* provisioner/shell: add support for Env variables
As mentioned in issue #11670, the Shell provider did not support Env
variable declarations in the HCL templates.
This commit adds the capability to the code.
* provisioner/powershell: add support for Env vars
* provisioner/windows-shell: support Env variables
* allowing to set shell env vars from a key/value map.
* tests
This new map will work alongside the `environment_vars` but it allows using a
datasource value seamlessly. At validation, and because `environment_vars` was
an array of strings containing `KEY=value`, using datsources would not work,
because these values are not known yet and would evaluate to `<unknown>`. With
this, the value and the key can be unknown and will validate correctly for
datasources.
* start using `go:generate packer-sdc struct-markdown`
* Update Makefile
remove @go install ./cmd/struct-markdown
* run go generate for struct-markdown
* use //go:generate packer-sdc mapstructure-to-hcl2
* run go generate for mapstructure-to-hcl2
* remove struct-markdown and mapstructure-to-hcl2
* vendor vendors
* mapstructure-to-hcl2: when we see a map generate an attribute spec and not a block spec
this will alow to do
tags = {
key = "value"
}
instead of
tags {
key = "value"
}
This will also enable using variables directly for those tags
* generate code
* update tests
This function can be used to check if a Provisioner has been marked for testing within the ACC_TEST_PROVISIONERS environment variable.
While testing I found that the shell acceptance test were also running when trying to run powershell tests.
Before change
```
⇶ ACC_TEST_BUILDERS=amazon-ebs ACC_TEST_PROVISIONERS=powershell go test -v ./provisioner/shell/... -timeout=1h
=== RUN
TestShellProvisioner/testing_amazon-ebs_builder_against_shell_provisioner
2020/04/06 15:18:12 ui: amazon-ebs: output will be in this color.
2020/04/06 15:18:12 ui:
2020/04/06 15:18:12 Build debug mode: false
2020/04/06 15:18:12 Force build: false
2020/04/06 15:18:12 On error:
2020/04/06 15:18:12 Preparing build: amazon-ebs
2020/04/06 15:18:12 Waiting on builds to complete...
2020/04/06 15:18:12 Starting build run: amazon-ebs
2020/04/06 15:18:12 Running builder: amazon-ebs
```
After changes
```
⇶ ACC_TEST_BUILDERS=amazon-ebs ACC_TEST_PROVISIONERS=powershell go test -v ./provisioner/shell/... -timeout=1h
--- SKIP: TestShellProvisioner (0.00s)
provisioners.go:88: Provisioner "shell" not defined in ACC_TEST_PROVISIONERS
```
Lucas Bajolet
Adrien Delorme
Megan Marsh
Sylvia Moss
Wilken Rivera
Lars Lehtonen