[Bug?] Cannot resolve -p with Mill 0.11.6

[zhutmost]

First, thank the developers for your efforts.

I use the Steward GitHub action to manage my Scala projects' dependencies.
I am using some mill 0.11 features in a project, so I bumped the mill-version in my scala-steward-action configurations to 0.11.6.

But the action workflow fails. The following is its log:

Run scala-steward-org/scala-steward-action@v2
  with:
    author-name: GitHub Action
    author-email: [email protected]
    github-app-id: 304424
    github-app-installation-id: 37217608
    github-app-key: ***
  
    github-app-auth-only: true
    repo-config: ./.scala-steward.conf
    repos-file: repos.md
    mill-version: 0.11.6
    cache-ttl: 2hours
    max-buffer-size: 16384
    coursier-cli-url: https://github.com/coursier/launchers/raw/master/cs-x86_64-pc-linux.gz
    github-api-url: https://api.github.com
    github-repository: zhutmost/scala-steward
    github-token: ***
    ignore-opts-files: true
    sign-commits: false
    timeout: 20min
✓ Default Scala Steward configuration set to: ./.scala-steward.conf
✓ Using multiple repos file: repos.md
✓ GitHub App information retrieved from GitHub
✓ Scala Steward workspace created
Trying to restore workspace contents from cache...
  Received 4389 of 4389 (100.0%), 0.1 MBs/sec
  Cache Size: ~0 MB (4389 B)
  /usr/bin/tar -xf /home/runner/work/_temp/1cbd8d7a-4c5b-4433-b96c-87859609440d/cache.tzst -P -C /home/runner/work/scala-steward/scala-steward --use-compress-program unzstd
  Cache restored successfully
  Scala Steward workspace contents restored from cache
Launching scala-steward
  2024-01-21 09:01:22,188 INFO   
    ____            _         ____  _                             _
   / ___|  ___ __ _| | __ _  / ___|| |_ _____      ____ _ _ __ __| |
   \___ \ / __/ _` | |/ _` | \___ \| __/ _ \ \ /\ / / _` | '__/ _` |
    ___) | (_| (_| | | (_| |  ___) | ||  __/\ V  V / (_| | | | (_| |
   |____/ \___\__,_|_|\__,_| |____/ \__\___| \_/\_/ \__,_|_|  \__,_|
   v0.28.0
   
  2024-01-21 09:01:24,510 INFO  Loaded 224 artifact migration(s)
  2024-01-21 09:01:24,869 INFO  Loaded 33 Scalafix migration(s)
  2024-01-21 09:01:25,121 INFO  Loaded 2 repo config(s)
  2024-01-21 09:01:25,595 INFO  Run self checks
  2024-01-21 09:01:25,678 INFO  Using git version 2.43.0
  2024-01-21 09:01:26,531 INFO  Using scalafix 0.11.1
  2024-01-21 09:01:27,470 INFO  Using scalafmt 3.7.17
  2024-01-21 09:01:28,283 INFO  Removing any run-specific files
  2024-01-21 09:01:28,320 INFO  ──────────── Steward zhutmost/chipmunk ────────────
  2024-01-21 09:01:28,323 INFO  Check cache of zhutmost/chipmunk
  2024-01-21 09:01:29,103 INFO  Clone zhutmost/chipmunk
  2024-01-21 09:01:30,332 INFO  Refresh cache of zhutmost/chipmunk
  2024-01-21 09:01:30,513 INFO  Get dependencies in . from Mill
  2024-01-21 09:02:01,358 ERROR Steward zhutmost/chipmunk failed
  org.scalasteward.core.io.process$ProcessFailedException: '"SBT_OPTS=-Xmx2048m -Xss8m -XX:MaxMetaspaceSize=512m" mill -i -p /home/runner/scala-steward/workspace/repos/zhutmost/chipmunk/scala-steward.sc show org.scalasteward.mill.plugin.StewardPlugin/extractDeps' exited with code 1.
    % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                   Dload  Upload   Total   Spent    Left  Speed
  
    0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
   92 50.3M   92 46.4M    0     0   118M      0 --:--:-- --:--:-- --:--:--  118M
  100 50.3M  100 50.3M    0     0   123M      0 --:--:-- --:--:-- --:--:--  123M
  Preparing Java 11.0.21 runtime; this may take a minute or two ...
  [info] compiling 1 Scala source to /home/runner/scala-steward/workspace/repos/zhutmost/chipmunk/out/mill-build/compile.dest/classes ...
  [info] done compiling
  Cannot resolve -p. Try `mill resolve _` to see what's available.
  
  	at org.scalasteward.core.io.process$.$anonfun$slurp$7(process.scala:78)
  	at org.scalasteward.core.io.process$.$anonfun$slurp$7$adapted(process.scala:72)
  	at flatMap @ org.scalasteward.core.io.process$.$anonfun$slurp$5(process.scala:72)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at modify @ fs2.internal.Scope.close(Scope.scala:262)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:163)
  	at rethrow$extension @ fs2.Compiler$Target.$anonfun$compile$1(Compiler.scala:1[57](https://github.com/zhutmost/scala-steward/actions/runs/7600175536/job/20698116078#step:4:57))
  	at as @ org.scalasteward.core.io.process$.$anonfun$readLinesIntoBuffer$1(process.scala:126)
  	at get @ fs2.internal.Scope.openScope(Scope.scala:275)
  	at flatMap @ fs2.Compiler$Target.flatMap(Compiler.scala:1[63](https://github.com/zhutmost/scala-steward/actions/runs/7600175536/job/20698116078#step:4:63))
  	at flatMap @ fs2.Pull$.$anonfun$compile$21(Pull.scala:1215)
  	at update @ fs2.internal.Scope.releaseChildScope(Scope.scala:224)
  2024-01-21 09:02:01,3[69](https://github.com/zhutmost/scala-steward/actions/runs/7600175536/job/20698116078#step:4:69) INFO  ──────────── Total time: Steward zhutmost/chipmunk: 33s 41ms ────────────
  2024-01-21 09:02:01,384 INFO  ──────────── Total time: run: 35s [78](https://github.com/zhutmost/scala-steward/actions/runs/7600175536/job/20698116078#step:4:79)9ms ────────────
Error:  ✕ Launching scala-steward failed

I guess the key is that "Cannot resolve -p. Try mill resolve _ to see what's available."
but I have no idea how to fix it. Does someone have any ideas?

[zhutmost]

The workflow configuration yaml is like this:

# Workflow to upgrade the Scala dependencies automatically

on:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * 0'

name: Upgrade Scala Dependencies with Steward

jobs:
  scala-steward:
    runs-on: ubuntu-latest
    name: Launch Scala Steward
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Launch Scala Steward
        uses: scala-steward-org/scala-steward-action@v2
        with:
          author-name: "GitHub Action"
          author-email: "[email protected]"
          github-app-id: "*******"
          github-app-installation-id: "*******"
          github-app-key: ${{ secrets.APP_PRIVATE_KEY }}
          github-app-auth-only: 'true'
          repo-config: "./.scala-steward.conf"
          repos-file: 'repos.md'
          mill-version: '0.11.6'

[fthomas]

It looks like Scala Steward ran code for Mill < 0.11 to extract dependencies. Does the zhutmost/chipmunk repo has a .mill-version and does it contain a version >= 0.11?

[zhutmost]

No, I don't specify a mill version in my project.
And because I use some 0.11 API in my build.sc, it will throw another error (xxx type not found) when running with mill 0.10.x.

[fthomas]

Sounds like a .mill-version with a 0.11 version would fix this issue then.

[zhutmost]

I read the code referenced by you. Are you sure Mill 0.11 has an option "-p"?

It looks like Scala Steward ran code for Mill < 0.11 to extract dependencies. Does the zhutmost/chipmunk repo has a .mill-version and does it contain a version >= 0.11?

[fthomas]

If you add .mill-version with a 0.11 version, it will run this code.

[zhutmost]

Ok, let me try. And the configuration mill-version in github action does not take effect?

Run scala-steward-org/scala-steward-action@v2
  with:
    mill-version: 0.11.6 // *******************this line
    ....

[olivierdeckers]

adding a .mill-version file works, but specifying the mill-version argument in the action as @zhutmost mentions still triggers the pre 0.11 code path.
This code doesn't seem to be taking that github-actions argument into account, looking only at files:

scala-steward/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/MillAlg.scala

Line 82 in 9ac858c

private def getMillVersion(buildRootDir: File): F[Option[Version]] =