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408 lines
12 KiB
Bash
408 lines
12 KiB
Bash
#!/bin/sh
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#
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# This script does not have a stable API.
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_gitstatus_install_main() {
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if [ -n "${ZSH_VERSION:-}" ]; then
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emulate -L sh -o no_unset
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else
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set -u
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fi
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local argv1="$1"
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shift
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local no_check= no_install= uname_s= uname_m= gitstatus_dir= dl_status=
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local opt= OPTARG= OPTIND=1
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while getopts ':s:m:d:p:fnh' opt "$@"; do
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case "$opt" in
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h)
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command cat <<\END
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Usage: install [-s KERNEL] [-m ARCH] [-d DIR] [-p CMD] [-f|-n] [-- CMD [ARG]...]
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If positional arguments are specified, call this on success:
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CMD [ARG]... DAEMON VERSION INSTALLED
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DAEMON is path to gitstatusd. VERSION is a glob pattern for the
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version this daemon should support; it's supposed to be passed as
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-G to gitstatusd. INSTALLED is 1 if gitstatusd has just been
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downloaded and 0 otherwise.
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Options:
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-s KERNEL use this instead of lowercase `uname -s`
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-m ARCH use this instead of lowercase `uname -m`
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-d DIR use this instead of `dirname "$0"`
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-p CMD eval this every second while downloading gitstatusd
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-f download gitstatusd even if there is one locally
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-n do not download gitstatusd (fail instead)
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END
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return
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;;
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n)
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if [ -n "$no_install" ]; then
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>&2 echo "[gitstatus] error: duplicate option: -$opt"
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return 1
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fi
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no_install=1
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;;
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f)
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if [ -n "$no_check" ]; then
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>&2 echo "[gitstatus] error: duplicate option: -$opt"
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return 1
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fi
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no_check=1
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;;
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d)
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if [ -n "$gitstatus_dir" ]; then
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>&2 echo "[gitstatus] error: duplicate option: -$opt"
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return 1
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fi
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if [ -z "$OPTARG" ]; then
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>&2 echo "[error] incorrect value of -$opt: $OPTARG"
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return 1
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fi
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gitstatus_dir="$OPTARG"
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;;
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p)
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if [ -n "$dl_status" ]; then
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>&2 echo "[gitstatus] error: duplicate option: -$opt"
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return 1
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fi
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if [ -z "$OPTARG" ]; then
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>&2 echo "[error] incorrect value of -$opt: $OPTARG"
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return 1
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fi
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dl_status="$OPTARG"
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;;
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m)
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if [ -n "$uname_m" ]; then
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>&2 echo "[gitstatus] error: duplicate option: -$opt"
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return 1
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fi
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if [ -z "$OPTARG" ]; then
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>&2 echo "[error] incorrect value of -$opt: $OPTARG"
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return 1
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fi
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uname_m="$OPTARG"
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;;
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s)
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if [ -n "$uname_s" ]; then
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>&2 echo "[gitstatus] error: duplicate option: -$opt"
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return 1
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fi
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if [ -z "$OPTARG" ]; then
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>&2 echo "[error] incorrect value of -$opt: $OPTARG"
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return 1
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fi
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uname_s="$OPTARG"
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;;
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\?) >&2 echo "[gitstatus] error: invalid option: -$OPTARG" ; return 1;;
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:) >&2 echo "[gitstatus] error: missing required argument: -$OPTARG"; return 1;;
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*) >&2 echo "[gitstatus] internal error: unhandled option: -$opt" ; return 1;;
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esac
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done
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shift "$((OPTIND - 1))"
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: "${gitstatus_dir:=$argv1}"
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if [ -n "$no_check" -a -n "$no_install" ]; then
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>&2 echo "[gitstatus] error: incompatible options: -f, -n"
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return 1
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fi
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if [ -z "$uname_s" ]; then
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uname_s="$(command uname -s)" || return
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uname_s="$(printf '%s' "$uname_s" | command tr '[A-Z]' '[a-z]')" || return
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fi
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if [ -z "$uname_m" ]; then
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uname_m="$(command uname -m)" || return
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uname_m="$(printf '%s' "$uname_m" | command tr '[A-Z]' '[a-z]')" || return
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fi
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local daemon="${GITSTATUS_DAEMON:-}"
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local cache_dir="${GITSTATUS_CACHE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/gitstatus}"
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if [ -z "$no_check" ]; then
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if [ -n "${daemon##/*}" ]; then
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>&2 echo "[gitstatus] error: GITSTATUS_DAEMON is not absolute path: $daemon"
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return 1
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fi
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if [ -z "$daemon" -a -e "$gitstatus_dir"/usrbin/gitstatusd ]; then
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daemon="$gitstatus_dir"/usrbin/gitstatusd
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fi
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if [ -n "$daemon" ]; then
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local gitstatus_version= libgit2_version=
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if ! . "$gitstatus_dir"/build.info; then
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>&2 echo "[gitstatus] internal error: failed to source build.info"
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return 1
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fi
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if [ -z "$gitstatus_version" ]; then
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>&2 echo "[gitstatus] internal error: empty gitstatus_version in build.info"
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return 1
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fi
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[ $# = 0 ] || "$@" "$daemon" "$gitstatus_version" 0
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return
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fi
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fi
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while IFS= read -r line; do
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line="${line###*}"
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[ -n "$line" ] || continue
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local uname_s_glob= uname_m_glob= file= version= sha256=
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eval "$line" || return
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if [ -z "$uname_s_glob" -o \
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-z "$uname_m_glob" -o \
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-z "$file" -o \
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-z "$version" -o \
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-z "$sha256" ]; then
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>&2 echo "[gitstatus] internal error: invalid install.info line: $line"
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return 1
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fi
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case "$uname_s" in
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$uname_s_glob) ;;
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*) continue;;
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esac
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case "$uname_m" in
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$uname_m_glob) ;;
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*) continue;;
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esac
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# Found a match. The while loop will terminate during this iteration.
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if [ -z "$no_check" ]; then
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# Check if a suitable gitstatusd already exists.
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local daemon="$gitstatus_dir"/usrbin/"$file"
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if [ ! -e "$daemon" ]; then
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daemon="$cache_dir"/"$file"
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[ -e "$daemon" ] || daemon=
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fi
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if [ -n "$daemon" ]; then
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[ $# = 0 ] || "$@" "$daemon" "$version" 0
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return
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fi
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fi
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# No suitable gitstatusd exists. Need to download.
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if [ -n "$no_install" ]; then
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>&2 echo "[gitstatus] error: no gitstatusd found and installation is disabled"
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return 1
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fi
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local daemon="$cache_dir"/"$file"
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if [ -n "${cache_dir##/*}" ]; then
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>&2 echo "[gitstatus] error: GITSTATUS_CACHE_DIR is not absolute: $cache_dir"
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return 1
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fi
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[ -d "$cache_dir" ] || mkdir -p -- "$cache_dir" || return
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local tmpdir
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if ! command -v mktemp >/dev/null 2>&1 ||
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! tmpdir="$(command mktemp -d "${TMPDIR:-/tmp}"/gitstatus-install.XXXXXXXXXX)"; then
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tmpdir="${TMPDIR:-/tmp}/gitstatus-install.tmp.$$"
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mkdir -p -- "$tmpdir" || return
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fi
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if ! command -v curl >/dev/null 2>&1 && ! command -v wget >/dev/null 2>&1; then
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>&2 echo "[gitstatus] error: please install curl or wget"
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return 1
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fi
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(
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run_cmd() {
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command -v "$1" >/dev/null 2>/dev/null || return 127
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local trapped= pid die ret
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trap 'trapped=1' $sig
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# The only reason for suppressing stderr is that `curl -f` cannot be silenced:
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# `-s` doesn't work despite what the docs say.
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command "$@" 2>/dev/null &
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ret="$?"
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if [ "$ret" = 0 ]; then
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pid="$!"
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die="trap - $sig; kill -- $pid 2>/dev/null; wait -- $pid 2>/dev/null; exit 1"
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trap "$die" $sig
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[ -z "$trapped" ] || eval "$die"
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wait -- "$pid" 2>/dev/null
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ret="$?"
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fi
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trap - $sig
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[ -z "$trapped" ] || exit
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return "$ret"
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}
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check_sha256() {
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local data_file="$tmpdir"/"$1".tar.gz
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local hash_file="$tmpdir"/"$1".tar.gz.sha256
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local hash=
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if command -v shasum >/dev/null 2>/dev/null; then
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if run_cmd shasum -b -a 256 -- "$data_file" >"$hash_file"; then
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IFS= read -r hash <"$hash_file" || hash=
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hash="${hash%% *}"
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fi
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elif command -v sha256sum >/dev/null 2>/dev/null; then
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if run_cmd sha256sum -b -- "$data_file" >"$hash_file"; then
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IFS= read -r hash <"$hash_file" || hash=
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hash="${hash%% *}"
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fi
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elif command -v sha256 >/dev/null 2>/dev/null; then
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if run_cmd sha256 -- "$data_file" </dev/null >"$hash_file"; then
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IFS= read -r hash <"$hash_file" || hash=
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# Ignore sha256 output if it's from hashalot. It's incompatible.
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if [ ${#hash} -lt 64 ]; then
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hash=
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else
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hash="${hash##* }"
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fi
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fi
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fi
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[ "$1" = 1 -a -z "$hash" -o "$hash" = "$sha256" ]
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}
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local url1="https://github.com/romkatv/gitstatus/releases/download/$version/$file.tar.gz"
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local url2="https://gitee.com/romkatv/gitstatus/raw/release-$version/release/$file.tar.gz"
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local sig='INT QUIT TERM ILL PIPE'
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fetch() {
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if [ "$1" != 1 ] && command -v sleep >/dev/null 2>/dev/null; then
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if ! run_cmd sleep "$1"; then
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echo -n >"$tmpdir"/"$1".status
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return 1
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fi
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fi
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local cmd part url ret
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for cmd in 'curl -q -fsSL' 'wget --no-config -qO-' 'wget -qO-' 'curl -fsSL'; do
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part=0
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while true; do
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if [ "$part" = 2 ]; then
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ret=1
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break
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elif [ "$part" = 0 ]; then
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url="$2"
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else
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url="$2"."$part"
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fi
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run_cmd $cmd -- "$url" >>"$tmpdir"/"$1".tar.gz
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ret="$?"
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[ "$ret" = 0 ] || break
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check_sha256 "$1" && break
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part=$((part+1))
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done
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[ "$ret" = 0 ] && break
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run_cmd rm -f -- "$tmpdir"/"$1".tar.gz && continue
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ret="$?"
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break
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done
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echo -n >"$tmpdir"/"$1".status
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return "$ret"
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}
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local trapped=
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trap 'trapped=1' $sig
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fetch 1 "$url1" &
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local pid1="$!"
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fetch 2 "$url2" &
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local pid2="$!"
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local die="trap - $sig; kill -- $pid1 $pid2 2>/dev/null; wait -- $pid1 $pid2 2>/dev/null; exit 1"
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trap "$die" $sig
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[ -z "$trapped" ] || eval "$die"
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local n=
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while true; do
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[ -z "$dl_status" ] || eval "$dl_status" || eval "$die"
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if command -v sleep >/dev/null 2>/dev/null; then
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command sleep 1
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elif command -v true >/dev/null 2>/dev/null; then
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command true
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fi
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if [ -n "$pid1" -a -e "$tmpdir"/1.status ]; then
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wait -- "$pid1" 2>/dev/null
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local ret="$?"
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pid1=
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if [ "$ret" = 0 ]; then
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if [ -n "$pid2" ]; then
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kill -- "$pid2" 2>/dev/null
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wait -- "$pid2" 2>/dev/null
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fi
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n=1
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break
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elif [ -z "$pid2" ]; then
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break
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else
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die="trap - $sig; kill -- $pid2 2>/dev/null; wait -- $pid2 2>/dev/null; exit 1"
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trap "$die" $sig
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fi
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elif [ -n "$pid2" -a -e "$tmpdir"/2.status ]; then
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wait -- "$pid2" 2>/dev/null
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local ret="$?"
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pid2=
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if [ "$ret" = 0 ]; then
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if [ -n "$pid1" ]; then
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kill -- "$pid1" 2>/dev/null
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wait -- "$pid1" 2>/dev/null
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fi
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n=2
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break
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elif [ -z "$pid1" ]; then
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break
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else
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die="trap - $sig; kill -- $pid1 2>/dev/null; wait -- $pid1 2>/dev/null; exit 1"
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trap "$die" $sig
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fi
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fi
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done
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trap - $sig
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if [ -z "$n" ]; then
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>&2 echo "[gitstatus] error: failed to download gitstatusd from any mirror"
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>&2 echo ""
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>&2 echo " 1. $url1"
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>&2 echo " 2. $url2"
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exit 1
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fi
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command tar -C "$tmpdir" -xzf "$tmpdir"/"$n".tar.gz || exit
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local tmpfile
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if ! command -v mktemp >/dev/null 2>&1 ||
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! tmpfile="$(command mktemp "$cache_dir"/gitstatusd.XXXXXXXXXX)"; then
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tmpfile="$cache_dir"/gitstatusd.tmp.$$
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fi
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command mv -f -- "$tmpdir"/gitstatusd-* "$tmpfile" || exit
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command mv -f -- "$tmpfile" "$cache_dir"/"$file" && exit
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command rm -f -- "$cache_dir"/"$file"
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command mv -f -- "$tmpfile" "$cache_dir"/"$file" && exit
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command rm -f -- "$tmpfile"
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exit 1
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)
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local ret="$?"
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command rm -rf -- "$tmpdir"
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[ "$ret" = 0 ] || return
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[ $# = 0 ] || "$@" "$daemon" "$version" 1
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return
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done <"$gitstatus_dir"/install.info
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>&2 echo "[gitstatus] error: no gitstatusd found for $uname_s $uname_m"
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>&2 echo ""
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>&2 echo "See: https://github.com/romkatv/gitstatus/blob/master/README.md#compiling"
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return 1
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}
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if [ -z "${0##*/*}" ]; then
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_gitstatus_install_main "${0%/*}" "$@"
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else
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_gitstatus_install_main . "$@"
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fi
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