ZLE handler when notify is enabled (-n).
async_job $worker _unset_trap
fi
}
#
# Stop one or multiple workers that are running, all unfetched and incomplete work will be lost.
#
# usage:
# async_stop_worker <worker_name_1> [<worker_name_2>]
#
async_stop_worker() {
setopt localoptions noshwordsplit
local ret=0 worker k v
for worker in $@; do
# Find and unregister the zle handler for the worker
for k v in ${(@kv)ASYNC_PTYS}; do
if [[ $v == $worker ]]; then
zle -F $k
unset "ASYNC_PTYS[$k]"
fi
done
async_unregister_callback $worker
zpty -d $worker 2>/dev/null || ret=$?
# Clear any partial buffers.
typeset -gA ASYNC_PROCESS_BUFFER
unset "ASYNC_PROCESS_BUFFER[$worker]"
done
return $ret
}
#
# Initialize the required modules for zsh-async. To be called before using the zsh-async library.
#
# usage:
# async_init
#
async_init() {
(( ASYNC_INIT_DONE )) && return
typeset -g ASYNC_INIT_DONE=1
zmodload zsh/zpty
zmodload zsh/datetime
# Check if zsh/zpty returns a file descriptor or not,
# shell must also be interactive with zle enabled.
typeset -g ASYNC_ZPTY_RETURNS_FD=0
[[ -o interactive ]] && [[ -o zle ]] && {
typeset -h REPLY
zpty _async_test :
(( REPLY )) && ASYNC_ZPTY_RETURNS_FD=1
zpty -d _async_test
}
}
async() {
async_init
}
async "$@"

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zsh.d/prompts/pure/prompt_pure_setup Symbolic link
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pure.zsh

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zsh.d/prompts/pure/pure.plugin.zsh Symbolic link
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pure.zsh

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zsh.d/prompts/pure/pure.zsh Normal file
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# Pure
# by Sindre Sorhus
# https://github.com/sindresorhus/pure
# MIT License
# For my own and others sanity
# git:
# %b => current branch
# %a => current action (rebase/merge)
# prompt:
# %F => color dict
# %f => reset color
# %~ => current path
# %* => time
# %n => username
# %m => shortname host
# %(?..) => prompt conditional - %(condition.true.false)
# terminal codes:
# \e7 => save cursor position
# \e[2A => move cursor 2 lines up
# \e[1G => go to position 1 in terminal
# \e8 => restore cursor position
# \e[K => clears everything after the cursor on the current line
# \e[2K => clear everything on the current line
# Turns seconds into human readable time.
# 165392 => 1d 21h 56m 32s
# https://github.com/sindresorhus/pretty-time-zsh
prompt_pure_human_time_to_var() {
local human total_seconds=$1 var=$2
local days=$(( total_seconds / 60 / 60 / 24 ))
local hours=$(( total_seconds / 60 / 60 % 24 ))
local minutes=$(( total_seconds / 60 % 60 ))
local seconds=$(( total_seconds % 60 ))
(( days > 0 )) && human+="${days}d "
(( hours > 0 )) && human+="${hours}h "
(( minutes > 0 )) && human+="${minutes}m "
human+="${seconds}s"
# Store human readable time in a variable as specified by the caller
typeset -g "${var}"="${human}"
}
# Stores (into prompt_pure_cmd_exec_time) the execution
# time of the last command if set threshold was exceeded.
prompt_pure_check_cmd_exec_time() {
integer elapsed
(( elapsed = EPOCHSECONDS - ${prompt_pure_cmd_timestamp:-$EPOCHSECONDS} ))
typeset -g prompt_pure_cmd_exec_time=
(( elapsed > ${PURE_CMD_MAX_EXEC_TIME:-5} )) && {
prompt_pure_human_time_to_var $elapsed "prompt_pure_cmd_exec_time"
}
}
prompt_pure_set_title() {
setopt localoptions noshwordsplit
# Emacs terminal does not support settings the title.
(( ${+EMACS} || ${+INSIDE_EMACS} )) && return
case $TTY in
# Don't set title over serial console.
/dev/ttyS[0-9]*) return;;
esac
# Show hostname if connected via SSH.
local hostname=
if [[ -n $prompt_pure_state[username] ]]; then
# Expand in-place in case ignore-escape is used.
hostname="${(%):-(%m) }"
fi
local -a opts
case $1 in
expand-prompt) opts=(-P);;
ignore-escape) opts=(-r);;
esac
# Set title atomically in one print statement so that it works when XTRACE is enabled.
print -n $opts $'\e]0;'${hostname}${2}$'\a'
}
prompt_pure_preexec() {
if [[ -n $prompt_pure_git_fetch_pattern ]]; then
# Detect when Git is performing pull/fetch, including Git aliases.
local -H MATCH MBEGIN MEND match mbegin mend
if [[ $2 =~ (git|hub)\ (.*\ )?($prompt_pure_git_fetch_pattern)(\ .*)?$ ]]; then
# We must flush the async jobs to cancel our git fetch in order
# to avoid conflicts with the user issued pull / fetch.
async_flush_jobs 'prompt_pure'
fi
fi
typeset -g prompt_pure_cmd_timestamp=$EPOCHSECONDS
# Shows the current directory and executed command in the title while a process is active.
prompt_pure_set_title 'ignore-escape' "$PWD:t: $2"
# Disallow Python virtualenv from updating the prompt. Set it to 12 if
# untouched by the user to indicate that Pure modified it. Here we use
# the magic number 12, same as in `psvar`.
export VIRTUAL_ENV_DISABLE_PROMPT=${VIRTUAL_ENV_DISABLE_PROMPT:-12}
}
# Change the colors if their value are different from the current ones.
prompt_pure_set_colors() {
local color_temp key value
for key value in ${(kv)prompt_pure_colors}; do
zstyle -t ":prompt:pure:$key" color "$value"
case $? in
1) # The current style is different from the one from zstyle.
zstyle -s ":prompt:pure:$key" color color_temp
prompt_pure_colors[$key]=$color_temp ;;
2) # No style is defined.
prompt_pure_colors[$key]=$prompt_pure_colors_default[$key] ;;
esac
done
}
prompt_pure_preprompt_render() {
setopt localoptions noshwordsplit
# Set color for Git branch/dirty status and change color if dirty checking has been delayed.
local git_color=$prompt_pure_colors[git:branch]
local git_dirty_color=$prompt_pure_colors[git:dirty]
[[ -n ${prompt_pure_git_last_dirty_check_timestamp+x} ]] && git_color=$prompt_pure_colors[git:branch:cached]
# Initialize the preprompt array.
local -a preprompt_parts
# Set the path.
preprompt_parts+=('%F{${prompt_pure_colors[path]}}%~%f')
# Add Git branch and dirty status info.
typeset -gA prompt_pure_vcs_info
if [[ -n $prompt_pure_vcs_info[branch] ]]; then
local branch="%F{$git_color}"'${prompt_pure_vcs_info[branch]}'
if [[ -n $prompt_pure_vcs_info[action] ]]; then
branch+="|%F{$prompt_pure_colors[git:action]}"'$prompt_pure_vcs_info[action]'"%F{$git_color}"
fi
preprompt_parts+=("$branch""%F{$git_dirty_color}"'${prompt_pure_git_dirty}%f')
fi
# Git pull/push arrows.
if [[ -n $prompt_pure_git_arrows ]]; then
preprompt_parts+=('%F{$prompt_pure_colors[git:arrow]}${prompt_pure_git_arrows}%f')
fi
# Username and machine, if applicable.
[[ -n $prompt_pure_state[username] ]] && preprompt_parts+=($prompt_pure_state[username])
# Execution time.
[[ -n $prompt_pure_cmd_exec_time ]] && preprompt_parts+=('%F{$prompt_pure_colors[execution_time]}${prompt_pure_cmd_exec_time}%f')
local cleaned_ps1=$PROMPT
local -H MATCH MBEGIN MEND
if [[ $PROMPT = *$prompt_newline* ]]; then
# Remove everything from the prompt until the newline. This
# removes the preprompt and only the original PROMPT remains.
cleaned_ps1=${PROMPT##*${prompt_newline}}
fi
unset MATCH MBEGIN MEND
# Construct the new prompt with a clean preprompt.
local -ah ps1
ps1=(
${(j. .)preprompt_parts} # Join parts, space separated.
$prompt_newline # Separate preprompt and prompt.
$cleaned_ps1
)
PROMPT="${(j..)ps1}"
# Expand the prompt for future comparision.
local expanded_prompt
expanded_prompt="${(S%%)PROMPT}"
if [[ $1 == precmd ]]; then
# Initial newline, for spaciousness.
print
elif [[ $prompt_pure_last_prompt != $expanded_prompt ]]; then
# Redraw the prompt.
prompt_pure_reset_prompt
fi
typeset -g prompt_pure_last_prompt=$expanded_prompt
}
prompt_pure_precmd() {
# Check execution time and store it in a variable.
prompt_pure_check_cmd_exec_time
unset prompt_pure_cmd_timestamp
# Shows the full path in the title.
prompt_pure_set_title 'expand-prompt' '%~'
# Modify the colors if some have changed..
prompt_pure_set_colors
# Perform async Git dirty check and fetch.
prompt_pure_async_tasks
# Check if we should display the virtual env. We use a sufficiently high
# index of psvar (12) here to avoid collisions with user defined entries.
psvar[12]=
# Check if a Conda environment is active and display its name.
if [[ -n $CONDA_DEFAULT_ENV ]]; then
psvar[12]="${CONDA_DEFAULT_ENV//[$'\t\r\n']}"
fi
# When VIRTUAL_ENV_DISABLE_PROMPT is empty, it was unset by the user and
# Pure should take back control.
if [[ -n $VIRTUAL_ENV ]] && [[ -z $VIRTUAL_ENV_DISABLE_PROMPT || $VIRTUAL_ENV_DISABLE_PROMPT = 12 ]]; then
psvar[12]="${VIRTUAL_ENV:t}"
export VIRTUAL_ENV_DISABLE_PROMPT=12
fi
# Make sure VIM prompt is reset.
prompt_pure_reset_prompt_symbol
# Print the preprompt.
prompt_pure_preprompt_render "precmd"
if [[ -n $ZSH_THEME ]]; then
print "WARNING: Oh My Zsh themes are enabled (ZSH_THEME='${ZSH_THEME}'). Pure might not be working correctly."
print "For more information, see: https://github.com/sindresorhus/pure#oh-my-zsh"
unset ZSH_THEME # Only show this warning once.
fi
}
prompt_pure_async_git_aliases() {
setopt localoptions noshwordsplit
local -a gitalias pullalias
# List all aliases and split on newline.
gitalias=(${(@f)"$(command git config --get-regexp "^alias\.")"})
for line in $gitalias; do
parts=(${(@)=line}) # Split line on spaces.
aliasname=${parts[1]#alias.} # Grab the name (alias.[name]).
shift parts # Remove `aliasname`
# Check alias for pull or fetch. Must be exact match.
if [[ $parts =~ ^(.*\ )?(pull|fetch)(\ .*)?$ ]]; then
pullalias+=($aliasname)
fi
done
print -- ${(j:|:)pullalias} # Join on pipe, for use in regex.
}
prompt_pure_async_vcs_info() {
setopt localoptions noshwordsplit
# Configure `vcs_info` inside an async task. This frees up `vcs_info`
# to be used or configured as the user pleases.
zstyle ':vcs_info:*' enable git
zstyle ':vcs_info:*' use-simple true
# Only export three message variables from `vcs_info`.
zstyle ':vcs_info:*' max-exports 3
# Export branch (%b), Git toplevel (%R), and action (rebase/cherry-pick) (%a).
zstyle ':vcs_info:git*' formats '%b' '%R'
zstyle ':vcs_info:git*' actionformats '%b' '%R' '%a'
vcs_info
local -A info
info[pwd]=$PWD
info[top]=$vcs_info_msg_1_
info[branch]=$vcs_info_msg_0_
info[action]=$vcs_info_msg_2_
print -r - ${(@kvq)info}
}
# Fastest possible way to check if a Git repo is dirty.
prompt_pure_async_git_dirty() {
setopt localoptions noshwordsplit
local untracked_dirty=$1
if [[ $untracked_dirty = 0 ]]; then
command git diff --no-ext-diff --quiet --exit-code
else
test -z "$(command git status --porcelain --ignore-submodules -unormal)"
fi
return $?
}
prompt_pure_async_git_fetch() {
setopt localoptions noshwordsplit
# Sets `GIT_TERMINAL_PROMPT=0` to disable authentication prompt for Git fetch (Git 2.3+).
export GIT_TERMINAL_PROMPT=0
# Set SSH `BachMode` to disable all interactive SSH password prompting.
export GIT_SSH_COMMAND="${GIT_SSH_COMMAND:-"ssh"} -o BatchMode=yes"
local ref
ref=$(command git symbolic-ref -q HEAD)
local -a remote
remote=($(command git for-each-ref --format='%(upstream:remotename) %(refname)' $ref))
if [[ -z $remote[1] ]]; then
# No remote specified for this branch, skip fetch.
return 97
fi
# Default return code, which indicates Git fetch failure.
local fail_code=99
# Guard against all forms of password prompts. By setting the shell into
# MONITOR mode we can notice when a child process prompts for user input
# because it will be suspended. Since we are inside an async worker, we
# have no way of transmitting the password and the only option is to
# kill it. If we don't do it this way, the process will corrupt with the
# async worker.
setopt localtraps monitor
# Make sure local HUP trap is unset to allow for signal propagation when
# the async worker is flushed.
trap - HUP
trap '
# Unset trap to prevent infinite loop
trap - CHLD
if [[ $jobstates = suspended* ]]; then
# Set fail code to password prompt and kill the fetch.
fail_code=98
kill %%
fi
' CHLD
# Only fetch information for the current branch and avoid
# fetching tags or submodules to speed up the process.
command git -c gc.auto=0 fetch \
--quiet \
--no-tags \
--recurse-submodules=no \
$remote &>/dev/null &
wait $! || return $fail_code
unsetopt monitor
# Check arrow status after a successful `git fetch`.
prompt_pure_async_git_arrows
}
prompt_pure_async_git_arrows() {
setopt localoptions noshwordsplit
command git rev-list --left-right --count HEAD...@'{u}'
}
# Try to lower the priority of the worker so that disk heavy operations
# like `git status` has less impact on the system responsivity.
prompt_pure_async_renice() {
setopt localoptions noshwordsplit
if command -v renice >/dev/null; then
command renice +15 -p $$
fi
if command -v ionice >/dev/null; then
command ionice -c 3 -p $$
fi
}
prompt_pure_async_tasks() {
setopt localoptions noshwordsplit
# Initialize the async worker.
((!${prompt_pure_async_init:-0})) && {
async_start_worker "prompt_pure" -u -n
async_register_callback "prompt_pure" prompt_pure_async_callback
typeset -g prompt_pure_async_init=1
async_job "prompt_pure" prompt_pure_async_renice
}
# Update the current working directory of the async worker.
async_worker_eval "prompt_pure" builtin cd -q $PWD
typeset -gA prompt_pure_vcs_info
local -H MATCH MBEGIN MEND
if [[ $PWD != ${prompt_pure_vcs_info[pwd]}* ]]; then
# Stop any running async jobs.
async_flush_jobs "prompt_pure"
# Reset Git preprompt variables, switching working tree.
unset prompt_pure_git_dirty
unset prompt_pure_git_last_dirty_check_timestamp
unset prompt_pure_git_arrows
unset prompt_pure_git_fetch_pattern
prompt_pure_vcs_info[branch]=
prompt_pure_vcs_info[top]=
fi
unset MATCH MBEGIN MEND
async_job "prompt_pure" prompt_pure_async_vcs_info
# Only perform tasks inside a Git working tree.
[[ -n $prompt_pure_vcs_info[top] ]] || return
prompt_pure_async_refresh
}
prompt_pure_async_refresh() {
setopt localoptions noshwordsplit
if [[ -z $prompt_pure_git_fetch_pattern ]]; then
# We set the pattern here to avoid redoing the pattern check until the
# working three has changed. Pull and fetch are always valid patterns.
typeset -g prompt_pure_git_fetch_pattern="pull|fetch"
async_job "prompt_pure" prompt_pure_async_git_aliases
fi
async_job "prompt_pure" prompt_pure_async_git_arrows
# Do not preform `git fetch` if it is disabled or in home folder.
if (( ${PURE_GIT_PULL:-1} )) && [[ $prompt_pure_vcs_info[top] != $HOME ]]; then
# Tell the async worker to do a `git fetch`.
async_job "prompt_pure" prompt_pure_async_git_fetch
fi
# If dirty checking is sufficiently fast,
# tell the worker to check it again, or wait for timeout.
integer time_since_last_dirty_check=$(( EPOCHSECONDS - ${prompt_pure_git_last_dirty_check_timestamp:-0} ))
if (( time_since_last_dirty_check > ${PURE_GIT_DELAY_DIRTY_CHECK:-1800} )); then
unset prompt_pure_git_last_dirty_check_timestamp
# Check check if there is anything to pull.
async_job "prompt_pure" prompt_pure_async_git_dirty ${PURE_GIT_UNTRACKED_DIRTY:-1}
fi
}
prompt_pure_check_git_arrows() {
setopt localoptions noshwordsplit
local arrows left=${1:-0} right=${2:-0}
(( right > 0 )) && arrows+=${PURE_GIT_DOWN_ARROW:-⇣}
(( left > 0 )) && arrows+=${PURE_GIT_UP_ARROW:-⇡}
[[ -n $arrows ]] || return
typeset -g REPLY=$arrows
}
prompt_pure_async_callback() {
setopt localoptions noshwordsplit
local job=$1 code=$2 output=$3 exec_time=$4 next_pending=$6
local do_render=0
case $job in
\[async])
# Code is 1 for corrupted worker output and 2 for dead worker.
if [[ $code -eq 2 ]]; then
# Our worker died unexpectedly.
typeset -g prompt_pure_async_init=0
fi
;;
prompt_pure_async_vcs_info)
local -A info
typeset -gA prompt_pure_vcs_info
# Parse output (z) and unquote as array (Q@).
info=("${(Q@)${(z)output}}")
local -H MATCH MBEGIN MEND
if [[ $info[pwd] != $PWD ]]; then
# The path has changed since the check started, abort.
return
fi
# Check if Git top-level has changed.
if [[ $info[top] = $prompt_pure_vcs_info[top] ]]; then
# If the stored pwd is part of $PWD, $PWD is shorter and likelier
# to be top-level, so we update pwd.
if [[ $prompt_pure_vcs_info[pwd] = ${PWD}* ]]; then
prompt_pure_vcs_info[pwd]=$PWD
fi
else
# Store $PWD to detect if we (maybe) left the Git path.
prompt_pure_vcs_info[pwd]=$PWD
fi
unset MATCH MBEGIN MEND
# The update has a Git top-level set, which means we just entered a new
# Git directory. Run the async refresh tasks.
[[ -n $info[top] ]] && [[ -z $prompt_pure_vcs_info[top] ]] && prompt_pure_async_refresh
# Always update branch and top-level.
prompt_pure_vcs_info[branch]=$info[branch]
prompt_pure_vcs_info[top]=$info[top]
prompt_pure_vcs_info[action]=$info[action]
do_render=1
;;
prompt_pure_async_git_aliases)
if [[ -n $output ]]; then
# Append custom Git aliases to the predefined ones.
prompt_pure_git_fetch_pattern+="|$output"
fi
;;
prompt_pure_async_git_dirty)
local prev_dirty=$prompt_pure_git_dirty
if (( code == 0 )); then
unset prompt_pure_git_dirty
else
typeset -g prompt_pure_git_dirty="*"
fi
[[ $prev_dirty != $prompt_pure_git_dirty ]] && do_render=1
# When `prompt_pure_git_last_dirty_check_timestamp` is set, the Git info is displayed
# in a different color. To distinguish between a "fresh" and a "cached" result, the
# preprompt is rendered before setting this variable. Thus, only upon the next
# rendering of the preprompt will the result appear in a different color.
(( $exec_time > 5 )) && prompt_pure_git_last_dirty_check_timestamp=$EPOCHSECONDS
;;
prompt_pure_async_git_fetch|prompt_pure_async_git_arrows)
# `prompt_pure_async_git_fetch` executes `prompt_pure_async_git_arrows`
# after a successful fetch.
case $code in
0)
local REPLY
prompt_pure_check_git_arrows ${(ps:\t:)output}
if [[ $prompt_pure_git_arrows != $REPLY ]]; then
typeset -g prompt_pure_git_arrows=$REPLY
do_render=1
fi
;;
97)
# No remote available, make sure to clear git arrows if set.
if [[ -n $prompt_pure_git_arrows ]]; then
typeset -g prompt_pure_git_arrows=
do_render=1
fi
;;
99|98)
# Git fetch failed.
;;
*)
# Non-zero exit status from `prompt_pure_async_git_arrows`,
# indicating that there is no upstream configured.
if [[ -n $prompt_pure_git_arrows ]]; then
unset prompt_pure_git_arrows
do_render=1
fi
;;
esac
;;
prompt_pure_async_renice)
;;
esac
if (( next_pending )); then
(( do_render )) && typeset -g prompt_pure_async_render_requested=1
return
fi
[[ ${prompt_pure_async_render_requested:-$do_render} = 1 ]] && prompt_pure_preprompt_render
unset prompt_pure_async_render_requested
}
prompt_pure_reset_prompt() {
if [[ $CONTEXT == cont ]]; then
# When the context is "cont", PS2 is active and calling
# reset-prompt will have no effect on PS1, but it will
# reset the execution context (%_) of PS2 which we don't
# want. Unfortunately, we can't save the output of "%_"
# either because it is only ever rendered as part of the
# prompt, expanding in-place won't work.
return
fi
zle && zle .reset-prompt
}
prompt_pure_reset_prompt_symbol() {
prompt_pure_state[prompt]=${PURE_PROMPT_SYMBOL:-❯}
}
prompt_pure_update_vim_prompt_widget() {
setopt localoptions noshwordsplit
prompt_pure_state[prompt]=${${KEYMAP/vicmd/${PURE_PROMPT_VICMD_SYMBOL:-❮}}/(main|viins)/${PURE_PROMPT_SYMBOL:-❯}}
prompt_pure_reset_prompt
}
prompt_pure_reset_vim_prompt_widget() {
setopt localoptions noshwordsplit
prompt_pure_reset_prompt_symbol
# We can't perform a prompt reset at this point because it
# removes the prompt marks inserted by macOS Terminal.
}
prompt_pure_state_setup() {
setopt localoptions noshwordsplit
# Check SSH_CONNECTION and the current state.
local ssh_connection=${SSH_CONNECTION:-$PROMPT_PURE_SSH_CONNECTION}
local username hostname
if [[ -z $ssh_connection ]] && (( $+commands[who] )); then
# When changing user on a remote system, the $SSH_CONNECTION
# environment variable can be lost. Attempt detection via `who`.
local who_out
who_out=$(who -m 2>/dev/null)
if (( $? )); then
# Who am I not supported, fallback to plain who.
local -a who_in
who_in=( ${(f)"$(who 2>/dev/null)"} )
who_out="${(M)who_in:#*[[:space:]]${TTY#/dev/}[[:space:]]*}"
fi
local reIPv6='(([0-9a-fA-F]+:)|:){2,}[0-9a-fA-F]+' # Simplified, only checks partial pattern.
local reIPv4='([0-9]{1,3}\.){3}[0-9]+' # Simplified, allows invalid ranges.
# Here we assume two non-consecutive periods represents a
# hostname. This matches `foo.bar.baz`, but not `foo.bar`.
local reHostname='([.][^. ]+){2}'
# Usually the remote address is surrounded by parenthesis, but
# not on all systems (e.g. busybox).
local -H MATCH MBEGIN MEND
if [[ $who_out =~ "\(?($reIPv4|$reIPv6|$reHostname)\)?\$" ]]; then
ssh_connection=$MATCH
# Export variable to allow detection propagation inside
# shells spawned by this one (e.g. tmux does not always
# inherit the same tty, which breaks detection).
export PROMPT_PURE_SSH_CONNECTION=$ssh_connection
fi
unset MATCH MBEGIN MEND
fi
hostname='%F{$prompt_pure_colors[host]}@%m%f'
# Show `username@host` if logged in through SSH.
[[ -n $ssh_connection ]] && username='%F{$prompt_pure_colors[user]}%n%f'"$hostname"
# Show `username@host` if root, with username in default color.
[[ $UID -eq 0 ]] && username='%F{$prompt_pure_colors[user:root]}%n%f'"$hostname"
typeset -gA prompt_pure_state
prompt_pure_state[version]="1.11.0"
prompt_pure_state+=(
username "$username"
prompt "${PURE_PROMPT_SYMBOL:-❯}"
)
}
prompt_pure_system_report() {
setopt localoptions noshwordsplit
print - "- Zsh: $($SHELL --version) ($SHELL)"
print -n - "- Operating system: "
case "$(uname -s)" in
Darwin) print "$(sw_vers -productName) $(sw_vers -productVersion) ($(sw_vers -buildVersion))";;
*) print "$(uname -s) ($(uname -v))";;
esac
print - "- Terminal program: ${TERM_PROGRAM:-unknown} (${TERM_PROGRAM_VERSION:-unknown})"
print -n - "- Tmux: "
[[ -n $TMUX ]] && print "yes" || print "no"
local git_version
git_version=($(git --version)) # Remove newlines, if hub is present.
print - "- Git: $git_version"
print - "- Pure state:"
for k v in "${(@kv)prompt_pure_state}"; do
print - " - $k: \`${(q)v}\`"
done
print - "- PROMPT: \`$(typeset -p PROMPT)\`"
print - "- Colors: \`$(typeset -p prompt_pure_colors)\`"
print - "- Virtualenv: \`$(typeset -p VIRTUAL_ENV_DISABLE_PROMPT)\`"
print - "- Conda: \`$(typeset -p CONDA_CHANGEPS1)\`"
local ohmyzsh=0
typeset -la frameworks
(( $+ANTIBODY_HOME )) && frameworks+=("Antibody")
(( $+ADOTDIR )) && frameworks+=("Antigen")
(( $+ANTIGEN_HS_HOME )) && frameworks+=("Antigen-hs")
(( $+functions[upgrade_oh_my_zsh] )) && {
ohmyzsh=1
frameworks+=("Oh My Zsh")
}
(( $+ZPREZTODIR )) && frameworks+=("Prezto")
(( $+ZPLUG_ROOT )) && frameworks+=("Zplug")
(( $+ZPLGM )) && frameworks+=("Zplugin")
(( $#frameworks == 0 )) && frameworks+=("None")
print - "- Detected frameworks: ${(j:, :)frameworks}"
if (( ohmyzsh )); then
print - " - Oh My Zsh:"
print - " - Plugins: ${(j:, :)plugins}"
fi
}
prompt_pure_setup() {
# Prevent percentage showing up if output doesn't end with a newline.
export PROMPT_EOL_MARK=''
prompt_opts=(subst percent)
# Borrowed from `promptinit`. Sets the prompt options in case Pure was not
# initialized via `promptinit`.
setopt noprompt{bang,cr,percent,subst} "prompt${^prompt_opts[@]}"
if [[ -z $prompt_newline ]]; then
# This variable needs to be set, usually set by promptinit.
typeset -g prompt_newline=$'\n%{\r%}'
fi
zmodload zsh/datetime
zmodload zsh/zle
zmodload zsh/parameter
zmodload zsh/zutil
autoload -Uz add-zsh-hook
autoload -Uz vcs_info
autoload -Uz async && async
# The `add-zle-hook-widget` function is not guaranteed to be available.
# It was added in Zsh 5.3.
autoload -Uz +X add-zle-hook-widget 2>/dev/null
# Set the colors.
typeset -gA prompt_pure_colors_default prompt_pure_colors
prompt_pure_colors_default=(
execution_time yellow
git:arrow cyan
git:branch 242
git:branch:cached red
git:action 242
git:dirty 218
host 242
path blue
prompt:error red
prompt:success magenta
prompt:continuation 242
user 242
user:root default
virtualenv 242
)
prompt_pure_colors=("${(@kv)prompt_pure_colors_default}")
add-zsh-hook precmd prompt_pure_precmd
add-zsh-hook preexec prompt_pure_preexec
prompt_pure_state_setup
zle -N prompt_pure_reset_prompt
zle -N prompt_pure_update_vim_prompt_widget
zle -N prompt_pure_reset_vim_prompt_widget
if (( $+functions[add-zle-hook-widget] )); then
add-zle-hook-widget zle-line-finish prompt_pure_reset_vim_prompt_widget
add-zle-hook-widget zle-keymap-select prompt_pure_update_vim_prompt_widget
fi
# If a virtualenv is activated, display it in grey.
PROMPT='%(12V.%F{$prompt_pure_colors[virtualenv]}%12v%f .)'
# Prompt turns red if the previous command didn't exit with 0.
local prompt_indicator='%(?.%F{$prompt_pure_colors[prompt:success]}.%F{$prompt_pure_colors[prompt:error]})${prompt_pure_state[prompt]}%f '
PROMPT+=$prompt_indicator
# Indicate continuation prompt by … and use a darker color for it.
PROMPT2='%F{$prompt_pure_colors[prompt:continuation]}… %(1_.%_ .%_)%f'$prompt_indicator
# Store prompt expansion symbols for in-place expansion via (%). For
# some reason it does not work without storing them in a variable first.
typeset -ga prompt_pure_debug_depth
prompt_pure_debug_depth=('%e' '%N' '%x')
# Compare is used to check if %N equals %x. When they differ, the main
# prompt is used to allow displaying both filename and function. When
# they match, we use the secondary prompt to avoid displaying duplicate
# information.
local -A ps4_parts
ps4_parts=(
depth '%F{yellow}${(l:${(%)prompt_pure_debug_depth[1]}::+:)}%f'
compare '${${(%)prompt_pure_debug_depth[2]}:#${(%)prompt_pure_debug_depth[3]}}'
main '%F{blue}${${(%)prompt_pure_debug_depth[3]}:t}%f%F{242}:%I%f %F{242}@%f%F{blue}%N%f%F{242}:%i%f'
secondary '%F{blue}%N%f%F{242}:%i'
prompt '%F{242}>%f '
)
# Combine the parts with conditional logic. First the `:+` operator is
# used to replace `compare` either with `main` or an ampty string. Then
# the `:-` operator is used so that if `compare` becomes an empty
# string, it is replaced with `secondary`.
local ps4_symbols='${${'${ps4_parts[compare]}':+"'${ps4_parts[main]}'"}:-"'${ps4_parts[secondary]}'"}'
# Improve the debug prompt (PS4), show depth by repeating the +-sign and
# add colors to highlight essential parts like file and function name.
PROMPT4="${ps4_parts[depth]} ${ps4_symbols}${ps4_parts[prompt]}"
# Guard against Oh My Zsh themes overriding Pure.
unset ZSH_THEME
# Guard against (ana)conda changing the PS1 prompt
# (we manually insert the env when it's available).
export CONDA_CHANGEPS1=no
}
prompt_pure_setup "$@"