[wallet] add a wallet wrapper script

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

scripts/wallet.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+BUCKET=pub.harmony.one
+OS=$(uname -s)
+REL=cello
+
+if [ "$OS" == "Darwin" ]; then
+   FOLDER=release/$REL/darwin-x86_64/
+   BIN=( wallet wallet.ini libbls384.dylib libcrypto.1.0.0.dylib libgmp.10.dylib libgmpxx.4.dylib libmcl.dylib )
+fi
+if [ "$OS" == "Linux" ]; then
+   FOLDER=release/$REL/linux-x86_64/
+   BIN=( wallet wallet.ini libbls384.so libcrypto.so.10 libgmp.so.10 libgmpxx.so.4 libmcl.so )
+fi
+
+function usage
+{
+   cat<<EOT
+Usage: $0 [option] command
+
+Option:
+   -d          download all the binaries/config files (do it when updated)
+   -h          print this help
+
+Wallet Help:
+
+Actions:
+    1. new           - Generates a new account and store the private key locally
+    2. list          - Lists all accounts in local keystore
+    3. removeAll     - Removes all accounts in local keystore
+    4. import        - Imports a new account by private key
+        --privateKey     - the private key to import
+    5. balances      - Shows the balances of all addresses or specific address
+        --address        - The address to check balance for
+    6. getFreeToken  - Gets free token on each shard
+        --address        - The free token receiver account's address
+    7. transfer      - Transfer token from one account to another
+        --from           - The sender account's address or index in the local keystore
+        --to             - The receiver account's address
+        --amount         - The amount of token to transfer
+        --shardID        - The shard Id for the transfer
+        --inputData      - Base64-encoded input data to embed in the transaction
+EOT
+	exit 0
+}
+
+function do_download
+{
+# clean up old files
+	for bin in "${BIN[@]}"; do
+		rm -f ${bin}
+	done
+
+# download all the binaries
+	for bin in "${BIN[@]}"; do
+		curl http://${BUCKET}.s3.amazonaws.com/${FOLDER}${bin} -o ${bin}
+	done
+
+# set wallet.ini
+	mkdir -p .hmy
+	cp -f wallet.ini .hmy
+	chmod +x wallet
+
+	exit 0
+}
+
+download_only=false
+
+while getopts "dh" opt; do
+	case $opt in
+		h) usage ;;
+		d) download_only=true ;;
+		*) usage ;;
+	esac
+done
+
+shift $((OPTIND-1))
+
+if [ $download_only == "true" ]; then
+	do_download
+fi
+
+# Run Harmony Wallet
+if [ "$OS" == "Linux" ]; then
+   LD_LIBRARY_PATH=$(pwd) ./wallet $*
+else
+   DYLD_FALLBACK_LIBRARY_PATH=$(pwd) ./wallet $*
+fi