Cannot setup Flutter with melos and FVM

[alberto-sf]

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Which mobile framework are you using?

Flutter (Dart)

Steps to reproduce

1 . Use flutter: fvm
2. Configure melos and set sdkPath: .fvm/flutter_sdk to use FVM
3. Follow the documentation and set ln -s $FLUTTER_ROOT $CM_BUILD_DIR/.fvm/flutter_sdk

We have configured the step as recommended:

- &install_melos
  name: Install Melos
    script: |
      ln -s $FLUTTER_ROOT $CM_BUILD_DIR/.fvm/flutter_sdk
      dart pub global activate melos
      melos bootstrap

Expected results

Thedart pub global activate melos and following commands execute successfully

Actual results

melos.yaml: SDK path is not valid. Could not find dart tool at /Users/builder/clone/.fvm/flutter_sdk/bin/dart

Build failed :|
Step 3 script Install Melos exited with status code 1

Build id (optional)

669642b0612f74af82a0590e

[dam-ease]

Hello @alberto-sf,
From the logs, ln: /Users/builder/clone/.fvm/flutter_sdk: No such file or directory. I see it's not fetching the directory. Can you try to echo $FLUTTER_ROOT, you should see the output using the snippet below:

- name: flutter sybmolic link check
script: |
echo "FLUTTER_ROOT is set to: $FLUTTER_ROOT"
echo "CM_BUILD_DIR is set to: $CM_BUILD_DIR"
if [ -d "$CM_BUILD_DIR/.fvm/" ]; then
echo "$CM_BUILD_DIR/.fvm/ exists."
else
echo "$CM_BUILD_DIR/.fvm/ does not exist, creating it now."
mkdir -p $CM_BUILD_DIR/.fvm/
fi

ln -s $FLUTTER_ROOT $CM_BUILD_DIR/.fvm/flutter_sdk
echo "Symbolic link created."
echo "Verifying symbolic link..."
ls -l $CM_BUILD_DIR/.fvm/flutter_sdk
$CM_BUILD_DIR/.fvm/flutter_sdk/bin/flutter --version

[alberto-sf]

Thank you very much @dam-ease, I have added this code to my step and it now works 😄 for reference, here's the full code:

    - &install_melos
      name: Install Melos
      script: |
        echo "FLUTTER_ROOT is set to: $FLUTTER_ROOT"
        echo "CM_BUILD_DIR is set to: $CM_BUILD_DIR"

        if [ -d "$CM_BUILD_DIR/.fvm/" ]; then
          echo "$CM_BUILD_DIR/.fvm/ exists."
        else
          echo "$CM_BUILD_DIR/.fvm/ does not exist, creating it now."
          mkdir -p $CM_BUILD_DIR/.fvm/
        fi

        ln -s $FLUTTER_ROOT $CM_BUILD_DIR/.fvm/flutter_sdk
        echo "Symbolic link created."
        echo "Verifying symbolic link..."
        ls -l $CM_BUILD_DIR/.fvm/flutter_sdk
        $CM_BUILD_DIR/.fvm/flutter_sdk/bin/flutter --version

        dart pub global activate melos
        melos bootstrap

Should this be included in the documentation? Because it currently just tells to use

ln -s $FLUTTER_ROOT $CM_BUILD_DIR/.fvm/flutter_sdk

but it doesn't seem to be enough

[dam-ease]

Thanks for your response @alberto-sf.
Glad it works!
I look into the documentation and update it accordingly!