Merge pull request #140 from initia-labs/fix/extract-file-error

fix: extract snapshot error

Author: traviolus

README.md

@@ -21,6 +21,10 @@ Its primary purpose is to solve several key challenges:
 
 - Operating System: **Linux, macOS**
 - Go **v1.23** or higher when building from scratch
+- LZ4 compression tool
+  - For macOS: `brew install lz4`
+  - For Ubuntu/Debian: `apt-get install lz4`
+  - For other Linux distributions: Use your package manager to install lz4
 
 > **Important:** While Weave can run as root, it does not support switching users via commands like `sudo su ubuntu` or `su - someuser`. Instead, directly SSH or log in as the user you intend to run Weave with. For example:
 >

cmd/root.go

@@ -2,6 +2,8 @@ package cmd
 
 import (
 	"context"
+	"fmt"
+	"os/exec"
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -23,6 +25,17 @@ func Execute() error {
 				return err
 			}
 			analytics.Initialize(Version)
+
+			// Skip LZ4 check for certain commands that don't need it
+			if cmd.Name() != "version" && cmd.Name() != "analytics" {
+				if _, err := exec.LookPath("lz4"); err != nil {
+					return fmt.Errorf("lz4 is not installed. Please install it first:\n" +
+						"- For macOS: Run 'brew install lz4'\n" +
+						"- For Ubuntu/Debian: Run 'apt-get install lz4'\n" +
+						"- For other Linux distributions: Use your package manager to install lz4")
+				}
+			}
+
 			return nil
 		},
 		PersistentPostRunE: func(cmd *cobra.Command, args []string) error {

models/initia/run_l1_node.go

@@ -1864,12 +1864,9 @@ func snapshotExtractor(ctx context.Context) tea.Cmd {
 		}
 
 		cmd := exec.Command("bash", "-c", fmt.Sprintf("lz4 -c -d %s | tar -x -C %s", filepath.Join(userHome, common.WeaveDataDirectory, common.SnapshotFilename), initiaHome))
-		cmd.Stdout = os.Stdout
-		cmd.Stderr = os.Stderr
-
-		err = cmd.Run()
+		output, err := cmd.CombinedOutput()
 		if err != nil {
-			return ui.ErrorLoading{Err: fmt.Errorf("[error] Failed to extract snapshot: %v", err)}
+			return ui.ErrorLoading{Err: fmt.Errorf("[error] Failed to extract snapshot: %v (output: %s)", err, string(output))}
 		}
 		return ui.EndLoading{}
 	}