4b1fb50def
f685a13befdoc: GetTransaction()/getrawtransaction follow-ups to #22383 (John Newbery)abc57e1f08refactor: move `GetTransaction(...)` to node/transaction.cpp (Sebastian Falbesoner) Pull request description: ~This PR is based on #22383, which should be reviewed first~ (merged by now). In [yesterday's PR review club session to PR 22383](https://bitcoincore.reviews/22383), the idea of moving the function `GetTransaction(...)` from src/validation.cpp to src/node/transaction.cpp came up. With this, the circular dependency "index/txindex -> validation -> index/txindex" is removed (see change in `lint-circular-dependencies.sh`). Thanks to jnewbery for suggesting and to sipa for providing historical background. Relevant IRC log: ``` 17:52 <jnewbery> Was anyone surprised that GetTransaction() is in validation.cpp? It seems to me that node/transaction.cpp would be a more appropriate place for it. 17:53 <raj_> jnewbery, +1 17:53 <stickies-v> agreed! 17:54 <glozow> jnewbery ya 17:54 <jnewbery> seems weird that validation would call into txindex. I wonder if we remove this function, then validation would no longer need to #include txindex 17:54 <sipa> GetTransaction predates node/transaction.cpp, and even the generic index framework itself :) 17:55 <sipa> (before 0.8, validation itself used the txindex) 17:55 <jnewbery> (and GetTransaction() seems like a natural sibling to BroadcastTransaction(), which is already in node/transaction.cpp) 17:55 <jnewbery> sipa: right, this is not meant as a criticism of course. Just wondering if we can organize things a bit more rationally now that we have better separation between things. 17:55 <sipa> jnewbery: sure, just providing background 17:56 <sipa> seems very reasonable to move it elsewhere now ``` The commit should be trivial to review with `--color-moved`. ACKs for top commit: jnewbery: Code review ACKf685a13befrajarshimaitra: tACKf685a13befmjdietzx: crACKf685a13befLarryRuane: Code review, test ACKf685a13befTree-SHA512: 0e844a6ecb1be04c638b55bc4478c2949549a4fcae01c984eee078de74d176fb19d508fc09360a62ad130677bfa7daf703b67870800e55942838d7313246248c
src/node/
The src/node/ directory contains code that needs to access node state
(state in CChain, CBlockIndex, CCoinsView, CTxMemPool, and similar
classes).
Code in src/node/ is meant to be segregated from code in
src/wallet/ and src/qt/, to ensure wallet and GUI
code changes don't interfere with node operation, to allow wallet and GUI code
to run in separate processes, and to perhaps eventually allow wallet and GUI
code to be maintained in separate source repositories.
As a rule of thumb, code in one of the src/node/,
src/wallet/, or src/qt/ directories should avoid
calling code in the other directories directly, and only invoke it indirectly
through the more limited src/interfaces/ classes.
This directory is at the moment
sparsely populated. Eventually more substantial files like
src/validation.cpp and
src/txmempool.cpp might be moved there.