Add eshell configuration
This commit is contained in:
282
init.el
282
init.el
@ -541,33 +541,25 @@ visual states."
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;; project.el
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(use-package project
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:bind (("C-c v" . my/project-vterm-or-default)
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:bind (("C-c v" . my/project-eshell-or-default)
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:map project-prefix-map
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("s" . my/project-vterm)
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("s" . my/project-eshell)
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("u" . my/project-run))
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:init
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(defvar my/project-vterm-hash-table (make-hash-table :test 'equal)
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"Hash table that maps project root dirs to vterm buffers.")
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(defun my/project-vterm (prompt)
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"Switch to or create a vterm buffer in the current projects root."
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(interactive (list t))
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(defvar eshell-buffer-name)
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(defun my/project-eshell (prompt &optional arg)
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"Switch to or create an eshell buffer in the current projects root."
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(interactive (list t current-prefix-arg))
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(if-let ((proj (project-current prompt))
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(default-directory (project-root proj)))
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(if-let ((vterm-buff (gethash default-directory
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my/project-vterm-hash-table))
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((buffer-live-p vterm-buff)))
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(switch-to-buffer vterm-buff)
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(puthash default-directory
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(vterm (concat "*vterm for project " default-directory "*"))
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my/project-vterm-hash-table))))
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(defun my/project-vterm-or-default ()
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"Open a vterm for the current project, otherwise, open a normal vterm."
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(interactive)
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(unless (my/project-vterm nil)
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(if-let ((vterm-buff (gethash nil my/project-vterm-hash-table))
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((buffer-live-p vterm-buff)))
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(switch-to-buffer vterm-buff)
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(puthash nil (vterm vterm-buffer-name) my/project-vterm-hash-table))))
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(default-directory (project-root proj))
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(eshell-buffer-name
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(concat "*eshell for project " default-directory "*")))
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(eshell)))
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(defun my/project-eshell-or-default (&optional arg)
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"Open an eshell for the current project, otherwise, open a normal eshell."
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(interactive "P")
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(unless (my/project-eshell nil arg)
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(eshell arg)))
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(defvar my/project-run-command nil
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"Command to run with `my/project-run'.")
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(put 'my/project-run-command 'safe-local-variable (lambda (val)
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@ -676,7 +668,30 @@ COMMAND and COMINT are like `compile'."
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;; vterm
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(use-package vterm
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:hook (vterm-mode . with-editor-export-editor))
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:hook (vterm-mode . with-editor-export-editor)
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:init
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(defvar my/project-vterm-hash-table (make-hash-table :test 'equal)
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"Hash table that maps project root dirs to vterm buffers.")
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(defun my/project-vterm (prompt)
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"Switch to or create a vterm buffer in the current projects root."
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(interactive (list t))
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(if-let ((proj (project-current prompt))
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(default-directory (project-root proj)))
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(if-let ((vterm-buff (gethash default-directory
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my/project-vterm-hash-table))
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((buffer-live-p vterm-buff)))
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(switch-to-buffer vterm-buff)
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(puthash default-directory
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(vterm (concat "*vterm for project " default-directory "*"))
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my/project-vterm-hash-table))))
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(defun my/project-vterm-or-default ()
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"Open a vterm for the current project, otherwise, open a normal vterm."
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(interactive)
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(unless (my/project-vterm nil)
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(if-let ((vterm-buff (gethash nil my/project-vterm-hash-table))
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((buffer-live-p vterm-buff)))
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(switch-to-buffer vterm-buff)
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(puthash nil (vterm vterm-buffer-name) my/project-vterm-hash-table)))))
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;; eat (mostly for eshell purposes)
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(use-package eat)
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@ -685,53 +700,180 @@ COMMAND and COMINT are like `compile'."
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(use-package eshell
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:ensure nil
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:defer nil
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:hook ((eshell-mode . my/-eshell-local-init-alias-hook)
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(eshell-mode . my/eshell-update-aliases)
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(eshell-load . eat-eshell-visual-command-mode)
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(eshell-load . eat-eshell-mode))
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:hook ((eshell-load . eat-eshell-visual-command-mode)
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(eshell-load . eat-eshell-mode)
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(eshell-mode . my/-eshell-mode-setup))
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:init
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(defun my/-eshell-mode-setup ()
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"Setup function run from `eshell-mode-hook'"
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(setq-local corfu-auto nil))
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(setq-default eshell-command-aliases-list
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'(("clear" "clear t" 0 7 (escaped t))))
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(defvar my/eshell-aliases
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'(("ls" . "eza --git -F")
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("la" . "ls -a"))
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"Aliases for eshell that work better than the default.")
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(defun my/-eshell-resolve-alias (name)
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"Recursively resolve an alias, NAME, from `my/eshell-aliases'."
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(if-let ((entry (assoc name my/eshell-aliases))
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(def (split-string-and-unquote (cdr entry))))
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(if-let (sub-def (my/-eshell-resolve-alias (car def)))
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(append sub-def (cdr def))
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def)))
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(defun my/eshell-update-aliases ()
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"Update aliases in `my/eshell-aliases'."
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(interactive)
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(dolist (entry my/eshell-aliases)
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(when-let ((sym (intern (concat "eshell/" (car entry))))
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(def (my/-eshell-resolve-alias (car entry))))
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(defalias sym
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#'(lambda (&rest args)
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(eshell-flush -1)
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(throw 'eshell-external
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(eshell-external-command (car def)
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(append (cdr def) args)))
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(eshell-flush))
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(concat "Eshell alias for \"" (s-join " " def) "\"")))))
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(defun my/-eshell-local-init-alias-hook ()
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"Run from `eshell-mode-hook' to initialize aliases."
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(dolist (entry my/eshell-aliases)
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(add-to-list 'eshell-complex-commands (car entry))))
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(defun my/-eshell-lookup-my-alias-first (oldfun name)
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"Advice around `eshell-lookup-alias' to also lookup aliases from `my/eshell-aliases'."
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(if-let (def (my/-eshell-resolve-alias name))
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(list name (s-join " " def))
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(funcall oldfun name)))
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(advice-add 'eshell-lookup-alias :around #'my/-eshell-lookup-my-alias-first)
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(defun my/-eshell-ignore-alias-file (oldfun)
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"Ignore aliases in `eshell-aliases-file'"
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(let ((eshell-command-aliases-list nil))
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(funcall oldfun)))
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(advice-add 'eshell-alias-initialize :around #'my/-eshell-ignore-alias-file))
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'(("clear" "clear t")
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("e" "find-file $1")
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("n" "find-file $1")
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("emacs" "find-file $1")
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("nvim" "find-file $1")
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("ls" "eza --git -F $*")
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("la" "ls -a $*")
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("l" "ls -l $*")
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("ll" "la -l $*")
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("gt" "git status $*")
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("gp" "git push $*")
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("gu" "git pull $*")
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("gf" "git fetch $*")
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("ga" "git add $*")
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("gcm" "git commit -m ${string-join $* \" \"}")))
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(defun eshell/bm (&optional name)
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"Change to directory of bookmark NAME.
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If no name is given, list all bookmarks instead."
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(if name
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(eshell/cd (bookmark-get-filename name))
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(eshell-print (string-join (bookmark-all-names) " "))))
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(defun my/-replace-home-with-tilda (path)
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(let ((home (getenv "HOME")))
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(if (equal home path)
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"~"
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(setq home (file-name-as-directory home))
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(if (string-prefix-p home path)
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(concat "~/" (seq-subseq path (length home)))
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path))))
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(defun my/-eshell-prompt-cut-path (num path)
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"Cut PATH down to NUM components."
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(let ((parts (string-split path "/" t nil)))
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(concat
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(when (and (file-name-absolute-p path)
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(not (equal "~" (car parts)))
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(<= (length parts) num))
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"/")
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(string-join (last parts num) "/"))))
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(defun my/-eshell-prompt-get-dir ()
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"Get dir for `my/-eshell-prompt-function'"
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(my/-eshell-prompt-cut-path
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3 (if-let ((worktree (car-safe (car-safe (magit-list-worktrees))))
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(parent (file-name-parent-directory worktree)))
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(file-relative-name default-directory parent)
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(my/-replace-home-with-tilda default-directory))))
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(defun my/-eshell-prompt-status-char-for-branch (branch remote)
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"Get the status char representing the relation between BRANCH and REMOTE."
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(let ((lines (process-lines vc-git-program
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"rev-list"
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"--left-right"
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(concat branch "..." remote)))
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(to-remote nil)
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(to-local nil))
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(dolist (line lines)
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(if-let (((not (string-empty-p line)))
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(dir-char (aref line 0)))
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(if (= dir-char ?<)
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(setq to-local t)
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(setq to-remote t))))
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(cond
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((and to-remote to-local) ?)
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(to-remote ?)
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(to-local ?))))
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(defun my/-eshell-prompt-current-branch-status ()
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"Get the status char for the current branch and its remote."
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(let ((refs (process-lines vc-git-program
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"for-each-ref"
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"--format=%(HEAD)%00%(refname:short)%00%(upstream:short)"
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"refs/heads")))
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(catch 'break
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(dolist (ref refs)
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(if-let ((split-ref (split-string ref "\0" nil nil))
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((equal (car split-ref) "*")))
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(throw 'break (my/-eshell-prompt-status-char-for-branch
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(cadr split-ref)
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(caddr split-ref))))))))
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(defun my/-eshell-prompt-git-state-chars ()
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"Get chars, like + and ✘ for `my/-eshell-prompt-function'."
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(let ((lines (process-lines vc-git-program "status" "--porcelain=v1"))
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(branch-status (my/-eshell-prompt-current-branch-status))
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(status-arr))
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(dolist (line lines)
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(cl-loop with fields = (string-split line " " t " *")
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with status-str = (car-safe fields)
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for status-char across status-str
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do
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(cond ((or (= status-char ?M) (= status-char ?T))
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(add-to-list 'status-arr ?!))
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((= status-char ??)
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(add-to-list 'status-arr ??))
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((or (= status-char ?A) (= status-char ?C))
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(add-to-list 'status-arr ?+))
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((= status-char ?D)
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(add-to-list 'status-arr ?))
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((= status-char ?R)
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(add-to-list 'status-arr ?»)))))
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(sort status-arr #'<)
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(when branch-status
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(push branch-status status-arr))
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(apply 'string status-arr)))
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(defun my/-eshell-prompt-git-status ()
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"Get git status for `my/-eshell-prompt-function'"
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(let ((branch (car (vc-git-branches)))
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(state (my/-eshell-prompt-git-state-chars)))
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(concat
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(propertize (concat " " branch) 'face '(:foreground "medium purple"))
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(unless (string-empty-p state)
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(propertize (concat " [" state "]") 'face '(:foreground "red"))))))
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(defun my/-eshell-prompt-vc-status ()
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"Get vc status for `my/-eshell-prompt-function'."
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(if-let (backend (vc-responsible-backend default-directory t))
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(if (eq backend 'Git)
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(my/-eshell-prompt-git-status)
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(my/-eshell-prompt-set-face-color
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(concat " " (downcase (symbol-name backend)))
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"purple"))))
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(defvar-local my/-eshell-prompt-last-start-time nil
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"Start time of last eshell command.")
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(defun my/-eshell-prompt-timer-pre-cmd ()
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"Command run before each eshell program to record the time."
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(setq my/-eshell-prompt-last-start-time (current-time)))
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(add-hook 'eshell-pre-command-hook #'my/-eshell-prompt-timer-pre-cmd)
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(defun my/-eshell-prompt-format-span (span)
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"Format SPAN as \"XhXms.\""
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(let* ((hours (/ span 3600))
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(mins (% (/ span 60) 60))
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(secs (% span 60)))
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(concat (unless (= hours 0)
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(format "%dh" hours))
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(unless (= mins 0)
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(format "%dm" mins))
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(format "%ds" secs))))
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(defun my/-eshell-prompt-last-command-time (end-time)
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"Return the prompt component for the time of the last command."
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(if-let ((my/-eshell-prompt-last-start-time)
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(len (time-subtract end-time
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my/-eshell-prompt-last-start-time))
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(float-len (float-time len))
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((< 3 float-len))
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(int-len (round float-len)))
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(concat " time "
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(propertize (my/-eshell-prompt-format-span int-len)
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'face '(:foreground "gold1")))))
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(defun my/-eshell-prompt-function ()
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"Function for `eshell-prompt-function'"
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(let* ((end-time (current-time))
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(dir (my/-eshell-prompt-get-dir))
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(prompt (concat
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"\n"
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(propertize dir 'face '(:foreground "dark turquoise"))
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(unless (file-writable-p dir)
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" ")
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(my/-eshell-prompt-vc-status)
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(my/-eshell-prompt-last-command-time end-time)
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(propertize "\n" 'read-only t 'rear-nonsticky t)
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(propertize
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"❯ " 'face `(:foreground
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,(if (= eshell-last-command-status 0)
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"lime green"
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"red"))
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'rear-nonsticky t))))
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(setq my/-eshell-prompt-last-start-time nil)
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prompt))
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(setq eshell-prompt-function #'my/-eshell-prompt-function
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eshell-prompt-regexp "^❯ "
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eshell-highlight-prompt nil))
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(use-package esh-help
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:hook (eshell-mode . my/-setup-eshell-help-func)
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:init
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@ -739,8 +881,6 @@ COMMAND and COMINT are like `compile'."
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(eldoc-mode 1)
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(setq-local evil-lookup-func #'esh-help-run-help))
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(setup-esh-help-eldoc))
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(use-package esh-autosuggest
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:hook (eshell-mode . esh-autosuggest-mode))
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(use-package eshell-syntax-highlighting
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:init
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(eshell-syntax-highlighting-global-mode 1))
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