diff options
Diffstat (limited to 'build-aux/git-authenticate.scm')
| -rw-r--r-- | build-aux/git-authenticate.scm | 80 |
1 files changed, 70 insertions, 10 deletions
diff --git a/build-aux/git-authenticate.scm b/build-aux/git-authenticate.scm index dd7029d438..ec67b589ca 100644 --- a/build-aux/git-authenticate.scm +++ b/build-aux/git-authenticate.scm @@ -24,6 +24,7 @@ (guix git) (guix gnupg) (guix utils) + ((guix build utils) #:select (mkdir-p)) (guix i18n) (guix progress) (srfi srfi-1) @@ -31,8 +32,10 @@ (srfi srfi-26) (srfi srfi-34) (srfi srfi-35) + (rnrs io ports) (ice-9 match) - (ice-9 format)) + (ice-9 format) + (ice-9 pretty-print)) (define %committers @@ -297,6 +300,49 @@ each of them. Return an alist showing the number of occurrences of each key." ;;; +;;; Caching. +;;; + +(define (authenticated-commit-cache-file) + "Return the name of the file that contains the cache of +previously-authenticated commits." + (string-append (cache-directory) "/authentication/channels/guix")) + +(define (previously-authenticated-commits) + "Return the previously-authenticated commits as a list of commit IDs (hex +strings)." + (catch 'system-error + (lambda () + (call-with-input-file (authenticated-commit-cache-file) + read)) + (lambda args + (if (= ENOENT (system-error-errno args)) + '() + (apply throw args))))) + +(define (cache-authenticated-commit commit-id) + "Record in ~/.cache COMMIT-ID and its closure as authenticated (only +COMMIT-ID is written to cache, though)." + (define %max-cache-length + ;; Maximum number of commits in cache. + 200) + + (let ((lst (delete-duplicates + (cons commit-id (previously-authenticated-commits)))) + (file (authenticated-commit-cache-file))) + (mkdir-p (dirname file)) + (with-atomic-file-output file + (lambda (port) + (let ((lst (if (> (length lst) %max-cache-length) + (take lst %max-cache-length) ;truncate + lst))) + (chmod port #o600) + (display ";; List of previously-authenticated commits.\n\n" + port) + (pretty-print lst port)))))) + + +;;; ;;; Entry point. ;;; @@ -312,8 +358,19 @@ each of them. Return an alist showing the number of occurrences of each key." (define end-commit (commit-lookup repository (string->oid end))) + (define authenticated-commits + ;; Previously-authenticated commits that don't need to be checked + ;; again. + (filter-map (lambda (id) + (false-if-exception + (commit-lookup repository (string->oid id)))) + (previously-authenticated-commits))) + (define commits - (commit-difference end-commit start-commit)) + ;; Commits to authenticate, excluding the closure of + ;; AUTHENTICATED-COMMITS. + (commit-difference end-commit start-commit + authenticated-commits)) (define reporter (progress-reporter/bar (length commits))) @@ -327,14 +384,17 @@ each of them. Return an alist showing the number of occurrences of each key." (lambda (report) (authenticate-commits repository commits #:report-progress report))))) - (format #t (G_ "Signing statistics:~%")) - (for-each (match-lambda - ((signer . count) - (format #t " ~a ~10d~%" signer count))) - (sort stats - (match-lambda* - (((_ . count1) (_ . count2)) - (> count1 count2))))))) + (cache-authenticated-commit (oid->string (commit-id end-commit))) + + (unless (null? stats) + (format #t (G_ "Signing statistics:~%")) + (for-each (match-lambda + ((signer . count) + (format #t " ~a ~10d~%" signer count))) + (sort stats + (match-lambda* + (((_ . count1) (_ . count2)) + (> count1 count2)))))))) ((command start) (let* ((head (repository-head repository)) (end (reference-target head))) |