`daemon: tailwind --watch` exits and restarts in a loop

[marcuswhybrow]

modd.conf

tailwind.config.js {
  daemon: tailwind --watch --output ./build/tailwind.css
}

Output of running modd

11:16:21: daemon: tailwind --watch --output ./build/tailwind.css

Rebuilding...
exited: exit status 0
>> restart backoff... 1000ms
>> starting...

Rebuilding...
exited: exit status 0
>> restart backoff... 2000ms

Which continues forever.

Expected output:

Rebuilding...

Done in 977ms.

[marcuswhybrow]

Still an issue with tailwind v3.4.1 and modd v0.8

[wader]

Same with modd master? the only other things i can think of is the either the env or stdin/stdout/stderr is different. To look at env maybe add a env ; ... before and see if you see something fishy, for stdin/stdout/stderr maybe do tailwind --watch --output ./build/tailwind.css 2>&1 < /dev/null | cat in an interactive shell to force stderr/stdout to a non-tty and stdin reading from null device (seems to be what will end up happening).

[wader]

Try this daemon: tailwind --watch --output ./build/tailwind.css < /dev/stdin but i'm not sure hows stdin that will be, i guess it will be modd's that gets inherited down

[marcuswhybrow]

Same with modd master?

If I have time I'll look into the master build.

Try this daemon: tailwind --watch --output ./build/tailwind.css < /dev/stdin

Issue persists.

[wader]

Now when i think about it stdin will probably be /dev/null also, maybe something like sleep 999999 | tailwind ... could make tailwind have a stdin to block on and be happy, i suspect it exits when stdin ends

[marcuswhybrow]

Wow, that did it! Great thinking, I had no idea stdin was both needed, and didn't exist.

[wader]

🥳 do you know if other modd-like tools have the same issue with tailwind? not really sure what "foregrounded" tools should expect from stdin hmm

[marcuswhybrow]

Sorry, only used tailwind with modd, (inside Nix develop).

[mcinj]

My way around this has been to let modd watch my .go files and then call my mage functions to rebuild which includes calling tailwindcss. That way I don't have to let tailwindcss watch files directly. you could probably setup modd to watch your css, js, whatever files in the same way.

func GenerateTailWindCss() error {
	mg.SerialDeps(DevDependencies)
	fmt.Println("Generating Tailwind CSS files...")
	cmd := exec.Command("tailwindcss", "-i", "./static/css/tailwind.css", "-o", "./static/css/gen.css")
	o, err := cmd.CombinedOutput()
	fmt.Println(string(o))
	return err
}

// Build compile the app after installing any dependencies and generating any code
func Build() error {
	mg.SerialDeps(DevDependencies, GenerateTailWindCss, Migrate)
	fmt.Println("Building")
	cmd := exec.Command("go", "build", "-o", "build/app", "main.go")
	o, err := cmd.CombinedOutput()
	fmt.Println(string(o))
	return err
}

**/*.go* !**/*_test.go {
    prep: mage build
    daemon +sigterm: build/app
}

[elkks19]

This can be solved by using daemon: tailwindcss -i web/static/styles/input.css -o web/static/styles/tailwind.css --watch=always
as you can see here