Add more tests

.golangci.yml

@@ -1,9 +1,9 @@
 linters:
   enable:
-  - gofmt
-  - gofumpt
-  - nolintlint
-  - lll
+    - gofmt
+    - gofumpt
+    - nolintlint
+    - lll
 
 issues:
   max-issues-per-linter: 0
@@ -12,4 +12,4 @@ issues:
 linters-settings:
   lll:
     line-length: 92 # Set your desired max line length here
-    tab-width: 4    # Optional: set the width of tab characters
+    tab-width: 4 # Optional: set the width of tab characters

.goreleaser.yml

@@ -25,11 +25,11 @@ archives:
       {{- if .Arm }}v{{ .Arm }}_{{ .Version }}{{ end }}
     # use zip for windows archives
     format_overrides:
-    - goos: windows
-      format: zip
+      - goos: windows
+        format: zip
 
 checksum:
-  name_template: 'checksums.txt'
+  name_template: "checksums.txt"
 
 snapshot:
   name_template: "{{ incpatch .Version }}-next"
@@ -38,8 +38,8 @@ changelog:
   sort: asc
   filters:
     exclude:
-      - '^docs:'
-      - '^test:'
+      - "^docs:"
+      - "^test:"
 
 brews:
   - name: link-patrol

.prettierignore

@@ -0,0 +1,15 @@
+public/
+static/
+layouts/
+themes/
+
+# Ignore
+**/*.html
+**/Makefile
+.editorconfig
+.prettierignore
+.git*
+.hugo*
+Brew*
+pyproject*
+requirements*

.prettierrc

@@ -0,0 +1,24 @@
+{
+  "proseWrap": "preserve",
+  "semi": false,
+  "singleQuote": false,
+  "useTabs": false,
+  "tabWidth": 2,
+  "trailingComma": "all",
+  "printWidth": 92,
+  "overrides": [
+    {
+      "files": "**/*.md",
+      "options": {
+        "tabWidth": 4,
+        "useTabs": false,
+        "singleQuote": false,
+        "trailingComma": "all",
+        "arrowParens": "avoid",
+        "printWidth": 92,
+        "proseWrap": "always",
+        "embeddedLanguageFormatting": "off"
+      }
+    }
+  ]
+}

Makefile

@@ -13,6 +13,7 @@ lint:
 	@echo "Running lint"
 	@golangci-lint run --fix
 	@go mod tidy
+	@prettier --write .
 
 
 .PHONY: lint-check

README.md

@@ -11,18 +11,18 @@ Detect dead links in markdown files
 
 ## Installation
 
-* On MacOS, brew install:
+-   On MacOS, brew install:
 
-   ```sh
-   brew tap rednafi/link-patrol https://github.com/rednafi/link-patrol \
-      && brew install link-patrol
-   ```
+    ```sh
+    brew tap rednafi/link-patrol https://github.com/rednafi/link-patrol \
+       && brew install link-patrol
+    ```
 
-* Or elsewhere, go install:
+-   Or elsewhere, go install:
 
-   ```sh
-   go install github.com/rednafi/link-patrol/cmd/link-patrol
-   ```
+    ```sh
+    go install github.com/rednafi/link-patrol/cmd/link-patrol
+    ```
 
 ## Quickstart
 
@@ -77,8 +77,8 @@ Run the following command to list the URL status with a 2 second timeout for eac
 link-patrol -f examples/sample_1.md -t 2s
 ```
 
-By default, it'll exit with a non-zero code if any of the URLs is invalid or unreachable. Here's
-how the output looks:
+By default, it'll exit with a non-zero code if any of the URLs is invalid or unreachable.
+Here's how the output looks:
 
 ```txt
 Link patrol

examples/sample_1.md

@@ -5,4 +5,5 @@ This is a [reference style] URL.
 This is a footnote[^1] URL.
 
 [reference style]: https://reference.com
+
 [^1]: https://gen.xyz/

examples/sample_2.md

@@ -1,34 +1,46 @@
 # Comprehensive Markdown File with Various URL Definitions
 
 ## Inline URLs
+
 This is an [inline URL](https://example.com).
 
 ## Reference Style URLs
+
 This is a [reference style URL][ref-style].
 
 ## Reference Style with Title
+
 This is a [reference with title][ref-title].
 
 ## Footnote Style URLs
+
 This is a footnote[^1] URL.
 
 ## Image URLs
+
 This is an image URL: ![Alt text](https://example.com/image.jpg "Image Title")
 
 ## Image with Reference Style
+
 This is a referenced image: ![Alt text][image-ref]
 
 ## Long URL
-This is a [long URL](https://www.terminusapp.com/blog/short-urls-vs-long-urls/#:~:text=On%20the%20other%20hand%2C%20long,folders%2C%20subfolders%2C%20and%20parameters.)
+
+This is a
+[long URL](https://www.terminusapp.com/blog/short-urls-vs-long-urls/#:~:text=On%20the%20other%20hand%2C%20long,folders%2C%20subfolders%2C%20and%20parameters.)
 
 ## Automatic URL Linking
+
 <https://example.com>
 
 ## Email Address Linking
+
 <mailto:[email protected]>
 
 ## Reference Definitions
+
 [ref-style]: https://referencestyle.com
 [ref-title]: https://referencestyle.com "Reference Style with Title"
 [image-ref]: https://example.com/image.jpg
+
 [^1]: https://footnote.com

examples/sample_3.md

@@ -0,0 +1 @@
+<!-- An empty markdown file -->

src/cli.go

@@ -33,7 +33,7 @@ func readMarkdown(filepath string) ([]byte, error) {
 }
 
 // Extract URLs from markdown content
-func findLinks(markdown []byte) []string {
+func findLinks(markdown []byte) ([]string, error) {
 	var links []string
 
 	// Parse the markdown content
@@ -62,10 +62,10 @@ func findLinks(markdown []byte) []string {
 		return ast.WalkContinue, nil
 	})
 	if err != nil {
-		log.Fatal(err)
+		return links, err
 	}
 
-	return links
+	return links, nil
 }
 
 // Check the state of a URL and save the result in a struct
@@ -137,7 +137,9 @@ func printLinkRecord(w *tabwriter.Writer, linkRecord linkRecord) {
 }
 
 // Check the state of a list of URLs
-func checkLinks(w *tabwriter.Writer, urls []string, timeout time.Duration, errOk bool) {
+func checkLinks(
+	w *tabwriter.Writer, urls []string, timeout time.Duration, errOk bool,
+) error {
 	var wg sync.WaitGroup
 	var mutex sync.Mutex
 	var hasError bool
@@ -155,29 +157,39 @@ func checkLinks(w *tabwriter.Writer, urls []string, timeout time.Duration, errOk
 			if urlState.StatusCode >= 400 {
 				hasError = true
 			}
-
 			mutex.Unlock()
 			wg.Done()
 		}(url)
 	}
 	wg.Wait()
 
 	if hasError && !errOk {
-		log.Fatal("Some URLs are invalid or unreachable")
+		return fmt.Errorf("one or more URLs have an error status code")
 	}
+	return nil
 }
 
 // Orchestrate the whole process
 func orchestrate(w *tabwriter.Writer, filepath string, timeout time.Duration, errOk bool) {
 	defer w.Flush()
+
+	printFilepath(w, filepath)
+
 	// Read markdown file from filepath
 	markdown, err := readMarkdown(filepath)
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	urls := findLinks(markdown)
-	checkLinks(w, urls, timeout, errOk)
+	urls, err := findLinks(markdown)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	err = checkLinks(w, urls, timeout, errOk)
+	if err != nil {
+		log.Fatal(err)
+	}
 }
 
 // CLI
@@ -234,7 +246,6 @@ func Cli(w *tabwriter.Writer, version string, exitFunc func(int)) {
 		}
 
 		// Proceed with orchestration as filepath is provided
-		printFilepath(w, filepath)
 		orchestrate(w, filepath, timeout, errOk) // Your orchestrate function
 		return nil
 	}