328 lines
13 KiB
EmacsLisp
328 lines
13 KiB
EmacsLisp
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;;; magit-clone.el --- Clone a repository -*- lexical-binding:t -*-
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;; Copyright (C) 2008-2022 The Magit Project Contributors
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;; Author: Jonas Bernoulli <jonas@bernoul.li>
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;; Maintainer: Jonas Bernoulli <jonas@bernoul.li>
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;; SPDX-License-Identifier: GPL-3.0-or-later
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;; Magit is free software: you can redistribute it and/or modify it
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;; 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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;;
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;; Magit is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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;; 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 Magit. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This library implements clone commands.
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;;; Code:
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(require 'magit)
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;;; Options
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(defcustom magit-clone-set-remote-head nil
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"Whether cloning creates the symbolic-ref `<remote>/HEAD'."
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:package-version '(magit . "2.4.2")
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:group 'magit-commands
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:type 'boolean)
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(defcustom magit-clone-set-remote.pushDefault 'ask
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"Whether to set the value of `remote.pushDefault' after cloning.
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If t, then set without asking. If nil, then don't set. If
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`ask', then ask."
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:package-version '(magit . "2.4.0")
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:group 'magit-commands
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:type '(choice (const :tag "set" t)
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(const :tag "ask" ask)
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(const :tag "don't set" nil)))
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(defcustom magit-clone-default-directory nil
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"Default directory to use when `magit-clone' reads destination.
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If nil (the default), then use the value of `default-directory'.
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If a directory, then use that. If a function, then call that
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with the remote url as only argument and use the returned value."
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:package-version '(magit . "2.90.0")
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:group 'magit-commands
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:type '(choice (const :tag "value of default-directory")
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(directory :tag "constant directory")
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(function :tag "function's value")))
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(defcustom magit-clone-always-transient nil
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"Whether `magit-clone' always acts as a transient prefix command.
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If nil, then a prefix argument has to be used to show the transient
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popup instead of invoking the default suffix `magit-clone-regular'
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directly."
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:package-version '(magit . "3.0.0")
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:group 'magit-commands
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:type 'boolean)
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(defcustom magit-clone-name-alist
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'(("\\`\\(?:github:\\|gh:\\)?\\([^:]+\\)\\'" "github.com" "github.user")
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("\\`\\(?:gitlab:\\|gl:\\)\\([^:]+\\)\\'" "gitlab.com" "gitlab.user"))
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"Alist mapping repository names to repository urls.
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Each element has the form (REGEXP HOSTNAME USER). When the user
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enters a name when a cloning command asks for a name or url, then
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that is looked up in this list. The first element whose REGEXP
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matches is used.
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The format specified by option `magit-clone-url-format' is used
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to turn the name into an url, using HOSTNAME and the repository
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name. If the provided name contains a slash, then that is used.
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Otherwise if the name omits the owner of the repository, then the
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default user specified in the matched entry is used.
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If USER contains a dot, then it is treated as a Git variable and
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the value of that is used as the username. Otherwise it is used
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as the username itself."
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:package-version '(magit . "3.0.0")
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:group 'magit-commands
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:type '(repeat (list regexp
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(string :tag "hostname")
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(string :tag "user name or git variable"))))
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(defcustom magit-clone-url-format "git@%h:%n.git"
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"Format used when turning repository names into urls.
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%h is the hostname and %n is the repository name, including
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the name of the owner. Also see `magit-clone-name-alist'."
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:package-version '(magit . "3.0.0")
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:group 'magit-commands
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:type 'regexp)
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;;; Commands
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;;;###autoload (autoload 'magit-clone "magit-clone" nil t)
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(transient-define-prefix magit-clone (&optional transient)
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"Clone a repository."
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:man-page "git-clone"
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["Fetch arguments"
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("-B" "Clone a single branch" "--single-branch")
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("-n" "Do not clone tags" "--no-tags")
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("-S" "Clones submodules" "--recurse-submodules" :level 6)
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("-l" "Do not optimize" "--no-local" :level 7)]
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["Setup arguments"
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("-o" "Set name of remote" ("-o" "--origin="))
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("-b" "Set HEAD branch" ("-b" "--branch="))
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(magit-clone:--filter
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:if (lambda () (magit-git-version>= "2.17.0"))
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:level 7)
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("-g" "Separate git directory" "--separate-git-dir="
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transient-read-directory :level 7)
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("-t" "Use template directory" "--template="
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transient-read-existing-directory :level 6)]
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["Local sharing arguments"
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("-s" "Share objects" ("-s" "--shared" :level 7))
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("-h" "Do not use hardlinks" "--no-hardlinks")]
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["Clone"
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("C" "regular" magit-clone-regular)
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("s" "shallow" magit-clone-shallow)
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("d" "shallow since date" magit-clone-shallow-since :level 7)
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("e" "shallow excluding" magit-clone-shallow-exclude :level 7)
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(">" "sparse checkout" magit-clone-sparse
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:if (lambda () (magit-git-version>= "2.25.0"))
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:level 6)
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("b" "bare" magit-clone-bare)
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("m" "mirror" magit-clone-mirror)]
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(interactive (list (or magit-clone-always-transient current-prefix-arg)))
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(if transient
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(transient-setup 'magit-clone)
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(call-interactively #'magit-clone-regular)))
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(transient-define-argument magit-clone:--filter ()
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:description "Filter some objects"
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:class 'transient-option
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:key "-f"
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:argument "--filter="
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:reader #'magit-clone-read-filter)
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(defun magit-clone-read-filter (prompt initial-input history)
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(magit-completing-read prompt
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(list "blob:none" "tree:0")
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nil nil initial-input history))
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;;;###autoload
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(defun magit-clone-regular (repository directory args)
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"Create a clone of REPOSITORY in DIRECTORY.
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Then show the status buffer for the new repository."
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(interactive (magit-clone-read-args))
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(magit-clone-internal repository directory args))
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;;;###autoload
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(defun magit-clone-shallow (repository directory args depth)
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"Create a shallow clone of REPOSITORY in DIRECTORY.
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Then show the status buffer for the new repository.
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With a prefix argument read the DEPTH of the clone;
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otherwise use 1."
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(interactive (append (magit-clone-read-args)
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(list (if current-prefix-arg
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(read-number "Depth: " 1)
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1))))
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(magit-clone-internal repository directory
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(cons (format "--depth=%s" depth) args)))
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;;;###autoload
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(defun magit-clone-shallow-since (repository directory args date)
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"Create a shallow clone of REPOSITORY in DIRECTORY.
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Then show the status buffer for the new repository.
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Exclude commits before DATE, which is read from the
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user."
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(interactive (append (magit-clone-read-args)
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(list (transient-read-date "Exclude commits before: "
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nil nil))))
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(magit-clone-internal repository directory
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(cons (format "--shallow-since=%s" date) args)))
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;;;###autoload
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(defun magit-clone-shallow-exclude (repository directory args exclude)
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"Create a shallow clone of REPOSITORY in DIRECTORY.
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Then show the status buffer for the new repository.
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Exclude commits reachable from EXCLUDE, which is a
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branch or tag read from the user."
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(interactive (append (magit-clone-read-args)
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(list (read-string "Exclude commits reachable from: "))))
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(magit-clone-internal repository directory
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(cons (format "--shallow-exclude=%s" exclude) args)))
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;;;###autoload
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(defun magit-clone-bare (repository directory args)
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"Create a bare clone of REPOSITORY in DIRECTORY.
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Then show the status buffer for the new repository."
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(interactive (magit-clone-read-args))
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(magit-clone-internal repository directory (cons "--bare" args)))
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;;;###autoload
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(defun magit-clone-mirror (repository directory args)
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"Create a mirror of REPOSITORY in DIRECTORY.
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Then show the status buffer for the new repository."
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(interactive (magit-clone-read-args))
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(magit-clone-internal repository directory (cons "--mirror" args)))
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;;;###autoload
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(defun magit-clone-sparse (repository directory args)
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"Clone REPOSITORY into DIRECTORY and create a sparse checkout."
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(interactive (magit-clone-read-args))
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(magit-clone-internal repository directory (cons "--no-checkout" args)
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'sparse))
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(defun magit-clone-internal (repository directory args &optional sparse)
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(let* ((checkout (not (memq (car args) '("--bare" "--mirror"))))
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(remote (or (transient-arg-value "--origin" args)
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(magit-get "clone.defaultRemote")
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"origin"))
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(set-push-default
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(and checkout
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(or (eq magit-clone-set-remote.pushDefault t)
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(and magit-clone-set-remote.pushDefault
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(y-or-n-p (format "Set `remote.pushDefault' to %S? "
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remote)))))))
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(run-hooks 'magit-credential-hook)
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(setq directory (file-name-as-directory (expand-file-name directory)))
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(when (file-exists-p directory)
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(if (file-directory-p directory)
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(when (length> (directory-files directory) 2)
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(let ((name (magit-clone--url-to-name repository)))
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(unless (and name
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(setq directory (file-name-as-directory
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(expand-file-name name directory)))
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(not (file-exists-p directory)))
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(user-error "%s already exists" directory))))
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(user-error "%s already exists and is not a directory" directory)))
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(magit-run-git-async "clone" args "--" repository
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(magit-convert-filename-for-git directory))
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;; Don't refresh the buffer we're calling from.
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(process-put magit-this-process 'inhibit-refresh t)
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(set-process-sentinel
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magit-this-process
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(lambda (process event)
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(when (memq (process-status process) '(exit signal))
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(let ((magit-process-raise-error t))
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(magit-process-sentinel process event)))
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(when (and (eq (process-status process) 'exit)
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(= (process-exit-status process) 0))
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(when checkout
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(let ((default-directory directory))
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(when set-push-default
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(setf (magit-get "remote.pushDefault") remote))
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(unless magit-clone-set-remote-head
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(magit-remote-unset-head remote))))
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(when (and sparse checkout)
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(when (magit-git-version< "2.25.0")
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(user-error
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"`git sparse-checkout' not available until Git v2.25"))
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(let ((default-directory directory))
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(magit-call-git "sparse-checkout" "init" "--cone")
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(magit-call-git "checkout" (magit-get-current-branch))))
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(with-current-buffer (process-get process 'command-buf)
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(magit-status-setup-buffer directory)))))))
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(defun magit-clone-read-args ()
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(let ((repo (magit-clone-read-repository)))
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(list repo
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(read-directory-name
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"Clone to: "
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(if (functionp magit-clone-default-directory)
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(funcall magit-clone-default-directory repo)
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magit-clone-default-directory)
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nil nil
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(magit-clone--url-to-name repo))
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(transient-args 'magit-clone))))
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(defun magit-clone-read-repository ()
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(magit-read-char-case "Clone from " nil
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(?u "[u]rl or name"
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(let ((str (magit-read-string-ns "Clone from url or name")))
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(if (string-match-p "\\(://\\|@\\)" str)
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str
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(magit-clone--name-to-url str))))
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(?p "[p]ath"
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(magit-convert-filename-for-git
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(read-directory-name "Clone repository: ")))
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(?l "[l]ocal url"
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(concat "file://"
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(magit-convert-filename-for-git
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(read-directory-name "Clone repository: file://"))))
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(?b "or [b]undle"
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(magit-convert-filename-for-git
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(read-file-name "Clone from bundle: ")))))
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(defun magit-clone--url-to-name (url)
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(and (string-match "\\([^/:]+?\\)\\(/?\\.git\\)?$" url)
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(match-string 1 url)))
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(defun magit-clone--name-to-url (name)
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(or (seq-some
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(pcase-lambda (`(,re ,host ,user))
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(and (string-match re name)
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(let ((repo (match-string 1 name)))
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(magit-clone--format-url host user repo))))
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magit-clone-name-alist)
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(user-error "Not an url and no matching entry in `%s'"
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'magit-clone-name-alist)))
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(defun magit-clone--format-url (host user repo)
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(format-spec
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magit-clone-url-format
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`((?h . ,host)
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(?n . ,(if (string-search "/" repo)
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repo
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(if (string-search "." user)
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(if-let ((user (magit-get user)))
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(concat user "/" repo)
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(user-error "Set %S or specify owner explicitly" user))
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(concat user "/" repo)))))))
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;;; _
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(provide 'magit-clone)
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;;; magit-clone.el ends here
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