Putting the 'company' back in

As this works better with LSP.

ha-aux-apps.org

@@ -53,7 +53,7 @@ I would like a dedicate perspective to Mastodon, and I would like a leader key s
 
     (use-package major-mode-hydra
       :config
-      (major-mode-hydra-define mastodon-mode nil
+      (major-mode-hydra-define mastodon-mode (:quit-key "q")
         ("Timelines"
          (("u" mastodon-tl-update "update")
           ("F" mastodon-tl-get-federated-timeline "Federated")

ha-config.org

@@ -585,12 +585,42 @@ Each programming environment might need some particular love. For instance:
 #+END_SRC
 
 
+*** Company
+The [[http://company-mode.github.io/][company project]] for completion back-ends work well with LSP.
+
+Do I want it to display whenever there is a pause in the conversation (set =company-minimum-prefix-length= to a large number, or set =company-idle-delay=), or do I want it to only show when I push the =TAB= or other key (see =company-indent-or-complete-common=).
+
+#+BEGIN_SRC emacs-lisp
+  (use-package company
+    :custom
+    (company-minimum-prefix-length 3) ; default
+    (company-idle-delay 0.5)
+    (company-tooltip-align-annotations t)
+    (company-tooltip-limit 9)
+    (company-tooltip-flip-when-above t)
+    (company-show-quick-access 'left)
+
+    :bind (("M-/" . company-complete)
+           :map company-mode-map
+           ("M-/" . company-other-backend))
+
+    :config
+    (add-to-list 'company-backends 'company-yasnippet)
+
+    (set-face-attribute 'company-tooltip nil
+                        :family "Cascadia Code NF"
+                        :height 120)
+
+    :hook (after-init . global-company-mode))
+#+END_SRC
+
+Another idea, is I can trigger the company with a M-/ but then view /other backends/ by re-hitting that keybinding.
 *** Corfu
 The default completion system either inserts the first option directly in the text (without cycling, so let’s hope it gets it right the first time), or presents choices in another buffer (who wants to hop to it to select an expansion).
 
 After using  [[http://company-mode.github.io/][company]] for my completion back-end, I switched to [[https://github.com/minad/corfu][corfu]] as it works with the variable-spaced font of my org files (also see [[https://takeonrules.com/2022/01/17/switching-from-company-to-corfu-for-emacs-completion/][this essay]] for my initial motivation).
 
-#+begin_src emacs-lisp
+#+begin_src emacs-lisp :tangle no
   (use-package corfu
     :custom
     (corfu-cycle t)
@@ -598,6 +628,7 @@ After using  [[http://company-mode.github.io/][company]] for my completion back-
     :init
     (global-corfu-mode))
 #+end_src
+
 *** Snippets
 Using [[https://github.com/joaotavora/yasnippet][yasnippet]] to expand templates into text:
 
@@ -1036,7 +1067,8 @@ And some shortcut keys from the =general= project:
     "<tab> p" '("new project" . ha-tab-bar-new-project)
     "<tab> n" '("new space" . ha-tab-bar-new)
     "<tab> u" '("update names" . ha-tab-bar-update-names)
-    "<tab> d" '("delete space" . ha-tab-bar-delete))
+    "<tab> d" '("delete space" . ha-tab-bar-delete)
+    "<tab> `" '("recent" . tab-bar-switch-to-recent-tab))
 
   (global-set-key (kbd "s-C-t") 'ha-tab-bar-new)
   (global-set-key (kbd "s-C-[") 'tab-bar-switch-to-prev-tab)
@@ -1070,7 +1102,11 @@ I want to quickly jump, by the number shown on the tab, to that grouping. The fo
           ;; match the tab labels by incrementing it by one ... unless,
           ;; we are at 10, where we use 0 instead:
           (format "<tab> %d" (if (= indx 9) 0 (1+ indx)))
-          `(,name . (lambda () (interactive) (tab-bar-select-tab ,(1+ indx))))))))
+          `(,name . (lambda () (interactive)
+                      "Switch to a tab-bar by number"
+                      (setq ha-tab-bar-previous
+                            (tab-bar-tab-name-current))
+                      (tab-bar-select-tab ,(1+ indx))))))))
 #+END_SRC
 
 Any time I create or delete a new tab, we can call =ha-tab-bar-update-names=:

ha-email.org

@@ -132,7 +132,7 @@ Also, let's do some basic configuration of Emacs' mail system:
 #+end_src
 
 Create a special mail perspective:
-#+begin_src emacs-lisp
+#+begin_src emacs-lisp :tangle no
   (ha-leader "a M" `("mail" . ,(ha-tab-bar-new "mail" #'notmuch)))
 #+end_src
 * Configuration

ha-org-word-processor.org

@@ -27,7 +27,6 @@ A literate programming file for making Org file more readable.
 #+end_src
 * Introduction
 I like having org-mode files look more like a word processor than having it look like programming code. But that is me. The end results:
-
 [[file:screenshots/org-as-word-processor.png]]
 * General Org Settings
 Since I use ellipsis in my writing… to /change/ how org renders a collapsed heading.
@@ -102,7 +101,7 @@ And hook this function to Org:
 The list of things to try:
 
 #+BEGIN_SRC emacs-lisp
-  (setq org-hide-leading-stars nil) ; or t
+  (setq org-hide-leading-stars t) ; or t
 #+END_SRC
 
 ** Markup View

ha-programming-python.org

@@ -136,7 +136,14 @@ Next, after reading David Vujic’s [[https://davidvujic.blogspot.com/2025/03/ar
   # c.InteractiveShellApp.exec_lines = ['%autoreload 2']
 #+END_SRC
 
-** Virtual Environment
+** Isolated Python Environments
+While the Python community (and my work at my company) had difficulty transitioning from Python 2 to 3, I often run into issues needing a particular Python version and modules. After playing around with different approaches, I’m finding:
+  * Docker environments are nicely isolated, but annoying to work from outside the container
+  * The Builtin =venv= is works well for different library modules, but not for different versions
+  * The =pyenv= deals with different Python versions, but is overkill for library isolation
+
+While the [[https://github.com/marcwebbie/auto-virtualenv][auto-virtualenv]] project attempts to resolve this, I’m using the [[file:ha-programming.org::*Virtual Environments with direnv][direnv project]] abstraction for situations where I need project-specific isolation in more than just Python.
+*** Virtual Environments
 Use the built-in module, venv, to create isolated Python environments for specific projects, enabling you to manage dependencies separately.
 
 Create a virtual environment, either in the project’s directory, or in a global spot:
@@ -160,8 +167,8 @@ Now, do what you need to do with this isolation:
 #+BEGIN_SRC sh :tangle no
   pip install -r test-requirements.txt
 #+END_SRC
-** Virtual Environment with new Python Version
+*** Managing Python Versions
-Pyenv is a tool for managing multiple versions of Python on your machine, allowing you to switch between them easily. On a Mac, installed it via Homebrew:
+[[https://github.com/pyenv/pyenv][Pyenv]] is a tool for managing multiple versions of Python on your machine, allowing you to switch between them easily (see [[https://realpython.com/intro-to-pyenv/][this essay]]). On a Mac, installed it via Homebrew:
 
 #+BEGIN_SRC sh
   brew install readline xz
@@ -213,16 +220,55 @@ Also, you need the following in your =~/.config/direnv/direnvrc= file (which I h
     fi
   }
 #+end_src
-** Editing Python Code
+
-Let’s integrate this [[https://github.com/wbolster/evil-text-object-python][Python support for evil-text-object]] project:
+Tell Emacs about [[https://github.com/pythonic-emacs/pyenv-mode][pyenv-mode]]:
-#+begin_src emacs-lisp
+
-  (when (fboundp 'evil-define-text-object)
+#+BEGIN_SRC emacs-lisp
-    (use-package evil-text-object-python
+  (use-package pyenv-mode
-      :hook (python-mode . evil-text-object-python-add-bindings)))
+    :config
-#+end_src
+    (defun setup-pyenv ()
-This allows me to delete a Python “block” using ~dal~.
+      "Pyenv."
-** Docker Environment
+      (setenv "WORKON_HOME" "~/.pyenv/versions")
-Docker really allows you to isolate your project's environment. The downside is that you are using Docker and probably a bloated container. On my work laptop, a Mac, this creates a behemoth virtual machine that immediately spins the fans like a wind tunnel.
+      (pyenv-mode +1)))
+#+END_SRC
+
+Now specify the =pyenv= Python version by calling [[help:pyenv-mode-set][pyenv-mode-set]]:
+
+#+begin_example
+  M-x pyenv-mode-set
+#+end_example
+
+When you run inferior Python processes (like =run-python=), the process will start inside the specified Python installation. You can unset the current version with:
+
+#+begin_example
+  M-x pyenv-mode-unset
+#+end_example
+
+Or, we can do it automatically when we get into a project (if the project has a =.python-version= file):
+
+#+BEGIN_SRC emacs-lisp
+  (use-package pyenv-mode
+    :config
+    (defun project-pyenv-mode-set (&rest _)
+      "Set pyenv version matching project name."
+      (let* ((filename (thread-first
+                         (project-current)
+                         (project-root)
+                         (file-name-concat ".python-version")))
+             (version (when (file-exists-p filename)
+                        (with-temp-buffer
+                          (insert-file-contents filename)
+                          (buffer-string)))))
+        (when version
+          (pyenv-mode-set version)
+          (pyenv-mode-unset))))
+
+    ;; Either set/unset the pyenv version whenever changing tabs:
+    (add-hook 'tab-bar-tab-post-select-functions 'project-pyenv-mode-set))
+#+END_SRC
+
+*** Docker Environment
+Docker allows you to isolate your project's environment. The downside is that you are using Docker and probably a bloated container. On my work laptop, a Mac, this creates a behemoth virtual machine that immediately spins the fans like a wind tunnel.
 
 But, but... think of the dependencies!
 
@@ -236,6 +282,14 @@ Your project's =.envrc= file would contain something like:
 
   container_layout
 #+end_src
+** Editing Python Code
+Let’s integrate this [[https://github.com/wbolster/evil-text-object-python][Python support for evil-text-object]] project:
+#+begin_src emacs-lisp
+  (when (fboundp 'evil-define-text-object)
+    (use-package evil-text-object-python
+      :hook (python-mode . evil-text-object-python-add-bindings)))
+#+end_src
+This allows me to delete a Python “block” using ~dal~.
 ** Unit Tests
 #+begin_src emacs-lisp
   (use-package python-pytest
@@ -267,9 +321,22 @@ The [[https://elpy.readthedocs.io/en/latest/introduction.html][Elpy Project]] ex
 
 #+BEGIN_SRC emacs-lisp
   (use-package elpy
-    :ensure t
     :init
-    (elpy-enable))
+    (advice-add 'python-mode :before 'elpy-enable)
+    :config
+    ;; (elpy-enable)
+    (setq elpy-test-runner 'elpy-test-pytest-runner)
+    (setq elpy-formatter 'black)
+    (setq elpy-shell-echo-input nil)
+    (setq elpy-modules (delq 'elpy-module-flymake elpy-modules)))
+#+END_SRC
+
+After we’ve loaded the Company section, we can add jedi to the list of completions:
+
+#+BEGIN_SRC emacs-lisp
+  (use-package elpy
+    :after company-mode
+    :config (add-to-list 'company-backends 'company-jedi))
 #+END_SRC
 
 Let’s expand our =major-mode-hydra= with some extras:

ha-programming.org

@@ -670,26 +670,26 @@ Emacs has two LSP projects, and while I have used [[LSP Mode]], but since I don
 
     :config
     (global-set-key (kbd "s-m") 'lsp)
-    (ha-local-leader :keymaps 'prog-mode-map
+    ;; (ha-local-leader :keymaps 'prog-mode-map
-      "w"  '(:ignore t :which-key "lsp")
+    ;;   "w"  '(:ignore t :which-key "lsp")
-      "l"  '(:ignore t :which-key "lsp")
+    ;;   "l"  '(:ignore t :which-key "lsp")
-      "ws" '("start" . lsp))
+    ;;   "ws" '("start" . lsp))
 
-    ;; The following leader-like keys, are only available when I have
+    ;; ;; The following leader-like keys, are only available when I have
-    ;; started LSP, and is an alternate to Command-m:
+    ;; ;; started LSP, and is an alternate to Command-m:
-    :general
+    ;; :general
-    (:states 'normal :keymaps 'lsp-mode-map
+    ;; (:states 'normal :keymaps 'lsp-mode-map
-             ", w r" '("restart"  . lsp-reconnect)
+    ;;          ", w r" '("restart"  . lsp-reconnect)
-             ", w b" '("events"   . lsp-events-buffer)
+    ;;          ", w b" '("events"   . lsp-events-buffer)
-             ", w e" '("errors"   . lsp-stderr-buffer)
+    ;;          ", w e" '("errors"   . lsp-stderr-buffer)
-             ", w q" '("quit"     . lsp-shutdown)
+    ;;          ", w q" '("quit"     . lsp-shutdown)
-             ", w Q" '("quit all" . lsp-shutdown-all)
+    ;;          ", w Q" '("quit all" . lsp-shutdown-all)
 
-             ", l r" '("rename"   . lsp-rename)
+    ;;          ", l r" '("rename"   . lsp-rename)
-             ", l f" '("format"   . lsp-format)
+    ;;          ", l f" '("format"   . lsp-format)
-             ", l a" '("actions"  . lsp-code-actions)
+    ;;          ", l a" '("actions"  . lsp-code-actions)
-             ", l i" '("imports"  . lsp-code-action-organize-imports)
+    ;;          ", l i" '("imports"  . lsp-code-action-organize-imports)
-             ", l d" '("doc"      . lsp-lookup-documentation))
+    ;;          ", l d" '("doc"      . lsp-lookup-documentation))
 
    :hook ((lsp-mode . lsp-enable-which-key-integration)))
 #+end_src

laptop_keyboard.kbd

@@ -1,34 +1,46 @@
+;; -*- mode:lisp; -*-
 ;; Here is a keyboard setup for an Apple Macbook keyboard to work with
 ;; "home row mods" where holding down keys on the home row can act like a
 ;; modifier, so holding down `d` and hitting `p` results in `P` being
 ;; entered.
+;;
+;; Installation:
+;;     brew install kanata
+;;
+;; Running:
+;;     sudo kanata --cfg ~/src/hamacs/laptop_keyboard.kbd
 
 (deflocalkeys-macos
-  ì 13
+  ì 13)
-)
 
-;; Also includes a symbol layer accessible while holding down either
+;; While this works on both my Macbook running MacOS and Linux, I have
-;; the `h' or `g' keys.
+;; yet to figure out how to get the same file to work in both, as I
+;; have to modify the code in the `defcfg' section below.
 
 (defcfg
- macos-dev-names-include ("Apple Internal Keyboard / Trackpad")
+    ;; linux-dev-names-include ("Apple Internal Keyboard / Trackpad")
-  ;; linux-dev-names-include (
+    macos-dev-names-include ("Apple Internal Keyboard / Trackpad"))
-  ;;   "Microsoft Surface 045E:091C Keyboard"
+
-  ;; )
+;; What keys are we re-defining? This is my Macbook Pro layouts, as
-)
+;; both laptops are this hardware.
+;;
+;; Notice lmet/rmet = Apple's Command Key
+;;        lalt/ralt = Option, or a real meta key
+
 (defsrc
   esc  f1   f2   f3   f4   f5   f6   f7   f8   f9   f10  f11  f12
   `    1    2    3    4    5    6    7    8    9    0    -    =    bspc
   tab  q    w    e    r    t    y    u    i    o    p    [    ]    \
   caps a    s    d    f    g    h    j    k    l    ;    '    ret
   lsft z    x    c    v    b    n    m    ,    .    /    rsft
-  fn lctl lalt lmet      spc           rmet ralt
+  fn   lctl lalt lmet      spc            rmet ralt)
-)
 
 (defvar
   tap-time 200
-  hold-time 200
+  hold-time 200)
-)
+
+;; Also includes a symbol layer accessible while holding down either
+;; the `h' or `g' keys.
 
 (defalias
   a (tap-hold $tap-time $hold-time a lmet)
@@ -41,17 +53,22 @@
   k (tap-hold $tap-time $hold-time k rsft)
   l (tap-hold $tap-time $hold-time l rctl)
   ; (tap-hold $tap-time $hold-time ; rmet)
-  caps (tap-hold $tap-time $hold-time esc lctl)
+  caps (tap-hold $tap-time $hold-time esc lctl))
-)
+
+;; The base layer is fairly normal, except we all out aliases defined
+;; above, os the @a is both a `tap-hold' feature as well as a regular
+;; `a` key:
 
 (deflayer base
-  esc  F1 F2 f3   f4   f5   f6   f7   f8   f9    f10   f11   f12
+  esc   f1   f2   f3   f4   f5   f6   f7   f8   f9   f10  f11  f12
   `     1    2    3    4    5    6    7    8    9    0    -    =    bspc
   tab   q    w    e    r    t    y    u    i    o    p    [    ]    \
   @caps @a   @s   @d   @f   @g   @h   @j   @k   @l   @;   '    ret
   lsft  z    x    c    v    b    n    m    ,    .    /    rsft
-  @h lctl lalt lmet    spc           rmet ralt
+  @h    lctl lalt lmet    spc           rmet ralt)
-)
+
+;; The other layer is our `symbols' which allows me to hold down the
+;; `g' key to invoke a magical VI-like h/j/k/l arrow keys:
 
 (deflayer SYMBOLS
   esc  🔅   🔆   F3   F4  f5    f16   ◀◀    ▶⏸   ▶▶     🔇    🔉    🔊
@@ -59,5 +76,4 @@
   _    S-1  S-2  {    }    S-\  F16   F17   F18   F19   pgup  _ _ _
   _    S-3  S-4  S-9  S-0  `    left  down  up    right pgdn  _ _
   _    S-5  S-6  [    ]    S-`  F11   F12   F13   F14   F15   _
-  _  _  _    _          _        _    _
+  _    _  _    _          _        _    _)
-)

zshell.org

@@ -416,6 +416,16 @@ Favorite feature is the [[https://iterm2.com/documentation-status-bar.html][Stat
 Currently, I show the currently defined Kube namespace.
 
 #+BEGIN_SRC zsh
+  function iterm2_python_version() {
+      echo $(pyenv version-name):$(echo "$VIRTUAL_ENV" | sed "
+                      s|^$HOME|~|
+                      s|^~/src/wpc-gerrit.inday.io/||
+                      s|^~/work/||
+                      s|^~/.venv/||
+                      s|/\.venv$||
+                      s|\.venv$||")
+  }
+
   function iterm2_print_user_vars() {
       # iterm2_set_user_var kubecontext $($ yq '.users[0].name' ~/.kube/config):$(kubectl config view --minify --output 'jsonpath={..namespace}')
 
@@ -424,7 +434,7 @@ Currently, I show the currently defined Kube namespace.
       # Faster version:
       iterm2_set_user_var kubecontext $(awk '/^current-context:/{print $2;exit;}' <~/.kube/config)
 
-    iterm2_set_user_var pycontext "$(pyenv version-name):$(echo $VIRTUAL_ENV | sed 's/.*.venv\///')"
+      iterm2_set_user_var pycontext $(iterm2_python_version)
   }
 #+END_SRC