Use nix flake prefetch to calculate first hash

cli/cmd/updateVersions.go

@@ -82,7 +82,6 @@ var updateVersionsCmd = &cobra.Command{
 
 func updateVersions(token string, versionsPath string, vendorHashPath string, minVersion *semver.Version, maxVersion *semver.Version) error {
 	nixPrefetchPath, err := exec.LookPath("nix-prefetch")
-	nurlPath, err := exec.LookPath("nurl")
 	if err != nil {
 		return fmt.Errorf("nix-prefetch not found: %w", err)
 	}
@@ -103,7 +102,7 @@ func updateVersions(token string, versionsPath string, vendorHashPath string, mi
 				log.Printf("Version %s found in file\n", version)
 			} else {
 				log.Printf("Computing hashes for %s\n", version)
-				hash, err := computeHash(nurlPath, tagName)
+				hash, err := computeHash(tagName)
 				if err != nil {
 					return fmt.Errorf("Unable to compute hash: %w", err)
 				}
@@ -178,16 +177,31 @@ func withReleases(token string, f func(release *github.RepositoryRelease) error)
 	return nil
 }
 
-func computeHash(nurlPath string, tagName string) (string, error) {
-	hash, err := runNurl(
-		nurlPath,
-		fmt.Sprintf("https://github.com/%s/%s", owner, repo),
-		tagName,
-		"--hash")
+func computeHash(tagName string) (string, error) {
+	cmd := exec.Command(
+		"nix", "flake", "prefetch",
+		"--extra-experimental-features", "nix-command flakes", "--json",
+		fmt.Sprintf("github:%s/%s/%s", owner, repo, tagName),
+	)
+
+	// Redirect stderr to the standard logger
+	cmd.Stderr = log.Writer()
+
+	// Get the output
+	output, err := cmd.Output()
 	if err != nil {
-		return "", err
+		return "", fmt.Errorf("command execution failed: %w", err)
+	}
+
+	// Parse JSON output to get hash
+	var result struct {
+		Hash string `json:"hash"`
 	}
-	return hash, nil
+	if err := json.Unmarshal(output, &result); err != nil {
+		return "", fmt.Errorf("failed to parse JSON output: %w", err)
+	}
+
+	return result.Hash, nil
 }
 
 func computeVendorHash(nixPrefetchPath string, vendorHashFile string, version *semver.Version, hash string) (string, error) {
@@ -218,18 +232,6 @@ func runNixPrefetch(nixPrefetchPath string, extraArgs ...string) (string, error)
 	return strings.TrimRight(string(output), "\n"), nil
 }
 
-func runNurl(nurlPath string, args ...string) (string, error) {
-    cmd := exec.Command(nurlPath, args...)
-    cmd.Stderr = log.Writer()
-
-    output, err := cmd.Output()
-    if err != nil {
-        return "", err
-    }
-
-    return strings.TrimSpace(string(output)), nil
-}
-
 func init() {
 	rootCmd.AddCommand(updateVersionsCmd)
 

cli/devenv.nix

@@ -6,7 +6,6 @@
   packages = [
     pkgs.cobra-cli
     pkgs.nix-prefetch
-    pkgs.nurl
   ];
 
   languages.go.enable = true;

versions.json

@@ -108,6 +108,10 @@
       "hash": "sha256-wJg/BfKWgDzv9HKOsNaq+l2jG37VbOtmBF+QEhNLQ1k=",
       "vendorHash": "sha256-YFsPxDlD7SqHo0x2UQnsJ5jDTp2JXdhEgDvtIpWVQ9o="
     },
+    "1.10.5": {
+      "hash": "sha256-6Y9r3VxL3DRvUaU6hLE+SdqjfIF+PAlXEYBPBc571QE=",
+      "vendorHash": "sha256-xyFguSjqUweZyoO97nkjLfJWS+eifNV7hpJUjh/6Z54="
+    },
     "1.2.0": {
       "hash": "sha256-5um+zS7MVL59SlxchjXdlhBGNdacbQgvg7BRAWnW5XU=",
       "vendorHash": "sha256-6x1cv+DKXH2yyMjIA6JY5EkTmWbwH4LBammXKtw2EZo="
@@ -372,7 +376,7 @@
   "latest": {
     "1.0": "1.0.11",
     "1.1": "1.1.9",
-    "1.10": "1.10.4",
+    "1.10": "1.10.5",
     "1.2": "1.2.9",
     "1.3": "1.3.10",
     "1.4": "1.4.7",