Problem with setting shell environment variables that have eval in them

[james-shprd]

Hi,

I’m trying to set an environment variable from the output of a command which finds the current nodejs project version, e.g.:

      - run:
      name: Get project version
      command: |
        if [ $CIRCLE_BRANCH = 'master' ]; then
          echo export TAG=$(eval node -p "require('../package.json').version") >> $BASH_ENV
        else
          echo export TAG=$(eval node -p "require('../package.json').version")_$CIRCLE_BUILD_NUM >> $BASH_ENV
        fi

However this doesn’t get executed correctly and I get the following error in the console logs:

/bin/bash: eval: line 3: syntax error near unexpected token `('
/bin/bash: eval: line 3: `node -p require('../package.json').version'

I’ve tried combinations of adding and escaping more quotes but nothing seems to work. Any ideas?

Thanks

[james-shprd]

The solution is:

  - run:
      name: Get project version
      command: |
        if [ $CIRCLE_BRANCH = 'master' ]; then
          echo export TAG=$(eval node -p "require\(\'./package.json\'\).version") >> $BASH_ENV
        else
          echo export TAG=$(eval node -p "require\(\'./package.json\'\).version")_$CIRCLE_BUILD_NUM >> $BASH_ENV
        fi