New GitHub actions run in empty folders - github

Question

I am working with new GitHub actions, idea of a workflow below is to run when pr is opened or synchronised, it should first check out and install dependencies and afterwards run few yarn scripts
name: PR to Master
on:
pull_request:
branches:
- master
jobs:
# Synchronize or Opened
synchronized_or_opened:
name: Synchronize or Opened
runs-on: ubuntu-latest
steps:
- uses: actions/bin/filter#master
with:
args: action 'opened|synchronize'
# Add Labels
add_labels:
name: Add Labels
runs-on: ubuntu-latest
steps:
- uses: actions/labeler#v2
with:
repo-token: ${{ secrets.GITHUB_TOKEN }}
needs: synchronized_or_opened
# Checkout
checkout:
name: Checkout
runs-on: ubuntu-latest
steps:
- uses: actions/checkout#master
needs: synchronized_or_opened
# Install Dependencies
install_dependencies:
name: Install Dependencies
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x]
steps:
- run: yarn dep:install-npm
needs: checkout
# Typecheck
typecheck:
name: Typecheck
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x]
steps:
- run: yarn typecheck
needs: install_dependencies
# Prettier
prettier:
name: Prettier
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x]
steps:
- run: yarn prettier
needs: install_dependencies
# ESLint
eslint:
name: ESlint
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x]
steps:
- run: yarn eslint
needs: install_dependencies
# Danger
danger:
name: Danger
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x]
steps:
- run: yarn danger
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
needs: install_dependencies
At the moment it successfully gets to a checkout stage, but once Install job is ran I get following error
error Couldn't find a package.json file in
"/home/runner/work/myRepo/myRepo"
Judging by this checkout either failed or I am in a wrong folder?

Answer 1

As mentioned in the Workflow syntax docs:
Each job runs in a fresh instance of the virtual environment specified by runs-on.
From what I can see here, you're doing the checkout step in a completely separate job from others. Doing it that way it does not affect other jobs in any way. It should actually be defined inside those jobs where your npm CLI commands are executed.
Here's an example of how it would look like in one of your jobs:
jobs:
# (...) Other jobs
# Install Dependencies
install_dependencies:
name: Install Dependencies
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x]
steps:
- uses: actions/checkout#master
- run: yarn dep:install-npm
needs: checkout
# (...) Other jobs
There are some general examples in GitHub starter workflow templates.