Release tag and Control-c fixes

main.go

@@ -5,7 +5,6 @@ import (
 	"flag"
 	"fmt"
 	"os"
-	"os/signal"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -27,7 +26,7 @@ var (
 		"gemma2:9b-instruct-q8_0",
 		"gemma2:9b-instruct-fp16",
 
-                "llama3.1:latest",
+		"llama3.1:latest",
 		"llama3.1:8b-instruct-q8_0",
 		"llama3.1:8b-instruct-fp16",
 		"llama3.1:70b-instruct-q4_0",
@@ -39,9 +38,9 @@ var (
 		"qwen2.5:7b-instruct-fp16",
 		"qwen2.5:32b-instruct-fp16",
 		"qwen2.5-coder:1.5b",
-		
+
 		"deepseek-coder:6.7b",
-		
+
 		"mixtral:8x7b",
 	}
 	// https://github.com/andthattoo/ollama-workflows/edit/main/src/program/models.rs#L76
@@ -171,7 +170,7 @@ func main() {
 	}
 
 	// get latest dkn_compute binary version
-	latestVersion, err := utils.GetComputeLatestTag(*use_compute_dev_version)
+	computeVersion, err := utils.GetComputeVersionTag(!(*use_compute_dev_version), *use_compute_dev_version, false)
 	if err != nil {
 		fmt.Println("Couldn't get the latest dkn-compute version")
 		utils.ExitWithDelay(1)
@@ -181,24 +180,24 @@ func main() {
 	// check dkn-compute binary has already installed
 	if utils.FileExists(utils.ComputeBinaryFileName()) {
 		// compare current and latest versions
-		if latestVersion != envvars["DKN_COMPUTE_VERSION"] {
-			fmt.Printf("New dkn-compute version detected (%s), downloading it...\n", latestVersion)
-			if err := utils.DownloadLatestComputeBinary(latestVersion, working_dir, dkn_compute_binary); err != nil {
+		if computeVersion != envvars["DKN_COMPUTE_VERSION"] {
+			fmt.Printf("New dkn-compute version detected (%s), downloading it...\n", computeVersion)
+			if err := utils.DownloadLatestComputeBinary(computeVersion, working_dir, dkn_compute_binary); err != nil {
 				fmt.Printf("Error during downloading the latest dkn-compute binary %s\n", err)
 				utils.ExitWithDelay(1)
 			}
-			envvars["DKN_COMPUTE_VERSION"] = latestVersion
+			envvars["DKN_COMPUTE_VERSION"] = computeVersion
 		} else {
 			fmt.Printf("Current version is up to date (%s)\n", envvars["DKN_COMPUTE_VERSION"])
 		}
 	} else {
 		// couldn't find the dkn-compute binary, download it
-		fmt.Printf("Downloading the latest dkn-compute binary (%s)\n", latestVersion)
-		if err := utils.DownloadLatestComputeBinary(latestVersion, working_dir, dkn_compute_binary); err != nil {
+		fmt.Printf("Downloading the latest dkn-compute binary (%s)\n", computeVersion)
+		if err := utils.DownloadLatestComputeBinary(computeVersion, working_dir, dkn_compute_binary); err != nil {
 			fmt.Printf("Error during downloading the latest dkn-compute binary %s\n", err)
 			utils.ExitWithDelay(1)
 		}
-		envvars["DKN_COMPUTE_VERSION"] = latestVersion
+		envvars["DKN_COMPUTE_VERSION"] = computeVersion
 	}
 
 	// dump the final env
@@ -245,16 +244,7 @@ func main() {
 			fmt.Printf("ERROR during running exe, %s", err)
 			utils.ExitWithDelay(1)
 		}
-		fmt.Println("All good! Compute node is up and running.")
-		fmt.Println("\nUse Control-C to exit")
-
-		sig := make(chan os.Signal, 1)
-		signal.Notify(sig, os.Interrupt)
-		<-sig
-
-		fmt.Println("\nShutting down...")
 
-		fmt.Println("\nbye")
 		os.Exit(0)
 	}
 

utils/cmd.go

@@ -99,14 +99,19 @@ func RunCommand(working_dir string, outputDest string, wait bool, timeout time.D
 	// If wait is false, handle output asynchronously
 	if !wait {
 		go func() {
-			// Handle logging asynchronously, so it continues even after the main program ends
+			// Ensure to check if logFile is not nil
 			if logFile != nil {
-				stdoutPipe, _ := cmd.StdoutPipe()
-				stderrPipe, _ := cmd.StderrPipe()
-
 				// Start goroutines to copy the command's stdout and stderr to the log file
-				go io.Copy(logFile, stdoutPipe)
-				go io.Copy(logFile, stderrPipe)
+				stdoutPipe, stdoutErr := cmd.StdoutPipe()
+				stderrPipe, stderrErr := cmd.StderrPipe()
+
+				// Check for pipe errors before starting goroutines
+				if stdoutErr == nil && stdoutPipe != nil {
+					go io.Copy(logFile, stdoutPipe)
+				}
+				if stderrErr == nil && stderrPipe != nil {
+					go io.Copy(logFile, stderrPipe)
+				}
 			}
 			// Ensure the process runs to completion
 			cmd.Wait()

utils/compute.go

@@ -10,74 +10,152 @@ import (
 	"strings"
 )
 
-// GetComputeLatestTag fetches the latest tag from the DKN Compute Node repository on GitHub.
-// This tag represents the latest version of the compute node.
+// GetComputeVersionTag fetches a specific tag from the DKN Compute Node repository on GitHub based on the provided parameters.
+// It can return the latest stable release, the latest development version, or the previous stable release.
 //
 // Parameters:
-//   - dev: A boolean parameter. If true, it returns the latest tag with the '-dev' suffix.
-//     If false, it returns the latest tag without the '-dev' suffix.
+//   - latest: If true, it returns the latest stable release from the repository.
+//   - dev: If true, it returns the latest tag with the '-dev' suffix.
+//   - previous_latest: If true, it returns the previous stable release before the latest.
 //
 // Returns:
-//   - string: The latest tag (version) as a string, filtered by the '-dev' suffix based on the dev parameter.
+//   - string: The requested tag (version) as a string, based on the provided parameters.
 //   - error: An error if the request fails, the response cannot be parsed, or no valid tags are found.
-func GetComputeLatestTag(dev bool) (string, error) {
+//
+// Note:
+//   - If `latest` is true, the function fetches the latest release from the GitHub API.
+//   - If `dev` is true, it searches for the latest tag with the '-dev' suffix from the sorted tags.
+//   - If `previous_latest` is true, it returns the previous stable release tag (ignoring '-dev' tags).
+//   - The function prioritizes parameters in the following order: latest, dev, previous_latest.
+func GetComputeVersionTag(latest bool, dev bool, previous_latest bool) (string, error) {
+	if latest {
+		url := "https://api.github.com/repos/firstbatchxyz/dkn-compute-node/releases/latest"
+
+		resp, err := http.Get(url)
+		if err != nil {
+			return "", fmt.Errorf("failed to make request: %v", err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusOK {
+			return "", fmt.Errorf("failed to get latest release, status code: %d", resp.StatusCode)
+		}
+
+		body, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return "", fmt.Errorf("failed to read response: %w", err)
+		}
+
+		// Create a map to store the response
+		var result map[string]interface{}
+		if err := json.Unmarshal(body, &result); err != nil {
+			return "", fmt.Errorf("failed to parse JSON: %v", err)
+		}
+
+		// Extract the tag_name from the map
+		tagName, ok := result["tag_name"].(string)
+		if !ok {
+			return "", fmt.Errorf("tag_name not found or not a string")
+		}
+
+		return tagName, nil
+
+	} else if dev {
+		tags, err := GetSortedTags()
+		if err != nil {
+			return "", err
+		}
+		// Iterate through the tags and return the first one based on the 'dev' parameter
+		for _, tag := range tags {
+			tagName, ok := tag["name"].(string)
+			if !ok {
+				return "", fmt.Errorf("failed to extract tag name")
+			}
+
+			// Return the first tag with '-dev' suffix if dev is true
+			if strings.HasSuffix(tagName, "-dev") {
+				return tagName, nil
+			}
+		}
+	} else if previous_latest {
+		tags, err := GetSortedTags()
+		if err != nil {
+			return "", err
+		}
+		latest_encountered := false
+		// Iterate through the tags and return the previous latest (in the order of semantic versioning)
+		for _, tag := range tags {
+			tagName, ok := tag["name"].(string)
+			if !ok {
+				return "", fmt.Errorf("failed to extract tag name")
+			}
+
+			// skip the latest tag and -dev suffix tags
+			if !strings.HasSuffix(tagName, "-dev") && !latest_encountered {
+				latest_encountered = true
+				continue
+			}
+			//
+			if !strings.HasSuffix(tagName, "-dev") && latest_encountered {
+				return tagName, nil
+			}
+		}
+	}
+
+	return "", fmt.Errorf("no valid tags found")
+}
+
+// GetSortedTags retrieves all tags from the DKN Compute Node repository on GitHub and returns them as a sorted list.
+//
+// It fetches the tags from the GitHub API and parses them into a list of maps. Each map represents a tag with its attributes.
+//
+// Returns:
+//   - []map[string]interface{}: A slice of maps representing the tags from the repository, each containing tag attributes (e.g., name, commit).
+//   - error: An error if the request fails, the response cannot be parsed, or no tags are found.
+func GetSortedTags() ([]map[string]interface{}, error) {
 	url := "https://api.github.com/repos/firstbatchxyz/dkn-compute-node/tags"
 
-	// get and parse the tags
+	// get and parse the all the tags
 	resp, err := http.Get(url)
 	if err != nil {
-		return "", fmt.Errorf("failed to make request: %w", err)
+		return nil, fmt.Errorf("failed to make request: %w", err)
 	}
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {
-		return "", fmt.Errorf("request failed with status code: %d", resp.StatusCode)
+		return nil, fmt.Errorf("request failed with status code: %d", resp.StatusCode)
 	}
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
-		return "", fmt.Errorf("failed to read response: %w", err)
+		return nil, fmt.Errorf("failed to read response: %w", err)
 	}
 
 	var tags []map[string]interface{}
 	if err := json.Unmarshal(body, &tags); err != nil {
-		return "", fmt.Errorf("failed to parse JSON: %w", err)
+		return nil, fmt.Errorf("failed to parse JSON: %w", err)
 	}
 	if len(tags) == 0 {
-		return "", fmt.Errorf("no tags found")
+		return nil, fmt.Errorf("no tags found")
 	}
-
-	// Iterate through the tags and return the first one based on the 'dev' parameter
-	for _, tag := range tags {
-		tagName, ok := tag["name"].(string)
-		if !ok {
-			return "", fmt.Errorf("failed to extract tag name")
-		}
-
-		if dev {
-			// Return the first tag with '-dev' suffix if dev is true
-			if strings.HasSuffix(tagName, "-dev") {
-				return tagName, nil
-			}
-		} else {
-			// Return the first tag without '-dev' suffix if dev is false
-			if !strings.HasSuffix(tagName, "-dev") {
-				return tagName, nil
-			}
-		}
-	}
-
-	return "", fmt.Errorf("no valid tags found")
+	return tags, nil
 }
 
 // DownloadLatestComputeBinary downloads the latest compute binary for the current operating system and architecture
-// from the DKN Compute Node GitHub repository.
+// from the DKN Compute Node GitHub repository, and saves it to the specified directory with the specified file name.
 //
 // Parameters:
+//   - version: The version of the binary to download (e.g., v0.2.4).
 //   - workingDir: The directory where the binary will be saved.
 //   - file: The name of the file to save the binary as.
 //
 // Returns:
-//   - error: An error if the download or file preparation fails.
+//   - error: An error if the download, file preparation, or version retrieval fails.
+//
+// Behavior:
+//   - Constructs the download URL based on the provided version, operating system, and architecture.
+//   - If the specified version cannot be downloaded (e.g., due to a 404 error), the function attempts to download the previous stable version.
+//   - If the previous version download also fails, an error is returned.
+//   - After downloading, the function applies necessary permissions to the binary by calling `PrepareComputeBinary`.
 func DownloadLatestComputeBinary(version, workingDir, file string) error {
 	os, arch := GetOSAndArch()
 	extension := ""
@@ -88,8 +166,27 @@ func DownloadLatestComputeBinary(version, workingDir, file string) error {
 	// releases/download/v0.2.4-dev
 	url := fmt.Sprintf("https://github.com/firstbatchxyz/dkn-compute-node/releases/download/%s/%s", version, asset_name)
 	destPath := filepath.Join(workingDir, file)
-	if err := DownloadFile(url, destPath); err != nil {
-		return err
+	status_code, err := DownloadFile(url, destPath)
+	if err != nil {
+		if status_code == 404 {
+			// if the release exists but the downloads responds with 404, it means the build didn't finished yet
+			// use the previous latest version
+			fmt.Println("Warning: The latest compute binaries are currently being built. Downloading the previous version. You can restart the launcher in ~20 minutes to run the latest version.")
+			version, err = GetComputeVersionTag(false, false, true)
+			if err != nil {
+				return err
+			}
+			asset_name := fmt.Sprintf("dkn-compute-binary-%s-%s%s", os, arch, extension)
+			url := fmt.Sprintf("https://github.com/firstbatchxyz/dkn-compute-node/releases/download/%s/%s", version, asset_name)
+			_, err = DownloadFile(url, destPath)
+			if err != nil {
+				// if its couldn't download the previous latest version, raise an error
+				return err
+			}
+		} else {
+			// raise error for any other status code
+			return err
+		}
 	}
 
 	// give the executable privledges etc.

utils/env.go

@@ -107,37 +107,43 @@ func FileExists(parts ...string) bool {
 }
 
 // DownloadFile downloads a file from the specified URL and saves it to the specified path.
+// It returns the HTTP response status code and an error if any issue occurs during the download or file writing process.
 //
 // Parameters:
 //   - url: The URL from which to download the file.
 //   - path: The local file path where the downloaded file will be saved.
 //
 // Returns:
-//   - error: Returns an error if the download or file writing fails, otherwise nil.
-func DownloadFile(url, path string) error {
+//   - int: The HTTP response status code if the download is successful or the specific response code if a failure occurs.
+//     If the error is unrelated to the HTTP response (e.g., file creation error), it returns -1.
+//   - error: Returns an error if the download, HTTP response, or file writing fails; otherwise, returns nil.
+func DownloadFile(url, path string) (int, error) {
 	resp, err := http.Get(url)
+	// use -1 for errors unrelated to http response
+	response_status_code := -1
 	if err != nil {
-		return fmt.Errorf("failed to download file: %v", err)
+		return response_status_code, fmt.Errorf("failed to download file: %v", err)
 	}
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {
-		return fmt.Errorf("bad status: %s", resp.Status)
+		response_status_code = resp.StatusCode
+		return response_status_code, fmt.Errorf("bad status: %s", resp.Status)
 	}
 
 	// write it as .env
 	out, err := os.Create(path)
 	if err != nil {
-		return fmt.Errorf("failed to create file: %v", err)
+		return -1, fmt.Errorf("failed to create file: %v", err)
 	}
 	defer out.Close()
 
 	// write the body to file
 	_, err = io.Copy(out, resp.Body)
 	if err != nil {
-		return fmt.Errorf("failed to write to file: %v", err)
+		return -1, fmt.Errorf("failed to write to file: %v", err)
 	}
-	return nil
+	return 200, nil
 }
 
 // FetchEnvFileFromDknRepo downloads the .env example file from the DKN GitHub repository
@@ -153,7 +159,7 @@ func FetchEnvFileFromDknRepo(working_dir string) (map[string]string, error) {
 	// fetch from github
 	url := "https://raw.githubusercontent.com/firstbatchxyz/dkn-compute-node/master/.env.example"
 	path := filepath.Join(working_dir, ".env")
-	if err := DownloadFile(url, path); err != nil {
+	if _, err := DownloadFile(url, path); err != nil {
 		return nil, err
 	}