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| author | Ludovic Courtès <ludo@gnu.org> | 2017-10-04 21:34:09 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2017-10-05 12:09:17 +0200 |
| commit | aed1f1b049f6e7ef9f2f2db58bdca6cd3effe94b (patch) | |
| tree | ee6ee785d2113ef13e593459fdbe1efd925181c7 /gnu/system/uuid.scm | |
| parent | 67a08f1809c5a67dfb862ccdc3dc4e13ae35dcbf (diff) | |
| download | gnu-guix-aed1f1b049f6e7ef9f2f2db58bdca6cd3effe94b.tar gnu-guix-aed1f1b049f6e7ef9f2f2db58bdca6cd3effe94b.tar.gz | |
uuid: Add 'uuid=?' and use it.
* gnu/system/uuid.scm (uuid=?): New procedure.
* tests/uuid.scm ("uuid=?"): New test.
* gnu/build/file-systems.scm (partition-uuid-predicate)
(luks-partition-uuid-predicate): Use it instead of 'bytevector=?'.
Diffstat (limited to 'gnu/system/uuid.scm')
| -rw-r--r-- | gnu/system/uuid.scm | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gnu/system/uuid.scm b/gnu/system/uuid.scm index 6470abb8cc..e422e06a6d 100644 --- a/gnu/system/uuid.scm +++ b/gnu/system/uuid.scm @@ -29,6 +29,7 @@ uuid? uuid-type uuid-bytevector + uuid=? bytevector->uuid @@ -281,3 +282,15 @@ corresponding bytevector; otherwise return #f." ((_ . (? procedure? unparse)) (unparse bv)))) (((? uuid? uuid)) (uuid->string (uuid-bytevector uuid) (uuid-type uuid))))) + +(define uuid=? + ;; Return true if A is equal to B, comparing only the actual bits. + (match-lambda* + (((? bytevector? a) (? bytevector? b)) + (bytevector=? a b)) + (((? uuid? a) (? bytevector? b)) + (bytevector=? (uuid-bytevector a) b)) + (((? uuid? a) (? uuid? b)) + (bytevector=? (uuid-bytevector a) (uuid-bytevector b))) + ((a b) + (uuid=? b a)))) |