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resync downloader
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nickg committed May 20, 2017
1 parent c5a0679 commit 891115d
Showing 1 changed file with 90 additions and 39 deletions.
129 changes: 90 additions & 39 deletions godownloader-misspell.sh
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Expand Up @@ -28,7 +28,11 @@ but credits (and pull requests) appreciated.
------------------------------------------------------------------------
EOF
is_command() {
type $1 > /dev/null 2> /dev/null
command -v "$1" > /dev/null
}
uname_os() {
os=$(uname -s | tr '[:upper:]' '[:lower:]')
echo "$os"
}
uname_arch() {
arch=$(uname -m)
Expand All @@ -40,25 +44,58 @@ uname_arch() {
esac
echo ${arch}
}
uname_os() {
os=$(uname -s | tr '[:upper:]' '[:lower:]')
echo ${os}
uname_os_check() {
os=$(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
echo "$0: uname_os_check: internal error '$(uname -s)' got converted to '$os' which is not a GOOS value. Please file bug at https://github.com/client9/posixshell"
return 1
}
uname_arch_check() {
arch=$(uname_arch)
case "$arch" in
386) return 0 ;;
amd64) return 0 ;;
arm64) return 0 ;;
arm) 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
echo "$0: uname_arch_check: internal error '$(uname -m)' got converted to '$arch' which is not a GOARCH value. Please file bug report at https://github.com/client9/posixshell"
return 1
}
untar() {
tarball=$1
case ${tarball} in
*.tar.gz|*.tgz) tar -xzf ${tarball} ;;
*.tar) tar -xf ${tarball} ;;
*.zip) unzip ${tarball} ;;
case "${tarball}" in
*.tar.gz|*.tgz) tar -xzf "${tarball}" ;;
*.tar) tar -xf "${tarball}" ;;
*.zip) unzip "${tarball}" ;;
*)
echo "Unknown archive format for ${tarball}"
return 1
esac
}
mktmpdir() {
test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
mkdir -p ${TMPDIR}
echo ${TMPDIR}
mkdir -p "${TMPDIR}"
echo "${TMPDIR}"
}
http_download() {
local_file=$1
Expand Down Expand Up @@ -96,28 +133,27 @@ github_api() {
http_download "$local_file" "$source_url" "$header"
}
github_last_release() {
OWNER_REPO=$1
VERSION=$(github_api - https://api.github.com/repos/${OWNER_REPO}/releases/latest | grep -m 1 "\"name\":" | cut -d ":" -f 2 | tr -d ' ",')
if [ -z "${VERSION}" ]; then
echo "Unable to determine latest release for ${OWNER_REPO}"
return 1
fi
echo ${VERSION}
owner_repo=$1
giturl="https://api.github.com/repos/${owner_repo}/releases/latest"
html=$(github_api - "$giturl")
version=$(echo "$html" | grep -m 1 "\"name\":" | cut -d ":" -f 2 | tr -d ' ",')
test -z "$version" && return 1
echo "$version"
}
hash_sha256() {
TARGET=${1:-/dev/stdin};
if is_command gsha256sum; then
hash=$(gsha256sum $TARGET) || return 1
echo $hash | cut -d ' ' -f 1
hash=$(gsha256sum "$TARGET") || return 1
echo "$hash" | cut -d ' ' -f 1
elif is_command sha256sum; then
hash=$(sha256sum $TARGET) || return 1
echo $hash | cut -d ' ' -f 1
hash=$(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 $hash | cut -d ' ' -f 1
hash=$(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 $hash | cut -d ' ' -f a
hash=$(openssl -dst openssl dgst -sha256 "$TARGET") || return 1
echo "$hash" | cut -d ' ' -f a
else
echo "hash_sha256: unable to find command to compute sha-256 hash"
return 1
Expand All @@ -131,12 +167,12 @@ hash_sha256_verify() {
return 1
fi
BASENAME=${TARGET##*/}
want=$(grep ${BASENAME} "${checksums}" 2> /dev/null | tr '\t' ' ' | cut -d ' ' -f 1)
want=$(grep "${BASENAME}" "${checksums}" 2> /dev/null | tr '\t' ' ' | cut -d ' ' -f 1)
if [ -z "$want" ]; then
echo "hash_sha256_verify: unable to find checksum for '${TARGET}' in '${checksums}'"
return 1
fi
got=$(hash_sha256 $TARGET)
got=$(hash_sha256 "$TARGET")
if [ "$want" != "$got" ]; then
echo "hash_sha256_verify: checksum for '$TARGET' did not verify ${want} vs $got"
return 1
Expand All @@ -154,14 +190,24 @@ BINARY=misspell
FORMAT=tar.gz
BINDIR=${BINDIR:-./bin}

uname_os_check
uname_arch_check

VERSION=$1
if [ -z "${VERSION}" ]; then
usage $0
exit 1
fi
case "${VERSION}" in
latest)
VERSION=""
;;
-h|-?|*help*)
usage "$0"
exit 1
;;
esac

PREFIX="$OWNER/$REPO"

if [ "${VERSION}" = "latest" ]; then
echo "Checking GitHub for latest version of ${OWNER}/${REPO}"
if [ -z "${VERSION}" ]; then
echo "$PREFIX: checking GitHub for latest version"
VERSION=$(github_last_release "$OWNER/$REPO")
fi
# if version starts with 'v', remove it
Expand All @@ -186,6 +232,8 @@ amd64) ARCH=64-bit ;;
darwin) ARCH=macOS ;;
esac

echo "$PREFIX: found version ${VERSION} for ${OS}/${ARCH}"

NAME=${BINARY}_${VERSION}_${OS}_${ARCH}
TARBALL=${NAME}.${FORMAT}
TARBALL_URL=https://github.com/${OWNER}/${REPO}/releases/download/v${VERSION}/${TARBALL}
Expand All @@ -198,14 +246,17 @@ CHECKSUM_URL=https://github.com/${OWNER}/${REPO}/releases/download/v${VERSION}/$
# out preventing half-done work
execute() {
TMPDIR=$(mktmpdir)
http_download ${TMPDIR}/${TARBALL} ${TARBALL_URL}
echo "$PREFIX: downloading ${TARBALL_URL}"
http_download "${TMPDIR}/${TARBALL}" "${TARBALL_URL}"

http_download ${TMPDIR}/${CHECKSUM} ${CHECKSUM_URL}
hash_sha256_verify ${TMPDIR}/${TARBALL} ${TMPDIR}/${CHECKSUM}
echo "$PREFIX: verifying checksums"
http_download "${TMPDIR}/${CHECKSUM}" "${CHECKSUM_URL}"
hash_sha256_verify "${TMPDIR}/${TARBALL}" "${TMPDIR}/${CHECKSUM}"

(cd ${TMPDIR} && untar ${TARBALL})
install -d ${BINDIR}
install ${TMPDIR}/${BINARY} ${BINDIR}/
(cd "${TMPDIR}" && untar "${TARBALL}")
install -d "${BINDIR}"
install "${TMPDIR}/${BINARY}" "${BINDIR}/"
echo "$PREFIX: installed as ${BINDIR}/${BINARY}"
}

execute
Expand Down

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