git: Require Guile-Git 0.3.0 or later.

* guix/git.scm (auth-supported?): Remove.
(clone*): Inline code that was dependent on AUTH-SUPPORTED?.
(update-cached-checkout): Likewise.
(resolve-reference): Remove check for 'object-lookup-prefix' and use it
unconditionally.
(load-git-submodules): Remove.
(update-submodules): Use 'repository-submodules', 'submodule-lookup',
etc. unconditionally.
(update-cached-checkout): Use 'repository-close!' unconditionally.
* m4/guix.m4 (GUIX_CHECK_GUILE_GIT): New macro.
* configure.ac: Use it and error out when it fails.
* doc/guix.texi (Requirements): Bump to Guile-Git 0.3.0.
This commit is contained in:
Ludovic Courtès 2020-10-12 21:47:14 +02:00
parent 830ea72799
commit 59bb1ae3a9
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
4 changed files with 52 additions and 63 deletions

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@ -144,6 +144,11 @@ if test "x$guix_cv_have_recent_guile_gcrypt" != "xyes"; then
AC_MSG_ERROR([A recent Guile-Gcrypt could not be found; please install it.])
fi
GUIX_CHECK_GUILE_GIT
if test "x$guix_cv_have_recent_guile_git" != "xyes"; then
AC_MSG_ERROR([A recent Guile-Git could not be found; please install it.])
fi
dnl Check for Guile-zlib.
GUILE_MODULE_AVAILABLE([have_guile_zlib], [(zlib)])
if test "x$have_guile_zlib" != "xyes"; then

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@ -826,8 +826,8 @@ or later;
@item @uref{https://notabug.org/guile-lzlib/guile-lzlib, Guile-lzlib};
@item
@c FIXME: Specify a version number once a release has been made.
@uref{https://gitlab.com/guile-git/guile-git, Guile-Git}, from August
2017 or later;
@uref{https://gitlab.com/guile-git/guile-git, Guile-Git}, version 0.3.0
or later;
@item @uref{https://savannah.nongnu.org/projects/guile-json/, Guile-JSON}
4.3.0 or later;
@item @url{https://www.gnu.org/software/make/, GNU Make}.

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@ -20,6 +20,7 @@
(define-module (guix git)
#:use-module (git)
#:use-module (git object)
#:use-module (git submodule)
#:use-module (guix i18n)
#:use-module (guix base32)
#:use-module (gcrypt hash)
@ -116,10 +117,6 @@ the 'SSL_CERT_FILE' and 'SSL_CERT_DIR' environment variables."
(string-append "R:" url)
url))))))
;; Authentication appeared in Guile-Git 0.3.0, check if it is available.
(define auth-supported?
(false-if-exception (resolve-interface '(git auth))))
(define (clone* url directory)
"Clone git repository at URL into DIRECTORY. Upon failure,
make sure no empty directory is left behind."
@ -127,18 +124,10 @@ make sure no empty directory is left behind."
(lambda ()
(mkdir-p directory)
;; Note: Explicitly pass options to work around the invalid default
;; value in Guile-Git: <https://bugs.gnu.org/29238>.
(if (module-defined? (resolve-interface '(git))
'clone-init-options)
(let ((auth-method (and auth-supported?
(%make-auth-ssh-agent))))
(clone url directory
(if auth-supported?
(make-clone-options
#:fetch-options (make-fetch-options auth-method))
(clone-init-options))))
(clone url directory)))
(let ((auth-method (%make-auth-ssh-agent)))
(clone url directory
(make-clone-options
#:fetch-options (make-fetch-options auth-method)))))
(lambda _
(false-if-exception (rmdir directory)))))
@ -167,12 +156,7 @@ corresponding Git object."
;; read out-of-bounds when passed a string shorter than 40 chars,
;; which is why we delay calls to it below.
(if (< len 40)
(if (module-defined? (resolve-interface '(git object))
'object-lookup-prefix)
(object-lookup-prefix repository (string->oid commit) len)
(raise (condition
(&message
(message "long Git object ID is required")))))
(object-lookup-prefix repository (string->oid commit) len)
(object-lookup repository (string->oid commit)))))
(('tag-or-commit . str)
(if (or (> (string-length str) 40)
@ -234,40 +218,23 @@ dynamic extent of EXP."
(lambda (key err)
(report-git-error err))))
(define (load-git-submodules)
"Attempt to load (git submodules), which was missing until Guile-Git 0.2.0.
Return true on success, false on failure."
(match (false-if-exception (resolve-interface '(git submodule)))
(#f
(set! load-git-submodules (const #f))
#f)
(iface
(module-use! (resolve-module '(guix git)) iface)
(set! load-git-submodules (const #t))
#t)))
(define* (update-submodules repository
#:key (log-port (current-error-port)))
"Update the submodules of REPOSITORY, a Git repository object."
;; Guile-Git < 0.2.0 did not have (git submodule).
(if (load-git-submodules)
(for-each (lambda (name)
(let ((submodule (submodule-lookup repository name)))
(format log-port (G_ "updating submodule '~a'...~%")
name)
(submodule-update submodule)
(for-each (lambda (name)
(let ((submodule (submodule-lookup repository name)))
(format log-port (G_ "updating submodule '~a'...~%")
name)
(submodule-update submodule)
;; Recurse in SUBMODULE.
(let ((directory (string-append
(repository-working-directory repository)
"/" (submodule-path submodule))))
(with-repository directory repository
(update-submodules repository
#:log-port log-port)))))
(repository-submodules repository))
(format (current-error-port)
(G_ "Support for submodules is missing; \
please upgrade Guile-Git.~%"))))
;; Recurse in SUBMODULE.
(let ((directory (string-append
(repository-working-directory repository)
"/" (submodule-path submodule))))
(with-repository directory repository
(update-submodules repository
#:log-port log-port)))))
(repository-submodules repository)))
(define-syntax-rule (false-if-git-not-found exp)
"Evaluate EXP, returning #false if a GIT_ENOTFOUND error is raised."
@ -331,12 +298,9 @@ it unchanged."
;; Only fetch remote if it has not been cloned just before.
(when (and cache-exists?
(not (reference-available? repository ref)))
(if auth-supported?
(let ((auth-method (and auth-supported?
(%make-auth-ssh-agent))))
(remote-fetch (remote-lookup repository "origin")
#:fetch-options (make-fetch-options auth-method)))
(remote-fetch (remote-lookup repository "origin"))))
(let ((auth-method (%make-auth-ssh-agent)))
(remote-fetch (remote-lookup repository "origin")
#:fetch-options (make-fetch-options auth-method))))
(when recursive?
(update-submodules repository #:log-port log-port))
@ -359,9 +323,7 @@ it unchanged."
;; Reclaim file descriptors and memory mappings associated with
;; REPOSITORY as soon as possible.
(when (module-defined? (resolve-interface '(git repository))
'repository-close!)
(repository-close! repository))
(repository-close! repository)
(values cache-directory (oid->string oid) relation)))))

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@ -204,6 +204,28 @@ AC_DEFUN([GUIX_CHECK_GUILE_GCRYPT], [
fi])
])
dnl GUIX_CHECK_GUILE_GIT
dnl
dnl Check whether a recent-enough Guile-Git is available.
AC_DEFUN([GUIX_CHECK_GUILE_GIT], [
dnl Check whether we're using Guile-Git 0.3.0 or later. 0.3.0
dnl introduced SSH authentication support and more.
AC_CACHE_CHECK([whether Guile-Git is available and recent enough],
[guix_cv_have_recent_guile_git],
[GUILE_CHECK([retval],
[(use-modules (git) (git auth) (git submodule))
(let ((auth (%make-auth-ssh-agent)))
repository-close!
object-lookup-prefix
(make-clone-options
#:fetch-options (make-fetch-options auth)))])
if test "$retval" = 0; then
guix_cv_have_recent_guile_git="yes"
else
guix_cv_have_recent_guile_git="no"
fi])
])
dnl GUIX_TEST_ROOT_DIRECTORY
AC_DEFUN([GUIX_TEST_ROOT_DIRECTORY], [
AC_CACHE_CHECK([for unit test root directory],