Running various CLI in Docker within Emacs buffer
The best way to install it is from MELPA
M-x package-install [RET] docker-cli [RET]
Manually package can be installed by putting docker-cli.el somewhere
on the load path and requiring it in init.el
(require 'docker-cli)
If you need to add new commands to execute in Docker containers just
add new element to the docker-cli-commands-alist list. For details
view documentation for the list. In short you will have to define
command that will be executed. If command needs additional parameters
they can be composed through :arguments-compose-func part of list
element and regular expression for comint prompt handling (view comint
mode for details).
(defun railsc-arguments () '("exec" "rails" "c"))
;; This part was taken from inf-ruby
(defconst inf-ruby-prompt-format
(concat
(mapconcat
#'identity
'("\\(^%s> *\\)" ; Simple
"\\(^(rdb:1) *\\)" ; Debugger
"\\(^(byebug) *\\)" ; byebug
"\\(^\\(irb([^)]+)" ; IRB default
"\\([[0-9]+] \\)?[Pp]ry ?([^)]+)" ; Pry
"\\(jruby-\\|JRUBY-\\)?[1-9]\\.[0-9]\\(\\.[0-9]+\\)*\\(-?p?[0-9]+\\)?" ; RVM
"^rbx-head\\)") ; RVM continued
"\\|")
;; Statement and nesting counters, common to the last four.
" ?[0-9:]* ?%s *\\)")
"Format string for the prompt regexp pattern.
Two placeholders: first char in the Simple prompt, and the last
graphical char in all other prompts.")
(setq docker-cli-commands-alist
(append docker-cli-commands-alist '((rails-console
:command "./bin/rails"
:arguments-compose-func railsc-arguments
:prompt-regexp (format inf-ruby-prompt-format "[?>]" "[\]>*\"'/`]")
:prompt-cont-regexp (format inf-ruby-prompt-format "[?>]" "[\]>*\"'/`]")))))