fix(formula): strip v prefix from version numbers for Homebrew compli…

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.9.7] - 2025-11-08
+
+### Fixed
+- Version numbers in formulas now strip "v" prefix for proper Homebrew compliance
+
 ## [0.9.6] - 2025-11-08
 
 ### Added

Sources/NnexKit/Formula/FormulaContentGenerator.swift

@@ -15,13 +15,14 @@ public enum FormulaContentGenerator {
         assetURL: String,
         sha256: String
     ) -> String {
+        let sanitizedVersion = sanitizeVersion(version)
         return """
         class \(FormulaNameSanitizer.sanitizeFormulaName(name)) < Formula
             desc "\(details)"
             homepage "\(homepage)"
             url "\(assetURL)"
             sha256 "\(sha256)"
-            version "\(version)"
+            version "\(sanitizedVersion)"
             license "\(license)"
 
             def install
@@ -50,11 +51,12 @@ public enum FormulaContentGenerator {
         let hasIntel = (intelURL?.isEmpty == false) && (intelSHA256?.isEmpty == false)
 
         if hasArm && hasIntel {
+            let sanitizedVersion = sanitizeVersion(version)
             return """
             class \(FormulaNameSanitizer.sanitizeFormulaName(name)) < Formula
                 desc "\(details)"
                 homepage "\(homepage)"
-                version "\(version)"
+                version "\(sanitizedVersion)"
                 license "\(license)"
 
                 on_macos do
@@ -111,3 +113,11 @@ public enum FormulaContentGenerator {
         }
     }
 }
+
+
+// MARK: - Private Methods
+private extension FormulaContentGenerator {
+    static func sanitizeVersion(_ version: String) -> String {
+        version.hasPrefix("v") ? String(version.dropFirst()) : version
+    }
+}

Tests/NnexKitTests/FormulaContentGeneratorTests.swift

@@ -360,3 +360,73 @@ extension FormulaContentGeneratorTests {
         #expect(urlLine?.starts(with: "    url") == true)
     }
 }
+
+
+// MARK: - Version Sanitization Tests
+extension FormulaContentGeneratorTests {
+    @Test("Strips v prefix from version in single binary formula")
+    func stripsVPrefixFromVersionInSingleBinary() {
+        let content = FormulaContentGenerator.makeFormulaFileContent(
+            name: testName,
+            details: testDetails,
+            homepage: testHomepage,
+            license: testLicense,
+            version: "v1.0.0",
+            assetURL: testAssetURL,
+            sha256: testSHA256
+        )
+
+        #expect(content.contains("version \"1.0.0\""))
+        #expect(!content.contains("version \"v1.0.0\""))
+    }
+
+    @Test("Strips v prefix from version in multi-arch formula")
+    func stripsVPrefixFromVersionInMultiArch() {
+        let content = FormulaContentGenerator.makeFormulaFileContent(
+            name: testName,
+            details: testDetails,
+            homepage: testHomepage,
+            license: testLicense,
+            version: "v2.5.3",
+            armURL: testArmURL,
+            armSHA256: testArmSHA256,
+            intelURL: testIntelURL,
+            intelSHA256: testIntelSHA256
+        )
+
+        #expect(content.contains("version \"2.5.3\""))
+        #expect(!content.contains("version \"v2.5.3\""))
+    }
+
+    @Test("Preserves version without v prefix in single binary formula")
+    func preservesVersionWithoutVPrefixInSingleBinary() {
+        let content = FormulaContentGenerator.makeFormulaFileContent(
+            name: testName,
+            details: testDetails,
+            homepage: testHomepage,
+            license: testLicense,
+            version: "3.0.0",
+            assetURL: testAssetURL,
+            sha256: testSHA256
+        )
+
+        #expect(content.contains("version \"3.0.0\""))
+    }
+
+    @Test("Preserves version without v prefix in multi-arch formula")
+    func preservesVersionWithoutVPrefixInMultiArch() {
+        let content = FormulaContentGenerator.makeFormulaFileContent(
+            name: testName,
+            details: testDetails,
+            homepage: testHomepage,
+            license: testLicense,
+            version: "4.2.1",
+            armURL: testArmURL,
+            armSHA256: testArmSHA256,
+            intelURL: testIntelURL,
+            intelSHA256: testIntelSHA256
+        )
+
+        #expect(content.contains("version \"4.2.1\""))
+    }
+}