diff options
Diffstat (limited to 'guix/git.scm')
| -rw-r--r-- | guix/git.scm | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/guix/git.scm b/guix/git.scm index ca77b9f54b..a5103547d3 100644 --- a/guix/git.scm +++ b/guix/git.scm @@ -1,6 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2017, 2020 Mathieu Othacehe <m.othacehe@gmail.com> -;;; Copyright © 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -23,8 +23,10 @@ #:use-module (git submodule) #:use-module (guix i18n) #:use-module (guix base32) + #:use-module (guix cache) #:use-module (gcrypt hash) - #:use-module ((guix build utils) #:select (mkdir-p)) + #:use-module ((guix build utils) + #:select (mkdir-p delete-file-recursively)) #:use-module (guix store) #:use-module (guix utils) #:use-module (guix records) @@ -35,6 +37,7 @@ #:use-module (rnrs bytevectors) #:use-module (ice-9 format) #:use-module (ice-9 match) + #:use-module (ice-9 ftw) #:use-module (srfi srfi-1) #:use-module (srfi srfi-11) #:use-module (srfi srfi-34) @@ -318,6 +321,24 @@ definitely available in REPOSITORY, false otherwise." (_ #f))) +(define cached-checkout-expiration + ;; Return the expiration time procedure for a cached checkout. + ;; TODO: Honor $GUIX_GIT_CACHE_EXPIRATION. + + ;; Use the mtime rather than the atime to cope with file systems mounted + ;; with 'noatime'. + (file-expiration-time (* 90 24 3600) stat:mtime)) + +(define %checkout-cache-cleanup-period + ;; Period for the removal of expired cached checkouts. + (* 5 24 3600)) + +(define (delete-checkout directory) + "Delete DIRECTORY recursively, in an atomic fashion." + (let ((trashed (string-append directory ".trashed"))) + (rename-file directory trashed) + (delete-file-recursively trashed))) + (define* (update-cached-checkout url #:key (ref '(branch . "master")) @@ -341,6 +362,14 @@ When RECURSIVE? is true, check out submodules as well, if any. When CHECK-OUT? is true, reset the cached working tree to REF; otherwise leave it unchanged." + (define (cache-entries directory) + (filter-map (match-lambda + ((or "." "..") + #f) + (file + (string-append directory "/" file))) + (or (scandir directory) '()))) + (define canonical-ref ;; We used to require callers to specify "origin/" for each branch, which ;; made little sense since the cache should be transparent to them. So @@ -387,6 +416,17 @@ it unchanged." ;; REPOSITORY as soon as possible. (repository-close! repository) + ;; When CACHE-DIRECTORY is a sub-directory of the default cache + ;; directory, remove expired checkouts that are next to it. + (let ((parent (dirname cache-directory))) + (when (string=? parent (%repository-cache-directory)) + (maybe-remove-expired-cache-entries parent cache-entries + #:entry-expiration + cached-checkout-expiration + #:delete-entry delete-checkout + #:cleanup-period + %checkout-cache-cleanup-period))) + (values cache-directory (oid->string oid) relation))))) (define* (latest-repository-commit store url |