Conditional on a job fails if double quotes are used

[djolez]

Describe the bug
Using double quotes in a conditional for a job results in

The workflow is not valid. <file_path>: Unexpected symbol: '"workflow_dispatch"'. Located at position 22 within expression: github.event_name != "workflow_dispatch"

To Reproduce
Steps to reproduce the behavior:

1. Create a job with a conditional

test-job:
    name: Use double quotes
    if: github.event_name != "workflow_dispatch"
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

2. Run it
3. See above mentioned error
4. Use single quotes instead if: github.event_name != 'workflow_dispatch', it works

Expected behavior
Job should pass regardless of type of quotes used

Runner Version and Platform

2.274.2

OS of the machine running the runner? Ubuntu 18.04

What's not working?

N/A

Job Log Output

N/A

Runner and Worker's Diagnostic Logs

N/A

[memchenko]

Hi!
I got the same error with hashFiles("**/yarn.lock") when trying to cache node_modules using actions/cache@v2

[solarmosaic-kflorence]

Ran into this as well #834 (comment) 😕

[drecali]

@djolez @solarmosaic-kflorence
According to the docs it seems like this is the intended behavior.

You must use single quotes. Escape literal single-quotes with a single quote.

myString: ${{ 'Mona the Octocat' }}

I just experienced this problem and it was quite inconvenient to debug. I thought single or double quotes didn't matter. I know actions use YAML syntax but I'm not clear what syntax Expressions use. It would be great if it's possible to allow the use of both types of quotes inside Expressions.

I'll include this in case it helps anyone debug. In my case the action failed with a status Startup failure. I included the errors I got below. I suspected the double quotes because the double quoted string was referred to as a symbol and included the double quotes. I would expect a symbol to be a special character like an escape sequence such as \n. I read this page of the YAML docs and I didn't understand clearly why double quotes might not be allowed in this case.(https://www.yaml.info/learn/quote.html).

Invalid workflow file : .github/workflows/cypress-tests.yml#L32
The workflow is not valid. .github/workflows/cypress-tests.yml (Line: 32, Col: 13): Unexpected symbol: '"--t"'. Located at position 44 within expression: contains(github.event.head_commit.message, "--t")

Here is the line of code responsible:

if: contains(github.event.head_commit.message, "--t")

Here is the same line with single quotes. This works:

if: contains(github.event.head_commit.message, '--t')

[solarmosaic-kflorence]

@drecali I'm aware that the documentation mentions only single quote is valid (after the fact, of course). However, I think that behavior is not intuitive, since double quotes are valid throughout the rest of the YAML syntax. Unless there is a good reason not to support double quotes, it should be fixed.

[drecali]

@solarmosaic-kflorence
I agree with you 100%. I didn't see a link to the specific line in the documentation or in #834 so I wanted to add it. The docs were mentioned quite far up the comment thread in #834 so that's why I added the link here and tagged you because you referred that issue here. I hope expressions become quote-agnostic soon, or at least I'd like to understand technical reasons why that may not be possible/ideal.