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https://github.com/redguardtoo/elpa-mirror

Create local emacs package repository. 15 seconds to install 115 packages.
https://github.com/redguardtoo/elpa-mirror

Last synced: 3 months ago
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Create local emacs package repository. 15 seconds to install 115 packages.

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* elpa-mirror
[[https://github.com/redguardtoo/elpa-mirror/actions/workflows/test.yml][https://github.com/redguardtoo/elpa-mirror/actions/workflows/test.yml/badge.svg]]
[[http://melpa.org/#/elpa-mirror][file:http://melpa.org/packages/elpa-mirror-badge.svg]]
[[http://stable.melpa.org/#/elpa-mirror][file:http://stable.melpa.org/packages/elpa-mirror-badge.svg]]

Create local Emacs package repository from *installed packages* so package upgrade never breaks.

* Why
- Package installation is fast. It takes only 15 seconds to install 115 packages
- The package repository could be hosted on USB/Dropbox/GitHub
- Tested with Emacs 27, 28, 29 on OSX/Cygwin/Windows10/Linux
* Install
CLI program "tar" is required. It's already installed on Windows10/Linux/macOS.

- Download =elpa-mirror.el= to somewhere (say =~/.emacs.d/site-lisp/elpa-mirror/=)
- Add below code into "~/.emacs",
#+begin_src elisp
(add-to-list 'load-path "~/.emacs.d/site-lisp/elpa-mirror")
(require 'elpa-mirror)
#+end_src

* Usage
=M-x elpamr-create-mirror-for-installed= to create local repository.

To update existing local repository, run =M-x elpamr-create-mirror-for-installed= again.

BTW, =elpa-mirror.el= can run as an independent script,
#+begin_src sh
mkdir -p ~/myelpa && emacs --batch -l ~/.emacs.d/init.el -l ~/any-directory-you-prefer/elpa-mirror.el --eval='(setq elpamr-default-output-directory "~/myelpa")' --eval='(elpamr-create-mirror-for-installed)'
#+end_src

To use the local repository =~/myelpa/=, insert below code into =~/.emacs=,
#+begin_src elisp
;; myelpa is the ONLY repository now, dont forget trailing slash in the directory
(setq package-archives '(("myelpa" . "~/myelpa/")))
#+end_src

** Repository on Dropbox
Insert below code into =~/.emacs=:
#+begin_src elisp
;; add-to-list will not override default elpa.
;; So now you have two repositories.
;; One is GNU elpa. Another is myelpa
(add-to-list 'package-archives
'("myelpa" . "https://dl.dropboxusercontent.com/u/858862/myelpa/"))
#+end_src

** Repository on GitHub
My repository is [[https://github.com/redguardtoo/myelpa]].

Insert below code into =.emacs=:
#+begin_src elisp
;; add-to-list will not override default elpa.
;; So now you have two repositories.
;; One is GNU elpa. Another is myelpa
(add-to-list 'package-archives
'("myelpa" . "https://raw.githubusercontent.com/redguardtoo/myelpa/master/"))
#+end_src

* Tips
** Exclude packages
See =elpamr-exclude-packages=.
** Exclude files/directories in package directory
See =elpamr-tar-command-exclude-patterns=.

=elpamr-exclude-patterns-filter-function= lets users define a filter function to exclude files and directories per package. The function returns the result to replace =elpamr-tar-command-exclude-patterns=.

Below setup adds directory "bin/" into package "vagrant-tramp".
#+begin_src elisp
(setq elpamr-exclude-patterns-filter-function
(lambda (package-dir)
(let ((patterns elpamr-tar-command-exclude-patterns))
(when (string-match "vagrant-tramp" package-dir)
(setq patterns (remove "*/bin" patterns)))
patterns)))
#+end_src

** Change output directory,
#+begin_src elisp
(setq elpamr-default-output-directory "~/myelpa")
#+end_src

* Report a Bug

Reproduce the bug, report it at [[https://github.com/redguardtoo/elpa-mirror]], and attach the contents of the buffer =*elpa-mirror log*=.