bug: Capacitor 3.x sync command stopped running on vagrant (or any other virtualization platform)

[mic345]

Bug Report

Use case

In our company we prefer to develop using vagrant which is a box virtualization platform. This allows us all to develop on the exact same environment as production, in addition to dropping and starting boxes at will.

Specifically, we develop our ionic app on vagrant as well, making sure we all use the same ionic configuration (node, ionic, capacitor, etc.) Since virtualizing macOS is more complex, we use amazon linux as the vagrant guest OS and install the missing pod command. Otherwise everything is working smooth using Capacitor 2.x.

Bug

Starting on Capacitor 3.x npx cap sync issues the below error and does not install the iOS pods.
[warn] Skipping pod install on unsupported OS

Capacitor Version

$ npx cap doctor
💊   Capacitor Doctor  💊

Latest Dependencies:

  @capacitor/cli: 3.2.3
  @capacitor/core: 3.2.3
  @capacitor/android: 3.2.3
  @capacitor/ios: 3.2.3

Installed Dependencies:

  @capacitor/android: not installed
  @capacitor/cli: 3.2.3
  @capacitor/core: 3.2.3
  @capacitor/ios: 3.2.3

[error] Xcode is not installed

Platform(s)

Guest box:

$ uname -a
Linux test.test.app 4.14.243-185.433.amzn2.x86_64 #1 SMP Mon Aug 9 05:55:52 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Current Behavior

1. Within the guest box run npx cap sync
2. Bug: pod installation is skipped even if the command pod is installed.
3. Cause: the function shouldPodInstall checks the OS instead of checking the command pod existence.

Expected Behavior

Continue with the operation and complete the pods installations, allowing to run xcode from the host.

Code Reproduction

1. Install vagrant (or any other virtualization platform).
2. Start an amazon linux box.
3. On the guest update ruby and install cocoapods

sudo amazon-linux-extras enable -y ruby2.6
sudo yum clean metadata
sudo yum install git ruby ruby-devel ruby-doc gcc gcc-c++ redhat-rpm-config
sudo gem install cocoapods --version 1.11.2

4. Start a sample ionic project and add ios support

cd /vagrant    # a folder shared both on the host and the guest
project_id="app.test.test"
project_name="Test"
ionic start "$project_name" "sidemenu" --type="angular" --project-id="$project_id" --package-id="$project_id" --capacitor --no-interactive
cd $project_id
ionic cap add "ios"

5. Install the pods

cd /vagrant/ios/App; pod repo update; pod install

6. Run npx cap sync

Other Technical Details

$ npm --version
6.14.13

$ node --version
v14.17.0

$ pod --version
1.11.2

[ionitron-bot]

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