Windows 10中能否为无扩展名Dockerfile设置默认打开应用？

Absolutely! You can set a default app based on the filename (not just file extension) to open your extensionless Dockerfile directly with Visual Studio Code. The steps vary a bit depending on your operating system—here's how to pull it off for each one:

Windows #

The easiest way is to use Command Prompt (run as Administrator) to create a file association specifically for the Dockerfile name:

1. Open Command Prompt as an administrator.
2. Run these two commands in order:

   assoc Dockerfile=Dockerfile.File
   ftype Dockerfile.File="C:\Program Files\Microsoft VS Code\Code.exe" "%1"
   

   Note: If you installed VS Code for your user only (not system-wide), replace the path with C:\Users\<YourUsername>\AppData\Local\Programs\Microsoft VS Code\Code.exe.

After running these, double-clicking your Dockerfile should launch it directly in VS Code.

macOS #

You have two straightforward options here—graphical or command-line:

Option 1: Use duti (Command-Line) #

This is the most precise method. First, install duti via Homebrew (if you don't have Homebrew, install it first from the official site):

brew install duti

Then run this command to associate Dockerfile with VS Code:

duti -s com.microsoft.VSCode Dockerfile all

Option 2: Automator Quick Action (Graphical) #

If you prefer a point-and-click approach:

1. Open Automator and create a new Quick Action.
2. In the left sidebar, search for "Run Shell Script" and drag it to the right pane.
3. Set "Workflow receives" to Files or Folders in Finder.
4. Replace the default script with:

   open -a "Visual Studio Code" "$@"
   

5. Save the quick action with a name like "Open Dockerfile with VS Code".
6. To set it as default: Right-click your Dockerfile → Get Info → Under "Open with", select your new quick action → Click Change All.

Linux #

The process uses xdg-mime (a standard tool for managing MIME types) to link the Dockerfile name to VS Code:

1. Create a custom MIME type for Dockerfiles. Open a text editor and save this as ~/.local/share/applications/code-dockerfile.desktop:

   [Desktop Entry]
   Type=Application
   Name=VS Code for Dockerfile
   Exec=/usr/bin/code %F
   MimeType=text/x-dockerfile;
   

   Note: If code isn't in your PATH, replace the Exec path with the full location of VS Code (e.g., /opt/microsoft/vscode/bin/code).

2. Link the Dockerfile filename to your new MIME type:

   echo "Dockerfile=text/x-dockerfile" >> ~/.config/mime.types
   

3. Set VS Code as the default app for this MIME type:

   xdg-mime default code-dockerfile.desktop text/x-dockerfile
   

For GNOME users, you can also do this graphically: Right-click the Dockerfile → Properties → Open With → Select VS Code → Click Set as Default.

内容的提问来源于stack exchange，提问作者JamesFaix