From 8390869811f56f5b2ff947efb9d48bcf219a0444 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Tue, 13 Nov 2018 11:38:00 +0100
Subject: tests: Check file canonicalization for 'restore-file-set'.

* guix/tests.scm (canonical-file?): New procedure.
* tests/nar.scm ("restore-file-set (signed, valid)"): Check that every
item of FILES matches 'canonical-file?'.
---
 guix/tests.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'guix/tests.scm')

diff --git a/guix/tests.scm b/guix/tests.scm
index 66524ddc2f..f4948148c4 100644
--- a/guix/tests.scm
+++ b/guix/tests.scm
@@ -36,6 +36,7 @@
             random-text
             random-bytevector
             file=?
+            canonical-file?
             network-reachable?
             shebang-too-long?
             mock
@@ -150,6 +151,14 @@ too expensive to build entirely in the test store."
          (else
           (error "what?" (lstat a))))))
 
+(define (canonical-file? file)
+  "Return #t if FILE is in the store, is read-only, and its mtime is 1."
+  (let ((st (lstat file)))
+    (or (not (string-prefix? (%store-prefix) file))
+        (eq? 'symlink (stat:type st))
+        (and (= 1 (stat:mtime st))
+             (zero? (logand #o222 (stat:mode st)))))))
+
 (define (network-reachable?)
   "Return true if we can reach the Internet."
   (false-if-exception (getaddrinfo "www.gnu.org" "80" AI_NUMERICSERV)))
-- 
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