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chore: Bring confidential-devnet to tip of confidential/transfer branch (#6435)
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56
.github/scripts/levelization/README.md
vendored
56
.github/scripts/levelization/README.md
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Levelization is the term used to describe efforts to prevent rippled from
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having or creating cyclic dependencies.
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rippled code is organized into directories under `src/rippled` (and
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rippled code is organized into directories under `src/xrpld`, `src/libxrpl` (and
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`src/test`) representing modules. The modules are intended to be
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organized into "tiers" or "levels" such that a module from one level can
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only include code from lower levels. Additionally, a module
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in one level should never include code in an `impl` folder of any level
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in one level should never include code in an `impl` or `detail` folder of any level
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other than it's own.
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The codebase is split into two main areas:
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- **libxrpl** (`src/libxrpl`, `include/xrpl`): Reusable library modules with public interfaces
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- **xrpld** (`src/xrpld`): Application-specific implementation code
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Unfortunately, over time, enforcement of levelization has been
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inconsistent, so the current state of the code doesn't necessarily
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reflect these rules. Whenever possible, developers should refactor any
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levelization violations they find (by moving files or individual
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classes). At the very least, don't make things worse.
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The table below summarizes the _desired_ division of modules, based on the
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state of the rippled code when it was created. The levels are numbered from
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The table below summarizes the _desired_ division of modules, based on the current
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state of the rippled code. The levels are numbered from
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the bottom up with the lower level, lower numbered, more independent
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modules listed first, and the higher level, higher numbered modules with
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more dependencies listed later.
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@@ -25,18 +30,33 @@ more dependencies listed later.
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**tl;dr:** The modules listed first are more independent than the modules
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listed later.
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## libxrpl Modules (Reusable Libraries)
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| Level / Tier | Module(s) |
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| ------------ | ----------------------------------- |
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| 01 | xrpl/beast |
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| 02 | xrpl/basics |
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| 03 | xrpl/json xrpl/crypto |
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| 04 | xrpl/protocol |
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| 05 | xrpl/core xrpl/resource xrpl/server |
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| 06 | xrpl/ledger xrpl/nodestore xrpl/net |
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| 07 | xrpl/shamap |
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## xrpld Modules (Application Implementation)
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| Level / Tier | Module(s) |
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| ------------ | -------------------------------- |
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| 05 | xrpld/conditions xrpld/consensus |
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| 06 | xrpld/core xrpld/peerfinder |
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| 07 | xrpld/shamap xrpld/overlay |
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| 08 | xrpld/app |
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| 09 | xrpld/rpc |
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| 10 | xrpld/perflog |
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## Test Modules
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| Level / Tier | Module(s) |
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| ------------ | -------------------------------------------------------------------------------------------------------- |
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| 01 | ripple/beast ripple/unity |
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| 02 | ripple/basics |
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| 03 | ripple/json ripple/crypto |
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| 04 | ripple/protocol |
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| 05 | ripple/core ripple/conditions ripple/consensus ripple/resource ripple/server |
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| 06 | ripple/peerfinder ripple/ledger ripple/nodestore ripple/net |
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| 07 | ripple/shamap ripple/overlay |
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| 08 | ripple/app |
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| 09 | ripple/rpc |
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| 10 | ripple/perflog |
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| 11 | test/jtx test/beast test/csf |
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| 12 | test/unit_test |
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| 13 | test/crypto test/conditions test/json test/resource test/shamap test/peerfinder test/basics test/overlay |
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@@ -45,8 +65,8 @@ listed later.
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| 16 | test/rpc test/app |
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(Note that `test` levelization is _much_ less important and _much_ less
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strictly enforced than `ripple` levelization, other than the requirement
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that `test` code should _never_ be included in `ripple` code.)
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strictly enforced than `xrpl`/`xrpld` levelization, other than the requirement
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that `test` code should _never_ be included in `xrpl` or `xrpld` code.)
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## Validation
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@@ -61,10 +81,10 @@ It generates many files of [results](results):
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- `rawincludes.txt`: The raw dump of the `#includes`
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- `paths.txt`: A second dump grouping the source module
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to the destination module, deduped, and with frequency counts.
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to the destination module, de-duped, and with frequency counts.
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- `includes/`: A directory where each file represents a module and
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contains a list of modules and counts that the module _includes_.
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- `includedby/`: Similar to `includes/`, but the other way around. Each
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- `included_by/`: Similar to `includes/`, but the other way around. Each
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file represents a module and contains a list of modules and counts
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that _include_ the module.
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- [`loops.txt`](results/loops.txt): A list of direct loops detected
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