fa3d9ce3254882c545d700990fe8e9a678f31eed rpc: Assert that RPCArg names are equal to CRPCCommand ones (rpcdump) (MarcoFalke)
fa32c1d5ec25bc53bf989a8ae68e688593d2859d rpc: Assert that RPCArg names are equal to CRPCCommand ones (zmq) (MarcoFalke)
faaa46dc204d6d714f71dbc6f0bf02215dba0f0f rpc: Assert that RPCArg names are equal to CRPCCommand ones (mining) (MarcoFalke)
fa93bc14c7411a108dd024d391344fabf0f76369 rpc: Remove unused return type from appendCommand (MarcoFalke)
Pull request description:
This is split out from #18531 to just touch the RPC methods in misc. Description from the main pr:
### Motivation
RPCArg names in the rpc help are currently only used for documentation. However, in the future they could be used to teach the server the named arguments. Named arguments are currently registered by the `CRPCCommand`s and duplicate the RPCArg names from the documentation. This redundancy is fragile, and has lead to errors in the past (despite having linters to catch those kind of errors). See section "bugs found" for a list of bugs that have been found as a result of the changes here.
### Changes
The changes here add an assert in the `CRPCCommand` constructor that the RPCArg names are identical to the ones in the `CRPCCommand`.
### Future work
> Here or follow up, makes sense to also assert type of returned UniValue?
Sure, but let's not get ahead of ourselves. I am going to submit any further works as follow-ups, including:
* Removing the CRPCCommand arguments, now that they are asserted to be equal and thus redundant
* Removing all python regex linters on the args, now that RPCMan can be used to generate any output, including the cli.cpp table
* Auto-formatting and sanity checking the RPCExamples with RPCMan
* Checking passed-in json in self-check. Removing redundant checks
* Checking returned json against documentation to avoid regressions or false documentation
* Compile the RPC documentation at compile-time to ensure it doesn't change at runtime and is completely static
### Bugs found
* The assert identified issue #18607
* The changes itself fixed bug #19250
ACKs for top commit:
fjahr:
tested ACK fa3d9ce3254882c545d700990fe8e9a678f31eed
promag:
Code review ACK fa3d9ce3254882c545d700990fe8e9a678f31eed.
Tree-SHA512: 068ade4b55cc195868d53b7f9a27151d45b440857bb069e261a49d102a49a38fdba5d68868516a1d66a54a73ba34681362f934ded7349e894042bde873b75719
f0aa8aeea5a183ea44a877255d12db7732f2e0a8 test: add rpc_generate functional test (Jon Atack)
92d94ffb8d07cc0d2665c901de5903a3a90d5fd0 rpc: print useful help and error message for generate (Jon Atack)
8d32d2011d3f4e1d9e587d6f80dfa4a3e9f9393d test: consider generate covered in _get_uncovered_rpc_commands() (Jon Atack)
Pull request description:
This was a requested follow-up to #19133 and #17700 to alleviate confusion and head-scratching by people following tutorials that use `generate`. See https://github.com/bitcoin/bitcoin/pull/19455#issuecomment-668172916 below, https://github.com/bitcoin/bitcoin/pull/19133#issuecomment-636860943 and https://github.com/bitcoin/bitcoin/pull/17700#issuecomment-566159096.
before
```
$ bitcoin-cli help generate
help: unknown command: generate
$ bitcoin-cli generate
error code: -32601
error message:
Method not found
```
after
```
$ bitcoin-cli help generate
generate ( nblocks maxtries ) has been replaced by the -generate cli option. Refer to -help for more information.
$ bitcoin-cli generate
error code: -32601
error message:
generate ( nblocks maxtries ) has been replaced by the -generate cli option. Refer to -help for more information.
```
In the general help it remains hidden, as requested by laanwj.
```
$ bitcoin-cli help
== Generating ==
generateblock "output" ["rawtx/txid",...]
generatetoaddress nblocks "address" ( maxtries )
generatetodescriptor num_blocks "descriptor" ( maxtries )
```
ACKs for top commit:
adamjonas:
utACK f0aa8aeea5a183ea44a877255d12db7732f2e0a8
pinheadmz:
ACK f0aa8aeea5a183ea44a877255d12db7732f2e0a8
Tree-SHA512: d083652589ad3e8228c733455245001db22397559c3946e7e573cf9bd01c46e9e88b72d934728ec7f4361436ae4c74adb8f579670b09f479011924357e729af5
