184 lines
6.0 KiB
EmacsLisp
184 lines
6.0 KiB
EmacsLisp
;;; magithub-core.el --- core functions for magithub -*- lexical-binding: t; -*-
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;; Copyright (C) 2016 Sean Allred
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;; Author: Sean Allred <code@seanallred.com>
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;; Keywords: tools
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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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
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(require 'magit)
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(defun magithub-github-repository-p ()
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"Non-nil if \"origin\" points to GitHub or a whitelisted domain."
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(let ((url (magit-get "remote" "origin" "url")))
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(cl-some (lambda (domain) (s-contains? domain url))
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(cons "github.com" (magit-get-all "hub" "host")))))
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(defun magithub-repo-id ()
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"Returns an identifying value for this repository."
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(magit-get "remote" "origin" "url"))
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(defun magithub--api-available-p ()
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"Non-nil if the API is available."
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(let ((magit-git-executable "ping")
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(magit-pre-call-git-hook nil)
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(magit-git-global-arguments nil))
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(= 0 (magit-git-exit-code "-c 1" "api.github.com"))))
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(defun magithub--completing-read-multiple (prompt collection)
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"Using PROMPT, get a list of elements in COLLECTION.
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This function continues until all candidates have been entered or
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until the user enters a value of \"\". Duplicate entries are not
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allowed."
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(let (label-list this-label done)
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(while (not done)
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(setq collection (remove this-label collection)
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this-label "")
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(when collection
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;; @todo it would be nice to detect whether or not we are
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;; allowed to create labels -- if not, we can require-match
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(setq this-label (completing-read prompt collection)))
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(unless (setq done (s-blank? this-label))
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(push this-label label-list)))
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label-list))
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(defconst magithub-hash-regexp
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(rx bow (= 40 (| digit (any (?A . ?F) (?a . ?f)))) eow)
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"Regexp for matching commit hashes.")
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(defcustom magithub-hub-executable "hub"
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"The hub executable used by Magithub."
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:group 'magithub
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:package-version '(magithub . "0.1")
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:type 'string)
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(defvar magithub-debug-mode nil
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"When non-nil, echo hub commands before they're executed.")
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(defvar magithub-hub-error nil
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"When non-nil, this is a message for when hub fails.")
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(defmacro magithub-with-hub (&rest body)
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`(let ((magit-git-executable magithub-hub-executable)
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(magit-pre-call-git-hook nil)
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(magit-git-global-arguments nil))
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,@body))
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(defun magithub--hub-command (magit-function command args)
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(unless (executable-find magithub-hub-executable)
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(user-error "Hub (hub.github.com) not installed; aborting"))
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(unless (file-exists-p "~/.config/hub")
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(user-error "Hub hasn't been initialized yet; aborting"))
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(when magithub-debug-mode
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(message "Calling hub with args: %S %S" command args))
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(with-timeout (5 (error "Took too long! %s%S" command args))
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(magithub-with-hub (funcall magit-function command args))))
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(defun magithub--command (command &optional args)
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"Run COMMAND synchronously using `magithub-hub-executable'."
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(magithub--hub-command #'magit-run-git command args))
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(defun magithub--command-with-editor (command &optional args)
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"Run COMMAND asynchronously using `magithub-hub-executable'.
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Ensure GIT_EDITOR is set up appropriately."
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(magithub--hub-command #'magit-run-git-with-editor command args))
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(defun magithub--command-output (command &optional args)
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"Run COMMAND synchronously using `magithub-hub-executable'
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and returns its output as a list of lines."
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(magithub--hub-command #'magit-git-lines command args))
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(defun magithub--command-quick (command &optional args)
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"Quickly execute COMMAND with ARGS."
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(ignore (magithub--command-output command args)))
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(defun magithub--meta-new-issue ()
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"Open a new Magithub issue.
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See /.github/ISSUE_TEMPLATE.md in this repository."
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(interactive)
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(browse-url "https://github.com/vermiculus/magithub/issues/new"))
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(defun magithub--meta-help ()
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"Opens Magithub help."
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(interactive)
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(browse-url "https://gitter.im/vermiculus/magithub"))
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(defun magithub-enable ()
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"Enable Magithub for this repository."
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(interactive)
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(magit-set "yes" "magithub" "enabled")
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(when (derived-mode-p 'magit-status-mode)
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(magit-refresh)))
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(defun magithub-disable ()
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"Disable Magithub for this repository."
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(interactive)
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(magit-set "no" "magithub" "enabled")
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(when (derived-mode-p 'magit-status-mode)
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(magit-refresh)))
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(defun magithub-enabled-p ()
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"Returns non-nil when Magithub is enabled for this repository."
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(when (member (magit-get "magithub" "enabled") '("yes" nil)) t))
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(defun magithub-enabled-toggle ()
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"Toggle Magithub"
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(interactive)
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(if (magithub-enabled-p)
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(magithub-disable)
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(magithub-enable)))
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(defun magithub-usable-p ()
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"Non-nil if Magithub should do its thing."
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(and (executable-find magithub-hub-executable)
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(magithub-enabled-p)
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(magithub-github-repository-p)))
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(defun magithub-error (err-message tag &optional trace)
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"Report a Magithub error."
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(setq trace (or trace (with-output-to-string (backtrace))))
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(when (y-or-n-p (concat tag " Report? (A bug report will be placed in your clipboard.)"))
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(with-current-buffer-window
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(get-buffer-create "*magithub issue*")
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#'display-buffer-pop-up-window nil
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(when (fboundp 'markdown-mode) (markdown-mode))
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(insert
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(kill-new
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(format
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"## Automated error report
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### Description
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%s
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### Backtrace
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```
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%s```
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"
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(read-string "Briefly describe what you were doing: ")
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trace))))
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(magithub--meta-new-issue))
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(error err-message))
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(provide 'magithub-core)
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;;; magithub-core.el ends here
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