diff options
| -rw-r--r-- | src/libstore/profiles.cc | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/src/libstore/profiles.cc b/src/libstore/profiles.cc index 29ce13b8d..d185a898c 100644 --- a/src/libstore/profiles.cc +++ b/src/libstore/profiles.cc @@ -293,17 +293,29 @@ Path getDefaultProfile() Path profileLink = getHome() + "/.nix-profile"; try { // Migrate from the “old-style” profiles stored under `/nix/var`: - // If the link exists and points to the old location, rewrite it to the - // new one (otherwise keep-it as-it-is as it might have been - // intentionnally changed, in which case we shouldn’t touch it) + // If the link exists and points to the old location, then: + // - Rewrite it to point to the new location + // - For every generation of the old default profile, create a symlink + // from the new directory to it (so that all the previous profiles + // and generations are still available). auto legacyProfile = getuid() == 0 ? settings.nixStateDir + "/profiles/default" : fmt("%s/profiles/per-user/%s/profile", settings.nixStateDir, getUserName()); - if (!pathExists(profileLink) || - (isLink(profileLink) && - readLink(profileLink) == legacyProfile) - ) { - replaceSymlink(profilesDir() + "/profile", profileLink); + auto newProfile = profilesDir() + "/profile"; + if (!pathExists(profileLink) + || (isLink(profileLink) + && readLink(profileLink) == legacyProfile)) { + warn("Migrating the default profile"); + replaceSymlink(newProfile, profileLink); + replaceSymlink(legacyProfile, newProfile); + if (pathExists(legacyProfile)) { + for (auto & oldGen : findGenerations(legacyProfile).first) { + replaceSymlink( + oldGen.path, + dirOf(newProfile) + "/" + + std::string(baseNameOf(oldGen.path))); + } + } } return absPath(readLink(profileLink), dirOf(profileLink)); } catch (Error &) { |