229 lines
8.2 KiB
EmacsLisp
229 lines
8.2 KiB
EmacsLisp
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;;; gitconfig.el --- Emacs lisp interface to work with git-config variables
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;;
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;; Filename: gitconfig.el
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;; Description: Emacs lisp interface to work with git-config variables
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;; Author: Samuel Tonini
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;; Maintainer: Samuel Tonini
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;; Version: 1.0.0
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;; Package-Version: 20130718.235
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;; URL:
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;; Keywords: git, gitconfig, git-config
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 3, or
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;; (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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;; Floor, Boston, MA 02110-1301, USA.
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;;; Commentary:
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;;
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;; Manual Installation:
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;;
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;; (add-to-list 'load-path "~/path/to/gitconfig.el/")
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;; (require 'gitconfig)
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;;
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;; Interesting variables are:
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;;
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;; `gitconfig-git-command'
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;;
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;; The shell command for <git>
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;;
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;; `gitconfig-buffer-name'
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;;
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;; Name of the <git> output buffer.
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;;
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;; Interactive functions are:
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;;
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;; M-x gitconfig-execute-command
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;;
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;; Run <git config> with custom ARGUMENTS and display it in `gitconfig-buffer-name'
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;;
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;; Non-Interactive functions are:
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;;
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;; `gitconfig-current-inside-git-repository-p'
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;;
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;; Return t if `default-directory' is a git repository
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;;
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;; `gitconfig-path-to-git-repository'
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;;
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;; Return the absolute path of the current git repository
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;;
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;; `gitconfig-get-variables'
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;;
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;; Get all variables for the given LOCATION
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;; and return it as a hash table
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;;
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;; `gitconfig-set-variable'
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;;
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;; Set a specific LOCATION variable with a given NAME and VALUE
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;;
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;; `gitconfig-get-variable'
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;;
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;; Return a specific LOCATION variable for the given NAME
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;;
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;; `gitconfig-delete-variable'
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;;
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;; Delete a specific LOCATION variable for the given NAME
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;;
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;; `gitconfig-get-local-variables'
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;;
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;; Return all <git config --local --list> variables as hash table
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;;
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;; `gitconfig-get-global-variables'
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;;
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;; Return all <git config --global --list> variables as hash table
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;;
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;; `gitconfig-get-system-variables'
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;;
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;; Return all <git config --system --list> variables as hash table
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;;
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;; `gitconfig-get-local-variable'
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;;
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;; Return a specific <git config --local --list> variable by the given NAME
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;;
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;; `gitconfig-get-global-variable'
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;;
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;; Return a specific <git config --global --list> variable by the given NAME
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;;
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;; `gitconfig-get-system-variable'
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;;
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;; Return a specific <git config --system --list> variable by the given NAME
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;;
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;;; Code:
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(defcustom gitconfig-git-command "git"
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"The shell command for git"
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:type 'string
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:group 'gitconfig)
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(defvar gitconfig-buffer-name "*GITCONFIG*"
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"Name of the git output buffer.")
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(defun gitconfig--get-keys (hash)
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"Return all keys for given HASH"
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(let (keys)
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(maphash (lambda (key value) (setq keys (cons key keys))) hash)
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keys))
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(defun gitconfig--get-buffer (name)
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"Get and kills a buffer if exists and returns a new one."
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(let ((buffer (get-buffer name)))
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(when buffer (kill-buffer buffer))
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(generate-new-buffer name)))
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(defun gitconfig--buffer-setup (buffer)
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"Setup the gitconfig buffer before display."
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(display-buffer buffer)
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(with-current-buffer buffer
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(setq buffer-read-only nil)
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(local-set-key "q" 'quit-window)))
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(defun gitconfig-current-inside-git-repository-p ()
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"Return t if the `default-directory' is a <git> repository"
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(let ((inside-work-tree (shell-command-to-string
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(format "%s rev-parse --is-inside-work-tree"
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gitconfig-git-command))))
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(string= (replace-regexp-in-string "\n" "" inside-work-tree nil t) "true")))
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(defun gitconfig-path-to-git-repository ()
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"Return the absolute path of the current git repository"
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(let ((path-to-git-repo (shell-command-to-string
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(format "%s rev-parse --show-toplevel"
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gitconfig-git-command))))
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(replace-regexp-in-string "\n" "" path-to-git-repo nil t)))
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(defun gitconfig--execute-command (arguments)
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(unless (gitconfig-current-inside-git-repository-p)
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(user-error "Fatal: Not a git repository (or any of the parent directories): .git"))
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(shell-command-to-string (format "%s config %s" gitconfig-git-command arguments)))
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(defun gitconfig-get-variables (location)
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"Get all variables for the given LOCATION and return it as a hash table"
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(let ((config-string (gitconfig--execute-command (format "--%s --list" location)))
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(variable-hash (make-hash-table :test 'equal)))
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(setq config-string (split-string config-string "\n"))
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(delete "" config-string)
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(mapcar (lambda (x) (puthash (car (split-string x "="))
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(car (last (split-string x "=")))
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variable-hash)) config-string)
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variable-hash))
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(defun gitconfig-set-variable (location name value)
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"Set a specific LOCATION variable with a given NAME and VALUE"
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(unless (gitconfig-current-inside-git-repository-p)
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(user-error "Fatal: Not a git repository (or any of the parent directories): .git"))
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(let ((exit-status (shell-command
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(format "%s config --%s --replace-all %s %s"
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gitconfig-git-command location name value))))
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(unless (= exit-status 0)
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(user-error (format "Error: key does not contain a section: %s" name)))
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t))
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(defun gitconfig-get-variable (location name)
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"Return a specific LOCATION variable for the given NAME"
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(when (string= name "")
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(user-error "Error: variable does not exist."))
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(let ((variable (gitconfig--execute-command (format "--%s --get %s" location name))))
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(when (string-match "^error: " variable)
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(user-error variable))
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(if (string-match "\n+" variable)
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(replace-match "" t t variable)
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variable)))
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(defun gitconfig-delete-variable (location name)
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"Delete a specific LOCATION variable for the given NAME"
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(unless (gitconfig-current-inside-git-repository-p)
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(user-error "Fatal: Not a git repository (or any of the parent directories): .git"))
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(let ((exit-status (shell-command
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(format "%s config --%s --unset-all %s"
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gitconfig-git-command location name))))
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(unless (= exit-status 0)
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(user-error (format "Error: key does not contain a section: %s" name)))
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t))
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(defun gitconfig-execute-command (arguments)
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"Run <git config> with custom ARGUMENTS and display it in buffer"
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(interactive "Mgit config: ")
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(let ((buffer (gitconfig--get-buffer gitconfig-buffer-name)))
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(shell-command (format "%s config %s" gitconfig-git-command arguments) buffer)
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(gitconfig--buffer-setup buffer)))
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(defun gitconfig-get-local-variables ()
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"Return all <git config --local --list> variables as hash table"
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(gitconfig-get-variables "local"))
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(defun gitconfig-get-global-variables ()
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"Return all <git config --global --list> variables as hash table"
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(gitconfig-get-variables "global"))
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(defun gitconfig-get-system-variables ()
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"Return all <git config --system --list> variables as hash table"
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(gitconfig-get-variables "system"))
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(defun gitconfig-get-local-variable (name)
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"Return a specific <git config --local --list> variable by the given NAME"
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(gitconfig-get-variable "local" name))
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(defun gitconfig-get-global-variable (name)
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"Return a specific <git config --global --list> variable by the given NAME"
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(gitconfig-get-variable "global" name))
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(defun gitconfig-get-system-variable (name)
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"Return a specific <git config --system --list> variable by the given NAME"
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(gitconfig-get-variable "system" name))
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(provide 'gitconfig)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; gitconfig.el ends here
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