Fix bitcoin-cli --version

By declaring the relevant option.

Note contrib/devtools/gen-manpages.sh relies on this version information.

Author: Empact

src/bitcoin-cli.cpp

@@ -35,6 +35,7 @@ static void SetupCliArgs()
     const auto testnetBaseParams = CreateBaseChainParams(CBaseChainParams::TESTNET);
 
     gArgs.AddArg("-?", "This help message", false, OptionsCategory::OPTIONS);
+    gArgs.AddArg("-version", "Print version and exit", false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-conf=<file>", strprintf("Specify configuration file. Relative paths will be prefixed by datadir location. (default: %s)", BITCOIN_CONF_FILENAME), false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-datadir=<dir>", "Specify data directory", false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-getinfo", "Get general information from the remote server. Note that unlike server-side RPC calls, the results of -getinfo is the result of multiple non-atomic requests. Some entries in the result may represent results from different states (e.g. wallet balance may be as of a different block from the chain state reported)", false, OptionsCategory::OPTIONS);

test/functional/interface_bitcoin_cli.py

@@ -15,6 +15,9 @@ def set_test_params(self):
     def run_test(self):
         """Main test logic"""
 
+        cli_response = self.nodes[0].cli("-version").send_cli()
+        assert("Bitcoin Core RPC client version" in cli_response)
+
         self.log.info("Compare responses from gewalletinfo RPC and `bitcoin-cli getwalletinfo`")
         cli_response = self.nodes[0].cli.getwalletinfo()
         rpc_response = self.nodes[0].getwalletinfo()