[bug] moon v2 offline mode still download wasm plugins

[sybernatus]

Describe the bug

I'm trying to migrate to moon v2 but the offline mode seems to download wasm plugins from internet.

• proto & moon are both installed during the image build
• I have no toolchains configured.
• My CI pipeline run with PROTO_OFFLINE=true as env variable
• I have also try to put the missing wasm in my image under one of PATH folder (system_toolchain-v1.0.2/system_toolchain.wasm)

It seems that the following error continue to show up.

Maybe the wasm must be placed at a very specific location to be detected and avoir downloading it?

moon ci :test :lint --quiet --cache off
Error: plugin::offline
  × Unable to download plugin. An internet connection is required to request
  │ https://github.com/moonrepo/plugins/releases/download/system_toolchain-
  │ v1.0.2/system_toolchain.wasm.
Step failed

Steps to reproduce

1. Configure moon in offline mode
2. Run a task without internet connection

Expected behavior

Should be run completely without internet access.

Screenshots

Here is the location of the wasm needed in my container:

And there is no toolchains.yml

moon.log

Environment

moon v2.0.4
proto v0.55.4

Additional context
I have attached some trace logs from the command I played

[sybernatus]

I might find a solution by adding the wasm plugin under .moon/plugins/toolchains & setting a .moon/toolchains.yml with the following content:

system:
  plugin: "file://plugins/toolchains/system_toolchain.wasm"

Could it be possible in future versions to handle this kind of plugin location directly by environment variables?

Because what could be the best in my opinion is to build the images with the wasm in the system and to only ask moon to point to a directory like ${HOME}/.moon/imported_plugins for example. Which cannot be done with the toolchains.yml file as it does not interpret the $HOME variable.

What do you think?

[milesj]

It should go in ~/.moon/plugins.

But also this should not run if there are no toolchains, so I'll fix that.

[sybernatus]

Thanks Miles ❤️

It should go in ~/.moon/plugins.

Yes I've also tried to put it in ~/.moon/plugins/system_toolchain.wasm or ~/.moon/plugins/toolchains/system_toolchain.wasm manually but it seems to not see it and moon is trying to download it anyway.

[milesj]

I think it hashes it, so you'll need to use the hash on the logs.