fs::create_dir_all() doesn't throw an error, but also does not work

huangapple
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英文:

fs::create_dir_all() doesn't throw an error, but also does not work

问题

fs::create_dir_all("$DOCUMENT/QueryIOProjects"); 的结果是 Ok()，并且打印输出 Projects Directory created at /Users/username/Documents/QueryIOProjects，但我无法在Finder或终端中看到任何文件夹。为了调试，我使用了read_dir方法来打印所有的DirEntry，它只输出了一个结果 dirEntry = QueryIOProjects，这让我更加困惑。

  1.     tauri::Builder::default()
  2.         .invoke_handler(tauri::generate_handler![greet])
  3.         .menu(menu)
  4.         .on_menu_event(menu_item_handler)
  5.         .setup(|app| {
  6.             let path_str = match path::parse(
  7.                 &app.config(),
  8.                 app.package_info(),
  9.                 &app.env(),
  10.                 "$DOCUMENT/QueryIOProjects",
  11.             ) {
  12.                 Ok(path) => path.to_string_lossy().to_string(),
  13.                 Err(_) => "Path creation failed".to_string(),
  14.             };
  15.             {
  16.                 let result = fs::create_dir_all("$DOCUMENT/QueryIOProjects");
  17.                 match result {
  18.                     Ok(_) => println!("Projects Directory created at {}", path_str),
  19.                     Err(_) => println!("Failed to create project directory at {}", path_str),
  20.                 }
  21.             }
  22.             {
  23.                 let result = fs::read_dir("$DOCUMENT/");
  24.                 match result {
  25.                     Ok(readDir) => {
  26.                         readDir.for_each(|dirEntryResult| match dirEntryResult {
  27.                             Ok(dirEntry) => println!(
  28.                                 "dirEntry = {}",
  29.                                 dirEntry
  30.                                     .file_name()
  31.                                     .into_string()
  32.                                     .expect("dir entry string conversion failed")
  33.                             ),
  34.                             Err(err) => println!("error in dirEntry"),
  35.                         });
  36.                     }
  37.                     Err(_) => println!("Failed to read directory at {}", "$DOCUMENT/"),
  38.                 }
  39.             }
  40.             Ok(())
  41.         })
  42.         .run(tauri::generate_context!())
  43.         .expect("error while running tauri application");
  1. {
  2.   "tauri": {
  3.     "allowlist": {
  4.       "all": false,
  5.       "shell": {
  6.         "all": false,
  7.         "open": true
  8.       },
  9.       "fs": {
  10.         "scope": [
  11.           "$DOCUMENT",
  12.           "$DOCUMENT/*"
  13.         ],
  14.         "all": true,
  15.         "readFile": true,
  16.         "writeFile": true,
  17.         "readDir": true,
  18.         "copyFile": true,
  19.         "createDir": true,
  20.         "removeFile": true,
  21.         "renameFile": true,
  22.         "exists": true
  23.       },
  24.       "path": {
  25.         "all": true
  26.       },
  27.       "dialog": {
  28.         "open": true,
  29.         "save": true
  30.       }
  31.     }
  32.   }
  33. }
英文:

I'm new to Rust, so maybe I'm not understanding this correctly. I am creating a multiplatform application using Tauri + Yew. In my backend code when I'm setting up the app, I wanted to create a directory in the $DOCUMENT directory, for projects made inside my application.

The result for fs::create_dir_all("$DOCUMENT/QueryIOProjects"); is Ok() and it prints Projects Directory created at /Users/username/Documents/QueryIOProjects, but I cant see any folder in Finder or via terminal. To debug, I used the read_dir method to print all the DirEntrys,which prints out only one output dirEntry = QueryIOProjects, leaving me even more confused.

src-tauri/src/main.rs:

  1.     tauri::Builder::default()
  2.         .invoke_handler(tauri::generate_handler![greet])
  3.         .menu(menu)
  4.         .on_menu_event(menu_item_handler)
  5.         .setup(|app| {
  6.             let path_str = match path::parse(
  7.                 &app.config(),
  8.                 app.package_info(),
  9.                 &app.env(),
  10.                 "$DOCUMENT/QueryIOProjects",
  11.             ) {
  12.                 Ok(path) => path.to_string_lossy().to_string(),
  13.                 Err(_) => "Path creation failed".to_string(),
  14.             };
  15.             {
  16.                 let result = fs::create_dir_all("$DOCUMENT/QueryIOProjects");
  17.                 match result {
  18.                     Ok(_) => println!("Projects Directory created at {}", path_str),
  19.                     Err(_) => println!("Failed to create project directory at {}", path_str),
  20.                 }
  21.             }
  22.             {
  23.                 let result = fs::read_dir("$DOCUMENT/");
  24.                 match result {
  25.                     Ok(readDir) => {
  26.                         readDir.for_each(|dirEntryResult| match dirEntryResult {
  27.                             Ok(dirEntry) => println!(
  28.                                 "dirEntry = {}",
  29.                                 dirEntry
  30.                                     .file_name()
  31.                                     .into_string()
  32.                                     .expect("dir entry string conversion failed")
  33.                             ),
  34.                             Err(err) => println!("error in dirEntry"),
  35.                         });
  36.                     }
  37.                     Err(_) => println!("Failed to read directory at {}", "$DOCUMENT/"),
  38.                 }
  39.             }
  40.             Ok(())
  41.         })
  42.         .run(tauri::generate_context!())
  43.         .expect("error while running tauri application");

tauri.conf.json:

  1. {
  2.   "tauri": {
  3.     "allowlist": {
  4.       "all": false,
  5.       "shell": {
  6.         "all": false,
  7.         "open": true
  8.       },
  9.       "fs": {
  10.         "scope": [
  11.           "$DOCUMENT",
  12.           "$DOCUMENT/*"
  13.         ],
  14.         "all": true,
  15.         "readFile": true,
  16.         "writeFile": true,
  17.         "readDir": true,
  18.         "copyFile": true,
  19.         "createDir": true,
  20.         "removeFile": true,
  21.         "renameFile": true,
  22.         "exists": true
  23.       },
  24.       "path": {
  25.         "all": true
  26.       },
  27.       "dialog": {
  28.         "open": true,
  29.         "save": true
  30.       }
  31.     }
  32.   }
  33. }

答案1

得分: 2

你正在创建文件夹，位于字面路径"$DOCUMENT/QueryIOProjects"，而不是path_str。在你的计算机上有一个名为$DOCUMENT的文件夹，字面上就是这个名字。

英文:

You are creating the folder at the literal path "$DOCUMENT/QueryIOProjects", not path_str. Somewhere on your computer is a folder called, literally, $DOCUMENT.

huangapple
  • 本文由 发表于 2023年5月22日 02:24:31
  • 转载请务必保留本文链接：https://go.coder-hub.com/76301342.html
  • rust
  • tauri
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