{"record":{"id":"dee88cfbda3ef910","repo":"flipped-aurora/gin-vue-admin","slug":"s-w-dee88c","errorCode":null,"errorMessage":"删除新建文件 %s 失败: %w","messagePattern":"删除新建文件 (.+?) 失败: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/service/system/auto_code_task.go","lineNumber":234,"sourceCode":"\tfor i := len(applied) - 1; i >= 0; i-- {\n\t\tindex := applied[i]\n\t\tif index < 0 || index >= len(task.files) {\n\t\t\treturn fmt.Errorf(\"自动代码回滚索引无效: %d\", index)\n\t\t}\n\t\tfile := &task.files[index]\n\t\tcurrentHash, exists, err := hashAutoCodeTarget(file.TargetPath)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif file.Existed && exists && currentHash == file.BeforeHash {\n\t\t\tcontinue\n\t\t}\n\t\tif !exists || currentHash != file.AfterHash {\n\t\t\treturn fmt.Errorf(\"%w: %s\", errAutoCodeFileConflict, file.TargetPath)\n\t\t}\n\t\tif !file.Existed {\n\t\t\tif err = os.Remove(file.TargetPath); err != nil && !errors.Is(err, fs.ErrNotExist) {\n\t\t\t\treturn fmt.Errorf(\"删除新建文件 %s 失败: %w\", file.TargetPath, err)\n\t\t\t}\n\t\t\tcontinue\n\t\t}\n\t\tif err = replaceAutoCodeFileAtomically(file.TargetPath, file.BeforeContent, file.Mode); err != nil {\n\t\t\treturn fmt.Errorf(\"恢复自动代码文件 %s 失败: %w\", file.TargetPath, err)\n\t\t}\n\t}\n\treturn nil\n}\n\nfunc (task *autoCodeFileTask) cleanup() {\n\tif task != nil && task.stagingDir != \"\" {\n\t\t_ = os.RemoveAll(task.stagingDir)\n\t\ttask.stagingDir = \"\"\n\t}\n}\n\nfunc joinAutoCodeRollbackError(cause, rollbackErr error) error {","sourceCodeStart":216,"sourceCodeEnd":252,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/service/system/auto_code_task.go#L216-L252","documentation":"When rolling back a file that did not exist before the task (file.Existed == false), rollback deletes it. If os.Remove fails with any error other than ErrNotExist, the removal failed and rollback aborts with this wrapped error naming the path.","triggerScenarios":"os.Remove(newFile) returns a real error during rollback — typically EACCES/EPERM (file or containing directory not writable by the process), EBUSY (file held open/locked on Windows), or the path turned into a directory.","commonSituations":"Server process lacks write permission on the generated directory (e.g. root-created files, read-only mount), Windows locks the file while a watcher/editor has it open, or the target was replaced by a directory between apply and rollback.","solutions":["Fix permissions on the file and its parent directory so the server process can delete it (chown/chmod or run as the owning user)","Close programs holding the file open (editors, `go run`, nodemon/vite watchers) and retry","Check that the path is still a regular file, not a directory, and remove the intruding entry manually","On Windows, ensure the file isn't read-only (clear the read-only attribute)"],"exampleFix":"// before\n-rw-r--r-- 1 root root api.go   # server runs as www-data\n// after\nsudo chown www-data:www-data server/api/v1/api.go","handlingStrategy":"validation","validationCode":"if err := unix.Access(dir, unix.W_OK); err != nil {\n    return fmt.Errorf(\"cannot delete in %s: %w\", dir, err)\n}\n// and verify target is a regular file\nst, err := os.Stat(targetPath)\nif err == nil && !st.Mode().IsRegular() {\n    return fmt.Errorf(\"%s is not a regular file\", targetPath)\n}","typeGuard":null,"tryCatchPattern":"if err := commitAutoCodeFileTask(task, publish, persist); err != nil {\n    if strings.Contains(err.Error(), \"删除新建文件\") {\n        var path string\n        fmt.Sscanf(err.Error(), \"删除新建文件 %s 失败\", &path)\n        fmt.Printf(\"manually remove %s after fixing permissions\\n\", path)\n    }\n}","preventionTips":["Run the server as a user owning the server/ and web/ trees","Avoid generating into root-owned or read-only mounts","On Windows clear read-only attributes on generated paths","Don't point generation at directories watched/locked by other tools"],"tags":["go","filesystem","permissions","rollback"],"backgroundTag":"file-delete-permission-denied","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}