[node.sh] add -d option

-d              download only

Signed-off-by: Leo Chen <leo@harmony.one>

scripts/node.sh

@@ -101,6 +101,7 @@ usage: ${progname} [-1ch] [-k KEYFILE]
    -s             run setup env only (must run as root)
    -S             run the ${progname} as non-root user (default: run as root)
    -p passfile    use the given BLS passphrase file
+   -d             just download the Harmony binaries (default: off)
    -D             do not download Harmony binaries (default: download when start)
    -m             collect and upload node metrics to harmony prometheus + grafana
    -N network     join the given network (main, beta, pangaea; default: main)
@@ -119,18 +120,23 @@ usage() {
    exit 64  # EX_USAGE
 }
 
+# =======
+BUCKET=pub.harmony.one
+OS=$(uname -s)
+
 unset start_clean loop run_as_root blspass do_not_download metrics network
 start_clean=false
 loop=true
 run_as_root=true
 do_not_download=false
+download_only=false
 metrics=false
 network=main
 ${BLSKEYFILE=}
 
 unset OPTIND OPTARG opt
 OPTIND=1
-while getopts :1chk:sSp:DmN:t opt
+while getopts :1chk:sSp:dDmN:t opt
 do
    case "${opt}" in
    '?') usage "unrecognized option -${OPTARG}";;
@@ -142,6 +148,7 @@ do
    s) setup_env; exit 0;;
    S) run_as_root=false ;;
    p) blspass="${OPTARG}";;
+   d) download_only=true;;
    D) do_not_download=true;;
    m) metrics=true;;
    N) network="${OPTARG}";;
@@ -195,43 +202,6 @@ case $# in
    ;;
 esac
 
-if ${run_as_root}; then
-   check_root
-fi
-
-case "${BLSKEYFILE}" in
-"")
-   unset -v f
-   for f in \
-      ~/*--????-??-??T??-??-??.*Z--bls_???????????????????????????????????????????????????????????????????????????????????????????????? \
-      ~/????????????????????????????????????????????????????????????????????????????????????????????????.key \
-      *--????-??-??T??-??-??.*Z--bls_???????????????????????????????????????????????????????????????????????????????????????????????? \
-      ????????????????????????????????????????????????????????????????????????????????????????????????.key
-   do
-      [ -f "${f}" ] || continue
-      case "${BLSKEYFILE}" in
-      "")
-         BLSKEYFILE="${f}"
-         ;;
-      *)
-         [ "${f}" -ef "${BLSKEYFILE}" ] || \
-            err 69 "multiple key files found (${f}, ${BLSKEYFILE}); please use -k to specify"
-         ;;
-      esac
-   done
-   case "${BLSKEYFILE}" in
-   "") err 69 "could not autodetect BLS key file; please use -k to specify";;
-   esac
-   msg "autodetected BLS key file: ${BLSKEYFILE}"
-   ;;
-*)
-   msg "using manually specified BLS key file: ${BLSKEYFILE}"
-   ;;
-esac
-
-BUCKET=pub.harmony.one
-OS=$(uname -s)
-
 if [ "$OS" == "Darwin" ]; then
    FOLDER=release/darwin-x86_64/$REL/
    BIN=( harmony libbls384_256.dylib libcrypto.1.0.0.dylib libgmp.10.dylib libgmpxx.4.dylib libmcl.dylib md5sum.txt )
@@ -241,21 +211,6 @@ if [ "$OS" == "Linux" ]; then
    BIN=( harmony libbls384_256.so libcrypto.so.10 libgmp.so.10 libgmpxx.so.4 libmcl.so md5sum.txt )
 fi
 
-any_new_binaries() {
-   local outdir
-   ${do_not_download} && return 0
-   outdir="${1:-.}"
-   mkdir -p "${outdir}"
-   curl -sSf http://${BUCKET}.s3.amazonaws.com/${FOLDER}md5sum.txt -o "${outdir}/md5sum.txt.new" || return $?
-   if diff $outdir/md5sum.txt.new md5sum.txt
-   then
-      rm "${outdir}/md5sum.txt.new"
-   else
-      mv "${outdir}/md5sum.txt.new" "${outdir}/md5sum.txt"
-      return 1
-   fi
-}
-
 extract_checksum() {
    awk -v basename="${1}" '
       {
@@ -291,7 +246,6 @@ verify_checksum() {
    return 0
 }
 
-
 download_binaries() {
    local outdir
    ${do_not_download} && return 0
@@ -306,6 +260,60 @@ download_binaries() {
    (cd "${outdir}" && exec openssl sha256 "${BIN[@]}") > "${outdir}/harmony-checksums.txt"
 }
 
+if ${download_only}; then
+   download_binaries || err 69 "download node software failed"
+   exit 0
+fi
+
+if ${run_as_root}; then
+   check_root
+fi
+
+case "${BLSKEYFILE}" in
+"")
+   unset -v f
+   for f in \
+      ~/*--????-??-??T??-??-??.*Z--bls_???????????????????????????????????????????????????????????????????????????????????????????????? \
+      ~/????????????????????????????????????????????????????????????????????????????????????????????????.key \
+      *--????-??-??T??-??-??.*Z--bls_???????????????????????????????????????????????????????????????????????????????????????????????? \
+      ????????????????????????????????????????????????????????????????????????????????????????????????.key
+   do
+      [ -f "${f}" ] || continue
+      case "${BLSKEYFILE}" in
+      "")
+         BLSKEYFILE="${f}"
+         ;;
+      *)
+         [ "${f}" -ef "${BLSKEYFILE}" ] || \
+            err 69 "multiple key files found (${f}, ${BLSKEYFILE}); please use -k to specify"
+         ;;
+      esac
+   done
+   case "${BLSKEYFILE}" in
+   "") err 69 "could not autodetect BLS key file; please use -k to specify";;
+   esac
+   msg "autodetected BLS key file: ${BLSKEYFILE}"
+   ;;
+*)
+   msg "using manually specified BLS key file: ${BLSKEYFILE}"
+   ;;
+esac
+
+any_new_binaries() {
+   local outdir
+   ${do_not_download} && return 0
+   outdir="${1:-.}"
+   mkdir -p "${outdir}"
+   curl -sSf http://${BUCKET}.s3.amazonaws.com/${FOLDER}md5sum.txt -o "${outdir}/md5sum.txt.new" || return $?
+   if diff $outdir/md5sum.txt.new md5sum.txt
+   then
+      rm "${outdir}/md5sum.txt.new"
+   else
+      mv "${outdir}/md5sum.txt.new" "${outdir}/md5sum.txt"
+      return 1
+   fi
+}
+
 if any_new_binaries
 then
    msg "binaries did not change"