dotfiles/emacs/.emacs.d/config/init-aws.el

;; -*- lexical-binding: t; -*-

;; Manage AWS profiles
(defvar aws-profiles '("default")
  "AWS profile names")
(defvar aws-current-profile nil
  "Currently active AWS profile")

(defun aws-local-profile ()
  (make-local-variable 'aws-current-profile))

(add-hook 'eshell-mode-hook #'aws-local-profile)
(add-hook 'vterm-mode-hook #'aws-local-profile)
(add-hook 'term-mode-hook #'aws-local-profile)

(add-to-list 'aws-profiles "personal")
(add-to-list 'aws-profiles "lola-cde")
(add-to-list 'aws-profiles "lola-gbt")

(defun aws-switch-profile (profile)
  (interactive (list (completing-read "Profile: " aws-profiles)))
  (setenv "AWS_PROFILE" profile)
  (when (eq major-mode 'vterm-mode)
    (vterm-send-C-e)
    (vterm-send-C-u)
    (vterm-send-string (format "export AWS_PROFILE=%s\n" profile)))
  (setq aws-current-profile profile))

(add-hook 'emacs-startup-hook
          (lambda ()
            (aws-switch-profile "default")))

;; A command to MFA to AWS
(defun aws-mfa (mfa-token)
  (interactive (list
                (let ((prompt (if aws-current-profile
                                  (format "MFA code for %s: " aws-current-profile)
                                "MFA code: ")))
                  (read-from-minibuffer prompt))))
  (let ((proc (start-process "aws-mfa"
                             "*aws-mfa*"
                             "aws-mfa"
                             "--force")))
    (set-process-sentinel
     proc
     (make-success-err-msg-sentinel "*aws-mfa*"
                                    "AWS MFA succeeded"
                                    "AWS MFA failed, check *aws-mfa* buffer for details"))
    (process-send-string proc (concat mfa-token "\n"))))

;; A dired interface to S3
(use-package s3ed
  :commands (s3ed-find-file
             s3ed-save-file))

(provide 'init-aws)