add nph formatting linter (#48)

* add `nph` formatting linter

* missing directory

Author: arnetheduck

.github/workflows/ci.yml

@@ -38,3 +38,22 @@ jobs:
           env TEST_LANG="c" nimble test
           env TEST_LANG="cpp" nimble test
 
+
+  lint:
+    name: "Check formatting"
+    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.
+        run: |
+          VERSION="v0.6.0"
+          ARCHIVE="nph-linux_x64.tar.gz"
+          curl -L "https://github.com/arnetheduck/nph/releases/download/${VERSION}/${ARCHIVE}" -o ${ARCHIVE}
+          tar -xzf ${ARCHIVE}
+          ./nph .
+          git diff --exit-code

results.nimble

@@ -1,11 +1,11 @@
 # Package
 
-version       = "0.4.0"
-author        = "Jacek Sieka"
-description   = "Friendly, exception-free value-or-error returns, similar to Option[T]"
-license       = "MIT"
-skipDirs      = @["benchmarks", "tests"]
-installFiles  = @["results.nim"]
+version = "0.4.0"
+author = "Jacek Sieka"
+description = "Friendly, exception-free value-or-error returns, similar to Option[T]"
+license = "MIT"
+skipDirs = @["benchmarks", "tests"]
+installFiles = @["results.nim"]
 # Dependencies
 
 requires "nim >= 1.2"
@@ -15,8 +15,7 @@ proc test(env, path: string) =
   var lang = "c"
   if existsEnv"TEST_LANG":
     lang = getEnv"TEST_LANG"
-  exec "nim " & lang & " " & env &
-    " -r " & path
+  exec "nim " & lang & " " & env & " -r " & path
 
 task test, "Runs the test suite":
   for f in ["test_results.nim", "test_results2.nim"]:

tests/test_results.nim

@@ -502,6 +502,7 @@ block: # Result[T, void] aka `Opt`
       $x
   )
   .get() == $oOk.get()
+
   oOk
   .map(
     proc(x: int) =
@@ -593,10 +594,11 @@ block: # Result[T, void] aka `Opt`
     doAssert oOk.value() + 1 notin oOk
 
 block: # Nested `?`
-  proc inside: Opt[int] =
+  proc inside(): Opt[int] =
     ok(5)
-  proc kput: Opt[int] =
-    ok(? inside())
+
+  proc kput(): Opt[int] =
+    ok(?inside())
 
   doAssert kput() == Opt.some(5)