Use VS Code Language mode in addition to regex to filter files?

[ddahan]

I'm using Django templates which have a .html extension, exactly like other html files that are not django templates.
I want to use specific formatters for these two kinds of files:

• Prettier for normal html files (VS Code Language mode: HTML)
• Djhtml for django templates (VS Code Language mode: Django HTML)

I wrote a runonsave config:

        "emeraldwalk.runonsave": {
            "commands": [
                {
                    "match": "\\.html$",
                    "cmd": "djhtml -i ${file}"
                },
            ]
        },

Now, obviously, my normal html files are first auto formatted by Prettier, then by djhtml. This is not what I want.
I think a way to fix this would be runonsave allowing me to match files in a specific language mode, rather than just by a regex.

What do you think?

[ddahan]

For now, my workaround is to use: "match": ".*/templates/.*\\.html$" to target specific Django html files. It's not a real solution but it does the job.

[bmingles]

I like the idea of adding languageid support. One option that comes to mind is using vscode settings [languageid] settings to isolate. I'll definitely consider adding this one.