syft/install.sh

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#!/bin/sh
set -e
# Code generated by godownloader on 2020-08-10T20:55:46Z.
#
usage() {
this=$1
cat <<EOF
$this: download go binaries for anchore/syft
Usage: $this [-b] bindir [-d] [tag]
-b sets bindir or installation directory, Defaults to ./bin
-d turns on debug logging
[tag] is a tag from
https://github.com/anchore/syft/releases
If tag is missing, then the latest will be used.
Generated by godownloader
https://github.com/goreleaser/godownloader
EOF
exit 2
}
parse_args() {
#BINDIR is ./bin unless set be ENV
# over-ridden by flag below
BINDIR=${BINDIR:-./bin}
while getopts "b:dh?x" arg; do
case "$arg" in
b) BINDIR="$OPTARG" ;;
d) log_set_priority 10 ;;
h | \?) usage "$0" ;;
x) set -x ;;
esac
done
shift $((OPTIND - 1))
TAG=$1
}
# this function wraps all the destructive operations
# if a curl|bash cuts off the end of the script due to
# network, either nothing will happen or will syntax error
# out preventing half-done work
execute() {
tmpdir=$(mktemp -d)
log_debug "downloading files into ${tmpdir}"
http_download "${tmpdir}/${ARCHIVE}" "${ARCHIVE_URL}"
http_download "${tmpdir}/${CHECKSUM}" "${CHECKSUM_URL}"
# macOS has its own secure verification mechanism, and checksums.txt is not used.
if [ "$OS" != "darwin" ]; then
hash_sha256_verify "${tmpdir}/${ARCHIVE}" "${tmpdir}/${CHECKSUM}"
fi
srcdir="${tmpdir}"
(cd "${tmpdir}" && unpack "${ARCHIVE}")
test ! -d "${BINDIR}" && install -d "${BINDIR}"
for binexe in $BINARIES; do
if [ "$OS" = "windows" ]; then
binexe="${binexe}.exe"
fi
install "${srcdir}/${binexe}" "${BINDIR}/"
log_info "installed ${BINDIR}/${binexe}"
done
rm -rf "${tmpdir}"
}
get_binaries() {
case "$PLATFORM" in
darwin/amd64) BINARIES="syft" ;;
linux/amd64) BINARIES="syft" ;;
windows/amd64) BINARIES="syft" ;;
*)
log_crit "platform $PLATFORM is not supported. Make sure this script is up-to-date and file request at https://github.com/${PREFIX}/issues/new"
exit 1
;;
esac
}
tag_to_version() {
if [ -z "${TAG}" ]; then
log_info "checking GitHub for latest tag"
else
log_info "checking GitHub for tag '${TAG}'"
fi
REALTAG=$(github_release "$OWNER/$REPO" "${TAG}") && true
if test -z "$REALTAG"; then
log_crit "unable to find '${TAG}' - use 'latest' or see https://github.com/${PREFIX}/releases for details"
exit 1
fi
# if version starts with 'v', remove it
TAG="$REALTAG"
VERSION=${TAG#v}
}
adjust_format() {
# change format (tar.gz or zip) based on OS
case ${OS} in
darwin) FORMAT=dmg ;;
windows) FORMAT=zip ;;
esac
true
}
adjust_os() {
# adjust archive name based on OS
true
}
adjust_arch() {
# adjust archive name based on ARCH
true
}
cat /dev/null <<EOF
------------------------------------------------------------------------
https://github.com/client9/shlib - portable posix shell functions
Public domain - http://unlicense.org
https://github.com/client9/shlib/blob/master/LICENSE.md
but credit (and pull requests) appreciated.
------------------------------------------------------------------------
EOF
is_command() {
command -v "$1" >/dev/null
}
echoerr() {
echo "$@" 1>&2
}
log_prefix() {
echo "$0"
}
_logp=6
log_set_priority() {
_logp="$1"
}
log_priority() {
if test -z "$1"; then
echo "$_logp"
return
fi
[ "$1" -le "$_logp" ]
}
log_tag() {
case $1 in
0) echo "emerg" ;;
1) echo "alert" ;;
2) echo "crit" ;;
3) echo "err" ;;
4) echo "warning" ;;
5) echo "notice" ;;
6) echo "info" ;;
7) echo "debug" ;;
*) echo "$1" ;;
esac
}
log_debug() {
log_priority 7 || return 0
echoerr "$(log_prefix)" "$(log_tag 7)" "$@"
}
log_info() {
log_priority 6 || return 0
echoerr "$(log_prefix)" "$(log_tag 6)" "$@"
}
log_err() {
log_priority 3 || return 0
echoerr "$(log_prefix)" "$(log_tag 3)" "$@"
}
log_crit() {
log_priority 2 || return 0
echoerr "$(log_prefix)" "$(log_tag 2)" "$@"
}
uname_os() {
os=$(uname -s | tr '[:upper:]' '[:lower:]')
case "$os" in
cygwin_nt*) os="windows" ;;
mingw*) os="windows" ;;
msys_nt*) os="windows" ;;
esac
echo "$os"
}
uname_arch() {
arch=$(uname -m)
case $arch in
x86_64) arch="amd64" ;;
x86) arch="386" ;;
i686) arch="386" ;;
i386) arch="386" ;;
aarch64) arch="arm64" ;;
armv5*) arch="armv5" ;;
armv6*) arch="armv6" ;;
armv7*) arch="armv7" ;;
esac
echo ${arch}
}
uname_os_check() {
os=$(uname_os)
case "$os" in
darwin) return 0 ;;
dragonfly) return 0 ;;
freebsd) return 0 ;;
linux) return 0 ;;
android) return 0 ;;
nacl) return 0 ;;
netbsd) return 0 ;;
openbsd) return 0 ;;
plan9) return 0 ;;
solaris) return 0 ;;
windows) return 0 ;;
esac
log_crit "uname_os_check '$(uname -s)' got converted to '$os' which is not a GOOS value. Please file bug at https://github.com/client9/shlib"
return 1
}
uname_arch_check() {
arch=$(uname_arch)
case "$arch" in
386) return 0 ;;
amd64) return 0 ;;
arm64) return 0 ;;
armv5) return 0 ;;
armv6) return 0 ;;
armv7) return 0 ;;
ppc64) return 0 ;;
ppc64le) return 0 ;;
mips) return 0 ;;
mipsle) return 0 ;;
mips64) return 0 ;;
mips64le) return 0 ;;
s390x) return 0 ;;
amd64p32) return 0 ;;
esac
log_crit "uname_arch_check '$(uname -m)' got converted to '$arch' which is not a GOARCH value. Please file bug report at https://github.com/client9/shlib"
return 1
}
unpack() {
archive=$1
case "${archive}" in
*.tar.gz | *.tgz) tar --no-same-owner -xzf "${archive}" ;;
*.tar) tar --no-same-owner -xf "${archive}" ;;
*.zip) unzip "${archive}" ;;
*.dmg) extract_from_dmg "${archive}" ;;
*)
log_err "unpack unknown archive format for ${archive}"
return 1
;;
esac
}
extract_from_dmg() {
dmg_file=$1
mount_point="/Volumes/tmp-dmg"
hdiutil attach -quiet -nobrowse -mountpoint "${mount_point}" "${dmg_file}"
cp -fR "${mount_point}/" ./
hdiutil detach -quiet -force "${mount_point}"
}
http_download_curl() {
local_file=$1
source_url=$2
header=$3
if [ -z "$header" ]; then
code=$(curl -w '%{http_code}' -sL -o "$local_file" "$source_url")
else
code=$(curl -w '%{http_code}' -sL -H "$header" -o "$local_file" "$source_url")
fi
if [ "$code" != "200" ]; then
log_debug "http_download_curl received HTTP status $code"
return 1
fi
return 0
}
http_download_wget() {
local_file=$1
source_url=$2
header=$3
if [ -z "$header" ]; then
wget -q -O "$local_file" "$source_url"
else
wget -q --header "$header" -O "$local_file" "$source_url"
fi
}
http_download() {
log_debug "http_download $2"
if is_command curl; then
http_download_curl "$@"
return
elif is_command wget; then
http_download_wget "$@"
return
fi
log_crit "http_download unable to find wget or curl"
return 1
}
http_copy() {
tmp=$(mktemp)
http_download "${tmp}" "$1" "$2" || return 1
body=$(cat "$tmp")
rm -f "${tmp}"
echo "$body"
}
github_release() {
owner_repo=$1
version=$2
test -z "$version" && version="latest"
giturl="https://github.com/${owner_repo}/releases/${version}"
json=$(http_copy "$giturl" "Accept:application/json")
test -z "$json" && return 1
version=$(echo "$json" | tr -s '\n' ' ' | sed 's/.*"tag_name":"//' | sed 's/".*//')
test -z "$version" && return 1
echo "$version"
}
hash_sha256() {
TARGET=${1:-/dev/stdin}
if is_command gsha256sum; then
hash=$(gsha256sum "$TARGET") || return 1
echo "$hash" | cut -d ' ' -f 1
elif is_command sha256sum; then
hash=$(sha256sum "$TARGET") || return 1
echo "$hash" | cut -d ' ' -f 1
elif is_command shasum; then
hash=$(shasum -a 256 "$TARGET" 2>/dev/null) || return 1
echo "$hash" | cut -d ' ' -f 1
elif is_command openssl; then
hash=$(openssl -dst openssl dgst -sha256 "$TARGET") || return 1
echo "$hash" | cut -d ' ' -f a
else
log_crit "hash_sha256 unable to find command to compute sha-256 hash"
return 1
fi
}
hash_sha256_verify() {
TARGET=$1
checksums=$2
if [ -z "$checksums" ]; then
log_err "hash_sha256_verify checksum file not specified in arg2"
return 1
fi
BASENAME=${TARGET##*/}
want=$(grep "${BASENAME}" "${checksums}" 2>/dev/null | tr '\t' ' ' | cut -d ' ' -f 1)
if [ -z "$want" ]; then
log_err "hash_sha256_verify unable to find checksum for '${TARGET}' in '${checksums}'"
return 1
fi
got=$(hash_sha256 "$TARGET")
if [ "$want" != "$got" ]; then
log_err "hash_sha256_verify checksum for '$TARGET' did not verify ${want} vs $got"
return 1
fi
}
cat /dev/null <<EOF
------------------------------------------------------------------------
End of functions from https://github.com/client9/shlib
------------------------------------------------------------------------
EOF
PROJECT_NAME="syft"
OWNER=anchore
REPO="syft"
BINARY=syft
FORMAT=tar.gz
OS=$(uname_os)
ARCH=$(uname_arch)
PREFIX="$OWNER/$REPO"
# use in logging routines
log_prefix() {
echo "$PREFIX"
}
PLATFORM="${OS}/${ARCH}"
GITHUB_DOWNLOAD=https://github.com/${OWNER}/${REPO}/releases/download
uname_os_check "$OS"
uname_arch_check "$ARCH"
parse_args "$@"
get_binaries
tag_to_version
adjust_format
adjust_os
adjust_arch
log_info "found version: ${VERSION} for ${TAG}/${OS}/${ARCH}"
NAME=${PROJECT_NAME}_${VERSION}_${OS}_${ARCH}
ARCHIVE=${NAME}.${FORMAT}
ARCHIVE_URL=${GITHUB_DOWNLOAD}/${TAG}/${ARCHIVE}
CHECKSUM=${PROJECT_NAME}_${VERSION}_checksums.txt
CHECKSUM_URL=${GITHUB_DOWNLOAD}/${TAG}/${CHECKSUM}
execute