Use of docker files in GitHub Actions-CodePudding

I want to use pandoc to generate pdfs from Markdown files in a Github Action. For this purpose, I intended to use an existing Docker container to improve performance. But unfortunately, I could not simply switch between a native ubuntu-latest and pandoc/latex:2.9 by adding a corresponding container reference (deleting the # in line 6). In this case, I received an unexpected error message that did not occur without the pandoc container.

name: Execute_pandoc
on: [push]

jobs:
  Run_pandoc:
    runs-on: ubuntu-latest
    #container: pandoc/latex:2.16

    steps:
      - name: Illustrate the problem
        run: |
             echo "Hello World"
             dirlist=(`ls *`)

Run echo "Hello World"
Hello World
/__w/_temp/2ac5de2c-2847-4b00-8a97-ba3bb034898e.sh: line 2: syntax error: unexpected "("
Error: Process completed with exit code 2.

CodePudding user response：

The syntax error you're getting is because shell doesn't understand your command. Try setting different shell or change command.

Keep in mind that base image for pandoc/latex in your example is alpine which uses ash. You could simply use another pandoc image that's based on some other distro.

Here's an example:

name: Execute_pandoc
on: [push]

jobs:
  Run_pandoc:
    runs-on: ubuntu-latest
    container: pandoc/ubuntu-latex
    steps:
      - name: Illustrate the problem
        run: |
             echo "Hello World"
             dirlist=(`ls /*`)
             echo ${dirlist[@]}
        shell: bash