fix: improve performance

spago.lock

@@ -9,7 +9,7 @@ workspace:
         - datetime: ">=6.1.0 <7.0.0"
         - effect: ">=4.0.0 <5.0.0"
         - exceptions: ">=6.0.0 <7.0.0"
-        - foldable-traversable
+        - foldable-traversable: ">=6.0.0 <7.0.0"
         - foreign: ">=7.0.0 <8.0.0"
         - foreign-object: ">=4.1.0 <5.0.0"
         - integers: ">=6.0.0 <7.0.0"
@@ -18,7 +18,7 @@ workspace:
         - newtype: ">=5.0.0 <6.0.0"
         - node-buffer: ">=9.0.0 <10.0.0"
         - node-event-emitter: ">=3.0.0 <4.0.0"
-        - node-stream-pipes
+        - node-stream-pipes: ">=1.3.0 <2.0.0"
         - node-streams: ">=9.0.0 <10.0.0"
         - nullable: ">=6.0.0 <7.0.0"
         - numbers: ">=9.0.1 <10.0.0"
@@ -28,11 +28,11 @@ workspace:
         - prelude: ">=6.0.1 <7.0.0"
         - record: ">=4.0.0 <5.0.0"
         - record-extra: ">=5.0.1 <6.0.0"
-        - st
+        - st: ">=6.2.0 <7.0.0"
         - strings: ">=6.0.1 <7.0.0"
         - tailrec: ">=6.1.0 <7.0.0"
         - transformers: ">=6.0.0 <7.0.0"
-        - tuples
+        - tuples: ">=7.0.0 <8.0.0"
         - typelevel-prelude: ">=7.0.0 <8.0.0"
         - unsafe-coerce: ">=6.0.0 <7.0.0"
       test_dependencies:
@@ -120,12 +120,10 @@ workspace:
         - typelevel-prelude
         - unfoldable
         - unicode
+        - unordered-collections
         - unsafe-coerce
         - variant
-  extra_packages:
-    node-stream-pipes:
-      git: https://git.orionkindel.com/orion/purescript-node-stream-pipes
-      ref: v1.0.5
+  extra_packages: {}
 packages:
   aff:
     type: registry
@@ -608,9 +606,9 @@ packages:
     dependencies:
       - effect
   node-stream-pipes:
-    type: git
-    url: https://git.orionkindel.com/orion/purescript-node-stream-pipes
-    rev: f2f18c3c13ae2f0f5787ccfb3832fc8c653e83ad
+    type: registry
+    version: 1.3.0
+    integrity: sha256-5Jpf0BLn0ExQWYxbTTewai4M8quEmEVHxihc9CM1Juo=
     dependencies:
       - aff
       - arrays
@@ -618,6 +616,8 @@ packages:
       - either
       - exceptions
       - foldable-traversable
+      - foreign-object
+      - lists
       - maybe
       - mmorph
       - newtype
@@ -627,6 +627,7 @@ packages:
       - node-path
       - node-streams
       - node-zlib
+      - ordered-collections
       - parallel
       - pipes
       - prelude
@@ -634,6 +635,8 @@ packages:
       - strings
       - tailrec
       - transformers
+      - tuples
+      - unordered-collections
       - unsafe-coerce
   node-streams:
     type: registry
@@ -1038,6 +1041,21 @@ packages:
       - foldable-traversable
       - maybe
       - strings
+  unordered-collections:
+    type: registry
+    version: 3.1.0
+    integrity: sha256-H2eQR+ylI+cljz4XzWfEbdF7ee+pnw2IZCeq69AuJ+Q=
+    dependencies:
+      - arrays
+      - enums
+      - functions
+      - integers
+      - lists
+      - prelude
+      - record
+      - tuples
+      - typelevel-prelude
+      - unfoldable
   unsafe-coerce:
     type: registry
     version: 6.0.0

spago.yaml

@@ -10,16 +10,14 @@ package:
     strict: true
     pedanticPackages: true
   dependencies:
-    - foldable-traversable
-    - node-stream-pipes
-    - st
-    - tuples
+    - node-stream-pipes: ">=1.3.0 <2.0.0"
     - aff: ">=7.1.0 <8.0.0"
     - arrays: ">=7.3.0 <8.0.0"
     - bifunctors: ">=6.0.0 <7.0.0"
     - datetime: ">=6.1.0 <7.0.0"
     - effect: ">=4.0.0 <5.0.0"
     - exceptions: ">=6.0.0 <7.0.0"
+    - foldable-traversable: ">=6.0.0 <7.0.0"
     - foreign: ">=7.0.0 <8.0.0"
     - foreign-object: ">=4.1.0 <5.0.0"
     - integers: ">=6.0.0 <7.0.0"
@@ -37,9 +35,11 @@ package:
     - prelude: ">=6.0.1 <7.0.0"
     - record: ">=4.0.0 <5.0.0"
     - record-extra: ">=5.0.1 <6.0.0"
+    - st: ">=6.2.0 <7.0.0"
     - strings: ">=6.0.1 <7.0.0"
     - tailrec: ">=6.1.0 <7.0.0"
     - transformers: ">=6.0.0 <7.0.0"
+    - tuples: ">=7.0.0 <8.0.0"
     - typelevel-prelude: ">=7.0.0 <8.0.0"
     - unsafe-coerce: ">=6.0.0 <7.0.0"
   test:
@@ -53,7 +53,4 @@ package:
       - simple-json
       - spec
 workspace:
-  extraPackages:
-    node-stream-pipes:
-      git: 'https://git.orionkindel.com/orion/purescript-node-stream-pipes'
-      ref: 'v1.0.5'
+  extraPackages: {}

test/Test/Main.purs

@@ -10,5 +10,5 @@ import Test.Spec.Reporter (specReporter)
 import Test.Spec.Runner (defaultConfig, runSpec')
 
 main :: Effect Unit
-main = launchAff_ $ runSpec' (defaultConfig { timeout = Nothing }) [ specReporter ] do
+main = launchAff_ $ runSpec' (defaultConfig { failFast = true, timeout = Nothing }) [ specReporter ] do
   Test.Pipes.CSV.spec

test/Test/Pipes.CSV.purs

@@ -6,27 +6,31 @@ import Control.Monad.Gen (chooseInt)
 import Control.Monad.Rec.Class (Step(..), tailRecM)
 import Data.Array as Array
 import Data.DateTime (DateTime)
-import Data.Foldable (fold)
+import Data.Foldable (fold, sum)
 import Data.Maybe (Maybe(..), fromJust)
 import Data.Newtype (wrap)
 import Data.PreciseDateTime (fromRFC3339String, toDateTimeLossy)
+import Data.String.CodePoints as String.CodePoints
+import Data.Tuple.Nested ((/\))
 import Effect.Class (liftEffect)
+import Effect.Console (log)
 import Node.Encoding (Encoding(..))
 import Partial.Unsafe (unsafePartial)
 import Pipes (yield, (>->))
-import Pipes (each) as Pipes
 import Pipes.CSV as Pipes.CSV
 import Pipes.Collect as Pipes.Collect
+import Pipes.Construct as Pipes.Construct
 import Pipes.Node.Buffer as Pipes.Buffer
 import Pipes.Node.Stream as Pipes.Stream
-import Pipes.Prelude (map, toListM) as Pipes
+import Pipes.Prelude (chain, map, toListM) as Pipes
 import Pipes.Util as Pipes.Util
 import Test.QuickCheck.Gen (randomSample')
-import Test.Spec (Spec, describe, it)
+import Test.Spec (Spec, before, describe, it)
 import Test.Spec.Assertions (shouldEqual)
 
 csv :: String
-csv = """created,flag,foo,id
+csv =
+  """created,flag,foo,id
 2020-01-01T00:00:00.0Z,true,a,1
 2024-02-02T08:00:00.0Z,false,apple,2
 1970-01-01T00:00:00.0Z,true,hello,3
@@ -41,48 +45,44 @@ spec =
     it "stringify" do
       let
         objs =
-          [ {id: 1, foo: "a", flag: true, created: dt "2020-01-01T00:00:00Z"}
-          , {id: 2, foo: "apple", flag: false, created: dt "2024-02-02T08:00:00Z"}
-          , {id: 3, foo: "hello", flag: true, created: dt "1970-01-01T00:00:00Z"}
+          [ { id: 1, foo: "a", flag: true, created: dt "2020-01-01T00:00:00Z" }
+          , { id: 2, foo: "apple", flag: false, created: dt "2024-02-02T08:00:00Z" }
+          , { id: 3, foo: "hello", flag: true, created: dt "1970-01-01T00:00:00Z" }
           ]
 
-      csv' <- map fold $ Pipes.Collect.collectArray $ Pipes.Stream.withEOS (Pipes.each objs) >-> Pipes.CSV.stringify >-> Pipes.Stream.unEOS
+      csv' <- map fold $ Pipes.Collect.toArray $ Pipes.Stream.withEOS (Pipes.Construct.eachArray objs) >-> Pipes.CSV.stringify >-> Pipes.Stream.unEOS
       csv' `shouldEqual` csv
     describe "parse" do
       it "parses csv" do
         rows <- map Array.fromFoldable
           $ Pipes.toListM
           $ Pipes.Stream.withEOS (yield csv)
-            >-> Pipes.Stream.inEOS (Pipes.Buffer.fromString UTF8)
-            >-> Pipes.CSV.parse
-            >-> Pipes.Stream.unEOS
+              >-> Pipes.Stream.inEOS (Pipes.Buffer.fromString UTF8)
+              >-> Pipes.CSV.parse
+              >-> Pipes.Stream.unEOS
 
         rows `shouldEqual`
-          [ {id: 1, foo: "a", flag: true, created: dt "2020-01-01T00:00:00Z"}
-          , {id: 2, foo: "apple", flag: false, created: dt "2024-02-02T08:00:00Z"}
-          , {id: 3, foo: "hello", flag: true, created: dt "1970-01-01T00:00:00Z"}
+          [ { id: 1, foo: "a", flag: true, created: dt "2020-01-01T00:00:00Z" }
+          , { id: 2, foo: "apple", flag: false, created: dt "2024-02-02T08:00:00Z" }
+          , { id: 3, foo: "hello", flag: true, created: dt "1970-01-01T00:00:00Z" }
           ]
-      it "parses large csv" do
-        nums <- liftEffect $ randomSample' 100000 (chooseInt 0 9)
-        let
-          csvRows = ["id\n"] <> ((_ <> "\n") <$> show <$> nums)
-          csv' =
-            let
-              go ix
-                | Just a <- Array.index csvRows ix = yield a $> Loop (ix + 1)
-                | otherwise = pure $ Done unit
-            in
-              tailRecM go 0
-          in16kbChunks =
-            Pipes.Util.chunked 16000
-            >-> Pipes.Stream.inEOS (Pipes.map fold)
-            >-> Pipes.Stream.inEOS (Pipes.Buffer.fromString UTF8)
+      before
+        (do
+          nums <- liftEffect $ randomSample' 100000 (chooseInt 0 9)
+          let
+            chars = [ "i","d","\n" ] <> join ((\n -> [show n, "\n"]) <$> nums)
+          bufs <- Pipes.Collect.toArray
+            $ Pipes.Stream.withEOS (Pipes.Construct.eachArray chars)
+             >-> Pipes.Util.chunked 1000
+             >-> Pipes.Stream.inEOS (Pipes.map fold >-> Pipes.Buffer.fromString UTF8)
+             >-> Pipes.Stream.unEOS
+          pure $ nums /\ bufs
+        )
+        $ it "parses large csv" \(nums /\ bufs) -> do
+          rows <-
+            Pipes.Collect.toArray
+              $ Pipes.Stream.withEOS (Pipes.Construct.eachArray bufs)
+                  >-> Pipes.CSV.parse @(id :: Int)
+                  >-> Pipes.Stream.unEOS
 
-        rows <-
-          Pipes.Collect.collectArray
-          $ Pipes.Stream.withEOS csv'
-            >-> in16kbChunks
-            >-> Pipes.CSV.parse
-            >-> Pipes.Stream.unEOS
-
-        rows `shouldEqual` ((\id -> {id}) <$> nums)
+          rows `shouldEqual` ((\id -> { id }) <$> nums)