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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Date: Wed, 13 Mar 2024 18:42:19 +0100 Message-ID: <40858e56cf55b27711d23add5f3cd2ccc6ea5c58.1710351278.git.ludo@gnu.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Spam-Score: -4.69 X-Spam-Score: -4.69 X-Migadu-Queue-Id: A3E8852097 X-Migadu-Scanner: mx13.migadu.com X-TUID: wN30p4gyEsU0 * guix/scripts/git/authenticate.scm (%default-options): Remove ‘keyring-reference’. (config-value, configured-introduction, configured-keyring-reference) (configured?, record-configuration): New procedures. (guix-git-authenticate)[missing-arguments]: New procedure. Use ‘configured-introduction’ when zero arguments are given. Use ‘configured-keyring-reference’ when ‘-k’ is not passed. Add call to ‘record-configuration’. * doc/guix.texi (Invoking guix git authenticate): Document it. Change-Id: I66e111a83f50407b52da71662629947f83a78bbc --- doc/guix.texi | 12 ++- guix/scripts/git/authenticate.scm | 128 ++++++++++++++++++++++-------- tests/guix-git-authenticate.sh | 9 ++- 3 files changed, 112 insertions(+), 37 deletions(-) diff --git a/doc/guix.texi b/doc/guix.texi index 858d5751bf..ac0766b98c 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -7615,8 +7615,16 @@ Invoking guix git authenticate and non-zero on failure. @var{commit} above denotes the first commit where authentication takes place, and @var{signer} is the OpenPGP fingerprint of public key used to sign @var{commit}. Together, they -form a ``channel introduction'' (@pxref{channel-authentication, channel -introduction}). The options below allow you to fine-tune the process. +form a @dfn{channel introduction} (@pxref{channel-authentication, channel +introduction}). On your first successful run, the introduction is +recorded in the @file{.git/config} file of your checkout, allowing you +to omit them from subsequent invocations: + +@example +guix git authenticate [@var{options}@dots{}] +@end example + +The options below allow you to fine-tune the process. @table @code @item --repository=@var{directory} diff --git a/guix/scripts/git/authenticate.scm b/guix/scripts/git/authenticate.scm index 6ff5cee682..d3cc4065df 100644 --- a/guix/scripts/git/authenticate.scm +++ b/guix/scripts/git/authenticate.scm @@ -31,6 +31,7 @@ (define-module (guix scripts git authenticate) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26) #:use-module (srfi srfi-37) + #:use-module (srfi srfi-71) #:use-module (ice-9 format) #:use-module (ice-9 match) #:export (guix-git-authenticate)) @@ -73,8 +74,60 @@ (define %options (alist-cons 'show-stats? #t result))))) (define %default-options - '((directory . ".") - (keyring-reference . "keyring"))) + '((directory . "."))) + +(define (config-value config key) + "Return the config value associated with KEY, or #f if no such config was +found." + (catch 'git-error + (lambda () + (config-entry-value (config-get-entry config key))) + (const #f))) + +(define (configured-introduction repository) + "Return two values: the commit and signer fingerprint (strings) as +configured in REPOSITORY. Error out if one or both were missing." + (let* ((config (repository-config repository)) + (commit (config-value config "guix.authentication.introduction-commit")) + (signer (config-value config "guix.authentication.introduction-signer"))) + (unless (and commit signer) + (leave (G_ "unknown introductory commit and signer~%"))) + (values commit signer))) + +(define (configured-keyring-reference repository) + "Return the keyring reference configured in REPOSITORY or #f if missing." + (let ((config (repository-config repository))) + (config-value config "guix.authentication.keyring"))) + +(define (configured? repository) + "Return true if REPOSITORY already container introduction info in its +'config' file." + (let ((config (repository-config repository))) + (and (config-value config "guix.authentication.introduction-commit") + (config-value config "guix.authentication.introduction-signer")))) + +(define* (record-configuration repository + #:key commit signer keyring-reference) + "Record COMMIT, SIGNER, and KEYRING-REFERENCE in the 'config' file of +REPOSITORY." + (define directory + (repository-directory repository)) + + (define config-file + (in-vicinity directory "config")) + + (call-with-port (open-file config-file "a") + (lambda (port) + (format port " +# Added by 'guix git authenticate'. +[guix \"authentication\"] + introduction-commit = ~a + introduction-signer = ~a + keyring = ~a~%" + commit signer keyring-reference))) + + (info (G_ "introduction and keyring configuration recorded in '~a'~%") + config-file)) (define (show-stats stats) "Display STATS, an alist containing commit signing stats as returned by @@ -156,35 +209,48 @@ (define (guix-git-authenticate . args) (progress-reporter/bar (length commits)) progress-reporter/silent)) + (define (missing-arguments) + (leave (G_ "wrong number of arguments; \ +expected COMMIT and SIGNER~%"))) + (with-error-handling (with-git-error-handling - (match (command-line-arguments options) - ((commit signer) - (let* ((directory (assoc-ref options 'directory)) - (show-stats? (assoc-ref options 'show-stats?)) - (keyring (assoc-ref options 'keyring-reference)) - (repository (repository-open directory)) - (end (match (assoc-ref options 'end-commit) - (#f (reference-target - (repository-head repository))) - (oid oid))) - (history (match (assoc-ref options 'historical-authorizations) - (#f '()) - (file (call-with-input-file file - read-authorizations)))) - (cache-key (or (assoc-ref options 'cache-key) - (repository-cache-key repository)))) - (define stats - (authenticate-repository repository (string->oid commit) - (openpgp-fingerprint* signer) - #:end end - #:keyring-reference keyring - #:historical-authorizations history - #:cache-key cache-key - #:make-reporter make-reporter)) + (let* ((directory (assoc-ref options 'directory)) + (show-stats? (assoc-ref options 'show-stats?)) + (repository (repository-open directory)) + (commit signer (match (command-line-arguments options) + ((commit signer) + (values commit signer)) + (() + (configured-introduction repository)) + (_ + (missing-arguments)))) + (keyring (or (assoc-ref options 'keyring-reference) + (configured-keyring-reference repository) + "keyring")) + (end (match (assoc-ref options 'end-commit) + (#f (reference-target + (repository-head repository))) + (oid oid))) + (history (match (assoc-ref options 'historical-authorizations) + (#f '()) + (file (call-with-input-file file + read-authorizations)))) + (cache-key (or (assoc-ref options 'cache-key) + (repository-cache-key repository)))) + (define stats + (authenticate-repository repository (string->oid commit) + (openpgp-fingerprint* signer) + #:end end + #:keyring-reference keyring + #:historical-authorizations history + #:cache-key cache-key + #:make-reporter make-reporter)) - (when (and show-stats? (not (null? stats))) - (show-stats stats)))) - (_ - (leave (G_ "wrong number of arguments; \ -expected COMMIT and SIGNER~%"))))))) + (unless (configured? repository) + (record-configuration repository + #:commit commit #:signer signer + #:keyring-reference keyring)) + + (when (and show-stats? (not (null? stats))) + (show-stats stats)))))) diff --git a/tests/guix-git-authenticate.sh b/tests/guix-git-authenticate.sh index ec89f941e6..db60816d45 100644 --- a/tests/guix-git-authenticate.sh +++ b/tests/guix-git-authenticate.sh @@ -1,5 +1,5 @@ # GNU Guix --- Functional package management for GNU -# Copyright © 2020, 2022 Ludovic Courtès +# Copyright © 2020, 2022, 2024 Ludovic Courtès # # This file is part of GNU Guix. # @@ -40,10 +40,11 @@ guix git authenticate "$intro_commit" "$intro_signer" \ --end=9549f0283a78fe36f2d4ff2a04ef8ad6b0c02604 && false # The v1.2.0 commit is a descendant of $intro_commit and it satisfies the -# authorization invariant. +# authorization invariant. No need to repeat $intro_commit and $intro_signer +# because it should have been recorded in '.git/config'. v1_2_0_commit="a099685659b4bfa6b3218f84953cbb7ff9e88063" -guix git authenticate "$intro_commit" "$intro_signer" \ - --cache-key="$cache_key" --stats \ +guix git authenticate \ + --cache-key="$cache_key" --stats \ --end="$v1_2_0_commit" rm "$XDG_CACHE_HOME/guix/authentication/$cache_key" -- 2.41.0