Adds sh action

[JayjeetAtGithub]

Addresses #619

[pep8speaks]

Hello @JayjeetAtGithub! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2019-05-11 07:14:22 UTC

[JayjeetAtGithub]

@ivotron You may have a look.

[ivotron]

thanks a lot @JayjeetAtGithub! please take a look at the comments

[JayjeetAtGithub]

@ivotron Please review ! Thanks.

[ivotron]

thanks a lot @JayjeetAtGithub ! Please take a look at the comments. In addition, would it be possible to update the docs, in particular the end of this section (where we have a NOTE). What we need to specify is that for actions running on the host, the $PWD is set to different values depending on whether an action is defined (i.e. an action folder is created), or uses="sh" is used. In the former, $PWD is set to the folder of the action, whereas in the latter it is set to the root of the project

[ivotron]

in the case of uses = "sh", this does not apply, since we are running from the root of the project

[JayjeetAtGithub]

If we need to execute a bash script located in the root, then how to reference it ?

[ivotron]

do you mean something like the following?

action "run on host" {
  uses = "sh"
  runs = "./scriptatroot"
}

[ivotron]

can also be:

action "run on host" {
  uses = "sh"
  runs = "scriptatroot"
}

[JayjeetAtGithub]

@ivotron Thanks! Got it.

[ivotron]

yeah, that's a good idea!

[JayjeetAtGithub]

@ivotron Please check ! Thanks

[ivotron]

thanks @JayjeetAtGithub . Do you think you can add the changes to the docs in this PR as well? What I mentioned above.

[JayjeetAtGithub]

@ivotron Updated the docs.

[ivotron]

thanks a lot @JayjeetAtGithub !