chore: adding lint job to the CI

.github/workflows/ci.yml

@@ -141,3 +141,25 @@ jobs:
       nim_wakunode_image: ${{ needs.build-docker-image.outputs.image }}
       test_type: node-optional
       debug: waku*
+
+  lint:
+    name: "Lint"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2  # In PR, has extra merge commit: ^1 = PR, ^2 = base
+
+      - name: Check nph formatting
+        # Pin nph to a specific version to avoid sudden style differences.
+        # Updating nph version should be accompanied with running the new
+        # version on the fluffy directory.
+        run: |
+          VERSION="v0.5.1"
+          ARCHIVE="nph-linux_x64.tar.gz"
+          curl -L "https://github.com/arnetheduck/nph/releases/download/${VERSION}/${ARCHIVE}" -o ${ARCHIVE}
+          tar -xzf ${ARCHIVE}
+          shopt -s extglob  # Enable extended globbing
+          ./nph examples waku tests tools apps *.@(nim|nims|nimble)
+          git diff --exit-code

config.nims

@@ -9,7 +9,8 @@ if defined(windows):
   # increase stack size
   switch("passL", "-Wl,--stack,8388608")
   # https://github.com/nim-lang/Nim/issues/4057
-  --tlsEmulation:off
+  --tlsEmulation:
+    off
   if defined(i386):
     # set the IMAGE_FILE_LARGE_ADDRESS_AWARE flag so we can use PAE, if enabled, and access more than 2 GiB of RAM
     switch("passL", "-Wl,--large-address-aware")
@@ -60,28 +61,36 @@ else:
     switch("passC", "-mno-avx512f")
     switch("passL", "-mno-avx512f")
 
-
---threads:on
---opt:speed
---excessiveStackTrace:on
+--threads:
+  on
+--opt:
+  speed
+--excessiveStackTrace:
+  on
 # enable metric collection
---define:metrics
+--define:
+  metrics
 # for heap-usage-by-instance-type metrics and object base-type strings
---define:nimTypeNames
+--define:
+  nimTypeNames
 
 switch("define", "withoutPCRE")
 
 # the default open files limit is too low on macOS (512), breaking the
 # "--debugger:native" build. It can be increased with `ulimit -n 1024`.
 if not defined(macosx) and not defined(android):
   # add debugging symbols and original files and line numbers
-  --debugger:native
+  --debugger:
+    native
   if not (defined(windows) and defined(i386)) and not defined(disable_libbacktrace):
     # light-weight stack traces using libbacktrace and libunwind
-    --define:nimStackTraceOverride
+    --define:
+      nimStackTraceOverride
     switch("import", "libbacktrace")
 
---define:nimOldCaseObjects # https://github.com/status-im/nim-confutils/issues/9
+--define:
+  nimOldCaseObjects
+  # https://github.com/status-im/nim-confutils/issues/9
 
 # `switch("warning[CaseTransition]", "off")` fails with "Error: invalid command line option: '--warning[CaseTransition]'"
 switch("warning", "CaseTransition:off")

examples/wakustealthcommitments/node_spec.nim

@@ -1,7 +1,6 @@
 {.push raises: [].}
 
-import
-  waku/[common/logging, factory/[waku, networks_config, external_config]]
+import waku/[common/logging, factory/[waku, networks_config, external_config]]
 import
   std/[options, strutils, os, sequtils],
   stew/shims/net as stewNet,

examples/wakustealthcommitments/stealth_commitment_protocol.nim

@@ -2,9 +2,7 @@
 
 import
   results,
-  waku/[common/logging,
-    waku_node,
-    waku_rln_relay,],
+  waku/[common/logging, waku_node, waku_rln_relay],
   ./erc_5564_interface as StealthCommitmentFFI,
   ./node_spec,
   ./wire_spec

tests/incentivization/test_all.nim

@@ -1,2 +1 @@
-import
-  ./test_rpc_codec
+import ./test_rpc_codec

tests/waku_rln_relay/test_rln_group_manager_onchain.nim

@@ -215,8 +215,9 @@ proc setup(): Future[OnchainGroupManager] {.async.} =
     chainId: CHAIN_ID,
     ethPrivateKey: pk,
     rlnInstance: rlnInstance,
-    onFatalErrorAction: proc (errStr: string) =
+    onFatalErrorAction: proc(errStr: string) =
       raiseAssert errStr
+    ,
   )
 
   return manager
@@ -277,8 +278,9 @@ suite "Onchain group manager":
       ethClientUrl: EthClient,
       ethContractAddress: $differentContractAddress,
       rlnInstance: manager.rlnInstance,
-      onFatalErrorAction: proc (errStr: string) =
+      onFatalErrorAction: proc(errStr: string) =
         raiseAssert errStr
+      ,
     )
     (await manager2.init()).isErrOr:
       raiseAssert "Expected error when contract address doesn't match"
@@ -779,7 +781,7 @@ suite "Onchain group manager":
       isReady == true
 
     await manager.stop()
-  
+
   asyncTest "rln-relay-max-message-limit testing":
     let
       nodekey = generateSecp256k1Key()
@@ -797,9 +799,9 @@ suite "Onchain group manager":
     try:
       await node.mountRlnRelay(wakuRlnConfig)
     except CatchableError as e:
-      check e.msg == "failed to mount WakuRlnRelay: rln-relay-user-message-limit can't be exceed then MAX_MESSAGE_LIMIT set by rln contract"
+      check e.msg ==
+        "failed to mount WakuRlnRelay: rln-relay-user-message-limit can't be exceed then MAX_MESSAGE_LIMIT set by rln contract"
 
-
   ################################
   ## Terminating/removing Anvil
   ################################

tools/rln_keystore_generator/rln_keystore_generator.nim

@@ -63,7 +63,7 @@ proc doRlnKeystoreGenerator*(conf: WakuNodeConf) =
     keystorePath: none(string),
     keystorePassword: none(string),
     ethPrivateKey: some(conf.rlnRelayEthPrivateKey),
-    onFatalErrorAction: onFatalErrorAction
+    onFatalErrorAction: onFatalErrorAction,
   )
   try:
     (waitFor groupManager.init()).isOkOr:

waku/common/rate_limit/per_peer_limiter.nim

@@ -4,8 +4,6 @@
 ## Rate limit is applied separately by each peer upon first use. Also time period is counted distinct per peer.
 ## It will use compensating replenish mode for peers to balance the load and allow fair usage of a service.
 
-
-
 {.push raises: [].}
 
 import std/[options, tables], chronos/timer, libp2p/stream/connection, libp2p/utility

waku/incentivization/rpc.nim

@@ -1,14 +1,10 @@
-import
-  json_serialization,
-  std/options
-import
-  ../waku_core
+import json_serialization, std/options
+import ../waku_core
 
 # Implementing the RFC:
 # https://github.com/vacp2p/rfc/tree/master/content/docs/rfcs/73
 
 type
-
   EligibilityProof* = object
     proofOfPayment*: Option[seq[byte]]
 

waku/incentivization/rpc_codec.nim

@@ -1,14 +1,9 @@
-import
-  std/options
-import
-  ../common/protobuf,
-  ../waku_core,
-  ./rpc
-
+import std/options
+import ../common/protobuf, ../waku_core, ./rpc
 
 # Codec for EligibilityProof
 
-proc encode*(epRpc: EligibilityProof): ProtoBuffer = 
+proc encode*(epRpc: EligibilityProof): ProtoBuffer =
   var pb = initProtoBuffer()
   if epRpc.proofOfPayment.isSome():
     let proofOfPayment = epRpc.proofOfPayment.get()
@@ -18,7 +13,7 @@ proc encode*(epRpc: EligibilityProof): ProtoBuffer =
     discard
   pb
 
-proc decode*(T: type EligibilityProof, buffer: seq[byte]): ProtobufResult[T] = 
+proc decode*(T: type EligibilityProof, buffer: seq[byte]): ProtobufResult[T] =
   let pb = initProtoBuffer(buffer)
   var epRpc = EligibilityProof()
   var proofOfPayment = newSeq[byte]()
@@ -28,17 +23,16 @@ proc decode*(T: type EligibilityProof, buffer: seq[byte]): ProtobufResult[T] =
     epRpc.proofOfPayment = some(proofOfPayment)
   ok(epRpc)
 
-
 # Codec for EligibilityStatus
 
-proc encode*(esRpc: EligibilityStatus): ProtoBuffer = 
+proc encode*(esRpc: EligibilityStatus): ProtoBuffer =
   var pb = initProtoBuffer()
   pb.write3(1, esRpc.statusCode)
   if esRpc.statusDesc.isSome():
     pb.write3(2, esRpc.statusDesc.get())
   pb
 
-proc decode*(T: type EligibilityStatus, buffer: seq[byte]): ProtobufResult[T] = 
+proc decode*(T: type EligibilityStatus, buffer: seq[byte]): ProtobufResult[T] =
   let pb = initProtoBuffer(buffer)
   var esRpc = EligibilityStatus()
   # status code
@@ -55,5 +49,3 @@ proc decode*(T: type EligibilityStatus, buffer: seq[byte]): ProtobufResult[T] =
   else:
     esRpc.statusDesc = some(description)
   ok(esRpc)
-
-

waku/waku_api/rest/filter/types.nim

@@ -426,6 +426,5 @@ proc readValue*(
     reader.raiseUnexpectedValue("Field `requestId` is missing")
 
   value = FilterSubscriptionResponse(
-    requestId: requestId.get(),
-    statusDesc: statusDesc.get(""),
+    requestId: requestId.get(), statusDesc: statusDesc.get("")
   )

waku/waku_api/rest/store/types.nim

@@ -33,7 +33,8 @@ proc parseHash*(input: Option[string]): Result[Option[WakuMessageHash], string]
     return err("waku message hash parsing error: " & error)
 
   if decodedBytes.len != 32:
-    return err("waku message hash parsing error: invalid hash length: " & $decodedBytes.len)
+    return
+      err("waku message hash parsing error: invalid hash length: " & $decodedBytes.len)
 
   let hash: WakuMessageHash = fromBytes(decodedBytes)
 

waku/waku_rln_relay/constants.nim

@@ -30,8 +30,8 @@ const DefaultRlnTreePath* = "rln_tree.db"
 const
   # pre-processed "rln/waku-rln-relay/v2.0.0" to array[32, byte]
   DefaultRlnIdentifier*: RlnIdentifier = [
-    114, 108, 110, 47, 119, 97, 107, 117, 45, 114, 108, 110, 45, 114, 101, 108, 97,
-    121, 47, 118, 50, 46, 48, 46, 48, 0, 0, 0, 0, 0, 0, 0,
+    114, 108, 110, 47, 119, 97, 107, 117, 45, 114, 108, 110, 45, 114, 101, 108, 97, 121,
+    47, 118, 50, 46, 48, 46, 48, 0, 0, 0, 0, 0, 0, 0,
   ]
   DefaultUserMessageLimit* = UserMessageLimit(20)
 
@@ -60052,7 +60052,6 @@ const StaticGroupKeys* =
 const StaticGroupMerkleRoot* =
   "2c149e48886b5ba3da2edf8db8d7a364ae7a25618489c04cf0c0380f7cdd4d6f"
 
-
 const MaxClockGapSeconds* = 20.0 # the maximum clock difference between peers in seconds
 
 # RLN Keystore defaults

waku/waku_rln_relay/contract.nim

@@ -1,4 +1,3 @@
-
 # This contract code is used in deployment, note: this is not the deployedBytecode, it includes constructor args.
 # Ref: https://github.com/waku-org/waku-rlnv2-contract
 const PoseidonT3* =

waku/waku_rln_relay/conversion_utils.nim

@@ -78,7 +78,6 @@ proc serialize*(
   )
   return output
 
-
 proc serialize*(proof: RateLimitProof, data: openArray[byte]): seq[byte] =
   ## a private proc to convert RateLimitProof and data to a byte seq
   ## this conversion is used in the proof verification proc