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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 Jookia <166291@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix build git)
#:use-module (ice-9 regex)
#:use-module (ice-9 format)
#:use-module (srfi srfi-2)
#:use-module (web uri)
#:use-module (web client)
#:use-module (guix build utils)
#:export (git-fetch
git-proxy))
;;; Commentary:
;;;
;;; This is the build-side support code of (guix git-download). It allows a
;;; Git repository to be cloned and checked out at a specific commit.
;;;
;;; Code:
(define* (git-fetch url commit directory
#:key (git-command "git") proxy recursive?)
"Fetch COMMIT from URL into DIRECTORY. COMMIT must be a valid Git commit
identifier. When RECURSIVE? is true, all the sub-modules of URL are fetched,
recursively. Return #t on success, #f otherwise."
;; Disable TLS certificate verification. The hash of the checkout is known
;; in advance anyway.
(setenv "GIT_SSL_NO_VERIFY" "true")
;; Set up Git to proxy git:// URLs over the http_proxy if needed.
(if (current-http-proxy)
(setenv "GIT_PROXY_COMMAND" proxy)
'())
;; We cannot use "git clone --recursive" since the following "git checkout"
;; effectively removes sub-module checkouts as of Git 2.6.3.
(and (zero? (system* git-command "clone" url directory))
(with-directory-excursion directory
(system* git-command "tag" "-l")
(and (zero? (system* git-command "checkout" commit))
(begin
(when recursive?
;; Now is the time to fetch sub-modules.
(unless (zero? (system* git-command "submodule" "update"
"--init" "--recursive"))
(error "failed to fetch sub-modules" url))
;; In sub-modules, '.git' is a flat file, not a directory,
;; so we can use 'find-files' here.
(for-each delete-file-recursively
(find-files directory "^\\.git$")))
;; The contents of '.git' vary as a function of the current
;; status of the Git repo. Since we want a fixed output, this
;; directory needs to be taken out.
(delete-file-recursively ".git")
#t)))))
\f
;;;
;;; Network.
;;;
(define* (git-proxy #:key socat)
"Use SOCAT and the environment's HTTP_PROXY variable to tunnel traffic
between the standard input/output and the proxy."
(or (and-let* ((proxy-uri (string->uri (current-http-proxy)))
(proxy-host (uri-host proxy-uri))
(proxy-port (number->string (uri-port proxy-uri)))
(remote-host (list-ref (command-line) 1))
(remote-port (list-ref (command-line) 2)))
(or (zero? (system* socat "STDIO"
(string-append "PROXY:" proxy-host ":"
remote-host ":" remote-port ","
"proxyport=" proxy-port)))
(format (current-error-port)
"socat exited with a non-zero exit code!~%")))
(format (current-error-port)
"Unable to parse current-http-proxy ~s~%" (current-http-proxy))))
;;; git.scm ends here
|