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timonier-mode.el
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timonier-mode.el
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;;; timonier-mode.el --- Mode for timonier
;; Copyright (C) 2016 Nicolas Lamirault <nicolas.lamirault@gmail.com>
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;; Commentary:
;;; Code:
(require 'widget)
(require 'cl-lib)
(require 'all-the-icons)
(require 'f)
(require 'hydra)
(require 's)
(require 'timonier-custom)
(require 'timonier-io)
(require 'timonier-k8s)
;; ------------------
;; Customization
;; ------------------
(defgroup timonier-k8s-mode nil
"Customization group for `timonier-k8s-mode'."
:prefix "timonier-k8s-mode-"
:tag "Timonier Kubernetes Mode"
:group 'timonier)
(defcustom timonier-k8s-mode-buffer "*timonier-k8s*"
"The Timonier kubernetes buffer name."
:type 'string
:group 'timonier-k8s-mode)
(defcustom timonier-k8s-description-mode-buffer "*timonier-k8s-desc*"
"The Timonier kubernetes entity description buffer name."
:type 'string
:group 'timonier-k8s-mode)
(defcustom timonier-k8s-keymap-prefix "C-c C-k"
"Prefix for `timonier-k8s-mode'."
:group 'timonier-k8s-mode)
(defcustom timonier-k8s-mode-line
" Timonier/Kubernetes "
"Mode line lighter for Timonier."
:group 'timonier-k8s-mode
:type 'sexp
:risky t)
;; ------------------
;; Faces
;; ------------------
(defgroup timonier-k8s-mode-faces '((timonier-k8s-mode custom-group))
"Customization group for the faces of `timonier-k8s-mode'."
:prefix "timonier-k8s-mode-"
:tag "Timonier Kubernetes mode faces"
:group 'timonier-k8s-mode)
(defface timonier-k8s-mode-title-face
'((t :inherit font-lock-builtin-face))
"Face used for buffer's title."
:group 'timonier-k8s-mode)
(defface timonier-k8s-mode-key-face
'((t :weight bold :inherit font-lock-keyword-face))
"Face used in the Timonier buffer."
:group 'timonier-k8s-mode-faces)
(defface timonier-k8s-mode-pod-face
'((t :weight bold :inherit font-lock-warning-name-face))
"Face used in the Timonier buffer."
:group 'timonier-k8s-mode-faces)
(defface timonier-k8s-mode-service-face
'((t :weight bold :inherit font-lock-warning-name-face))
"Face used in the Timonier buffer."
:group 'timonier-k8s-mode-faces)
(defface timonier-k8s-mode-node-face
'((t :weight bold :inherit font-lock-warning-name-face))
"Face used in the Timonier buffer."
:group 'timonier-k8s-mode-faces)
(defface timonier-k8s-mode-namespace-face
'((t :inherit font-lock-doc-face))
"Face used in the Timonier buffer"
:group 'timonier-k8s-mode-faces)
(defface timonier-k8s-mode-pod-status-face
'((t :inherit font-lock-string-face))
"Face used in the Timonier buffer"
:group 'timonier-k8s-mode-faces)
(defface timonier-k8s-mode-namespace-status-face
'((t :inherit font-lock-string-face))
"Face used in the Timonier buffer"
:group 'timonier-k8s-mode-faces)
(defvar timonier-k8s-mode-padding 2
"The number of columns used for padding on the left side of the buffer.")
;; ------------------
;; Modes
;; ------------------
(defmacro timonier-k8s-mode-with-widget (title &rest body)
`(progn
(set-buffer (get-buffer-create timonier-k8s-mode-buffer))
(switch-to-buffer timonier-k8s-mode-buffer)
(kill-all-local-variables)
(let ((inhibit-read-only t))
(erase-buffer)
(remove-overlays)
(widget-insert (format "\n[%s]\n\n" ,title))
,@body)
(use-local-map widget-keymap)
(widget-setup)
(timonier-k8s-mode)
(widget-minor-mode)
(goto-char 0)))
(defmacro timonier-k8s-mode-description-with-widget (title &rest body)
`(progn
(set-buffer (get-buffer-create timonier-k8s-description-mode-buffer))
(switch-to-buffer timonier-k8s-description-mode-buffer)
(kill-all-local-variables)
(let ((inhibit-read-only t))
(erase-buffer)
(remove-overlays)
(widget-insert (format "\n[%s]\n\n" ,title))
,@body)
(use-local-map widget-keymap)
(widget-setup)
(timonier-k8s-description-mode)
(widget-minor-mode)
(goto-char 0)))
(defvar timonier-k8s-mode-hook nil)
(defun timonier-k8s-mode-quit ()
"Timonier exit."
(interactive)
(kill-buffer timonier-k8s-mode-buffer))
(defun timonier--k8s-mode-current-entity (type)
"Return the current Kubernetes entities at point using `TYPE'."
(get-text-property (point) type))
(defun timonier--k8s-mode-next-entity (type)
"Move point to the next Kubernetes entity specified by `TYPE'."
(interactive)
(let ((pos (next-single-property-change (point) type)))
(if pos
(progn
(goto-char pos)
(unless (timonier--k8s-mode-current-entity type)
(let ((pos (next-single-property-change pos type)))
(when pos
(goto-char pos)))))
(message "No current position: %s" type))))
(defun timonier--k8s-mode-prev-entity (type)
"Move point to the previous Kubernetes entity specified by `TYPE'."
(interactive)
(let ((pos (previous-single-property-change (point) type)))
(if pos
(progn
(goto-char pos)
(unless (timonier--k8s-mode-current-entity type)
(let ((pos (previous-single-property-change pos type)))
(when pos
(goto-char pos)))))
(message "No current position: %s" type))))
(defun timonier-k8s-mode-next-pod ()
"Move point to the next Kubernetes pod."
(interactive)
(timonier--k8s-mode-next-entity :k8s-pod))
(defun timonier-k8s-mode-prev-pod ()
"Move point to the previous Kubernetes pod."
(interactive)
(timonier--k8s-mode-prev-entity :k8s-pod))
(defun timonier-k8s-mode-next-service ()
"Move point to the next Kubernetes service."
(interactive)
(timonier--k8s-mode-next-entity :k8s-service))
(defun timonier-k8s-mode-prev-service ()
"Move point to the previous Kubernetes service."
(interactive)
(timonier--k8s-mode-prev-entity :k8s-service))
(defun timonier-k8s-mode-next-node ()
"Move point to the next Kubernetes node."
(interactive)
(timonier--k8s-mode-next-entity :k8s-node))
(defun timonier-k8s-mode-prev-node ()
"Move point to the previous Kubernetes node."
(interactive)
(timonier--k8s-mode-prev-entity :k8s-node))
(defun timonier-k8s-mode-describe-node ()
(interactive)
(let ((node (timonier--k8s-mode-current-entity :k8s-node)))
(if node
(progn
(let ((node-data (timonier--k8s-extract-node-description node)))
(timonier-k8s-mode-description-with-widget
(propertize "Kubernetes / Nodes"
'face 'timonier-k8s-mode-title-face)
(widget-insert
(format "\n%s:"
(propertize "Details"
'face 'timonier-k8s-mode-title-face))
(format "\n%s: %s"
(propertize "Name"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'name)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Labels"
'face 'timonier-k8s-mode-key-face)
(propertize
(s-join " " (plist-get node-data 'labels))))
(format "\n%s: %s"
(propertize "External ID"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'external-id)
'face 'timonier-k8s-mode-pod-face))
(format "\n\n%s:"
(propertize "System info"
'face 'timonier-k8s-mode-title-face))
(format "\n%s: %s"
(propertize "System UUID"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'system-uuid)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Boot ID"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'boot-id)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Kernel Version"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'kernel-version)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "OS Image"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'os-image)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Container Runtime Version"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'container-runtime)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Kubelet Version"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'kubelet-version)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Kube-Proxy Version"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'kubeproxy-version)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Operation system"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'os)
'face 'timonier-k8s-mode-pod-face))
(format "\n%s: %s"
(propertize "Architecture"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get node-data 'architecture)
'face 'timonier-k8s-mode-pod-face))
))))
(message "No node available."))))
(defun timonier-k8s-mode-describe-pod ()
(interactive)
(let ((pod (timonier--k8s-mode-current-entity :k8s-pod)))
(if pod
(message "Pod %s" pod)
(message "No pod available."))))
(defun timonier-k8s-mode-describe-service ()
(interactive)
(let ((service (timonier--k8s-mode-current-entity :k8s-service)))
(if service
(message "%s" service)
(message "No service available."))))
(defhydra timonier-k8s-hydra (:color blue :hint none)
"
[ Timonier / Kubernetes ]
^Node^ ^Service^ ^Pod^
--------------------------------------------------------------------------------------
_i_: go to next node _k_: go to next service _g_: go to next pod
_j_: go to previous node _l_: go to previous service _h_: go to previous pod
_N_: describe current node _S_: describe current service _P_: describe current pod
_q_: quit
"
("g" timonier-k8s-mode-next-pod)
("h" timonier-k8s-mode-prev-pod)
("P" timonier-k8s-mode-describe-pod)
("k" timonier-k8s-mode-next-service)
("l" timonier-k8s-mode-prev-service)
("S" timonier-k8s-mode-describe-service)
("i" timonier-k8s-mode-next-node)
("j" timonier-k8s-mode-prev-node)
("N" timonier-k8s-mode-describe-node)
("q" nil "quit" :hint t :color red))
(defvar timonier-k8s-mode-map
(let ((map (make-keymap)))
(define-key map (kbd timonier-k8s-keymap-prefix) 'timonier-k8s-hydra/body)
map))
(define-derived-mode timonier-k8s-mode tabulated-list-mode
"Timonier Kubernetes mode"
"Major mode for Timonier."
:group 'timonier
)
(defun timonier-k8s-description-mode-quit ()
"Quit the Kubernetes description mode."
(interactive)
(kill-buffer timonier-k8s-description-mode-buffer))
(defvar timonier-k8s-description-mode-map
(let ((map (make-keymap)))
(define-key map (kbd "q") 'timonier-k8s-description-mode-quit)
map))
(define-derived-mode timonier-k8s-description-mode tabulated-list-mode
"Timonier Kubernetes mode"
"Major mode for Timonier."
:group 'timonier
)
(defun timonier--k8s-mode-render-pod (pod)
"Render a Kubernetes `POD' to the Timonier buffer."
;; (message "Pod: %s" pod)
(let* ((pod-data (timonier--k8s-extract-pod-informations pod)))
(insert (all-the-icons-octicon "package"))
(let ((start (point)))
(widget-insert
(format " %s %s"
(propertize (plist-get pod-data 'name)
'face 'timonier-k8s-mode-pod-face)
(propertize (plist-get pod-data 'status)
'face 'timonier-k8s-mode-pod-status-face)))
(put-text-property start (point) :k8s-pod pod)
(widget-insert
(format "\n %s: %s\n\n"
(propertize "Namespace"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get pod-data 'namespace)
'face 'timonier-k8s-mode-namespace-face))))))
(defun timonier--k8s-mode-render-pods (pods)
"Render Kubernetes `PODS'."
(widget-insert (format "\n== PODS ==\n\n"))
(dotimes (i (length pods))
(let ((pod (elt pods i)))
(timonier--k8s-mode-render-pod pod)))
(widget-insert "\n"))
(defun timonier--k8s-mode-render-service (service)
"Render a Kubernetes `SERVICE' to the Timonier buffer."
(let* ((service-data (timonier--k8s-extract-service-informations service)))
(insert (all-the-icons-octicon "link-external"))
(let ((start (point)))
(widget-insert
(format " %s"
(propertize (plist-get service-data 'name)
'face 'timonier-k8s-mode-service-face)))
(put-text-property start (point) :k8s-service service)
(widget-insert
(format "\n %s: %s"
(propertize "Namespace"
'face 'timonier-k8s-mode-key-face)
(propertize (plist-get service-data 'namespace)
'face 'timonier-k8s-mode-namespace-face))
(format "\n %s: %s"
(propertize "ClusterIP"
'face 'timonier-k8s-mode-key-face)
(plist-get service-data 'cluster-ip))
(format "\n %s: %s"
(propertize "Endpoints"
'face 'timonier-k8s-mode-key-face)
(propertize
(s-join ":" (mapcar (lambda (elt)
(format "%s" elt))
(plist-get service-data 'ports)))))
(format "\n %s: %s\n\n"
(propertize "Labels"
'face 'timonier-k8s-mode-key-face)
(propertize
(s-join " " (plist-get service-data 'labels))))))))
(defun timonier--k8s-mode-render-services (services)
"Render Kubernetes `SERVICES'."
(widget-insert (format "\n== SERVICES ==\n\n"))
(dotimes (i (length services))
(let ((service (elt services i)))
(timonier--k8s-mode-render-service service)))
(widget-insert "\n"))
(defun timonier--k8s-mode-render-node (node)
"Render a Kubernetes `NODE' to the Timonier buffer."
(let* ((node-data (timonier--k8s-extract-node-informations node)))
(insert (all-the-icons-octicon "server"))
(let ((start (point)))
(widget-insert
(format " %s %s"
(propertize (plist-get node-data 'name)
'face 'timonier-k8s-mode-service-face)
(propertize (plist-get node-data 'creation)
'face 'timonier-k8s-mode-namespace-face)))
(put-text-property start (point) :k8s-node node)
(widget-insert
(format "\n %s: %s\n\n"
(propertize "Labels"
'face 'timonier-k8s-mode-key-face)
(propertize
(s-join " " (plist-get node-data 'labels))))))))
(defun timonier--k8s-mode-render-nodes (nodes)
"Render Kubernetes `NODES'."
(widget-insert (format "\n== NODES ==\n\n"))
(dotimes (i (length nodes))
(let ((node (elt nodes i)))
(timonier--k8s-mode-render-node node)))
(widget-insert "\n"))
(defun timonier--k8s-mode-render-namespace (namespace)
"Render a Kubernetes `NAMESPACE' to the Timonier buffer."
(let* ((namespace-data (timonier--k8s-extract-namespace-informations namespace)))
(insert (all-the-icons-octicon "organization"))
(let ((start (point)))
(widget-insert
(format " %s %s\n"
(propertize (plist-get namespace-data 'name)
'face 'timonier-k8s-mode-pod-face)
(propertize (plist-get namespace-data 'status)
'face 'timonier-k8s-mode-namespace-status-face)))
(put-text-property start (point) :k8s-namespace namespace))))
(defun timonier--k8s-mode-render-namespaces (namespaces)
"Render Kubernetes `NAMESPACES'."
(widget-insert (format "\n== NAMESPACES ==\n\n"))
(dotimes (i (length namespaces))
(let ((namespace (elt namespaces i)))
(timonier--k8s-mode-render-namespace namespace)))
(widget-insert "\n"))
;; ------------------
;; API
;; ------------------
(defvar timonier-k8s-mode-history nil)
;;;###autoload
(defun timonier-k8s ()
"Display informations about the Kubernetes cluster."
(interactive)
(timonier--with-k8s
(timonier-k8s-mode-with-widget
(propertize "Kubernetes"
'face 'timonier-k8s-mode-title-face)
(let ((namespaces (timonier--assoc-cdr 'items (timonier--k8s-get-namespaces)))
(nodes (timonier--assoc-cdr 'items (timonier--k8s-get-nodes)))
(services (timonier--assoc-cdr 'items (timonier--k8s-get-services)))
(pods (timonier--assoc-cdr 'items (timonier--k8s-get-pods))))
(timonier--k8s-mode-render-namespaces namespaces)
(timonier--k8s-mode-render-nodes nodes)
(timonier--k8s-mode-render-services services)
(timonier--k8s-mode-render-pods pods)
))))
(provide 'timonier-mode)
;;; timonier-mode.el ends here