powerlevel10k/install
romkatv a6009c74a9 Squashed 'gitstatus/' changes from f81313e2..1a80249d
1a80249d build: verify libgit2 tarball sha256
74c3d56f bash: call mktemp only once and avoid `mktemp -u`
b139dec4 install: use mktemp if available
9f594d24 bash: block SIGQUIT and SIGTSTP in daemon
73f47ea3 add sha256 verification for downloaded gitstatusd; enable gitee mirror

git-subtree-dir: gitstatus
git-subtree-split: 1a80249d2b6a53fd076ae846f8fcc501183ca5a5
2020-05-13 09:40:53 +02:00

378 lines
11 KiB
Bash
Executable File

#!/bin/sh
#
# This script does not have a stable API.
_gitstatus_install_main() {
if [ -n "${ZSH_VERSION:-}" ]; then
emulate -L sh -o no_unset
else
set -u
fi
local argv1=$1
shift
local no_check= no_install= uname_s= uname_m= gitstatus_dir= dl_status=
local opt= OPTARG= OPTIND=1
while getopts ':s:m:d:p:fnh' opt "$@"; do
case "$opt" in
h)
command cat <<\END
Usage: install [-s KERNEL] [-m ARCH] [-d DIR] [-p CMD] [-f|-n] [-- CMD [ARG]...]
If positional arguments are specified, call this on success:
CMD [ARG]... DAEMON VERSION INSTALLED
DAEMON is path to gitstatusd. VERSION is a glob pattern for the
version this daemon should support; it's supposed to be passed as
-G to gitstatusd. INSTALLED is 1 if gitstatusd has just been
downloaded and 0 otherwise.
Options:
-s KERNEL use this instead of lowercase `uname -s`
-m ARCH use this instead of lowercase `uname -m`
-d DIR use this instead of `dirname "$0"`
-p CMD eval this every second while downloading gitstatusd
-f download gitstatusd even if there is one locally
-n do not download gitstatusd (fail instead)
END
return
;;
n)
if [ -n "$no_install" ]; then
>&2 echo "[gitstatus] error: duplicate option: -$opt"
return 1
fi
no_install=1
;;
f)
if [ -n "$no_check" ]; then
>&2 echo "[gitstatus] error: duplicate option: -$opt"
return 1
fi
no_check=1
;;
d)
if [ -n "$gitstatus_dir" ]; then
>&2 echo "[gitstatus] error: duplicate option: -$opt"
return 1
fi
if [ -z "$OPTARG" ]; then
>&2 echo "[error] incorrect value of -$opt: $OPTARG"
return 1
fi
gitstatus_dir="$OPTARG"
;;
p)
if [ -n "$dl_status" ]; then
>&2 echo "[gitstatus] error: duplicate option: -$opt"
return 1
fi
if [ -z "$OPTARG" ]; then
>&2 echo "[error] incorrect value of -$opt: $OPTARG"
return 1
fi
dl_status="$OPTARG"
;;
m)
if [ -n "$uname_m" ]; then
>&2 echo "[gitstatus] error: duplicate option: -$opt"
return 1
fi
if [ -z "$OPTARG" ]; then
>&2 echo "[error] incorrect value of -$opt: $OPTARG"
return 1
fi
uname_m="$OPTARG"
;;
s)
if [ -n "$uname_s" ]; then
>&2 echo "[gitstatus] error: duplicate option: -$opt"
return 1
fi
if [ -z "$OPTARG" ]; then
>&2 echo "[error] incorrect value of -$opt: $OPTARG"
return 1
fi
uname_s="$OPTARG"
;;
\?) >&2 echo "[gitstatus] error: invalid option: -$OPTARG" ; return 1;;
:) >&2 echo "[gitstatus] error: missing required argument: -$OPTARG"; return 1;;
*) >&2 echo "[gitstatus] internal error: unhandled option: -$opt" ; return 1;;
esac
done
shift "$((OPTIND - 1))"
: "${gitstatus_dir:=$argv1}"
if [ -n "$no_check" -a -n "$no_install" ]; then
>&2 echo "[gitstatus] error: incompatible options: -f, -n"
return 1
fi
if [ -z "$uname_s" ]; then
uname_s="$(command uname -s)" || return
uname_s="$(printf '%s' "$uname_s" | command tr '[A-Z]' '[a-z]')" || return
fi
if [ -z "$uname_m" ]; then
uname_m="$(command uname -m)" || return
uname_m="$(printf '%s' "$uname_m" | command tr '[A-Z]' '[a-z]')" || return
fi
local daemon="${GITSTATUS_DAEMON:-}"
local cache_dir="${GITSTATUS_CACHE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/gitstatus}"
if [ -z "$no_check" ]; then
if [ -n "${daemon##/*}" ]; then
>&2 echo "[gitstatus] error: GITSTATUS_DAEMON is not absolute path: $daemon"
return 1
fi
if [ -z "$daemon" ]; then
daemon="$gitstatus_dir"/usrbin/gitstatusd
if [ ! -e "$daemon" ]; then
daemon="$daemon"-"$uname_s"-"$uname_m"
if [ ! -e "$daemon" ]; then
daemon=
fi
fi
fi
if [ -n "$daemon" ]; then
local gitstatus_version= libgit2_version=
if ! . "$gitstatus_dir"/build.info; then
>&2 echo "[gitstatus] internal error: failed to source build.info"
return 1
fi
if [ -z "$gitstatus_version" ]; then
>&2 echo "[gitstatus] internal error: empty gitstatus_version in build.info"
return 1
fi
[ $# = 0 ] || "$@" "$daemon" "$gitstatus_version" 0
return
fi
fi
while IFS= read -r line; do
line="${line###*}"
[ -n "$line" ] || continue
local uname_s_glob= uname_m_glob= file= version= sha256=
eval "$line" || return
if [ -z "$uname_s_glob" -o \
-z "$uname_m_glob" -o \
-z "$file" -o \
-z "$version" -o \
-z "$sha256" ]; then
>&2 echo "[gitstatus] internal error: invalid install.info line: $line"
return 1
fi
case "$uname_s" in
$uname_s_glob) ;;
*) continue;;
esac
case "$uname_m" in
$uname_m_glob) ;;
*) continue;;
esac
# Found a match. The while loop will terminate during this iteration.
if [ -z "$no_check" ]; then
# Check if a suitable gitstatusd already exists.
local daemon="$cache_dir"/"$file"
if [ -e "$daemon" ]; then
[ $# = 0 ] || "$@" "$daemon" "$version" 0
return
fi
daemon="$daemon"-"$uname_s"-"$uname_m"
if [ -e "$daemon" ]; then
local gitstatus_version= libgit2_version=
if ! . "$gitstatus_dir"/build.info; then
>&2 echo "[gitstatus] internal error: failed to source build.info"
return 1
fi
if [ -z "$gitstatus_version" ]; then
>&2 echo "[gitstatus] internal error: empty gitstatus_version in build.info"
return 1
fi
[ $# = 0 ] || "$@" "$daemon" "$gitstatus_version" 0
return
fi
fi
# No suitable gitstatusd exists. Need to download.
if [ -n "$no_install" ]; then
>&2 echo "[gitstatus] error: no gitstatusd found and installation is disabled"
return 1
fi
local daemon="$cache_dir"/"$file"
if [ -n "${cache_dir##/*}" ]; then
>&2 echo "[gitstatus] error: GITSTATUS_CACHE_DIR is not absolute: $cache_dir"
return 1
fi
[ -d "$cache_dir" ] || mkdir -p -- "$cache_dir" || return
local tmpdir
if ! command -v mktemp >/dev/null 2>&1 ||
! tmpdir="$(command mktemp -d "${TMPDIR:-/tmp}"/gitstatus-install.XXXXXXXXXX)"; then
tmpdir="${TMPDIR:-/tmp}/gitstatus-install.tmp.$$"
mkdir -p -- "$tmpdir" || return
fi
(
if [ -n "${ZSH_VERSION:-}" ]; then
builtin cd -q -- "$tmpdir" || exit
else
cd -- "$tmpdir" || exit
fi
local fetch
if command -v curl >/dev/null 2>&1; then
fetch="command curl -fsSLo"
elif command -v wget >/dev/null 2>&1; then
fetch="command wget -O"
else
>&2 echo "[gitstatus] error: please install curl or wget"
exit 1
fi
local url1="https://github.com/romkatv/gitstatus/releases/download/$version/$file.tar.gz"
local url2="https://gitee.com/romkatv/gitstatus/raw/release-$version/release/$file.tar.gz"
check_sha256() {
local file="$1".tar.gz
local hash=
if command -v shasum >/dev/null 2>/dev/null; then
hash="$(command shasum -b -a 256 -- "$file")" || hash=
hash="${hash%% *}"
elif command -v sha256sum >/dev/null 2>/dev/null; then
hash="$(command sha256sum -b -- "$file")" || hash=
hash="${hash%% *}"
elif command -v sha256 >/dev/null 2>/dev/null; then
hash="$(command sha256 -- "$file" </dev/null)" || hash=
# Ignore sha256 output if it's from hashalot. It's incompatible.
if [ ${#hash} -lt 64 ]; then
hash=
else
hash="${hash##* }"
fi
fi
[ "$1" = 1 -a -z "$hash" -o "$hash" = "$sha256" ]
}
local sig='INT QUIT TERM ILL PIPE'
fetch() {
local trapped=
trap 'trapped=1' $sig
if [ "$1" != 1 ] && command -v sleep >/dev/null 2>/dev/null; then
sleep "$1"
fi
$fetch "$1".tar.gz -- "$2" 2>/dev/null &
local pid=$!
local die="trap - $sig; kill -- $pid 2>/dev/null; exit 1"
trap "$die" $sig
[ -z "$trapped" ] || eval "$die"
wait -- "$pid" 2>/dev/null && check_sha256 "$1"
local ret="$?"
echo -n >"$1".status
trap - $sig
return "$ret"
}
local trapped=
trap 'trapped=1' $sig
fetch 1 "$url1" &
local pid1=$!
fetch 2 "$url2" &
local pid2=$!
local die="trap - $sig; kill -- $pid1 $pid2 2>/dev/null; exit 1"
trap "$die" $sig
[ -z "$trapped" ] || eval "$die"
local n=
while true; do
[ -z "$dl_status" ] || eval "$dl_status" || eval "$die"
if command -v sleep >/dev/null 2>/dev/null; then
command sleep 1
elif command -v true >/dev/null 2>/dev/null; then
command true
fi
if [ -n "$pid1" -a -e 1.status ]; then
wait -- "$pid1" 2>/dev/null
local ret="$?"
pid1=
if [ "$ret" = 0 ]; then
[ -z "$pid2" ] || kill -- "$pid2" 2>/dev/null
n=1
break
elif [ -z "$pid2" ]; then
break
fi
elif [ -n "$pid2" -a -e 2.status ]; then
wait -- "$pid2" 2>/dev/null
local ret="$?"
pid2=
if [ "$ret" = 0 ]; then
[ -z "$pid1" ] || kill -- "$pid1" 2>/dev/null
n=2
break
elif [ -z "$pid1" ]; then
break
fi
fi
done
trap - $sig
if [ -z "$n" ]; then
>&2 echo "[gitstatus] error: failed to download gitstatusd from any mirror"
>&2 echo ""
>&2 echo " 1. $url1"
>&2 echo " 2. $url2"
exit 1
fi
command tar -xzf "$n".tar.gz || exit
local tmpfile
if ! command -v mktemp >/dev/null 2>&1 ||
! tmpfile="$(command mktemp "$cache_dir"/gitstatusd.XXXXXXXXXX)"; then
tmpfile="$cache_dir"/gitstatusd.tmp.$$
fi
command mv -f -- gitstatusd-* "$tmpfile" || exit
command mv -f -- "$tmpfile" "$cache_dir"/"$file" && exit
command rm -f -- "$cache_dir"/"$file"
command mv -f -- "$tmpfile" "$cache_dir"/"$file" && exit
command rm -f -- "$tmpfile"
exit 1
)
local ret=$?
command rm -rf -- "$tmpdir"
[ "$ret" = 0 ] || return
[ $# = 0 ] || "$@" "$daemon" "$version" 1
return
done <"$gitstatus_dir"/install.info
>&2 echo "[gitstatus] error: no gitstatusd found for $uname_s $uname_m"
return 1
}
if [ -z "${0##*/*}" ]; then
_gitstatus_install_main "${0%/*}" "$@"
else
_gitstatus_install_main . "$@"
fi