b0c8246cac Add cleaner errors for unsuccessful faucet transactions (NikhilBartwal)
1c612b274b [script] Update signet getcoins.py for custom network (NikhilBartwal)
Pull request description:
Currently, using the getcoins.py with a custom signet executes successfully and shows the transfer of 0.001 testBTC as complete, however for obvious reasons, it should not. In fact, upon verification it does not actually execute the transaction, but rather gives the output that it did, as shown below which can be misleading:
```
[nikhilb@nikhil-PC bitcoin]$ echo $datadir
/home/nikhilb/signet-custom
[nikhilb@nikhil-PC bitcoin]$ contrib/signet/getcoins.py -- -datadir=$datadir
Payment of 0.00100000 BTC sent with txid dd22c7d996e95f3e5baf20f73140d517ff48f1b26d0e4fefd61e3c37991b8f86
[nikhilb@nikhil-PC bitcoin]$ bitcoin-cli -datadir=$datadir getrawtransaction dd22c7d996e95f3e5baf20f73140d517ff48f1b26d0e4fefd61e3c37991b8f86
error code: -5
error message:
No such mempool or blockchain transaction. Use gettransaction for wallet transactions.
[nikhilb@nikhil-PC bitcoin]$ bitcoin-cli -datadir=$datadir gettransaction dd22c7d996e95f3e5baf20f73140d517ff48f1b26d0e4fefd61e3c37991b8f86
error code: -5
error message:
Invalid or non-wallet transaction id
```
This PR adds a sanity check for custom signet by comparing the current network's first block hash (the block after the genesis block) with global signet's respective block hash (since all signet networks share the same genesis block) and if a custom network is detected, the user is prompted to either work on the global signet or setup their own faucet.
The PR was checked to be working successfully, giving the output as below:
```
[nikhilb@nikhil-PC bitcoin]$ git checkout update_signet_getcoins
Switched to branch 'update_signet_getcoins'
Your branch is ahead of 'upstream/master' by 1 commit.
(use "git push" to publish your local commits)
[nikhilb@nikhil-PC bitcoin]$ contrib/signet/getcoins.py -- -datadir=$datadir
The global faucet cannot be used with a custom Signet network. Please use the global signet or setup your custom faucet for the same.
You can have a look here for setting up your own faucet: https://en.bitcoin.it/wiki/Signet
```
ACKs for top commit:
prayank23:
utACK b0c8246cac
kallewoof:
ACK b0c8246cac
arnabsen1729:
utACK b0c8246
prakash1512:
utACK b0c8246
0xB10C:
Tested ACK b0c8246cac
theStack:
Tested ACK b0c8246cac
Zero-1729:
crACK b0c8246🧉
Tree-SHA512: 144b47a83008521a5cda13f4c1b12809a125a744f865a8e0f792132d52fdb88926d4f4f4d7230452c2e129b5879892cdbeda981b8af10b789e9fc0cda2905a5d
Currently, using the getcoins.py with a custom signet executes successfully and shows the transaction as complete, however for obvious reasons, it should not.
This PR adds a sanity check for custom signet by comparing the current network's first block hash with global signet's respective hash.
When mining the first block of a new signet chain, pick a timestamp for
the first block so that after mining 100 blocks the timestamp will be
back to the current time -- this prevents an unnecessary delay before
any miner rewards have matured enough to be spent. This takes into
account that the delta between blocks may be shorter than 10 minutes due
to attempting to increase the difficulty to match --nbits, but does not
take into account the time spent actually generating the 100 blocks.
