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git-download: Correctly implement recursive checkouts.

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Previously, the 'git checkout' invocation would remove sub-modules that
had been initialized by 'git clone --recursive'.

* guix/build/git.scm (git-fetch): Never use "git clone --recursive".
Invoke "git submodule update --init --recursive" after "git checkout".
Remove '.git' directories as the last step.
This commit is contained in:
Ludovic Courtès 2016-01-04 22:10:03 +01:00
parent 4828ff91ff
commit 35a6dabcf1
1 changed files with 23 additions and 18 deletions
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25
guix/build/git.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014, 2016 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -37,23 +37,28 @@ (define* (git-fetch url commit directory
;; in advance anyway.
(setenv "GIT_SSL_NO_VERIFY" "true")
(let ((args `("clone" ,@(if recursive? '("--recursive") '())
,url ,directory)))
(and (zero? (apply system* git-command args))
;; 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
;; 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")
(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$")))
#t))))))
;; 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)))))
;;; git.scm ends here