elm-upgrade hangs and doesn't continue

[andys8]

1. git clone https://github.com/jhrcek/graph-editor
2. cd graph-editor
3. elm-upgrade or npx elm-upgrade

elm-upgrade
INFO: Found elm at /home/andreas/.nix-profile/bin/elm
INFO: Found elm 0.19.1
INFO: Found elm-format at /home/andreas/.nix-profile/bin/elm-format
INFO: Found elm-format 0.8.3

***
*** ./elm.json already exists.
*** It looks like this project has already been upgraded to Elm 0.19.
*** Would you like me to upgrade your project's dependencies?
***

[Y/n]: Y

INFO: Updating elm-version to 0.19.1
INFO: Installing latest version of elm/browser
Here is my plan:

  Add:
    elm/browser    1.0.2

Would you like me to update your elm.json accordingly? [Y/n]:

Can't press a button or continue. I hope this issue is reproducible.

System

Tested in alacritty and st terminal Tested with npx and with npm install -g elm-upgrade 0.19.8

 OS: Manjaro 20.0 Lysia
 Kernel: x86_64 Linux 5.4.35-1-MANJARO
 Shell: fish 3.1.1

[bisgardo]

+1 experiencing exact same issue on PopOS 20.04/bash:

$ npx elm-upgrade@latest
npx: installed 57 in 1.396s
INFO: Found elm at node_modules/.bin/elm
INFO: Found elm 0.19.1
INFO: Found elm-format at /home/mo/.nvm/versions/node/v14.4.0/bin/elm-format
INFO: Found elm-format 0.8.3

***
*** ./elm.json already exists.
*** It looks like this project has already been upgraded to Elm 0.19.
*** Would you like me to upgrade your project's dependencies?
***

[Y/n]: y

INFO: Installing latest version of icidasset/elm-material-icons
Here is my plan:

  Add:
    ianmackenzie/elm-interval          2.0.0
    ianmackenzie/elm-units             2.6.0
    ianmackenzie/elm-units-interval    1.1.0
    icidasset/elm-material-icons       4.0.0

Would you like me to update your elm.json accordingly? [Y/n]: 

(btw. in the first question, Y is capital but it defaults to n)

[avh4]

huh, that prompt "Would you like me to update your elm.json accordingly? [Y/n]: " is coming from elm itself, which elm-upgrade is calling out to. I wonder if somehow the console streams aren't getting connected correctly when it runs elm? Or maybe the call to elm is succeeding, but then it's hanging afterwards for some reason?

[2mol]

Same problem here, on MacOS. Completely locks up my terminal, not even Ctrl+C works

[guspower]

just hit this myself today with a 0.19.1 project on a x86_64 linux environment:

• interpreter: GNU bash, version 5.1.8(1)-release (x86_64-pc-linux-gnu)
• terminal: kitty 0.23.1

does anyone have any ideas how I might go about debugging this one?

[avh4]

Possible debugging ideas (no particular order):

• confirm whether or not it happens in other shells (sh, zsh)
• confirm whether or not it happens in other terminals (direct console, tmux, iTerm, xterm, alacritty, etc)
• confirm whether or not it happens in a shell with a clean environment (disable .profile, .bashrc, etc)
• maybe there's a way to let it hang and then kill it from another terminal and run it in some way that nodejs will print out a stack trace when it's killed?

[avh4]

I guess a workaround for folks hitting this would be to mount your project into a node docker container to run the upgrade, and then throw the container away once you're done?

[Erudition]

Still having this issue. :/