diff options
| -rw-r--r-- | guix/store.scm | 34 | ||||
| -rw-r--r-- | tests/store.scm | 10 |
2 files changed, 43 insertions, 1 deletions
diff --git a/guix/store.scm b/guix/store.scm index 3d6b06989c..10b9062db2 100644 --- a/guix/store.scm +++ b/guix/store.scm @@ -60,6 +60,7 @@ valid-path? query-path-hash hash-part->path + query-path-info add-text-to-store add-to-store build-things @@ -79,6 +80,13 @@ substitutable-paths substitutable-path-info + path-info? + path-info-deriver + path-info-hash + path-info-references + path-info-registration-time + path-info-nar-size + references requisites referrers @@ -212,6 +220,24 @@ (cons (substitutable path deriver refs dl-size nar-size) result)))))) +;; Information about a store path. +(define-record-type <path-info> + (path-info deriver hash references registration-time nar-size) + path-info? + (deriver path-info-deriver) + (hash path-info-hash) + (references path-info-references) + (registration-time path-info-registration-time) + (nar-size path-info-nar-size)) + +(define (read-path-info p) + (let ((deriver (read-store-path p)) + (hash (base16-string->bytevector (read-string p))) + (refs (read-store-path-list p)) + (registration-time (read-int p)) + (nar-size (read-long-long p))) + (path-info deriver hash refs registration-time nar-size))) + (define-syntax write-arg (syntax-rules (integer boolean file string string-list string-pairs store-path store-path-list base16) @@ -236,7 +262,7 @@ (define-syntax read-arg (syntax-rules (integer boolean string store-path store-path-list - substitutable-path-list base16) + substitutable-path-list path-info base16) ((_ integer p) (read-int p)) ((_ boolean p) @@ -249,6 +275,8 @@ (read-store-path-list p)) ((_ substitutable-path-list p) (read-substitutable-path-list p)) + ((_ path-info p) + (read-path-info p)) ((_ base16 p) (base16-string->bytevector (read-string p))))) @@ -541,6 +569,10 @@ string). Raise an error if no such path exists." ;; /HASH.narinfo. (query-path-from-hash-part server hash-part)))) +(define-operation (query-path-info (store-path path)) + "Return the info (hash, references, etc.) for PATH." + path-info) + (define add-text-to-store ;; A memoizing version of `add-to-store', to avoid repeated RPCs with ;; the very same arguments during a given session. diff --git a/tests/store.scm b/tests/store.scm index f778c2086d..eeceed45c1 100644 --- a/tests/store.scm +++ b/tests/store.scm @@ -606,6 +606,16 @@ (file (add %store "foo" "Lowered."))) (call-with-input-file file get-string-all))) +(test-assert "query-path-info" + (let* ((ref (add-text-to-store %store "ref" "foo")) + (item (add-text-to-store %store "item" "bar" (list ref))) + (info (query-path-info %store item))) + (and (equal? (path-info-references info) (list ref)) + (equal? (path-info-hash info) + (sha256 + (string->utf8 + (call-with-output-string (cut write-file item <>)))))))) + (test-end "store") |