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powerlevel10k/gitstatus/gitstatus.plugin.sh
Roman Perepelitsa f5d61840ae Merge commit '96f3ca173331c5dba505d2ef5106cb0d605ec3be'
2021-06-10 10:15:02 +02:00

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Bash
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# Bash bindings for gitstatus.
[[ $- == *i* ]] || return # non-interactive shell
# Starts gitstatusd in the background. Does nothing and succeeds if gitstatusd
# is already running.
#
# Usage: gitstatus_start [OPTION]...
#
# -t FLOAT Fail the self-check on initialization if not getting a response from
# gitstatusd for this this many seconds. Defaults to 5.
#
# -s INT Report at most this many staged changes; negative value means infinity.
# Defaults to 1.
#
# -u INT Report at most this many unstaged changes; negative value means infinity.
# Defaults to 1.
#
# -c INT Report at most this many conflicted changes; negative value means infinity.
# Defaults to 1.
#
# -d INT Report at most this many untracked files; negative value means infinity.
# Defaults to 1.
#
# -m INT Report -1 unstaged, untracked and conflicted if there are more than this many
# files in the index. Negative value means infinity. Defaults to -1.
#
# -e Count files within untracked directories like `git status --untracked-files`.
#
# -U Unless this option is specified, report zero untracked files for repositories
# with status.showUntrackedFiles = false.
#
# -W Unless this option is specified, report zero untracked files for repositories
# with bash.showUntrackedFiles = false.
#
# -D Unless this option is specified, report zero staged, unstaged and conflicted
# changes for repositories with bash.showDirtyState = false.
#
# -r INT Close git repositories that haven't been used for this many seconds. This is
# meant to release resources such as memory and file descriptors. The next request
# for a repo that's been closed is much slower than for a repo that hasn't been.
# Negative value means infinity. The default is 3600 (one hour).
function gitstatus_start() {
if [[ "$BASH_VERSION" < 4 ]]; then
>&2 printf 'gitstatus_start: need bash version >= 4.0, found %s\n' "$BASH_VERSION"
>&2 printf '\n'
>&2 printf 'To see the version of the current shell, type:\n'
>&2 printf '\n'
>&2 printf ' \033[32mecho\033[0m \033[33m"$BASH_VERSION"\033[0m\n'
>&2 printf '\n'
>&2 printf 'The output of `\033[32mbash\033[0m --version` may be different and is not relevant.\n'
return 1
fi
unset OPTIND
local opt timeout=5 max_dirty=-1 ttl=3600 extra_flags
local max_num_staged=1 max_num_unstaged=1 max_num_conflicted=1 max_num_untracked=1
local ignore_status_show_untracked_files
while getopts "t:s:u:c:d:m:r:eUWD" opt; do
case "$opt" in
t) timeout=$OPTARG;;
s) max_num_staged=$OPTARG;;
u) max_num_unstaged=$OPTARG;;
c) max_num_conflicted=$OPTARG;;
d) max_num_untracked=$OPTARG;;
m) max_dirty=$OPTARG;;
r) ttl=$OPTARG;;
e) extra_flags+='--recurse-untracked-dirs ';;
U) extra_flags+='--ignore-status-show-untracked-files ';;
W) extra_flags+='--ignore-bash-show-untracked-files ';;
D) extra_flags+='--ignore-bash-show-dirty-state ';;
*) return 1;;
esac
done
(( OPTIND == $# + 1 )) || { echo "usage: gitstatus_start [OPTION]..." >&2; return 1; }
[[ -z "${GITSTATUS_DAEMON_PID:-}" ]] || return 0 # already started
if [[ "${BASH_SOURCE[0]}" == */* ]]; then
local gitstatus_plugin_dir="${BASH_SOURCE[0]%/*}"
if [[ "$gitstatus_plugin_dir" != /* ]]; then
gitstatus_plugin_dir="$PWD"/"$gitstatus_plugin_dir"
fi
else
local gitstatus_plugin_dir="$PWD"
fi
local tmpdir req_fifo resp_fifo culprit
function gitstatus_start_impl() {
local log_level="${GITSTATUS_LOG_LEVEL:-}"
[[ -n "$log_level" || "${GITSTATUS_ENABLE_LOGGING:-0}" != 1 ]] || log_level=INFO
local uname_sm
uname_sm="$(command uname -sm)" || return
uname_sm="${uname_sm,,}"
local uname_s="${uname_sm% *}"
local uname_m="${uname_sm#* }"
if [[ "${GITSTATUS_NUM_THREADS:-0}" -gt 0 ]]; then
local threads="$GITSTATUS_NUM_THREADS"
else
local cpus
if ! command -v sysctl &>/dev/null || [[ "$uname_s" == linux ]] ||
! cpus="$(command sysctl -n hw.ncpu)"; then
if ! command -v getconf &>/dev/null || ! cpus="$(command getconf _NPROCESSORS_ONLN)"; then
cpus=8
fi
fi
local threads=$((cpus > 16 ? 32 : cpus > 0 ? 2 * cpus : 16))
fi
local daemon_args=(
--parent-pid="$$"
--num-threads="$threads"
--max-num-staged="$max_num_staged"
--max-num-unstaged="$max_num_unstaged"
--max-num-conflicted="$max_num_conflicted"
--max-num-untracked="$max_num_untracked"
--dirty-max-index-size="$max_dirty"
--repo-ttl-seconds="$ttl"
$extra_flags)
tmpdir="$(command mktemp -d "${TMPDIR:-/tmp}"/gitstatus.bash.$$.XXXXXXXXXX)" || return
if [[ -n "$log_level" ]]; then
GITSTATUS_DAEMON_LOG="$tmpdir"/daemon.log
[[ "$log_level" == INFO ]] || daemon_args+=(--log-level="$log_level")
else
GITSTATUS_DAEMON_LOG=/dev/null
fi
req_fifo="$tmpdir"/req.fifo
resp_fifo="$tmpdir"/resp.fifo
command mkfifo -- "$req_fifo" "$resp_fifo" || return
{
(
trap '' INT QUIT TSTP
[[ "$GITSTATUS_DAEMON_LOG" == /dev/null ]] || set -x
builtin cd /
(
local fd_in fd_out
exec {fd_in}<"$req_fifo" {fd_out}>>"$resp_fifo" || exit
echo "$BASHPID" >&"$fd_out"
local _gitstatus_bash_daemon _gitstatus_bash_version _gitstatus_bash_downloaded
function _gitstatus_set_daemon() {
_gitstatus_bash_daemon="$1"
_gitstatus_bash_version="$2"
_gitstatus_bash_downloaded="$3"
}
set -- -d "$gitstatus_plugin_dir" -s "$uname_s" -m "$uname_m" \
-p "printf '.\036' >&$fd_out" -e "$fd_out" -- _gitstatus_set_daemon
[[ "${GITSTATUS_AUTO_INSTALL:-1}" -ne 0 ]] || set -- -n "$@"
source "$gitstatus_plugin_dir"/install || return
[[ -n "$_gitstatus_bash_daemon" ]] || return
[[ -n "$_gitstatus_bash_version" ]] || return
[[ "$_gitstatus_bash_downloaded" == [01] ]] || return
local sig=(TERM ILL PIPE)
if (( UID == EUID )); then
local home=~
else
local user
user="$(command id -un)" || return
[[ "$user" =~ ^[a-zA-Z0-9_,.-]+$ ]] || return
eval "local home=~$user"
[[ -n "$home" ]] || return
fi
if [[ -x "$_gitstatus_bash_daemon" ]]; then
HOME="$home" "$_gitstatus_bash_daemon" \
-G "$_gitstatus_bash_version" "${daemon_args[@]}" <&"$fd_in" >&"$fd_out" &
local pid=$!
trap "trap - ${sig[*]}; kill $pid &>/dev/null" ${sig[@]}
wait "$pid"
local ret=$?
trap - ${sig[@]}
case "$ret" in
0|129|130|131|137|141|143|159)
echo -nE $'}bye\x1f0\x1e' >&"$fd_out"
exit "$ret"
;;
esac
fi
(( ! _gitstatus_bash_downloaded )) || return
[[ "${GITSTATUS_AUTO_INSTALL:-1}" -ne 0 ]] || return
[[ "$_gitstatus_bash_daemon" == \
"${GITSTATUS_CACHE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/gitstatus}"/* ]] || return
set -- -f "$@"
_gitstatus_bash_daemon=
_gitstatus_bash_version=
_gitstatus_bash_downloaded=
source "$gitstatus_plugin_dir"/install || return
[[ -n "$_gitstatus_bash_daemon" ]] || return
[[ -n "$_gitstatus_bash_version" ]] || return
[[ "$_gitstatus_bash_downloaded" == 1 ]] || return
HOME="$home" "$_gitstatus_bash_daemon" \
-G "$_gitstatus_bash_version" "${daemon_args[@]}" <&"$fd_in" >&"$fd_out" &
local pid=$!
trap "trap - ${sig[*]}; kill $pid &>/dev/null" ${sig[@]}
wait "$pid"
trap - ${sig[@]}
echo -nE $'}bye\x1f0\x1e' >&"$fd_out"
) & disown
) & disown
} 0</dev/null &>"$GITSTATUS_DAEMON_LOG"
exec {_GITSTATUS_REQ_FD}>>"$req_fifo" {_GITSTATUS_RESP_FD}<"$resp_fifo" || return
command rm -f -- "$req_fifo" "$resp_fifo" || return
[[ "$GITSTATUS_DAEMON_LOG" != /dev/null ]] || command rmdir -- "$tmpdir" 2>/dev/null
IFS='' read -r -u $_GITSTATUS_RESP_FD GITSTATUS_DAEMON_PID || return
[[ "$GITSTATUS_DAEMON_PID" == [1-9]* ]] || return
local reply
echo -nE $'}hello\x1f\x1e' >&$_GITSTATUS_REQ_FD || return
local dl=
while true; do
reply=
if ! IFS='' read -rd $'\x1e' -u $_GITSTATUS_RESP_FD -t "$timeout" reply; then
culprit="$reply"
return 1
fi
[[ "$reply" == $'}hello\x1f0' ]] && break
if [[ -z "$dl" ]]; then
dl=1
if [[ -t 2 ]]; then
local spinner=('\b\033[33m-\033[0m' '\b\033[33m\\\033[0m' '\b\033[33m|\033[0m' '\b\033[33m/\033[0m')
>&2 printf '[\033[33mgitstatus\033[0m] fetching \033[32mgitstatusd\033[0m .. '
else
local spinner=('.')
>&2 printf '[gitstatus] fetching gitstatusd ..'
fi
fi
>&2 printf "${spinner[0]}"
spinner=("${spinner[@]:1}" "${spinner[0]}")
done
if [[ -n "$dl" ]]; then
if [[ -t 2 ]]; then
>&2 printf '\b[\033[32mok\033[0m]\n'
else
>&2 echo ' [ok]'
fi
fi
_GITSTATUS_DIRTY_MAX_INDEX_SIZE=$max_dirty
_GITSTATUS_CLIENT_PID="$BASHPID"
}
if ! gitstatus_start_impl; then
>&2 printf '\n'
>&2 printf '[\033[31mERROR\033[0m]: gitstatus failed to initialize.\n'
if [[ -n "${culprit-}" ]]; then
>&2 printf '\n%s\n' "$culprit"
fi
[[ -z "${req_fifo:-}" ]] || command rm -f "$req_fifo"
[[ -z "${resp_fifo:-}" ]] || command rm -f "$resp_fifo"
unset -f gitstatus_start_impl
gitstatus_stop
return 1
fi
export _GITSTATUS_CLIENT_PID _GITSTATUS_REQ_FD _GITSTATUS_RESP_FD GITSTATUS_DAEMON_PID
unset -f gitstatus_start_impl
}
# Stops gitstatusd if it's running.
function gitstatus_stop() {
if [[ "${_GITSTATUS_CLIENT_PID:-$BASHPID}" == "$BASHPID" ]]; then
[[ -z "${_GITSTATUS_REQ_FD:-}" ]] || exec {_GITSTATUS_REQ_FD}>&- || true
[[ -z "${_GITSTATUS_RESP_FD:-}" ]] || exec {_GITSTATUS_RESP_FD}>&- || true
[[ -z "${GITSTATUS_DAEMON_PID:-}" ]] || kill "$GITSTATUS_DAEMON_PID" &>/dev/null || true
fi
unset _GITSTATUS_REQ_FD _GITSTATUS_RESP_FD GITSTATUS_DAEMON_PID
unset _GITSTATUS_DIRTY_MAX_INDEX_SIZE _GITSTATUS_CLIENT_PID
}
# Retrives status of a git repository from a directory under its working tree.
#
# Usage: gitstatus_query [OPTION]...
#
# -d STR Directory to query. Defaults to $PWD. Has no effect if GIT_DIR is set.
# -t FLOAT Timeout in seconds. Will block for at most this long. If no results
# are available by then, will return error.
# -p Don't compute anything that requires reading Git index. If this option is used,
# the following parameters will be 0: VCS_STATUS_INDEX_SIZE,
# VCS_STATUS_{NUM,HAS}_{STAGED,UNSTAGED,UNTRACKED,CONFLICTED}.
#
# On success sets VCS_STATUS_RESULT to one of the following values:
#
# norepo-sync The directory doesn't belong to a git repository.
# ok-sync The directory belongs to a git repository.
#
# If VCS_STATUS_RESULT is ok-sync, additional variables are set:
#
# VCS_STATUS_WORKDIR Git repo working directory. Not empty.
# VCS_STATUS_COMMIT Commit hash that HEAD is pointing to. Either 40 hex digits or
# empty if there is no HEAD (empty repo).
# VCS_STATUS_COMMIT_ENCODING Encoding of the HEAD's commit message. Empty value means UTF-8.
# VCS_STATUS_COMMIT_SUMMARY The first paragraph of the HEAD's commit message as one line.
# VCS_STATUS_LOCAL_BRANCH Local branch name or empty if not on a branch.
# VCS_STATUS_REMOTE_NAME The remote name, e.g. "upstream" or "origin".
# VCS_STATUS_REMOTE_BRANCH Upstream branch name. Can be empty.
# VCS_STATUS_REMOTE_URL Remote URL. Can be empty.
# VCS_STATUS_ACTION Repository state, A.K.A. action. Can be empty.
# VCS_STATUS_INDEX_SIZE The number of files in the index.
# VCS_STATUS_NUM_STAGED The number of staged changes.
# VCS_STATUS_NUM_CONFLICTED The number of conflicted changes.
# VCS_STATUS_NUM_UNSTAGED The number of unstaged changes.
# VCS_STATUS_NUM_UNTRACKED The number of untracked files.
# VCS_STATUS_HAS_STAGED 1 if there are staged changes, 0 otherwise.
# VCS_STATUS_HAS_CONFLICTED 1 if there are conflicted changes, 0 otherwise.
# VCS_STATUS_HAS_UNSTAGED 1 if there are unstaged changes, 0 if there aren't, -1 if
# unknown.
# VCS_STATUS_NUM_STAGED_NEW The number of staged new files. Note that renamed files
# are reported as deleted plus new.
# VCS_STATUS_NUM_STAGED_DELETED The number of staged deleted files. Note that renamed files
# are reported as deleted plus new.
# VCS_STATUS_NUM_UNSTAGED_DELETED The number of unstaged deleted files. Note that renamed files
# are reported as deleted plus new.
# VCS_STATUS_HAS_UNTRACKED 1 if there are untracked files, 0 if there aren't, -1 if
# unknown.
# VCS_STATUS_COMMITS_AHEAD Number of commits the current branch is ahead of upstream.
# Non-negative integer.
# VCS_STATUS_COMMITS_BEHIND Number of commits the current branch is behind upstream.
# Non-negative integer.
# VCS_STATUS_STASHES Number of stashes. Non-negative integer.
# VCS_STATUS_TAG The last tag (in lexicographical order) that points to the same
# commit as HEAD.
# VCS_STATUS_PUSH_REMOTE_NAME The push remote name, e.g. "upstream" or "origin".
# VCS_STATUS_PUSH_REMOTE_URL Push remote URL. Can be empty.
# VCS_STATUS_PUSH_COMMITS_AHEAD Number of commits the current branch is ahead of push remote.
# Non-negative integer.
# VCS_STATUS_PUSH_COMMITS_BEHIND Number of commits the current branch is behind push remote.
# Non-negative integer.
# VCS_STATUS_NUM_SKIP_WORKTREE The number of files in the index with skip-worktree bit set.
# Non-negative integer.
# VCS_STATUS_NUM_ASSUME_UNCHANGED The number of files in the index with assume-unchanged bit set.
# Non-negative integer.
#
# The point of reporting -1 via VCS_STATUS_HAS_* is to allow the command to skip scanning files in
# large repos. See -m flag of gitstatus_start.
#
# gitstatus_query returns an error if gitstatus_start hasn't been called in the same
# shell or the call had failed.
function gitstatus_query() {
unset OPTIND
local opt dir timeout=() no_diff=0
while getopts "d:c:t:p" opt "$@"; do
case "$opt" in
d) dir=$OPTARG;;
t) timeout=(-t "$OPTARG");;
p) no_diff=1;;
*) return 1;;
esac
done
(( OPTIND == $# + 1 )) || { echo "usage: gitstatus_query [OPTION]..." >&2; return 1; }
[[ -n "$GITSTATUS_DAEMON_PID" ]] || return # not started
local req_id="$RANDOM.$RANDOM.$RANDOM.$RANDOM"
if [[ -z "${GIT_DIR:-}" ]]; then
[[ "$dir" == /* ]] || dir="$(pwd -P)/$dir" || return
elif [[ "$GIT_DIR" == /* ]]; then
dir=:"$GIT_DIR"
else
dir=:"$(pwd -P)/$GIT_DIR" || return
fi
echo -nE "$req_id"$'\x1f'"$dir"$'\x1f'"$no_diff"$'\x1e' >&$_GITSTATUS_REQ_FD || return
local -a resp
while true; do
IFS=$'\x1f' read -rd $'\x1e' -a resp -u $_GITSTATUS_RESP_FD "${timeout[@]}" || return
[[ "${resp[0]}" == "$req_id" ]] && break
done
if [[ "${resp[1]}" == 1 ]]; then
VCS_STATUS_RESULT=ok-sync
VCS_STATUS_WORKDIR="${resp[2]}"
VCS_STATUS_COMMIT="${resp[3]}"
VCS_STATUS_LOCAL_BRANCH="${resp[4]}"
VCS_STATUS_REMOTE_BRANCH="${resp[5]}"
VCS_STATUS_REMOTE_NAME="${resp[6]}"
VCS_STATUS_REMOTE_URL="${resp[7]}"
VCS_STATUS_ACTION="${resp[8]}"
VCS_STATUS_INDEX_SIZE="${resp[9]}"
VCS_STATUS_NUM_STAGED="${resp[10]}"
VCS_STATUS_NUM_UNSTAGED="${resp[11]}"
VCS_STATUS_NUM_CONFLICTED="${resp[12]}"
VCS_STATUS_NUM_UNTRACKED="${resp[13]}"
VCS_STATUS_COMMITS_AHEAD="${resp[14]}"
VCS_STATUS_COMMITS_BEHIND="${resp[15]}"
VCS_STATUS_STASHES="${resp[16]}"
VCS_STATUS_TAG="${resp[17]}"
VCS_STATUS_NUM_UNSTAGED_DELETED="${resp[18]}"
VCS_STATUS_NUM_STAGED_NEW="${resp[19]:-0}"
VCS_STATUS_NUM_STAGED_DELETED="${resp[20]:-0}"
VCS_STATUS_PUSH_REMOTE_NAME="${resp[21]:-}"
VCS_STATUS_PUSH_REMOTE_URL="${resp[22]:-}"
VCS_STATUS_PUSH_COMMITS_AHEAD="${resp[23]:-0}"
VCS_STATUS_PUSH_COMMITS_BEHIND="${resp[24]:-0}"
VCS_STATUS_NUM_SKIP_WORKTREE="${resp[25]:-0}"
VCS_STATUS_NUM_ASSUME_UNCHANGED="${resp[26]:-0}"
VCS_STATUS_COMMIT_ENCODING="${resp[27]-}"
VCS_STATUS_COMMIT_SUMMARY="${resp[28]-}"
VCS_STATUS_HAS_STAGED=$((VCS_STATUS_NUM_STAGED > 0))
if (( _GITSTATUS_DIRTY_MAX_INDEX_SIZE >= 0 &&
VCS_STATUS_INDEX_SIZE > _GITSTATUS_DIRTY_MAX_INDEX_SIZE_ )); then
VCS_STATUS_HAS_UNSTAGED=-1
VCS_STATUS_HAS_CONFLICTED=-1
VCS_STATUS_HAS_UNTRACKED=-1
else
VCS_STATUS_HAS_UNSTAGED=$((VCS_STATUS_NUM_UNSTAGED > 0))
VCS_STATUS_HAS_CONFLICTED=$((VCS_STATUS_NUM_CONFLICTED > 0))
VCS_STATUS_HAS_UNTRACKED=$((VCS_STATUS_NUM_UNTRACKED > 0))
fi
else
VCS_STATUS_RESULT=norepo-sync
unset VCS_STATUS_WORKDIR
unset VCS_STATUS_COMMIT
unset VCS_STATUS_LOCAL_BRANCH
unset VCS_STATUS_REMOTE_BRANCH
unset VCS_STATUS_REMOTE_NAME
unset VCS_STATUS_REMOTE_URL
unset VCS_STATUS_ACTION
unset VCS_STATUS_INDEX_SIZE
unset VCS_STATUS_NUM_STAGED
unset VCS_STATUS_NUM_UNSTAGED
unset VCS_STATUS_NUM_CONFLICTED
unset VCS_STATUS_NUM_UNTRACKED
unset VCS_STATUS_HAS_STAGED
unset VCS_STATUS_HAS_UNSTAGED
unset VCS_STATUS_HAS_CONFLICTED
unset VCS_STATUS_HAS_UNTRACKED
unset VCS_STATUS_COMMITS_AHEAD
unset VCS_STATUS_COMMITS_BEHIND
unset VCS_STATUS_STASHES
unset VCS_STATUS_TAG
unset VCS_STATUS_NUM_UNSTAGED_DELETED
unset VCS_STATUS_NUM_STAGED_NEW
unset VCS_STATUS_NUM_STAGED_DELETED
unset VCS_STATUS_PUSH_REMOTE_NAME
unset VCS_STATUS_PUSH_REMOTE_URL
unset VCS_STATUS_PUSH_COMMITS_AHEAD
unset VCS_STATUS_PUSH_COMMITS_BEHIND
unset VCS_STATUS_NUM_SKIP_WORKTREE
unset VCS_STATUS_NUM_ASSUME_UNCHANGED
unset VCS_STATUS_COMMIT_ENCODING
unset VCS_STATUS_COMMIT_SUMMARY
fi
}
# Usage: gitstatus_check.
#
# Returns 0 if and only if gitstatus_start has succeeded previously.
# If it returns non-zero, gitstatus_query is guaranteed to return non-zero.
function gitstatus_check() {
[[ -n "$GITSTATUS_DAEMON_PID" ]]
}
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