Cian-H/simple_blender_server
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Improved error handling

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Cian Hughes
2025-05-21 13:56:30 +01:00
parent 03849cd99d
commit 2ed4c89078
1 changed files with 17 additions and 11 deletions
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22
main.go
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@@ -9,6 +9,7 @@ import (
"net/http" "net/http"
"os" "os"
"os/exec" "os/exec"
"strings"
"text/template" "text/template"
) )
@@ -96,16 +97,16 @@ func handleCreateModel(w http.ResponseWriter, r *http.Request) {
cmd := exec.Command("blender", "-b", "--python", tmpFile.Name()) cmd := exec.Command("blender", "-b", "--python", tmpFile.Name())
output, err := cmd.CombinedOutput() output, err := cmd.CombinedOutput()
if err != nil { blenderOutput := string(output)
blenderError := string(output) if err != nil || strings.Contains(blenderOutput, "Traceback") || strings.Contains(blenderOutput, "Error:") {
log.Printf("Command execution failed: %v, Output: %s", err, blenderError) log.Printf("Command execution failed: %v, Output: %s", err, blenderOutput)
errorResponse := struct { errorResponse := struct {
Error string `json:"error"` Error string `json:"error"`
BlenderLog string `json:"blender_log"` BlenderLog string `json:"blender_log"`
ExitCode string `json:"exit_code"` ExitCode string `json:"exit_code"`
}{ }{
Error: "Blender render failed", Error: "Blender render failed",
BlenderLog: blenderError, BlenderLog: blenderOutput,
ExitCode: err.Error(), ExitCode: err.Error(),
} }
w.Header().Set("Content-Type", "application/json") w.Header().Set("Content-Type", "application/json")
@@ -114,23 +115,28 @@ func handleCreateModel(w http.ResponseWriter, r *http.Request) {
return return
} }
log.Printf("Blender command executed; output: %s", string(output)) fileInfo, err := os.Stat(tempFilePath)
if os.IsNotExist(err) || fileInfo.Size() == 0 {
log.Printf("Error: GLB file was not created or is empty at %s", tempFilePath)
if _, err := os.Stat(tempFilePath); os.IsNotExist(err) {
log.Printf("Error: GLB file was not created at %s", tempFilePath)
errorResponse := struct { errorResponse := struct {
Error string `json:"error"` Error string `json:"error"`
Details string `json:"details"` Details string `json:"details"`
BlenderLog string `json:"blender_log"`
}{ }{
Error: "Failed to generate GLB file", Error: "Failed to generate GLB file",
Details: "The Blender process completed but did not generate a model file. This typically indicates an error in the model code.", Details: "The Blender process completed but did not generate a valid model file. This typically indicates an error in the model code.",
BlenderLog: string(output),
} }
w.Header().Set("Content-Type", "application/json") w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusUnprocessableEntity) w.WriteHeader(http.StatusUnprocessableEntity)
json.NewEncoder(w).Encode(errorResponse) json.NewEncoder(w).Encode(errorResponse)
return return
} }
log.Printf("Blender command executed; output: %s", string(output))
glbData, err := os.ReadFile(tempFilePath) glbData, err := os.ReadFile(tempFilePath)
if err != nil { if err != nil {
log.Printf("Error reading GLB file: %v", err) log.Printf("Error reading GLB file: %v", err)