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authorLudovic Courtès <ludo@gnu.org>2013-09-23 21:24:18 +0200
committerLudovic Courtès <ludo@gnu.org>2013-09-23 23:56:35 +0200
commitcaf96debc257dee9ad8b0ea74cc6a8241c30dad4 (patch)
tree746a3a19fdb7b8462eb4e9466d182a11a4cc8136 /nix/guix-register
parenta4141d6d5326925174ef10a7d84ec72f03d6a6cb (diff)
downloadguix-caf96debc257dee9ad8b0ea74cc6a8241c30dad4.tar.gz
guix-register: Expect closures to refer to the original store.
* nix/guix-register/guix-register.cc (prefix): New variable.
  (parse_opt): Use it.
  (register_validity): Change 'info.path' to the final store name.
  Hash the final under its real path.
* tests/guix-register.sh: Adjust the contents of $closure accordingly.
  Rename 'NIX_LOCALSTATE_DIR' to 'NIX_STATE_DIR'.  Don't try to call
  'valid-path?'.  Add test using 'sqlite3'.
Diffstat (limited to 'nix/guix-register')
-rw-r--r--nix/guix-register/guix-register.cc22
1 files changed, 18 insertions, 4 deletions
diff --git a/nix/guix-register/guix-register.cc b/nix/guix-register/guix-register.cc
index 0a028f0cfe..8f9c3c86ab 100644
--- a/nix/guix-register/guix-register.cc
+++ b/nix/guix-register/guix-register.cc
@@ -62,6 +62,10 @@ static const struct argp_option options[] =
     { 0, 0, 0, 0, 0 }
   };
 
+
+/* Prefix of the store being populated.  */
+static std::string prefix;
+
 /* Parse a single option. */
 static error_t
 parse_opt (int key, char *arg, struct argp_state *state)
@@ -70,8 +74,8 @@ parse_opt (int key, char *arg, struct argp_state *state)
     {
     case 'p':
       {
-	string prefix = canonPath (arg);
-	settings.nixStore = prefix + NIX_STORE_DIR;
+	prefix = canonPath (arg);
+	settings.nixStore = NIX_STORE_DIR;
 	settings.nixDataDir = prefix + NIX_DATA_DIR;
 	settings.nixLogDir = prefix + NIX_LOG_DIR;
 	settings.nixStateDir = prefix + NIX_STATE_DIR;
@@ -128,15 +132,25 @@ register_validity (LocalStore *store, std::istream &input,
       ValidPathInfo info = decodeValidPathInfo (input, hashGiven);
       if (info.path == "")
 	break;
+
+      /* Rewrite the input to refer final name, as if we were in a chroot
+	 under PREFIX.  */
+      std::string final_prefix (NIX_STORE_DIR "/");
+      info.path = final_prefix + baseNameOf (info.path);
+
+      /* Keep its real path to canonicalize it and compute its hash.  */
+      std::string real_path;
+      real_path = prefix + "/" + settings.nixStore + "/" + baseNameOf (info.path);
+
       if (!store->isValidPath (info.path) || reregister)
 	{
 	  /* !!! races */
 	  if (canonicalise)
-	    canonicalisePathMetaData (info.path, -1);
+	    canonicalisePathMetaData (real_path, -1);
 
 	  if (!hashGiven)
 	    {
-	      HashResult hash = hashPath (htSHA256, info.path);
+	      HashResult hash = hashPath (htSHA256, real_path);
 	      info.hash = hash.first;
 	      info.narSize = hash.second;
 	    }