wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-07-06 21:41:48 +02:00
Code Activity

* Allow read-only access to the store (e.g., non-root users on NixOS

Browse source 
can do operations like "nix-store -qR <path>" even without the Nix
  daemon).
This commit is contained in:
Eelco Dolstra 2008-07-18 15:34:46 +00:00
parent 8bc591a6f0
commit 989176c56e
2 changed files with 11 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

14
src/libstore/local-store.cc
View file

@ -15,6 +15,7 @@
#include <unistd.h>
#include <utime.h>
#include <fcntl.h>
#include <errno.h>
namespace nix {
@ -48,8 +49,14 @@ LocalStore::LocalStore()
checkStoreNotSymlink();
Path globalLockPath = nixDBPath + "/big-lock";
globalLock = openLockFile(globalLockPath.c_str(), true);
try {
Path globalLockPath = nixDBPath + "/big-lock";
globalLock = openLockFile(globalLockPath.c_str(), true);
} catch (SysError & e) {
if (e.errNo != EACCES) throw;
readOnlyMode = true;
return;
}
if (!lockFile(globalLock, ltRead, false)) {
printMsg(lvlError, "waiting for the big Nix store lock...");
@ -59,9 +66,6 @@ LocalStore::LocalStore()
createDirs(nixDBPath + "/info");
createDirs(nixDBPath + "/referrer");
//printMsg(lvlTalkative, "cannot access Nix database; continuing anyway");
//readOnlyMode = true;
int curSchema = getSchema();
if (curSchema > nixSchemaVersion)
throw Error(format("current Nix store schema is version %1%, but I only support %2%")