Chain register

[marcelovani]

ClassRegister

This is a proof of concept.
I would like to be able to call chain commands without having to specify --file or other arguments, because it takes too much time to write them. I would like to just type

drupal chain:someting

Also, since site:new is not currently available, I would like to have it as a chain command

drupal chain:site:new
This would be the content of the chain-site-new.yml

commands:
## Build from template
  - command: exec
    arguments:
      bin: 'composer create-project %{{project|dennisdigital/drupal-project:8.x-dev}}:%{{version|8.x-dev}} %{{directory|/vagrant/repos/new-site}} --stability dev --no-interaction'

Say I want to put this on jenkins, I would have to do

drupal chain --file=/pathtofile/chain-site-new.yml --parameter="profile:profile_name" --parameter="directory:/somedir" --parameter="version:8.1"

With this prototype, I can skip the --file

Another possibility is to have a chain calling another chain.

Chain calling another chain

chain-test-child.yml

commands:
# This chain shows the variables passed either via placeholders or interactive mode
  - command: exec
    arguments:
      bin: 'echo "This is a test: Project:%{{project|foo}} Directory:%{{directory|bar}}"'

Calling this chain:

drupal chain:test:child
The interactive mode will ask you the values for project and directory, with default values 'foo' and 'bar' respectively.

Enter placeholder value for project [foo]:
Enter placeholder value for directory [bar]:

The output will be:
This is a test: Project:foo Directory:bar

Main chain calling a child chain

chain-test-main.yml

commands:
# Example of a chain calling another chain with placeholders
# In interactive mode, it will ask you to provide the project, default value is 'main-project'
  - command: chain:test:child
    options:
      placeholder:
        - 'project:%{{project|main-project}}'
        - 'directory:main-dir'

Calling this chain:

drupal chain:test:main
The interactive mode will ask you the values for project, with default values 'main-project'. Directory has a fixed value in this example.

Enter placeholder value for project [main-project]:

The output will be:
This is a test: Project:main-project Directory:main-dir

How to make ChainRegister find your chains

Copy your yml files to any folder
Place the chain.yml in the console folder (same location where config.yml is)

chain.yml

chain:
  name:
    'test:main':
      file: 'pathto/chain-main.yml'
    'test:child':
      file: 'pathto/chain-child.yml'

ps: The name of your chain will be prepended with 'chain:' automatically.

[marcelovani]

I merged the latest changes from master to my branch. The code isn't working now, because Config.php was deleted and I don't know how to point to chain.yml

[jmolivas]

This file is no longer required on this PR

[jmolivas]

can you remove from 123 to 127 those lines got relocated to drupal-console-core

[jmolivas]

can you remove from 111 to 115 the loading commands will not be reading a config file.
I will write the implementation

[marcelovani]

Moved PR to the sponsoring company github account https://github.com/hechoendrupal/DrupalConsole/pull/2961/files