please implement regexReplace in Templates

[themr0c]

Hello, here is the user story i would like to see in goss:

I would like to check the presence of some file, which is named with a pattern that can be calculated with a regex replacement from a variable that i already have.

For example I want to check the presence of a file /home/{{$prefixname}}/user/example, and $prefixname can be calculated from some variable (that i can get from readFile or from other means).

For the example lets say i can define $hostname:

{{ $hostname := readFile "/etc/hostname" }}

Now i would like to use this variable to calculate the content of the new variable $prefixname, with a regex replacement.

Some implementation one could think of would be something like following, except the fact that the strings package is not available:

{{ $prefixname := strings.Replace($hostname, "-sftp01", "", 1) }}

Is there already a way to achieve that? Is it something you would implement?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[aelsabbahy]

The addition of sprig made this possible #553

Here's an example where "foo.txt" contains the string "foo"

{{ $fcontent := readFile "/tmp/foo.txt" }}
{{ $prefixname := regexReplaceAll "oo$" $fcontent "" }}

matching:
  test:
    content: {{ $prefixname }}
    matches: "f"

[themr0c]

Thanks!