ci: run code verification steps in pipeline

.github/workflows/ci.yaml

@@ -14,9 +14,13 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Set up Go
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@v4
       with:
         go-version: 1.21
+      run: go mod tidy
+
+    - name: Verify
+      run: scripts/verify .
 
     - name: Build
       run: go build -v ./...

README.md

@@ -32,7 +32,7 @@ go run puzzles/day00/main.go
 To create a template of files needed for a new day's puzzle, run the following command.
 
 ```shell
-./scripts/create-day.sh 01
+./scripts/create-day 01
 ```
 
 This will create a new folder named `day01` pre-created with files for the main code, test code, and input files.

scripts/verify

@@ -0,0 +1,19 @@
+#! /bin/bash
+set -e
+
+echo "Verifying formatting..."
+
+FILES=$(find $1 -name '*.go')
+GOFMT_RESULT=$(gofmt -d -s $FILES 2>&1)
+
+if [[ ${#GOFMT_RESULT} != 0 ]]; then
+  echo "Files are not formatted correctly:"
+  echo "$GOFMT_RESULT"
+  exit 1
+else
+    echo "All files are formatted correctly."
+fi
+
+echo "Vetting source files..."
+go vet ./...
+echo "Source files vetted."

template/main.go

@@ -10,6 +10,7 @@ func main() {
 }
 
 func part1(name string) int {
+	fmt.Printf("Part 1: %s%s\n", name)
 	return 0
 }