Move CLI fee payer arg into clap-utils

clap-utils/src/fee_payer.rs

@@ -0,0 +1,19 @@
+use crate::{input_validators, ArgConstant};
+use clap::Arg;
+
+pub const FEE_PAYER_ARG: ArgConstant<'static> = ArgConstant {
+    name: "fee_payer",
+    long: "fee-payer",
+    help: "Specify the fee-payer account. This may be a keypair file, the ASK keyword \n\
+           or the pubkey of an offline signer, provided an appropriate --signer argument \n\
+           is also passed. Defaults to the client keypair.",
+};
+
+pub fn fee_payer_arg<'a, 'b>() -> Arg<'a, 'b> {
+    Arg::with_name(FEE_PAYER_ARG.name)
+        .long(FEE_PAYER_ARG.long)
+        .takes_value(true)
+        .value_name("KEYPAIR")
+        .validator(input_validators::is_valid_signer)
+        .help(FEE_PAYER_ARG.help)
+}

clap-utils/src/lib.rs

@@ -24,6 +24,7 @@ impl std::fmt::Debug for DisplayError {
 }
 
 pub mod commitment;
+pub mod fee_payer;
 pub mod input_parsers;
 pub mod input_validators;
 pub mod keypair;